:root {
  color-scheme: dark;
  --bg: #0d0f12;
  --panel: #15181c;
  --panel-2: #1b1f24;
  --sidebar-bg: #111417;
  --border: #262b31;
  --border-soft: #1e2227;
  --text: #ecedef;
  --muted: #8a909a;
  --muted-2: #5f6570;
  --accent: #22c55e;
  --accent-dim: #16a34a;
  --accent-tint: rgba(34, 197, 94, 0.12);
  --user-bubble: #151d18;
  --success: #4ade80;
  --danger: #e0685c;
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --font-serif: "Instrument Serif", Georgia, "Times New Roman", serif;
}

/* ---------------- Light / Black & White Theme ---------------- */
[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f7fa;
  --panel: #ffffff;
  --panel-2: #edf0f5;
  --sidebar-bg: #eaedf2;
  --border: #d4dae2;
  --border-soft: #e2e7ee;
  --text: #111418;
  --muted: #535a64;
  --muted-2: #7a8492;
  --accent: #16a34a;
  --accent-dim: #15803d;
  --accent-tint: rgba(22, 163, 74, 0.12);
  --user-bubble: #eaf5ee;
  --success: #16a34a;
  --danger: #dc3527;
}

[data-theme="light"] .composer-bar,
[data-theme="light"] .composer {
  background: #ffffff !important;
  border-color: #d4dae2 !important;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.07) !important;
}

[data-theme="light"] .composer-toolbar {
  border-top-color: #edf0f5 !important;
}

[data-theme="light"] .attach-btn,
[data-theme="light"] .presets-btn,
[data-theme="light"] .mic-btn {
  background: #f8fafc !important;
  border-color: #d4dae2 !important;
  color: #535a64 !important;
}

[data-theme="light"] .attach-btn:hover,
[data-theme="light"] .presets-btn:hover,
[data-theme="light"] .mic-btn:hover {
  color: var(--accent) !important;
  border-color: var(--accent-dim) !important;
  background: var(--accent-tint) !important;
}

[data-theme="light"] .composer-dropdown-menu {
  background: #ffffff !important;
  border-color: #d4dae2 !important;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.14) !important;
}

[data-theme="light"] .composer-menu-header {
  border-bottom-color: #edf0f5 !important;
  color: #64748b !important;
}

[data-theme="light"] .composer-menu-item:hover {
  background: #f1f4f8 !important;
}

[data-theme="light"] .empty-logo {
  background: radial-gradient(circle, rgba(22, 163, 74, 0.14) 0%, rgba(22, 163, 74, 0.03) 75%) !important;
  border-color: rgba(22, 163, 74, 0.25) !important;
  box-shadow: 0 8px 24px rgba(22, 163, 74, 0.1) !important;
}

[data-theme="light"] .topbar {
  background: rgba(245, 247, 250, 0.92) !important;
  border-bottom-color: #e2e7ee !important;
}

[data-theme="light"] .ai-bubble {
  color: #111418 !important;
}

[data-theme="light"] .avatar.ai {
  background: #ffffff !important;
  border-color: rgba(22, 163, 74, 0.4) !important;
  box-shadow: 0 2px 8px rgba(22, 163, 74, 0.12) !important;
}

[data-theme="light"] .document-card {
  background: #ffffff !important;
  border-color: #d4dae2 !important;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06) !important;
}

[data-theme="light"] .document-header {
  background: #f8fafc !important;
  border-bottom-color: #e2e8f0 !important;
}

[data-theme="light"] .document-body {
  background: #fbfcfe !important;
  color: #1e293b !important;
}

[data-theme="light"] .document-body::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.04) !important;
}

[data-theme="light"] .document-body::-webkit-scrollbar-thumb {
  background: rgba(22, 163, 74, 0.35) !important;
}

[data-theme="light"] .user-bubble,
body.light-theme .user-bubble {
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%) !important;
  border-color: #fdba74 !important;
  color: #431407 !important;
  box-shadow: 0 2px 10px rgba(249, 115, 22, 0.1) !important;
}

[data-theme="light"] .cortex-math-display,
[data-theme="light"] .katex-display {
  background: #edf0f5 !important;
  border-color: #d4dae2 !important;
  color: #111418 !important;
}

[data-theme="light"] .cortex-math-display .katex,
[data-theme="light"] .katex-display .katex,
[data-theme="light"] .cortex-math-inline,
[data-theme="light"] .katex {
  color: #111418 !important;
}

[data-theme="light"] .code-block-wrapper {
  background: #1e2227 !important;
  border-color: #d4dae2 !important;
}

[data-theme="light"] .conversation-item:hover {
  background: rgba(0, 0, 0, 0.05) !important;
  color: #111418 !important;
}

[data-theme="light"] .conversation-item.active {
  background: #ffffff !important;
  color: #111418 !important;
  border-color: #d4dae2 !important;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .sidebar-search-box {
  background: #ffffff !important;
  border-color: #d4dae2 !important;
}

[data-theme="light"] .sidebar-search-box input {
  color: #111418 !important;
}

[data-theme="light"] .conv-rename-input {
  background: #ffffff !important;
  color: #111418 !important;
  border-color: var(--accent) !important;
}

[data-theme="light"] .model-select {
  background: #ffffff !important;
  border-color: #d4dae2 !important;
  color: #111418 !important;
}

[data-theme="light"] .topbar-export-btn,
[data-theme="light"] .topbar-theme-btn {
  background: #ffffff !important;
  border-color: #d4dae2 !important;
  color: #111418 !important;
}

[data-theme="light"] .user-profile-card {
  background: transparent !important;
  border-color: transparent !important;
  color: #111418 !important;
}

[data-theme="light"] .user-profile-card:hover {
  background: #edf2f7 !important;
  border-color: #e2e8f0 !important;
}

[data-theme="light"] .composer-pill {
  background: #ffffff !important;
  border-color: #d4dae2 !important;
  color: #4b5563 !important;
}
[data-theme="light"] .composer-pill:hover {
  background: #f3f4f6 !important;
  color: #111827 !important;
}
[data-theme="light"] .artifact-split-panel {
  background: #ffffff !important;
  border-left-color: #e5e7eb !important;
}
[data-theme="light"] .artifact-panel-header {
  background: #f9fafb !important;
  border-bottom-color: #e5e7eb !important;
}
[data-theme="light"] .thought-box {
  background: rgba(34, 197, 94, 0.05) !important;
  border-color: rgba(34, 197, 94, 0.3) !important;
}
[data-theme="light"] .thought-content {
  color: #374151 !important;
  background: #fafafa !important;
  border-top-color: #e5e7eb !important;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
}

body { overflow: hidden; }
button, textarea, input { font: inherit; color: inherit; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

.desktop-only { display: flex; }
.mobile-only { display: none; }
@media (max-width: 768px) {
  .desktop-only { display: none !important; }
  .mobile-only { display: flex !important; }
}

/* ---------------- Layout & Sidebar ---------------- */

.layout-container {
  display: flex;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  position: relative;
}

.sidebar {
  width: 260px;
  flex: 0 0 260px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: width 0.22s cubic-bezier(0.16, 1, 0.3, 1), flex-basis 0.22s cubic-bezier(0.16, 1, 0.3, 1), transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 40;
  overflow: hidden;
}

.layout-container.sidebar-collapsed .sidebar {
  width: 60px !important;
  flex: 0 0 60px !important;
  min-width: 60px !important;
  max-width: 60px !important;
  opacity: 1 !important;
  pointer-events: auto !important;
  border-right: 1px solid var(--border-soft) !important;
  overflow: visible !important;
}

.layout-container.sidebar-collapsed .sidebar > *:not(#sidebarRail):not(#userProfileMenu) {
  display: none !important;
}

.layout-container.sidebar-collapsed .sidebar-rail {
  display: flex !important;
}

.layout-container.sidebar-collapsed #userProfileMenu {
  position: fixed !important;
  left: 68px !important;
  bottom: 12px !important;
  z-index: 1000 !important;
}

.sidebar-header {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-bottom: 1px solid var(--border-soft);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: #22c55e;
  background: #0a0d10;
  border: 1px solid rgba(34, 197, 94, 0.45);
  box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.2), 0 4px 14px rgba(0, 0, 0, 0.5), inset 0 0 10px rgba(34, 197, 94, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.logo:hover {
  transform: scale(1.06);
  border-color: rgba(74, 222, 128, 0.7);
  box-shadow: 0 0 0 1px rgba(74, 222, 128, 0.35), 0 6px 18px rgba(34, 197, 94, 0.25);
}

.brand-text {
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  color: #4ade80;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 4px;
  padding: 1px 6px;
  font-weight: 600;
}

.sidebar-action {
  padding: 14px 14px 10px;
}

.new-chat-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.new-chat-btn:hover {
  background: var(--panel-2);
  border-color: #3b424a;
  transform: translateY(-1px);
}

.sidebar-search-box {
  position: relative;
  display: flex;
  align-items: center;
  margin-top: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 10px;
  transition: all 0.15s ease;
}

.sidebar-search-box:focus-within {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
}

.sidebar-search-box .search-icon {
  color: var(--muted);
  flex-shrink: 0;
  margin-right: 6px;
}

.sidebar-search-box input {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 12px;
  padding: 6px 0;
  outline: none;
}

.sidebar-search-box input::placeholder {
  color: var(--muted-2);
}

.search-clear-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 2px 4px;
  font-size: 11px;
  border-radius: 4px;
  flex-shrink: 0;
}

.search-clear-btn:hover {
  color: var(--text);
}

.sidebar-section-title {
  padding: 10px 14px 4px;
  font-size: 10.5px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted-2);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
}

.conversations-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.conversations-list::-webkit-scrollbar { width: 6px; }
.conversations-list::-webkit-scrollbar-thumb { background: #262b32; border-radius: 6px; }
.conversations-list::-webkit-scrollbar-thumb:hover { background: #323842; }

.conversation-item {
  display: flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  user-select: none;
  position: relative;
  min-height: 34px;
}

.conversation-item:hover {
  background: var(--panel);
  color: var(--text);
}

.conversation-item.active {
  background: var(--panel-2);
  color: #fff;
  border-color: var(--border);
  font-weight: 500;
}

.conversation-item .conv-pin-badge {
  color: var(--accent);
  margin-right: 5px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
}

.conv-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
  margin-right: 4px;
}

.conv-actions {
  display: none;
  align-items: center;
  gap: 2px;
  margin-left: auto;
  flex-shrink: 0;
}

.conversation-item:hover .conv-actions,
.conversation-item.active .conv-actions {
  display: flex;
}

.conv-action-btn {
  background: transparent;
  border: 0;
  color: var(--muted-2);
  cursor: pointer;
  padding: 3px;
  border-radius: 4px;
  display: grid;
  place-items: center;
  transition: all 0.12s ease;
}

.conv-action-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.conv-action-btn.delete-btn:hover {
  color: var(--danger);
  background: rgba(224, 104, 92, 0.15);
}

.conv-action-btn.pin-btn:hover {
  color: var(--accent);
}

.conv-action-btn.pin-btn.is-pinned {
  color: var(--accent);
}

.conv-rename-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--accent);
  color: var(--text);
  font-size: 12.5px;
  padding: 3px 6px;
  border-radius: 4px;
  outline: none;
  font-family: inherit;
}

.conv-group-header {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-2);
  padding: 10px 8px 4px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.conv-count-badge {
  font-size: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
  padding: 1px 6px;
  border-radius: 10px;
}

.sidebar-empty-note {
  padding: 14px 10px;
  font-size: 12px;
  color: var(--muted-2);
  text-align: center;
  font-style: italic;
}

.sidebar-footer {
  padding: 10px 12px;
  border-top: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  position: relative;
}

.footer-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  color: var(--muted-2);
  font-family: var(--font-mono);
}

.footer-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
}

/* ---------------- Topbar ---------------- */

.app-shell {
  flex: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  min-width: 0;
  position: relative;
}

.topbar {
  height: 64px;
  flex: 0 0 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-soft);
  background: rgba(13, 15, 18, 0.94);
  backdrop-filter: blur(14px);
  z-index: 10;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.chat-title-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.chat-title-header {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 300px;
  cursor: pointer;
  border-bottom: 1px dashed transparent;
  transition: all 0.15s ease;
}

.chat-title-header:hover {
  border-bottom-color: var(--accent);
}

.title-edit-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 3px;
  border-radius: 4px;
  display: grid;
  place-items: center;
  opacity: 0.5;
  transition: all 0.15s ease;
}

.title-edit-btn:hover {
  opacity: 1;
  color: var(--accent);
  background: var(--accent-tint);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.topbar-theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 9px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.topbar-theme-btn:hover {
  color: var(--text);
  border-color: var(--accent-dim);
  background: var(--panel-2);
  transform: translateY(-1px);
}

.topbar-theme-btn svg {
  display: block;
}

.topbar-export-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11.5px;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.topbar-export-btn:hover {
  color: var(--text);
  border-color: var(--accent-dim);
  background: var(--panel-2);
}

.topbar-export-btn svg {
  color: var(--accent);
}

.model-picker-wrap {
  display: flex;
  align-items: center;
}

.model-select {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--panel);
  outline: none;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.model-select:hover {
  border-color: var(--accent-dim);
  background: var(--panel-2);
}

.model-select:focus {
  border-color: var(--accent);
}

.model-select option {
  background: #15181c;
  color: #ecedef;
  font-family: var(--font-mono);
}

.icon-btn-ghost {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.icon-btn-ghost:hover {
  background: var(--panel);
  color: var(--text);
  border-color: var(--border);
}

/* ---------------- Chat area ---------------- */

.chat-area {
  flex: 1;
  overflow-y: auto;
  padding: 28px 20px 170px;
  scroll-behavior: smooth;
}

.chat-area::-webkit-scrollbar { width: 10px; }
.chat-area::-webkit-scrollbar-thumb { background: #262b31; border-radius: 10px; }
.chat-area::-webkit-scrollbar-thumb:hover { background: #333942; }

.message-row {
  width: min(820px, 100%);
  margin: 0 auto 28px;
  display: flex;
  gap: 14px;
  animation: rise 0.25s ease;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.avatar {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  flex: 0 0 30px;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  margin-top: 2px;
  font-family: var(--font-mono);
}

.avatar.user { background: var(--panel-2); color: var(--text); border: 1px solid var(--border); }
.avatar.ai {
  background: #0f1418;
  border: 1px solid rgba(34, 197, 94, 0.32);
  color: var(--accent);
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  overflow: hidden;
  border-radius: 8px;
}
.avatar.ai svg {
  width: 18px;
  height: 18px;
  display: block;
  flex-shrink: 0;
}

.message-col { min-width: 0; max-width: 100%; flex: 1; }

.bubble {
  min-width: 0;
  max-width: 100%;
  line-height: 1.65;
  font-size: 15px;
}

/* Modern ChatGPT-Style User Message (Compact, Dynamic, Right-Aligned) */
.message-row.user {
  justify-content: flex-end;
  margin-bottom: 20px;
}

.message-row.user .message-col {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  max-width: min(760px, 82%);
  flex: 0 1 auto;
}

.avatar.user {
  display: none !important; /* Pure ChatGPT style - no bulky avatar beside prompt */
}

.user-bubble {
  background: rgba(249, 115, 22, 0.12);
  border: 1px solid rgba(249, 115, 22, 0.28);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  border-radius: 18px 18px 4px 18px;
  padding: 8px 15px;
  color: #f8fafc;
  font-size: 14.5px;
  line-height: 1.5;
  width: fit-content;
  max-width: 100%;
  position: relative;
  transition: border-color 0.2s ease, background 0.2s ease;
  white-space: normal;
}

.user-bubble:hover {
  border-color: rgba(249, 115, 22, 0.42);
  background: rgba(249, 115, 22, 0.15);
}

.user-content-text {
  display: block;
  white-space: pre-wrap;
  word-break: break-word;
}

.ai-bubble { padding: 2px 0 0; }

.raw-stream {
  white-space: pre-wrap;
  word-wrap: break-word;
  font-family: var(--font-body);
}

.ai-bubble p { margin: 0 0 12px; }
.ai-bubble p:last-child { margin-bottom: 0; }
.ai-bubble h1, .ai-bubble h2, .ai-bubble h3 {
  font-family: var(--font-display);
  font-weight: 600;
  margin: 22px 0 10px;
  line-height: 1.3;
}
.ai-bubble h1 { font-size: 22px; }
.ai-bubble h2 { font-size: 19px; }
.ai-bubble h3 { font-size: 16px; }
.ai-bubble ul, .ai-bubble ol { margin: 0 0 12px; padding-left: 22px; }
.ai-bubble li { margin-bottom: 4px; }

.ai-bubble table {
  border-collapse: collapse;
  width: 100%;
  margin: 14px 0;
  font-size: 13.5px;
  display: block;
  overflow-x: auto;
}
.ai-bubble th, .ai-bubble td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}
.ai-bubble th { background: var(--panel-2); font-family: var(--font-display); font-weight: 600; }

/* In-text inline code */
.ai-bubble code:not(.hljs) {
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: #ffb885;
}

.ai-bubble a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.ai-bubble blockquote {
  border-left: 2px solid var(--accent);
  margin: 12px 0;
  padding-left: 14px;
  color: #c7cad0;
}
.ai-bubble hr { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
.ai-bubble img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  margin: 14px 0;
  display: block;
  cursor: zoom-in;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.ai-bubble img:hover {
  border-color: var(--accent);
}

/* ---------------- Code Blocks with Syntax Highlighting ---------------- */

.code-block-wrapper {
  margin: 14px 0;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #090a0d;
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: #14171c;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
}

.code-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.code-header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.code-lang {
  text-transform: uppercase;
  font-weight: 600;
  color: var(--muted);
}

.code-filename {
  font-weight: 500;
  color: var(--text);
}

.code-size-badge {
  font-size: 10.5px;
  color: var(--muted-2);
  background: rgba(255, 255, 255, 0.05);
  padding: 1px 6px;
  border-radius: 4px;
}

.code-download-btn {
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font-size: 11.5px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.15s ease;
}

.code-download-btn:hover {
  color: var(--accent);
  background: rgba(34, 197, 94, 0.1);
}

.code-download-btn.downloaded {
  color: var(--success);
}

.code-copy-btn {
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font-size: 11.5px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.15s ease;
}

.code-copy-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.code-copy-btn.copied {
  color: var(--success);
}

.code-block-wrapper pre {
  margin: 0 !important;
  padding: 14px 16px !important;
  background: transparent !important;
  border: 0 !important;
  overflow-x: auto;
  font-family: var(--font-mono) !important;
  font-size: 13px !important;
  line-height: 1.5;
}

.code-block-wrapper pre code.hljs {
  padding: 0 !important;
  background: transparent !important;
}

/* ---------------- Interactive Charts ---------------- */

.chart-container {
  margin: 16px 0;
  padding: 16px;
  background: #090a0d;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  position: relative;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-soft);
}

.chart-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.chart-canvas-wrapper {
  position: relative;
  width: 100%;
  height: 320px;
  min-height: 280px;
  max-height: 400px;
}

.chart-canvas-wrapper canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

body.light-theme .chart-container {
  background: #ffffff;
  border-color: var(--border);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06);
}

body.light-theme .chart-header {
  border-bottom-color: var(--border-soft);
}

/* ---------------- Artifact / HTML Live Preview ---------------- */
.artifact-card {
  margin: 16px 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.artifact-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border-soft);
}

.artifact-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.artifact-title svg {
  color: var(--accent);
}

.artifact-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.artifact-toggle-btn,
.artifact-popout-btn {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 11.5px;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.artifact-toggle-btn:hover,
.artifact-popout-btn:hover {
  color: var(--text);
  border-color: var(--accent-dim);
  background: var(--panel-2);
}

.artifact-popout-btn svg {
  color: var(--accent);
}

.artifact-preview-wrap {
  width: 100%;
  background: var(--bg-card, #0f1216);
  padding: 0;
  overflow: hidden;
  min-height: 420px;
  position: relative;
}

.artifact-iframe {
  width: 100%;
  height: 480px;
  min-height: 420px;
  border: none;
  display: block;
  background: var(--bg-card, #0f1216);
}

[data-theme="light"] .artifact-preview-wrap,
[data-theme="light"] .artifact-iframe {
  background: #ffffff;
}

.artifact-code-wrap {
  width: 100%;
  background: #090a0d;
}

/* ---------------- Document Artifact Card (Claude-style .md / File Generator) ---------------- */
.document-card {
  margin: 16px 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  transition: border-color 0.2s ease;
}

.document-card:hover {
  border-color: rgba(34, 197, 94, 0.35);
}

.document-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border-soft);
  gap: 12px;
  flex-wrap: wrap;
}

.document-file-info {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.document-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: rgba(34, 197, 94, 0.12);
  color: var(--accent);
  flex-shrink: 0;
}

.document-titles {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.document-filename {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.document-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--muted-2);
  font-family: var(--font-mono);
}

.document-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.document-btn {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 11.5px;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.document-btn:hover {
  color: var(--text);
  border-color: var(--accent-dim);
  background: var(--panel-2);
}

.document-download-btn {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.35);
  color: var(--accent);
  font-weight: 500;
}

.document-download-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #0d0f12;
}

.document-download-btn.downloaded {
  background: rgba(76, 175, 80, 0.15);
  border-color: rgba(76, 175, 80, 0.4);
  color: var(--success);
}

.document-copy-btn.copied {
  color: var(--success);
}

.document-body {
  padding: 18px 22px;
  background: #090a0d;
  color: #d1d5db;
  font-size: 13.5px;
  line-height: 1.65;
  overflow-x: auto;
  max-height: 520px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(34, 197, 94, 0.35) rgba(255, 255, 255, 0.03);
}

.document-body::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
.document-body::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 4px;
}
.document-body::-webkit-scrollbar-thumb {
  background: rgba(34, 197, 94, 0.35);
  border-radius: 4px;
}
.document-body::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

.document-rendered-view {
  font-family: var(--font-sans);
}

.document-rendered-view h1,
.document-rendered-view h2,
.document-rendered-view h3,
.document-rendered-view h4 {
  color: var(--text);
  margin-top: 18px;
  margin-bottom: 8px;
  font-family: var(--font-display);
}

.document-rendered-view h1 { font-size: 1.35em; border-bottom: 1px solid var(--border-soft); padding-bottom: 6px; }
.document-rendered-view h2 { font-size: 1.2em; }
.document-rendered-view h3 { font-size: 1.05em; }

.document-rendered-view p {
  margin: 10px 0;
}

.document-rendered-view ul,
.document-rendered-view ol {
  padding-left: 20px;
  margin: 8px 0;
}

.document-rendered-view table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
}

.document-rendered-view th,
.document-rendered-view td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
}

.document-rendered-view th {
  background: var(--panel-2);
  color: var(--text);
}

.document-rendered-view pre {
  margin: 12px 0;
  padding: 12px;
  border-radius: 8px;
  background: #14171c;
  overflow-x: auto;
  border: 1px solid var(--border);
}

.document-raw-view {
  display: none;
}

.document-raw-view pre {
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
  border: 0 !important;
  font-family: var(--font-mono) !important;
  font-size: 12.5px !important;
  line-height: 1.55;
  white-space: pre-wrap;
}

/* ---------------- Top Message Document Banner ---------------- */
.message-document-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  margin: -4px -4px 14px -4px;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.28);
  border-radius: 10px;
  gap: 12px;
  flex-wrap: wrap;
}

.message-document-info {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.message-document-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.message-preview-doc-btn {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.4);
  color: var(--accent);
  font-weight: 500;
}

.message-preview-doc-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #0d0f12;
}

.message-download-doc-btn {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.4);
  color: var(--accent);
  font-weight: 500;
}

.message-download-doc-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #0d0f12;
}

.message-download-doc-btn.downloaded {
  background: rgba(76, 175, 80, 0.15);
  border-color: rgba(76, 175, 80, 0.4);
  color: var(--success);
}

/* ---------------- Streaming Cursor ---------------- */
.stream-cursor {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 0.9s steps(1) infinite;
  border-radius: 1px;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------------- Live Tool Activity & Steps ---------------- */

.tool-activity-wrap {
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tool-live-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 20px;
  background: var(--accent-tint);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: var(--accent);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-mono);
  width: fit-content;
  animation: gentle-pulse 2s infinite ease-in-out;
}

@keyframes gentle-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.tool-spinner {
  width: 12px;
  height: 12px;
  border: 2px solid rgba(34, 197, 94, 0.3);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.tool-accordion {
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel);
  overflow: hidden;
  font-size: 12.5px;
}

.tool-accordion-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 12px;
  background: var(--panel-2);
  color: var(--muted);
  cursor: pointer;
  user-select: none;
  font-family: var(--font-mono);
  font-size: 12px;
  transition: background 0.15s ease;
}

.tool-accordion-summary:hover {
  background: #23282f;
  color: var(--text);
}

.tool-accordion-summary svg.chevron {
  transition: transform 0.2s ease;
}

.tool-accordion.open .tool-accordion-summary svg.chevron {
  transform: rotate(180deg);
}

.tool-accordion-details {
  display: none;
  padding: 10px 12px;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--border-soft);
  background: #0d0f12;
}

.tool-accordion.open .tool-accordion-details {
  display: flex;
}

.tool-detail-item {
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tool-detail-name {
  font-weight: 600;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11.5px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tool-detail-args {
  color: var(--muted);
  font-size: 11.5px;
  font-family: var(--font-mono);
  word-break: break-word;
}

.tool-detail-preview {
  color: var(--text);
  font-size: 12px;
  margin-top: 2px;
  padding-top: 4px;
  border-top: 1px dashed var(--border-soft);
  max-height: 80px;
  overflow-y: auto;
}

/* Tool Badges (summary pills) */
.tool-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.tool-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--accent-tint);
  color: var(--accent);
  font-size: 11.5px;
  font-weight: 600;
  font-family: var(--font-mono);
  transition: transform 0.15s ease;
}
.tool-badge svg { width: 11px; height: 11px; }

.tool-badge.doc-badge {
  background: rgba(86, 201, 139, 0.12);
  border-color: rgba(86, 201, 139, 0.35);
  color: #56c98b;
}

.tool-badge.code-badge {
  background: rgba(129, 140, 248, 0.12);
  border-color: rgba(129, 140, 248, 0.35);
  color: #a5b4fc;
}

.tool-badge.chart-badge {
  background: rgba(56, 189, 248, 0.12);
  border-color: rgba(56, 189, 248, 0.35);
  color: #38bdf8;
}

.tool-badge.python-badge {
  background: rgba(245, 158, 11, 0.14);
  border-color: rgba(245, 158, 11, 0.35);
  color: #fbbf24;
}

/* ---------------- Actions row ---------------- */
.msg-actions {
  display: flex;
  gap: 4px;
  margin-top: 10px;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.message-row:hover .msg-actions,
.message-row.actions-visible .msg-actions { opacity: 1; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  border-radius: 7px;
  padding: 5px 8px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.15s ease;
}
.icon-btn:hover { color: var(--text); background: var(--panel-2); border-color: var(--border); }
.icon-btn.copied { color: var(--success); }
.icon-btn svg { width: 13px; height: 13px; }

.error-bubble {
  border: 1px solid rgba(224, 104, 92, 0.35);
  background: rgba(224, 104, 92, 0.08);
  color: #f0a89f;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 14px;
}

/* ---------------- Empty state & Claude-Style Layout ---------------- */
.empty-state {
  width: min(720px, 100%);
  margin: 0 auto;
  text-align: center;
}

.empty-logo {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.18) 0%, rgba(34, 197, 94, 0.04) 75%);
  border: 1px solid rgba(34, 197, 94, 0.28);
  box-shadow: 0 10px 30px rgba(34, 197, 94, 0.14);
}

.empty-greeting-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 4vw, 32px);
  margin: 0 0 8px;
  letter-spacing: -0.015em;
  color: var(--text);
}

.empty-greeting-subtitle {
  color: var(--muted);
  margin: 0 auto 20px;
  max-width: 520px;
  font-size: 14.5px;
  line-height: 1.5;
}

/* Claude Empty State Container Centering */
.app-shell.is-empty-chat {
  overflow-y: auto;
}

.app-shell.is-empty-chat .chat-area {
  flex: 0 0 auto;
  min-height: auto;
  overflow: visible;
  padding: 40px 20px 0;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
}

.app-shell.is-empty-chat .composer-wrap {
  position: static;
  margin-bottom: auto;
  padding: 16px 20px 36px;
  background: transparent;
  width: 100%;
}



/* ---------------- Composer ---------------- */
.composer-wrap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 18px 18px;
  background: linear-gradient(transparent, rgba(13, 15, 18, 0.98) 32%);
  z-index: 20;
}

.attachment-preview {
  width: min(820px, 100%);
  margin: 0 auto 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: rise 0.2s ease;
}

.attachment-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 12.5px;
  color: var(--text);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

.attachment-icon {
  font-size: 14px;
}

.attachment-name {
  font-weight: 500;
  max-width: 240px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.attachment-size {
  color: var(--muted);
  font-size: 11.5px;
  font-family: var(--font-mono);
}

.attachment-remove-btn {
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  padding: 2px 5px;
  border-radius: 4px;
  font-size: 11px;
  line-height: 1;
  transition: color 0.15s, background 0.15s;
}

.attachment-remove-btn:hover {
  color: var(--danger);
  background: rgba(224, 104, 92, 0.15);
}

.composer {
  width: min(820px, 100%);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  padding: 12px 14px 10px;
  border: 1px solid #2d333a;
  border-radius: 18px;
  background: var(--panel);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.4);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.composer:focus-within {
  border-color: var(--accent-dim);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(34, 197, 94, 0.2);
}

/* Modern Pill Composer (Qwen / ChatGPT Style) */
.modern-pill-composer {
  width: min(840px, 100%);
  margin: 0 auto;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 9999px;
  background: var(--panel, #14171d);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

[data-theme="light"] .modern-pill-composer {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
}

.modern-pill-composer:focus-within {
  border-color: rgba(34, 197, 94, 0.5);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(34, 197, 94, 0.25);
}

[data-theme="light"] .modern-pill-composer:focus-within {
  border-color: #22c55e;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(34, 197, 94, 0.3);
}

.composer-pill-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.composer-left-actions {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.modern-pill-composer .attach-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.18s ease;
}

.modern-pill-composer .attach-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: scale(1.05);
}

.modern-pill-composer .composer-input-row {
  flex: 1;
  display: flex;
  align-items: center;
  min-width: 0;
}

.modern-pill-composer .composer-input-row textarea {
  width: 100%;
  flex: 1;
  resize: none;
  overflow-y: auto;
  scrollbar-width: none;
  max-height: 180px;
  min-height: 24px;
  height: 24px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  padding: 2px 4px;
  font-size: 15px;
  line-height: 1.45;
}

.modern-pill-composer .composer-right-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.modern-pill-composer .send-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  padding: 0;
}

.modern-pill-composer .mic-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 0;
  background: transparent;
  color: var(--muted);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.modern-pill-composer .mic-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.composer-input-row {
  width: 100%;
  display: flex;
  align-items: flex-start;
}

.composer-input-row textarea {
  width: 100%;
  flex: 1;
  resize: none;
  overflow-y: auto;
  scrollbar-width: none;
  max-height: 220px;
  min-height: 46px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  padding: 4px 2px 8px;
  font-size: 15px;
  line-height: 1.5;
}

.composer-input-row textarea::-webkit-scrollbar { display: none; }
.composer-input-row textarea::placeholder { color: var(--muted-2); }

.composer-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-top: 4px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

[data-theme="light"] .composer-toolbar {
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.composer-toolbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.composer-toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.composer-menu-anchor {
  position: relative;
  display: inline-flex;
}

.attach-btn {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel-2);
  color: var(--muted);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.attach-btn:hover {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: var(--accent-tint);
  transform: translateY(-1px);
}

.attach-btn svg {
  display: block;
}

.presets-btn {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel-2);
  color: var(--muted);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.presets-btn:hover {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: var(--accent-tint);
  transform: translateY(-1px);
}

.presets-btn svg {
  display: block;
}

/* Floating Dropdown Menus for Composer (+ attach & Presets) - Opens Downwards */
.composer-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  bottom: auto;
  left: 0;
  background: #181b20;
  border: 1px solid #2d333a;
  border-radius: 14px;
  padding: 6px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 100;
  animation: rise 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  backdrop-filter: blur(16px);
}

.composer-dropdown-menu.open-upwards {
  top: auto !important;
  bottom: calc(100% + 8px) !important;
}

.attach-dropdown {
  width: 270px;
}

.presets-dropdown {
  width: 330px;
  max-height: 400px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #262b31 transparent;
}

.presets-dropdown::-webkit-scrollbar {
  width: 6px;
}
.presets-dropdown::-webkit-scrollbar-thumb {
  background: #262b31;
  border-radius: 6px;
}

.composer-menu-header {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  padding: 6px 10px 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  margin-bottom: 4px;
}

.composer-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border-radius: 10px;
  background: transparent;
  border: 0;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: all 0.12s ease;
}

.composer-menu-item:hover {
  background: var(--panel-2);
  color: var(--text);
  transform: translateX(2px);
}

.composer-menu-item .menu-item-icon {
  font-size: 18px;
  flex: 0 0 24px;
  text-align: center;
  display: grid;
  place-items: center;
}

.composer-menu-item .menu-item-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.composer-menu-item .menu-item-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.composer-menu-item .menu-item-desc {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.3;
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Voice Input Microphone Button */
.mic-btn {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel-2);
  color: var(--muted);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.mic-btn:hover {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: var(--accent-tint);
  transform: translateY(-1px);
}

.mic-btn.recording {
  color: #fff !important;
  background: #e0685c !important;
  border-color: #e0685c !important;
  animation: mic-pulse 1.2s infinite alternate ease-in-out;
}

@keyframes mic-pulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(224, 104, 92, 0.6); }
  100% { transform: scale(1.08); box-shadow: 0 0 12px 3px rgba(224, 104, 92, 0.8); }
}

.send-btn {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border: 0;
  border-radius: 9px;
  background: var(--accent);
  color: #ffffff;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 8px rgba(34, 197, 94, 0.35);
}

.send-btn:hover:not(:disabled) {
  background: #ff9a54;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.45);
}

.send-btn:active:not(:disabled) { transform: scale(0.95); }
.send-btn:disabled { opacity: 0.35; cursor: not-allowed; box-shadow: none; }

/* Subbar: Model Selector (Directly below the message box) */
.composer-subbar {
  width: min(840px, 100%);
  margin: 8px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 4px;
}

/* Mode Selector (Auto / Fast / Thinking) */
.mode-picker-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.mode-dropdown-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  border: 1px solid transparent;
  padding: 4px 8px;
  height: 28px;
  border-radius: 8px;
  background: transparent;
  outline: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.mode-dropdown-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
}

.mode-chevron {
  opacity: 0.6;
  transition: transform 0.2s ease;
}

.mode-picker-wrap.is-open .mode-chevron {
  transform: rotate(180deg);
}

.mode-dropdown-menu {
  position: absolute;
  bottom: calc(100% + 6px);
  right: 0;
  min-width: 250px;
  background: #14171c;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 5px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
  z-index: 120;
  display: flex;
  flex-direction: column;
  gap: 3px;
  animation: fadeIn 0.15s ease-out;
}

[data-theme="light"] .mode-dropdown-menu {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.15);
}

.mode-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: all 0.15s ease;
}

.mode-option:hover {
  background: rgba(255, 255, 255, 0.06);
}

[data-theme="light"] .mode-option:hover {
  background: rgba(0, 0, 0, 0.05);
}

.mode-option.active {
  background: rgba(34, 197, 94, 0.12);
  color: #22c55e;
}

.mode-option-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mode-option-icon {
  font-size: 14px;
}

.mode-option-texts {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.mode-option-title {
  font-size: 13px;
  font-weight: 600;
  line-height: 1.2;
}

.mode-option-desc {
  font-size: 10.5px;
  color: var(--muted);
  line-height: 1.2;
}

.mode-option-check {
  font-size: 13px;
  font-weight: bold;
  color: #22c55e;
  margin-left: 8px;
}

[data-theme="light"] .mode-dropdown-btn {
  color: #64748b !important;
}

[data-theme="light"] .mode-dropdown-btn:hover {
  color: #111418 !important;
  background: rgba(0, 0, 0, 0.04) !important;
}

.composer-subbar .model-picker-wrap {
  display: inline-flex;
  align-items: center;
}

.composer-subbar .model-select {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  border: 1px solid transparent;
  padding: 4px 8px;
  height: 28px;
  border-radius: 8px;
  background: transparent;
  outline: none;
  cursor: pointer;
  transition: all 0.15s ease;
  max-width: 250px;
}

.composer-subbar .model-select:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
}

.composer-subbar .model-select:focus {
  color: var(--text);
  border-color: var(--accent-dim);
}

[data-theme="light"] .composer-subbar .model-select {
  color: #64748b !important;
}

[data-theme="light"] .composer-subbar .model-select:hover {
  color: #111418 !important;
  background: rgba(0, 0, 0, 0.04) !important;
}

/* Stop Generation Mode */
.send-btn.is-generating {
  background: #e0685c !important;
  color: #fff !important;
  cursor: pointer !important;
  opacity: 1 !important;
  animation: stop-pulse 1.4s infinite alternate ease-in-out;
}
@keyframes stop-pulse {
  0% { box-shadow: 0 0 0 0 rgba(224, 104, 92, 0.4); }
  100% { box-shadow: 0 0 16px 4px rgba(224, 104, 92, 0.8); }
}
.send-btn.is-generating .icon-send { display: none !important; }
.send-btn.is-generating .icon-stop { display: block !important; }

.hint {
  width: min(820px, 100%);
  margin: 9px auto 0;
  color: var(--muted-2);
  text-align: center;
  font-size: 11px;
}

/* ---------------- Claude-Style Artifact Split Panel ---------------- */
.artifact-split-panel {
  width: 48%;
  max-width: 48%;
  flex: 0 0 48%;
  height: 100%;
  border-left: 1px solid var(--border);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  z-index: 30;
  transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1), flex-basis 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.artifact-panel-header {
  height: 56px;
  padding: 0 16px;
  border-bottom: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--panel);
  gap: 12px;
  flex-shrink: 0;
}

.artifact-panel-info {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
}

.artifact-panel-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.artifact-panel-titles {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.artifact-panel-title {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: var(--font-mono);
}

.artifact-panel-subtitle {
  font-size: 11px;
  color: var(--muted-2);
}

.artifact-panel-tabs {
  display: flex;
  align-items: center;
  background: var(--bg);
  padding: 3px;
  border-radius: 8px;
  border: 1px solid var(--border);
  gap: 2px;
}

.artifact-tab {
  background: transparent;
  border: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.artifact-tab:hover {
  color: var(--text);
}
.artifact-tab.active {
  background: var(--panel-2);
  color: var(--accent);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.artifact-panel-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.artifact-action-btn {
  background: transparent;
  border: 0;
  color: var(--muted);
  width: 30px;
  height: 30px;
  border-radius: 6px;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.15s ease;
}
.artifact-action-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}
.artifact-action-btn.copied {
  color: #10b981 !important;
}
.artifact-action-btn.close-btn:hover {
  color: var(--danger);
  background: rgba(224, 104, 92, 0.15);
}

.artifact-panel-body {
  flex: 1;
  position: relative;
  background: #000;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.artifact-iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--bg-surface, #0d0f12);
}

[data-theme="light"] .artifact-iframe {
  background: #ffffff;
}

.artifact-code-wrap {
  flex: 1;
  overflow: auto;
  padding: 16px;
  background: #0d0f12;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
}
.artifact-code-wrap pre {
  margin: 0;
}
.artifact-code-wrap code {
  font-family: inherit;
}

@media (max-width: 900px) {
  .artifact-split-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100% !important;
    max-width: 100% !important;
    flex: 1 1 100% !important;
    z-index: 50;
  }
}

/* ---------------- DeepSeek R1 Style Thought Process Accordion ---------------- */
.thought-box {
  margin-bottom: 12px;
  border: 1px solid rgba(34, 197, 94, 0.2);
  background: rgba(34, 197, 94, 0.03);
  border-radius: 10px;
  overflow: hidden;
  transition: all 0.2s ease;
}

.thought-box.open {
  border-color: rgba(34, 197, 94, 0.35);
}

.thought-header {
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  background: rgba(255, 255, 255, 0.02);
  transition: background 0.15s ease;
}
.thought-header:hover {
  background: rgba(255, 255, 255, 0.05);
}

.thought-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
}

.thought-icon {
  font-size: 14px;
}

.thought-label {
  color: var(--text);
  font-weight: 600;
}

.thought-timer-badge {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--accent);
  background: var(--accent-tint);
  padding: 1px 7px;
  border-radius: 10px;
}

.thought-toggle-icon {
  font-size: 10px;
  color: var(--muted-2);
  transition: transform 0.2s ease;
}
.thought-box.open .thought-toggle-icon {
  transform: rotate(180deg);
}

.thought-content {
  display: none;
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-family: var(--font-mono);
  max-height: 240px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.thought-box.open .thought-content {
  display: block;
}

/* User Message Action Buttons (ChatGPT & Claude Style: Underneath the prompt on hover) */
.user-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  margin-top: 5px;
  padding: 0 2px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}

.message-row.user:hover .user-actions,
.message-row.user:focus-within .user-actions {
  opacity: 1;
  pointer-events: auto;
}

.user-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: transparent;
  border: none;
  color: var(--muted-2, #a0aec0);
  cursor: pointer;
  transition: all 0.15s ease;
  padding: 0;
}

.user-action-btn:hover {
  color: var(--text, #fff);
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.08);
}

.user-action-btn.copied {
  color: #22c55e !important;
}

.user-action-btn svg {
  width: 14px;
  height: 14px;
}

/* Code Block Live Preview Buttons */
.code-preview-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--accent, #f97316);
  background: rgba(249, 115, 22, 0.1);
  border: 1px solid rgba(249, 115, 22, 0.35);
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.code-preview-btn:hover {
  background: var(--accent, #f97316);
  color: #0d0f12;
}
.code-preview-btn svg {
  width: 12px;
  height: 12px;
}

.artifact-open-split-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 9px;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--accent, #f97316);
  background: rgba(249, 115, 22, 0.1);
  border: 1px solid rgba(249, 115, 22, 0.35);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.artifact-open-split-btn:hover {
  background: var(--accent, #f97316);
  color: #0d0f12;
}

/* ---------------- Mobile Overlay & Responsive ---------------- */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(3px);
  z-index: 35;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.mobile-only {
  display: none;
}

@media (max-width: 768px) {
  .mobile-only { display: grid; }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    transform: translateX(-100%);
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
  }

  .layout-container.sidebar-collapsed .sidebar {
    width: 260px !important;
    flex: 0 0 260px !important;
    min-width: 260px !important;
    max-width: 260px !important;
    transform: translateX(-100%) !important;
    border-right: none !important;
  }

  .sidebar-rail {
    display: none !important;
  }

  .sidebar.collapsed {
    margin-left: 0;
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .sidebar-overlay {
    display: block;
    pointer-events: none;
  }

  .sidebar-overlay.active {
    opacity: 1;
    pointer-events: auto;
  }

  .chat-title-header { max-width: 180px; }
  .topbar { padding: 0 14px; }
  .chat-area { padding-left: 12px; padding-right: 12px; }
  .prompt-grid { grid-template-columns: 1fr; }
  .message-row { gap: 8px; }
  .composer-wrap { padding: 10px 10px 14px; }
}

/* ==========================================================================
   LANDING PAGE, AUTH MODAL & MULTI-USER WORKSPACE (PRO PRODUCTION GRADE)
   ========================================================================== */

.landing-view {
  width: 100vw;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
  background: #080a0d;
  color: #ecedef;
  color-scheme: dark;
  scroll-behavior: smooth;
  position: relative;
}

/* Landing Navigation */
.landing-nav {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(8, 10, 13, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.landing-nav-inner {
  max-width: 1240px;
  margin: 0 auto;
  height: 70px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
}

.landing-nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.landing-nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s ease;
}

.landing-nav-links a:hover {
  color: #ffffff;
}

.landing-nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #56c98b;
  background: rgba(86, 201, 139, 0.08);
  border: 1px solid rgba(86, 201, 139, 0.22);
  padding: 4px 10px;
  border-radius: 100px;
}

.status-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #56c98b;
  box-shadow: 0 0 8px #56c98b;
  animation: pulseDot 2s infinite ease-in-out;
}

.btn-ghost-nav {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  font-size: 13.5px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-ghost-nav:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn-accent-nav {
  background: #22c55e;
  border: none;
  color: #06190e;
  font-size: 13.5px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 2px 14px rgba(34, 197, 94, 0.25);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn-accent-nav:hover {
  transform: translateY(-1px);
  background: #16a34a;
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.4);
}

/* ==========================================================================
   1. HERO SECTION
   ========================================================================== */

.landing-hero {
  max-width: 1140px;
  margin: 0 auto;
  padding: 95px 24px 70px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.hero-stars-backdrop {
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 450px;
  background: radial-gradient(ellipse at 50% 25%, rgba(34, 197, 94, 0.12) 0%, rgba(34, 197, 94, 0.05) 45%, transparent 75%);
  pointer-events: none;
  z-index: 0;
}

.hero-badge {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #94a3b8;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.badge-pulse {
  width: 7px;
  height: 7px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 10px #22c55e;
  animation: pulseDot 2s infinite ease-in-out;
}

.hero-serif-title {
  position: relative;
  z-index: 1;
  font-family: var(--font-serif);
  font-size: clamp(48px, 6.2vw, 76px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 960px;
  margin: 0 0 24px;
  color: #f3f4f6;
}

.highlight-serif {
  font-family: var(--font-serif);
  color: #4ade80;
  font-style: italic;
  padding: 0 4px;
}

.hero-subtitle {
  position: relative;
  z-index: 1;
  font-size: 18px;
  line-height: 1.62;
  color: #94a3b8;
  max-width: 720px;
  margin: 0 0 34px;
}

/* Pill Tabs */
.hero-pill-tabs {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  padding: 5px;
  margin-bottom: 34px;
}

.pill-tab {
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.pill-tab:hover {
  color: var(--text);
}

.pill-tab.active {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font-weight: 600;
}

/* Hero Action Box */
.hero-action-box {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 36px;
}

.hero-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #22c55e;
  border: none;
  color: #051a0e;
  font-size: 16px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 6px 28px rgba(34, 197, 94, 0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.hero-cta-btn:hover {
  transform: translateY(-2px);
  background: #16a34a;
  box-shadow: 0 8px 36px rgba(34, 197, 94, 0.5);
}

.cta-arrow-badge {
  background: rgba(5, 26, 14, 0.22);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  text-transform: uppercase;
}

.hero-subtext {
  font-size: 13px;
  color: #64748b;
}

/* Developer Counter */
.hero-counter-wrap {
  position: relative;
  z-index: 1;
  font-size: 19px;
  color: #94a3b8;
  margin-bottom: 40px;
  letter-spacing: -0.01em;
}

.counter-number {
  color: #ffffff;
  font-weight: 700;
}

/* Comparison Matrix Card (Screenshot 1) */
.hero-comparison-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 840px;
  background: #0f1217;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.65);
  text-align: left;
}

.comparison-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: all 0.2s ease;
}

.comparison-row.highlight-cortex {
  background: rgba(34, 197, 94, 0.06);
  border-color: rgba(34, 197, 94, 0.28);
  box-shadow: 0 0 25px rgba(34, 197, 94, 0.08);
}

.comp-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 260px;
}

.comp-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: 16px;
  flex-shrink: 0;
}

.cortex-icon {
  background: #111417;
  border: 1px solid rgba(34, 197, 94, 0.4);
}

.competitor-icon {
  background: #161a20;
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: #94a3b8;
}

.comp-info strong {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
  color: #f3f4f6;
}

.comp-info span {
  display: block;
  font-size: 12px;
  color: #64748b;
  margin-top: 1px;
}

.comp-bar-track {
  flex: 1;
  height: 10px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 100px;
  overflow: hidden;
  position: relative;
}

.comp-bar-fill {
  height: 100%;
  border-radius: 100px;
}

.cortex-fill {
  width: 100%;
  background: linear-gradient(90deg, #22c55e, #4ade80);
  box-shadow: 0 0 12px rgba(74, 222, 128, 0.5);
}

.competitor-fill {
  background: linear-gradient(90deg, rgba(239, 68, 68, 0.4), rgba(239, 68, 68, 0.7));
}

.comp-price {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  min-width: 75px;
  text-align: right;
}

.comp-price small {
  font-size: 11px;
  color: #64748b;
  font-weight: 400;
}

.green-text { color: #4ade80; }
.red-text { color: #f87171; }

/* ==========================================================================
   2. SHOWCASE SECTION (Screenshot 2)
   ========================================================================== */

.landing-showcase-section {
  max-width: 1240px;
  margin: 0 auto;
  padding: 120px 28px 100px;
}

.showcase-container {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 60px;
  align-items: center;
}

.showcase-left {
  text-align: left;
}

.showcase-tag-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.showcase-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: #4ade80;
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.25);
  padding: 4px 10px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.showcase-subtag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: #94a3b8;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 4px 10px;
  border-radius: 6px;
  letter-spacing: 0.06em;
}

.showcase-title {
  font-family: var(--font-serif);
  font-size: clamp(38px, 4.5vw, 54px);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  color: #ffffff;
}

.highlight-serif {
  font-style: italic;
  color: #4ade80;
  text-shadow: 0 0 30px rgba(74, 222, 128, 0.25);
}

.showcase-desc {
  font-size: 16.5px;
  line-height: 1.65;
  color: #94a3b8;
  margin: 0 0 32px;
}

.replaces-block {
  margin-bottom: 30px;
}

.replaces-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #64748b;
  margin-bottom: 12px;
}

.replaces-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.replace-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 500;
  color: #e2e8f0;
}

.rep-icon {
  font-size: 13px;
  color: #94a3b8;
}

/* Feature Metric Highlights */
.showcase-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 32px;
}

.showcase-stat-item {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.showcase-stat-val {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: #4ade80;
  letter-spacing: -0.02em;
}

.showcase-stat-label {
  font-size: 11.5px;
  color: #94a3b8;
  font-weight: 500;
}

.showcase-cta-group {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.showcase-cta {
  padding: 13px 26px;
}

.showcase-demo-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #4ade80;
  font-size: 14px;
  font-weight: 600;
  padding: 13px 22px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.1);
}

.showcase-demo-btn:hover {
  background: rgba(34, 197, 94, 0.16);
  border-color: #22c55e;
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(34, 197, 94, 0.25);
  color: #ffffff;
}

/* ==========================================================================
   INTERACTIVE CLAUDE CODE AGENT TERMINAL SIMULATOR
   ========================================================================== */

.terminal-sim-window {
  background: #0b0e14;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.8), 0 0 50px rgba(34, 197, 94, 0.08);
  text-align: left;
  display: flex;
  flex-direction: column;
  position: relative;
}

.terminal-sim-topbar {
  height: 44px;
  background: #11151c;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  user-select: none;
}

.terminal-sim-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.terminal-sim-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.terminal-sim-badge {
  color: #4ade80;
  background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.2);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.terminal-sim-branch {
  color: #64748b;
}

.terminal-sim-status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #4ade80;
  font-weight: 600;
}

.status-live-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  animation: livePulse 2s ease-in-out infinite;
}

@keyframes livePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Terminal Interactive Tabs */
.terminal-sim-tabs {
  display: flex;
  background: #0d1016;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  padding: 0 10px;
  gap: 4px;
  overflow-x: auto;
}

.sim-tab {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: #8a94a6;
  font-size: 12.5px;
  font-weight: 600;
  padding: 10px 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.sim-tab:hover {
  color: #f1f5f9;
  background: rgba(255, 255, 255, 0.03);
}

.sim-tab.active {
  color: #4ade80;
  border-bottom-color: #22c55e;
  background: rgba(34, 197, 94, 0.06);
}

/* Quick Prompt Presets Bar */
.terminal-sim-presets {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: #090c10;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  overflow-x: auto;
}

.presets-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.sim-preset-chip {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  padding: 4px 11px;
  color: #cbd5e1;
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.sim-preset-chip:hover {
  border-color: rgba(74, 222, 128, 0.35);
  color: #ffffff;
  background: rgba(74, 222, 128, 0.06);
}

.sim-preset-chip.active {
  background: rgba(34, 197, 94, 0.12);
  border-color: #22c55e;
  color: #4ade80;
  font-weight: 600;
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.15);
}

/* Tab 1: Terminal Content Pane */
.terminal-sim-body {
  padding: 18px;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.terminal-sim-cmd-line {
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 9px;
  padding: 9px 13px;
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12.5px;
}

.sim-prompt-symbol {
  color: #22c55e;
  font-weight: 700;
  user-select: none;
}

.sim-typed-text {
  color: #f1f5f9;
  flex: 1;
  word-break: break-word;
}

.sim-cursor {
  display: inline-block;
  width: 7px;
  height: 15px;
  background: #22c55e;
  animation: cursorBlink 1s infinite;
  vertical-align: middle;
}

@keyframes cursorBlink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

/* Live Tool Execution Steps */
.terminal-sim-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.sim-step-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  padding: 11px 14px;
  transition: all 0.2s ease;
}

.sim-step-item.thought {
  border-left: 3px solid #f59e0b;
  background: rgba(245, 158, 11, 0.03);
}

.sim-step-item.tool {
  border-left: 3px solid #38bdf8;
  background: rgba(56, 189, 248, 0.03);
}

.sim-step-item.artifact {
  border-left: 3px solid #a855f7;
  background: rgba(168, 85, 247, 0.03);
}

.sim-step-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.sim-step-icon {
  font-size: 13px;
  flex-shrink: 0;
}

.sim-step-title {
  font-weight: 600;
  color: #cbd5e1;
  flex: 1;
  word-break: break-all;
}

.sim-step-time {
  margin-left: auto;
  color: #64748b;
  font-size: 11px;
}

.sim-step-badge {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
}

.sim-step-badge.done {
  color: #4ade80;
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.25);
}

.sim-step-badge.saved {
  color: #c084fc;
  background: rgba(192, 132, 252, 0.1);
  border: 1px solid rgba(192, 132, 252, 0.25);
}

.sim-step-detail {
  font-size: 12px;
  color: #94a3b8;
  line-height: 1.55;
  margin-top: 6px;
}

.sim-step-detail.mono {
  font-family: var(--font-mono);
  background: rgba(0, 0, 0, 0.35);
  border-radius: 6px;
  padding: 6px 10px;
  color: #a5b4fc;
  white-space: pre-line;
  font-size: 11px;
}

/* Terminal Bottom Interactive Input Bar */
.terminal-sim-input-bar {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #080b0f;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 6px 12px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
}

.sim-input-icon {
  color: #22c55e;
  font-weight: 700;
  font-size: 14px;
}

#simCustomInput {
  flex: 1;
  background: transparent;
  border: none;
  color: #f1f5f9;
  font-family: var(--font-mono);
  font-size: 12px;
  outline: none;
}

#simCustomInput::placeholder {
  color: #475569;
}

.sim-run-btn {
  background: #22c55e;
  border: none;
  color: #0d0f12;
  font-weight: 700;
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.sim-run-btn:hover {
  background: #4ade80;
  transform: translateY(-1px);
  box-shadow: 0 2px 10px rgba(34, 197, 94, 0.4);
}

/* Tab 2: Live Sandbox Content Pane */
.sim-sandbox-preview {
  background: #090c10;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sim-sandbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 10px;
}

.sim-sandbox-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #f1f5f9;
  font-weight: 600;
}

.sim-sandbox-pill {
  font-family: var(--font-mono);
  font-size: 10px;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 2px 7px;
  border-radius: 4px;
}

.tab-soon-badge {
  font-size: 9px;
  font-family: var(--font-mono, monospace);
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.3);
  margin-left: 5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sim-sandbox-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  margin: 10px 0 12px;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: 8px;
  font-size: 11.5px;
  color: var(--text, #f1f5f9);
  line-height: 1.45;
}

[data-theme="light"] .sim-sandbox-banner {
  background: #f0fdf4;
  border-color: #86efac;
  color: #166534;
}

.sandbox-pulse-badge {
  font-family: var(--font-mono, monospace);
  font-size: 9.5px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: #22c55e;
  color: #090c10;
  flex-shrink: 0;
  letter-spacing: 0.04em;
}

.sim-code-preview {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: #cbd5e1;
  background: #0d1016;
  border-radius: 8px;
  padding: 12px;
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.sim-sandbox-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 10px;
}

.sim-bench-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #94a3b8;
  background: rgba(255, 255, 255, 0.04);
  padding: 3px 8px;
  border-radius: 5px;
}

.sim-bench-pill.success {
  color: #4ade80;
  background: rgba(74, 222, 128, 0.08);
}

/* Tab 3: Artifact Card */
.sim-artifact-card {
  background: #0d1015;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 16px;
}

.sim-doc-body {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: #cbd5e1;
  font-size: 13px;
  line-height: 1.65;
}

.sim-doc-body h3 {
  color: #ffffff;
  font-size: 15px;
  margin: 0 0 8px;
}

.sim-doc-body ul {
  padding-left: 20px;
  margin: 8px 0 0;
}

.sim-doc-body li {
  margin-bottom: 6px;
}

/* Tab 4: KaTeX Math Pane */
.sim-math-preview {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sim-math-box {
  background: #090c10;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}

.sim-math-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #64748b;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.sim-math-formula {
  font-size: 16px;
  color: #4ade80;
  font-family: var(--font-mono);
}

.sim-math-caption {
  font-size: 12px;
  color: #94a3b8;
  margin: 0;
  text-align: center;
}

/* ==========================================================================
   3. CAPABILITIES BENTO GRID & LANDING SECTIONS
   ========================================================================== */

.landing-section {
  max-width: 1240px;
  margin: 0 auto;
  padding: 120px 28px;
  text-align: center;
}

.section-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #4ade80;
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  color: #ffffff;
}

.text-left { text-align: left; }

.section-subtitle {
  font-size: 17px;
  color: #94a3b8;
  max-width: 680px;
  margin: 0 auto 56px;
  line-height: 1.6;
}

/* Bento Grid */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  text-align: left;
}

.bento-card {
  background: #0f1217;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 16px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.bento-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45);
}

.bento-hero-card {
  grid-column: span 2;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.06), #0f1217 65%);
  border-color: rgba(34, 197, 94, 0.22);
}

.bento-icon {
  font-size: 32px;
  margin-bottom: 18px;
}

.bento-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: #ffffff;
  margin: 0 0 12px;
}

.bento-card p {
  font-size: 14px;
  line-height: 1.62;
  color: #94a3b8;
  margin: 0;
  flex: 1;
}

.bento-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.bento-tag-list span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #4ade80;
  background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.2);
  padding: 3px 10px;
  border-radius: 100px;
}

/* ==========================================================================
   4. SAVINGS CALCULATOR (Screenshot 3)
   ========================================================================== */

.savings-section {
  padding: 120px 28px;
}

.savings-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: stretch;
  max-width: 1120px;
  margin: 0 auto;
}

.savings-card {
  background: #0d1015;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 34px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  text-align: left;
}

.savings-pills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.tool-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.09);
  color: #94a3b8;
  font-size: 13.5px;
  font-weight: 500;
  padding: 8px 15px;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.tool-pill:hover {
  border-color: rgba(255, 255, 255, 0.22);
  color: #f1f5f9;
}

.tool-pill.active {
  background: rgba(34, 197, 94, 0.08);
  border-color: #22c55e;
  color: #ffffff;
  box-shadow: 0 0 14px rgba(34, 197, 94, 0.15);
}

.pill-icon {
  font-size: 13px;
  opacity: 0.8;
}

.tool-pill.active .pill-icon {
  color: #4ade80;
  opacity: 1;
}

/* Slider */
.savings-slider-wrap {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 22px;
}

.slider-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.slider-label {
  font-size: 14px;
  color: #94a3b8;
  font-weight: 500;
}

.slider-val {
  font-family: var(--font-mono);
  font-size: 14px;
  color: #ffffff;
  font-weight: 600;
}

.custom-green-slider {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 100px;
  outline: none;
}

.custom-green-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #22c55e;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.6);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.custom-green-slider::-webkit-slider-thumb:hover {
  transform: scale(1.18);
  box-shadow: 0 0 16px rgba(34, 197, 94, 0.9);
}

.custom-green-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #22c55e;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.6);
  border: none;
}

/* Result Card */
.savings-result-card {
  align-items: center;
  text-align: center;
  justify-content: center;
  background: linear-gradient(180deg, #10141b 0%, #0c0f14 100%);
  border-color: rgba(34, 197, 94, 0.22);
  box-shadow: 0 0 40px rgba(34, 197, 94, 0.08);
}

.savings-meta-top {
  font-size: 14.5px;
  color: #94a3b8;
  margin-bottom: 8px;
}

.savings-huge-number {
  font-family: var(--font-serif);
  font-size: clamp(52px, 5.5vw, 76px);
  line-height: 1.05;
  color: #4ade80;
  letter-spacing: -0.02em;
  text-shadow: 0 0 35px rgba(74, 222, 128, 0.3);
  margin-bottom: 6px;
  font-feature-settings: "tnum";
}

.savings-meta-sub {
  font-size: 15px;
  color: #64748b;
  margin-bottom: 24px;
}

.savings-zero-tag {
  font-size: 14.5px;
  color: #cbd5e1;
  margin-bottom: 24px;
  font-weight: 500;
}

.savings-cta-btn {
  width: 100%;
  justify-content: center;
  padding: 14px 24px;
  margin-bottom: 20px;
}

.savings-breakdown {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: #64748b;
}

@media (max-width: 900px) {
  .savings-container {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   5. INTERACTIVE FRONTIER MODELS FLEET SHOWCASE
   ========================================================================== */

.models-fleet-section {
  position: relative;
}

.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  text-align: left;
  margin-bottom: 26px;
}

.model-card {
  background: #0f1217;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  position: relative;
  user-select: none;
}

.model-card:hover {
  transform: translateY(-4px);
  border-color: rgba(74, 222, 128, 0.35);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
}

.model-card.active-model {
  border-color: #22c55e;
  background: linear-gradient(180deg, rgba(34, 197, 94, 0.09) 0%, #0e1218 100%);
  box-shadow: 0 0 30px rgba(34, 197, 94, 0.16), 0 14px 34px rgba(0, 0, 0, 0.55);
}

.model-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 8px;
}

.model-tier {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  color: #64748b;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.model-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.model-badge.super {
  color: #4ade80;
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.25);
}

.model-badge.ultra {
  color: #fbbf24;
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.25);
}

.model-badge.deep {
  color: #c084fc;
  background: rgba(192, 132, 252, 0.1);
  border: 1px solid rgba(192, 132, 252, 0.25);
}

.model-badge.omni {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.model-badge.fast {
  color: #f43f5e;
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.25);
}

.model-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 8px;
}

.model-card p {
  font-size: 13px;
  color: #94a3b8;
  line-height: 1.55;
  margin: 0 0 20px;
  flex: 1;
}

.model-card-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #cbd5e1;
}

.model-card-metrics span {
  background: rgba(255, 255, 255, 0.03);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* Dynamic Live Model Telemetry Inspector Card */
.model-inspector-card {
  background: #090c10;
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: 16px;
  padding: 22px 28px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(34, 197, 94, 0.08);
  text-align: left;
  transition: all 0.25s ease;
}

.inspector-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 14px;
  flex-wrap: wrap;
  gap: 12px;
}

.inspector-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.inspector-pulse {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 10px #22c55e;
  animation: livePulse 2s infinite;
}

#inspectorModelName {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
}

.inspector-status-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: #4ade80;
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.25);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.04em;
}

.inspector-try-btn {
  background: #22c55e;
  border: none;
  color: #0d0f12;
  font-weight: 700;
  font-size: 13px;
  padding: 8px 18px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 10px rgba(34, 197, 94, 0.3);
}

.inspector-try-btn:hover {
  background: #4ade80;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.45);
}

.inspector-body {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.inspector-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.inspector-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  color: #64748b;
  letter-spacing: 0.04em;
}

.inspector-val {
  font-size: 13px;
  font-weight: 600;
  color: #cbd5e1;
  word-break: break-word;
}

@media (max-width: 900px) {
  .inspector-body {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .inspector-body {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   5. RESEARCH LAB & BENCHMARKS (Screenshot 3)
   ========================================================================== */

.research-section {
  text-align: left;
}

.research-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
}

.view-all-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: #94a3b8;
  cursor: pointer;
  transition: color 0.15s ease;
}

.view-all-link:hover { color: #ffffff; }

.research-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  padding-bottom: 14px;
  overflow-x: auto;
}

.res-tab {
  background: transparent;
  border: none;
  color: #64748b;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.res-tab:hover {
  color: #ffffff;
}

.res-tab.active {
  color: #4ade80;
  background: rgba(74, 222, 128, 0.08);
  font-weight: 600;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.research-card {
  background: #0f1217;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 16px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
  cursor: pointer;
}

.research-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
}

.res-card-tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 18px;
}

.res-card-tag.comparisons {
  color: #60a5fa;
  background: rgba(96, 165, 250, 0.1);
}

.res-card-tag.guides {
  color: #fbbf24;
  background: rgba(251, 191, 36, 0.1);
}

.res-card-tag.engineering {
  color: #4ade80;
  background: rgba(74, 222, 128, 0.1);
}

.res-card-title {
  font-family: var(--font-serif);
  font-size: 25px;
  font-weight: 400;
  line-height: 1.25;
  color: #f1f5f9;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}

.res-card-desc {
  font-size: 14px;
  line-height: 1.62;
  color: #94a3b8;
  margin: 0 0 28px;
  flex: 1;
}

.res-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12.5px;
  color: #64748b;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 16px;
}

.res-card-arrow {
  font-size: 16px;
  color: #94a3b8;
  transition: transform 0.2s ease, color 0.2s ease;
}

.research-card:hover .res-card-arrow {
  transform: translate(2px, -2px);
  color: #4ade80;
}

/* ==========================================================================
   6. NUMBERED FAQ ACCORDION SECTION (Screenshot 4)
   ========================================================================== */

.faqs-section {
  padding: 130px 28px;
}

.faqs-container {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 60px;
  text-align: left;
}

.faqs-main-title {
  font-family: var(--font-serif);
  font-size: clamp(48px, 6vw, 70px);
  font-weight: 400;
  color: #ffffff;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.faqs-lead {
  font-size: 16px;
  line-height: 1.6;
  color: #94a3b8;
  max-width: 300px;
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: #0f1217;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-item.active {
  border-color: rgba(74, 222, 128, 0.35);
  border-left: 3px solid #22c55e;
  background: #11151b;
}

.faq-question-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  background: transparent;
  border: none;
  padding: 20px 24px;
  color: #f1f5f9;
  cursor: pointer;
  text-align: left;
}

.faq-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: #4ade80;
  min-width: 28px;
}

.faq-question {
  flex: 1;
  font-size: 16.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.faq-icon {
  font-size: 14px;
  color: #64748b;
  transition: transform 0.25s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: #4ade80;
}

.faq-answer {
  display: none;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  padding: 0;
  margin: 0;
  transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.2s ease;
}

.faq-item.active .faq-answer {
  display: block;
  max-height: 500px;
  opacity: 1;
  visibility: visible;
  padding: 0 24px 22px 68px;
}

.faq-answer p {
  font-size: 14.5px;
  line-height: 1.65;
  color: #94a3b8;
  margin: 0;
}

/* ==========================================================================
   7. CINEMATIC HORIZON & FOOTER (Screenshot 5)
   ========================================================================== */

.landing-horizon-section {
  position: relative;
  overflow: hidden;
  padding: 160px 24px 100px;
  text-align: center;
  background: linear-gradient(180deg, #080a0d 0%, #0c0f14 50%, #07090c 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.horizon-visual-wrap {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.horizon-glow {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  width: 750px;
  height: 350px;
  background: radial-gradient(ellipse at center, rgba(34, 197, 94, 0.15) 0%, rgba(34, 197, 94, 0.06) 40%, transparent 70%);
}

.horizon-mountains-back {
  position: absolute;
  bottom: 60px;
  left: -10%;
  width: 120%;
  height: 220px;
  background: radial-gradient(ellipse at 50% 100%, #151a22 0%, #0b0e13 70%, transparent 100%);
  border-radius: 50% 50% 0 0 / 25% 25% 0 0;
  opacity: 0.85;
}

.horizon-watermark-text {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-serif);
  font-size: clamp(140px, 22vw, 300px);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.07);
  letter-spacing: -0.04em;
  pointer-events: none;
  user-select: none;
  z-index: 1;
  line-height: 0.75;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 1) 30%, transparent 90%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 1) 30%, transparent 90%);
}

.horizon-mountains-front {
  position: absolute;
  bottom: 0;
  left: -5%;
  width: 110%;
  height: 140px;
  background: radial-gradient(ellipse at 50% 100%, #0d1016 0%, #080a0d 80%);
  border-radius: 50% 50% 0 0 / 20% 20% 0 0;
  z-index: 2;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.9);
}

.horizon-content {
  position: relative;
  z-index: 5;
  max-width: 800px;
  margin: 0 auto;
}

.horizon-title {
  font-family: var(--font-serif);
  font-size: clamp(42px, 5.5vw, 64px);
  font-weight: 400;
  line-height: 1.1;
  color: #ffffff;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}

.horizon-subtitle {
  font-size: 18px;
  line-height: 1.6;
  color: #94a3b8;
  margin: 0 auto 36px;
  max-width: 600px;
}

.horizon-cta {
  padding: 15px 32px;
  font-size: 16.5px;
}

/* Minimalist Footer with Inactive Policy Placeholders */
.landing-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: #06080a;
  padding: 40px 28px;
}

.landing-footer .footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-nav-left {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
}

.footer-link {
  font-size: 13.5px;
  color: #64748b;
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: #f1f5f9;
}

.footer-link-disabled {
  font-size: 13.5px;
  color: #475569;
  cursor: default;
  opacity: 0.45;
  pointer-events: none;
  user-select: none;
}

.footer-copyright {
  font-size: 13px;
  color: #475569;
}

/* ==========================================================================
   PRODUCTION RESPONSIVE SUITE (TABLET & MOBILE OPTIMIZATION)
   ========================================================================== */

/* Tablet view (max-width: 1024px) */
@media (max-width: 1024px) {
  .showcase-container { grid-template-columns: 1fr; gap: 40px; }
  .bento-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .bento-hero-card { grid-column: span 2; }
  .models-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .research-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .faqs-container { grid-template-columns: 1fr; gap: 28px; }
}

/* Mobile Devices & Small Tablets (max-width: 768px) */
@media (max-width: 768px) {
  /* Prevent any unintentional horizontal drift */
  html, body, .landing-view {
    max-width: 100vw !important;
    overflow-x: hidden !important;
  }

  /* 1. Landing Navigation */
  .landing-nav {
    position: sticky;
    top: 0;
    z-index: 70;
  }

  .landing-nav-inner {
    height: 56px;
    padding: 0 14px;
  }

  .brand-title {
    font-size: 17px;
  }

  .brand-badge {
    font-size: 10px;
    padding: 1px 6px;
  }

  .landing-nav-links {
    display: none !important;
  }

  /* On mobile, hide the status pill to give full room to actions */
  .nav-status-pill {
    display: none !important;
  }

  .landing-nav-actions {
    gap: 8px;
  }

  .btn-ghost-nav {
    padding: 6px 12px;
    font-size: 12.5px;
    border-radius: 7px;
  }

  .btn-accent-nav {
    padding: 6px 14px;
    font-size: 12.5px;
    border-radius: 7px;
    box-shadow: 0 2px 10px rgba(34, 197, 94, 0.2);
  }

  /* 2. Hero Section */
  .landing-hero {
    padding: 34px 14px 28px !important;
    max-width: 100vw;
    box-sizing: border-box;
  }

  .hero-stars-backdrop {
    width: 100% !important;
    max-width: 100vw !important;
    height: 280px;
    top: -20px;
  }

  .hero-badge {
    font-size: 11px !important;
    padding: 4px 12px !important;
    margin-bottom: 14px !important;
    max-width: 96%;
    line-height: 1.35;
    text-align: center;
    border-radius: 20px;
  }

  .hero-serif-title,
  .hero-title.hero-serif-title {
    font-size: clamp(28px, 8.2vw, 38px) !important;
    line-height: 1.14 !important;
    letter-spacing: -0.02em !important;
    max-width: 100% !important;
    margin: 0 0 12px !important;
    padding: 0 4px;
  }

  .hero-subtitle {
    font-size: 14px !important;
    line-height: 1.55 !important;
    margin: 0 0 18px !important;
    max-width: 100% !important;
    padding: 0 4px;
    color: #94a3b8;
  }

  /* Horizontal touch swipe for hero category pills */
  .hero-pill-tabs {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    max-width: 100% !important;
    width: 100%;
    box-sizing: border-box;
    padding: 4px 6px !important;
    gap: 6px !important;
    margin-bottom: 22px !important;
    border-radius: 100px;
    justify-content: flex-start;
  }

  .hero-pill-tabs::-webkit-scrollbar {
    display: none;
  }

  .pill-tab {
    font-size: 12px !important;
    padding: 5px 12px !important;
    white-space: nowrap !important;
    flex-shrink: 0 !important;
  }

  /* Hero CTA Button */
  .hero-action-box {
    width: 100%;
    margin-bottom: 24px;
    gap: 10px;
  }

  .hero-cta-btn {
    width: 100% !important;
    max-width: 320px !important;
    justify-content: center !important;
    padding: 13px 18px !important;
    font-size: 15px !important;
    border-radius: 12px !important;
  }

  .cta-arrow-badge {
    font-size: 10px !important;
    padding: 2px 6px !important;
  }

  .hero-subtext {
    font-size: 11.5px !important;
    line-height: 1.45;
    padding: 0 10px;
    text-align: center;
  }

  .hero-counter-wrap {
    font-size: 15px !important;
    margin-bottom: 24px !important;
  }

  /* Comparison Matrix Card */
  .hero-comparison-card {
    padding: 12px !important;
    border-radius: 14px !important;
    gap: 8px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .comparison-row {
    display: grid !important;
    grid-template-columns: 1fr auto !important;
    align-items: center !important;
    padding: 9px 10px !important;
    gap: 6px 10px !important;
    border-radius: 10px !important;
  }

  .comp-brand {
    min-width: 0 !important;
    gap: 8px !important;
  }

  .comp-icon {
    width: 26px !important;
    height: 26px !important;
    font-size: 13px !important;
    border-radius: 6px !important;
  }

  .comp-info strong {
    font-size: 12.5px !important;
    line-height: 1.2;
  }

  .comp-info span {
    font-size: 10.5px !important;
    line-height: 1.2;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    max-width: 170px !important;
  }

  .comp-price {
    font-size: 13.5px !important;
    min-width: auto !important;
    text-align: right !important;
  }

  .comp-bar-track {
    grid-column: span 2 !important;
    width: 100% !important;
    height: 6px !important;
    margin-top: 2px !important;
  }

  /* 3. Showcase Section */
  .landing-showcase-section {
    padding: 40px 14px 32px !important;
    max-width: 100vw !important;
    box-sizing: border-box !important;
  }

  .showcase-container {
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 26px !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .showcase-left {
    min-width: 0 !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .showcase-title {
    font-size: clamp(20px, 5.8vw, 26px) !important;
    line-height: 1.22 !important;
    margin: 0 0 12px !important;
    overflow-wrap: break-word !important;
    word-break: break-word !important;
  }

  .showcase-desc {
    font-size: 13.5px !important;
    line-height: 1.55 !important;
    margin: 0 0 18px !important;
    overflow-wrap: break-word !important;
  }

  .replaces-block {
    margin-bottom: 20px !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .replaces-grid {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 6px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .replace-item {
    font-size: 10.5px !important;
    padding: 5px 6px !important;
    border-radius: 6px !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    min-width: 0 !important;
    width: 100% !important;
    box-sizing: border-box !important;
    gap: 5px !important;
    justify-content: flex-start !important;
  }

  .replace-item span:last-child {
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
    display: inline-block !important;
  }

  .showcase-stats-grid {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 6px !important;
    margin-bottom: 20px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .showcase-stat-item {
    padding: 8px 6px !important;
    text-align: center !important;
    align-items: center !important;
    border-radius: 8px !important;
    min-width: 0 !important;
  }

  .showcase-stat-val {
    font-size: 16px !important;
  }

  .showcase-stat-label {
    font-size: 9.5px !important;
    text-align: center !important;
  }

  .showcase-cta-group {
    flex-direction: column !important;
    width: 100% !important;
    gap: 10px !important;
  }

  .showcase-cta-group button {
    width: 100% !important;
    justify-content: center !important;
    padding: 12px !important;
    font-size: 14px !important;
    box-sizing: border-box !important;
  }

  /* Terminal Simulator Window */
  .showcase-right {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .terminal-sim-window {
    border-radius: 14px !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
  }

  .terminal-sim-topbar {
    height: 38px !important;
    padding: 0 10px !important;
    min-width: 0 !important;
    overflow: hidden !important;
  }

  .terminal-sim-title-wrap {
    min-width: 0 !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
  }

  .terminal-sim-badge {
    font-size: 11px !important;
    padding: 2px 6px !important;
    max-width: 160px !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
  }

  .terminal-sim-branch {
    display: none !important;
  }

  .terminal-sim-status {
    display: none !important;
  }

  .terminal-sim-tabs {
    overflow-x: auto !important;
    flex-wrap: nowrap !important;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 0 4px !important;
    gap: 2px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .terminal-sim-tabs::-webkit-scrollbar {
    display: none;
  }

  .sim-tab {
    padding: 8px 10px !important;
    font-size: 11.5px !important;
    flex-shrink: 0 !important;
  }

  .terminal-sim-presets {
    overflow-x: auto !important;
    flex-wrap: nowrap !important;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 6px 10px !important;
    gap: 6px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .terminal-sim-presets::-webkit-scrollbar {
    display: none;
  }

  .presets-label {
    display: none !important;
  }

  .sim-preset-chip {
    padding: 3px 8px !important;
    font-size: 10.5px !important;
    flex-shrink: 0 !important;
  }

  .terminal-sim-body {
    padding: 10px !important;
    min-height: auto !important;
    gap: 8px !important;
  }

  .terminal-sim-cmd-line {
    padding: 7px 9px !important;
    font-size: 11px !important;
    gap: 6px !important;
  }

  .sim-step-item {
    padding: 8px 10px !important;
    border-radius: 8px !important;
  }

  .sim-step-title {
    font-size: 11.5px !important;
    word-break: break-word !important;
  }

  .sim-step-detail {
    font-size: 11px !important;
    line-height: 1.45 !important;
  }

  .terminal-sim-input-bar {
    padding: 6px 8px !important;
    gap: 6px !important;
  }

  .terminal-sim-input-bar input {
    font-size: 12px !important;
  }

  .sim-run-btn {
    padding: 5px 12px !important;
    font-size: 12px !important;
  }

  /* 4. Capabilities Bento Grid */
  .landing-section {
    padding: 40px 14px 32px !important;
    max-width: 100vw !important;
    box-sizing: border-box !important;
  }

  .section-badge {
    font-size: 10.5px !important;
    padding: 3px 10px !important;
    margin-bottom: 12px !important;
  }

  .section-title {
    font-size: clamp(22px, 6.5vw, 28px) !important;
    line-height: 1.25 !important;
    margin-bottom: 10px !important;
  }

  .section-subtitle {
    font-size: 13.5px !important;
    line-height: 1.5 !important;
    margin-bottom: 20px !important;
  }

  .bento-grid {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  .bento-hero-card {
    grid-column: span 1 !important;
  }

  .bento-card {
    padding: 16px 14px !important;
    border-radius: 12px !important;
  }

  .bento-icon {
    width: 34px !important;
    height: 34px !important;
    font-size: 17px !important;
    margin-bottom: 8px !important;
  }

  .bento-card h3 {
    font-size: 15px !important;
    margin-bottom: 4px !important;
  }

  .bento-card p {
    font-size: 12.5px !important;
    line-height: 1.5 !important;
  }

  /* 5. Models Fleet Section */
  .models-grid {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  .model-card {
    padding: 14px 12px !important;
    border-radius: 12px !important;
  }

  .model-card h3 {
    font-size: 15px !important;
    margin: 4px 0 !important;
  }

  .model-card p {
    font-size: 12px !important;
    line-height: 1.45 !important;
    margin-bottom: 8px !important;
  }

  .model-card-metrics {
    gap: 5px !important;
    flex-wrap: wrap !important;
  }

  .model-card-metrics span {
    font-size: 10px !important;
    padding: 2px 6px !important;
  }

  .model-inspector-card {
    padding: 12px !important;
    border-radius: 12px !important;
    margin-top: 12px !important;
  }

  .inspector-header {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 8px !important;
  }

  .inspector-left {
    flex-wrap: wrap !important;
    gap: 6px !important;
  }

  #inspectorModelName {
    font-size: 13px !important;
  }

  .inspector-try-btn {
    width: 100% !important;
    justify-content: center !important;
    padding: 9px !important;
    font-size: 12.5px !important;
  }

  .inspector-body {
    grid-template-columns: 1fr 1fr !important;
    gap: 8px !important;
    padding-top: 10px !important;
  }

  .inspector-val {
    font-size: 11.5px !important;
  }

  /* 6. Research Section */
  .research-header-row {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 6px !important;
    margin-bottom: 14px !important;
  }

  .research-tabs {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 6px !important;
    width: 100% !important;
    padding-bottom: 4px !important;
  }

  .research-tabs::-webkit-scrollbar {
    display: none;
  }

  .res-tab {
    padding: 5px 12px !important;
    font-size: 11.5px !important;
    flex-shrink: 0 !important;
  }

  .research-grid {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  .research-card {
    padding: 14px 12px !important;
    border-radius: 12px !important;
  }

  .res-card-title {
    font-size: 14px !important;
    line-height: 1.35 !important;
  }

  .res-card-desc {
    font-size: 12px !important;
    line-height: 1.45 !important;
  }

  /* 7. FAQs Section */
  .faqs-container {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }

  .faqs-main-title {
    font-size: clamp(24px, 7vw, 30px) !important;
    margin-bottom: 6px !important;
  }

  .faqs-subtitle {
    font-size: 13.5px !important;
    margin-bottom: 14px !important;
  }

  .faqs-section {
    max-width: 100vw !important;
    box-sizing: border-box !important;
    overflow-x: hidden !important;
  }

  .faq-item {
    border-radius: 10px !important;
    background: #0f1217 !important;
    overflow: hidden !important;
    margin-bottom: 8px !important;
  }

  .faq-question-btn {
    padding: 12px 10px !important;
    gap: 8px !important;
    min-height: 44px !important;
  }

  .faq-num {
    font-size: 11px !important;
  }

  .faq-question {
    font-size: 13px !important;
    line-height: 1.35 !important;
  }

  .faq-item:not(.active) .faq-answer {
    display: none !important;
    max-height: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    overflow: hidden !important;
    visibility: hidden !important;
    opacity: 0 !important;
  }

  .faq-item.active .faq-answer {
    display: block !important;
    max-height: 500px !important;
    padding: 0 12px 14px 44px !important;
    font-size: 12.5px !important;
    line-height: 1.5 !important;
    visibility: visible !important;
    opacity: 1 !important;
  }

  /* 8. Horizon Footer Section */
  .landing-horizon-section {
    padding: 40px 14px 28px !important;
    max-width: 100vw !important;
    box-sizing: border-box !important;
  }

  .horizon-watermark-text {
    font-size: clamp(48px, 16vw, 76px) !important;
    line-height: 1 !important;
    margin-bottom: 10px !important;
  }

  .horizon-title {
    font-size: clamp(19px, 5.5vw, 24px) !important;
    line-height: 1.25 !important;
    margin-bottom: 8px !important;
  }

  .horizon-subtitle {
    font-size: 13px !important;
    line-height: 1.5 !important;
    margin-bottom: 20px !important;
  }

  .horizon-actions {
    flex-direction: column !important;
    width: 100% !important;
    gap: 8px !important;
  }

  .horizon-actions button {
    width: 100% !important;
    justify-content: center !important;
    padding: 12px !important;
    font-size: 14px !important;
  }

  .landing-footer {
    padding: 20px 14px calc(20px + env(safe-area-inset-bottom, 0px)) !important;
  }

  .landing-footer .footer-inner {
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    gap: 10px !important;
  }

  .footer-links {
    flex-wrap: wrap !important;
    justify-content: center !important;
    gap: 12px !important;
    font-size: 12px !important;
  }

  /* 9. Chat App View Mobile Polish */
  .topbar {
    height: 52px !important;
    padding: 0 10px !important;
    gap: 6px !important;
  }

  .chat-title-header {
    font-size: 13.5px !important;
    max-width: 130px !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
  }

  .topbar-actions {
    gap: 4px !important;
  }

  .guide-btn {
    padding: 4px 8px !important;
    font-size: 11.5px !important;
  }

  .topbar-export-btn span {
    display: none !important;
  }

  .chat-area {
    padding: 8px 8px 110px 8px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .message-row {
    max-width: 100% !important;
    gap: 6px !important;
    padding: 3px 0 !important;
  }

  .bubble {
    max-width: 96% !important;
    font-size: 14px !important;
    line-height: 1.55 !important;
    word-break: break-word !important;
    padding: 9px 12px !important;
    border-radius: 14px !important;
  }

  .bubble pre {
    overflow-x: auto !important;
    max-width: 100% !important;
    font-size: 12px !important;
    border-radius: 8px !important;
  }

  .bubble table {
    display: block !important;
    overflow-x: auto !important;
    max-width: 100% !important;
    font-size: 12px !important;
  }

  .composer-wrap {
    padding: 6px 8px calc(6px + env(safe-area-inset-bottom, 0px)) !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .composer {
    border-radius: 14px !important;
    padding: 8px 10px 6px !important;
  }

  .composer textarea#prompt {
    font-size: 14px !important;
    min-height: 24px !important;
    max-height: 140px !important;
  }

  .composer-toolbar {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    margin-top: 4px !important;
  }

  .attach-btn, .presets-btn, .mic-btn {
    width: 32px !important;
    height: 32px !important;
    flex: 0 0 32px !important;
  }

  .send-btn {
    width: 34px !important;
    height: 34px !important;
    flex: 0 0 34px !important;
    border-radius: 9px !important;
  }

  .composer-subbar {
    margin-top: 4px !important;
    justify-content: space-between !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 2px !important;
  }

  .composer-subbar .model-select {
    max-width: 155px !important;
    font-size: 11px !important;
    height: 26px !important;
    padding: 2px 4px !important;
  }

  .mode-dropdown-btn {
    font-size: 11.5px !important;
    height: 26px !important;
    padding: 2px 6px !important;
  }

  .presets-dropdown, .attach-dropdown, .mode-dropdown-menu {
    max-width: min(320px, 92vw) !important;
    box-sizing: border-box !important;
  }

  /* 10. Modals & Drawers on Mobile */
  .auth-modal-overlay {
    padding: 12px 8px !important;
    align-items: center !important;
  }

  .auth-modal-suite {
    grid-template-columns: 1fr !important;
    max-width: min(420px, 95vw) !important;
    max-height: calc(100vh - 24px) !important;
    border-radius: 18px !important;
  }

  .auth-sidebar-showcase {
    display: none !important;
  }

  .auth-form-column {
    padding: 22px 18px 16px !important;
    max-height: calc(100vh - 24px) !important;
    overflow-y: auto !important;
    overscroll-behavior: contain !important;
  }

  .settings-modal-card {
    width: min(520px, 94vw) !important;
    padding: 20px 16px !important;
    border-radius: 16px !important;
  }

  .guide-drawer {
    width: 100vw !important;
    max-width: 100vw !important;
  }
}

/* ==========================================================================
   AUTH MODAL
   ========================================================================== */

.auth-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadeIn 0.2s ease;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.auth-modal-suite {
  background: #0f1318;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  width: 100%;
  max-width: 840px;
  max-height: min(92vh, 790px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.85), 0 0 50px rgba(34, 197, 94, 0.1);
  animation: slideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.auth-modal-card {
  background: #14181d;
  border: 1px solid #2a313a;
  border-radius: 18px;
  width: 100%;
  max-width: 420px;
  padding: 32px 28px 28px;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 40px rgba(34, 197, 94, 0.08);
  animation: slideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.auth-close-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 7px;
  z-index: 20;
  transition: all 0.15s ease;
}

.auth-close-btn:hover {
  color: var(--text);
  background: var(--panel-2);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Auth Left Column: Showcase & Platform Guarantees */
.auth-sidebar-showcase {
  background: linear-gradient(165deg, #0f1c16 0%, #090d12 100%);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: left;
  position: relative;
  max-height: min(92vh, 790px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.12) transparent;
}

.auth-brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}

.auth-logo-glow {
  filter: drop-shadow(0 0 12px rgba(34, 197, 94, 0.45));
}

.auth-brand-title {
  display: block;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
}

.auth-brand-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #4ade80;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.auth-showcase-heading {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 400;
  color: #ffffff;
  line-height: 1.25;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.auth-showcase-desc {
  font-size: 13.5px;
  color: #94a3b8;
  line-height: 1.55;
  margin: 0 0 24px;
}

.auth-perks-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 26px;
}

.auth-perk-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.perk-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #4ade80;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.auth-perk-item strong {
  display: block;
  color: #f1f5f9;
  font-weight: 600;
  font-size: 13px;
  line-height: 1.3;
}

.auth-perk-item span {
  display: block;
  color: #64748b;
  font-size: 11.5px;
  line-height: 1.4;
  margin-top: 2px;
}

.auth-quote-card {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 12px;
  padding: 14px 16px;
  margin-top: auto;
}

.auth-quote-text {
  font-size: 12.5px;
  font-style: italic;
  color: #cbd5e1;
  line-height: 1.5;
  margin: 0 0 8px;
}

.auth-quote-author {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: #64748b;
}

.author-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
}

/* Auth Right Column: Forms & Controls */
.auth-form-column {
  padding: 24px 28px 18px;
  display: flex;
  flex-direction: column;
  text-align: left;
  background: #0f1318;
  position: relative;
  max-height: min(92vh, 790px);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.18) transparent;
}

.auth-form-column::-webkit-scrollbar,
.auth-sidebar-showcase::-webkit-scrollbar {
  width: 5px;
}

.auth-form-column::-webkit-scrollbar-track,
.auth-sidebar-showcase::-webkit-scrollbar-track {
  background: transparent;
}

.auth-form-column::-webkit-scrollbar-thumb,
.auth-sidebar-showcase::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.16);
  border-radius: 10px;
}

.auth-form-column::-webkit-scrollbar-thumb:hover,
.auth-sidebar-showcase::-webkit-scrollbar-thumb:hover {
  background: rgba(34, 197, 94, 0.5);
}

.auth-column-header {
  margin-bottom: 12px;
}

.auth-column-header h2 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 3px;
  color: #ffffff;
}

.auth-column-header p {
  font-size: 12.5px;
  color: #8a909a;
  margin: 0;
}

.auth-tabs {
  display: flex;
  background: #090c10;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 9px;
  padding: 2px;
  margin-bottom: 12px;
}

.auth-tab {
  flex: 1;
  padding: 6px 8px;
  border-radius: 7px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.auth-tab.active {
  background: #181d24;
  color: var(--text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.auth-alert {
  background: rgba(224, 104, 92, 0.12);
  border: 1px solid rgba(224, 104, 92, 0.35);
  color: #ff8579;
  font-size: 12px;
  padding: 8px 12px;
  border-radius: 8px;
  margin-bottom: 12px;
  line-height: 1.4;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.auth-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: left;
}

.auth-form label {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 12px;
  color: #64748b;
  pointer-events: none;
}

.auth-form input {
  width: 100%;
  background: #090c10;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 8px 36px;
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.auth-form input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18);
}

.password-toggle-btn {
  position: absolute;
  right: 10px;
  background: transparent;
  border: none;
  color: #64748b;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: grid;
  place-items: center;
  transition: color 0.15s ease;
}

.password-toggle-btn:hover {
  color: #cbd5e1;
}

/* Password Strength Bar */
.password-strength-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 2px;
}

.password-strength-track {
  height: 3px;
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  overflow: hidden;
}

.password-strength-fill {
  height: 100%;
  width: 0%;
  border-radius: 100px;
  transition: width 0.25s ease, background-color 0.25s ease;
}

.password-strength-text {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: #64748b;
}

.auth-submit-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  border: none;
  color: #0d0f12;
  font-weight: 700;
  font-size: 13.5px;
  padding: 10px;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 3px;
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.3);
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.auth-submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(34, 197, 94, 0.45);
}

.auth-submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* 1-Click Guest Test Drive & Divider */
.auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 10px 0 8px;
  color: #475569;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.auth-divider span {
  padding: 0 8px;
}

.auth-alt-buttons {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.google-auth-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text, #f1f5f9);
  font-size: 12.5px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.google-auth-btn:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

[data-theme="light"] .google-auth-btn {
  background: #ffffff;
  border-color: #d1d5db;
  color: #1f2937;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .google-auth-btn:hover {
  background: #f9fafb;
  border-color: #9ca3af;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.auth-demo-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #4ade80;
  font-size: 12px;
  font-weight: 600;
  padding: 9px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.auth-demo-btn:hover {
  background: rgba(34, 197, 94, 0.16);
  border-color: #22c55e;
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.25);
}

.auth-disclaimer {
  text-align: center;
  font-size: 10.5px;
  color: #64748b;
  margin: 6px 0 0;
}

@media (max-width: 768px) {
  .auth-modal-suite {
    grid-template-columns: 1fr;
    max-width: 440px;
  }
  .auth-sidebar-showcase {
    display: none;
  }
}

/* ==========================================================================
   SIDEBAR USER PROFILE CARD & CLAUDE-STYLE POPUP MENU
   ========================================================================== */

.user-menu-anchor {
  position: relative;
  flex: 1;
  min-width: 0;
}

.user-profile-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  width: 100%;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
  color: inherit;
}

.user-profile-card:hover {
  background: var(--panel-2);
  border-color: rgba(255, 255, 255, 0.05);
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #ff5722);
  color: #0d0f12;
  font-weight: 700;
  font-size: 14px;
  display: grid;
  place-items: center;
  text-transform: uppercase;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(34, 197, 94, 0.25);
}

.user-details {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex: 1;
  text-align: left;
}

.user-name {
  font-size: 13.5px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-status-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  color: #56c98b;
  display: flex;
  align-items: center;
  gap: 4px;
}

.user-status-badge::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #56c98b;
  border-radius: 50%;
}

.profile-chevron {
  color: var(--muted);
  flex-shrink: 0;
  margin-left: auto;
  transition: transform 0.2s ease;
}

.user-menu-anchor.is-open .profile-chevron {
  transform: rotate(180deg);
}

/* Footer Collapse Button (Shifted from top header) */
.collapse-sidebar-footer-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.15s ease;
}

.collapse-sidebar-footer-btn:hover {
  background: var(--panel-2);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="light"] .collapse-sidebar-footer-btn:hover {
  background: #f1f4f8 !important;
  color: #111418 !important;
  border-color: #d4dae2 !important;
}

/* Floating Profile Popup Menu (Claude-Style Opens Upwards) */
.user-profile-menu {
  position: absolute;
  bottom: 72px;
  left: 12px;
  width: 250px;
  background: #181b20;
  border: 1px solid #2d333a;
  border-radius: 14px;
  padding: 6px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.6), 0 4px 14px rgba(0, 0, 0, 0.3);
  z-index: 120;
  animation: rise 0.16s cubic-bezier(0.16, 1, 0.3, 1);
  backdrop-filter: blur(16px);
}

[data-theme="light"] .user-profile-menu {
  background: #ffffff !important;
  border-color: #d4dae2 !important;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12) !important;
}

.user-menu-header {
  padding: 8px 10px 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}

.user-menu-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-2);
  font-weight: 600;
}

.user-menu-email {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-menu-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.07);
  margin: 4px 0;
}

[data-theme="light"] .user-menu-divider {
  background: #edf0f5 !important;
}

.user-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border-radius: 9px;
  background: transparent;
  border: 0;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all 0.12s ease;
}

.user-menu-item:hover {
  background: var(--panel-2);
  transform: translateX(2px);
}

[data-theme="light"] .user-menu-item:hover {
  background: #f1f4f8 !important;
}

.user-menu-item.user-menu-logout:hover {
  background: rgba(224, 104, 92, 0.12);
  color: #ff8579;
}

/* User Menu Usage Item with Hover Flyout */
.user-menu-usage-item {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 8px 10px;
  cursor: default;
}

.menu-usage-main {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.usage-icon {
  color: var(--accent, #22c55e);
  flex-shrink: 0;
}

.menu-usage-texts {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.menu-usage-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  font-size: 13px;
  font-weight: 500;
}

.menu-usage-badge {
  font-family: var(--font-mono, monospace);
  font-size: 11px;
  color: var(--accent, #22c55e);
  font-weight: 600;
}

.menu-usage-mini-track {
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 99px;
  overflow: hidden;
}

[data-theme="light"] .menu-usage-mini-track {
  background: #e2e8f0;
}

.menu-usage-mini-fill {
  height: 100%;
  background: linear-gradient(90deg, #22c55e, #16a34a);
  border-radius: 99px;
  transition: width 0.3s ease;
}

/* Hover Flyout Card for Daily Token Quota */
.usage-flyout-card {
  position: absolute;
  left: calc(100% + 8px);
  bottom: -10px;
  width: 250px;
  background: #181b20;
  border: 1px solid #2d333a;
  border-radius: 12px;
  padding: 14px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.65), 0 0 25px rgba(34, 197, 94, 0.08);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  transform: translateX(-4px);
  z-index: 250;
}

.usage-flyout-card::before {
  content: "";
  position: absolute;
  left: -5px;
  bottom: 24px;
  width: 8px;
  height: 8px;
  background: #181b20;
  border-left: 1px solid #2d333a;
  border-bottom: 1px solid #2d333a;
  transform: rotate(45deg);
}

.user-menu-usage-item:hover .usage-flyout-card,
.user-menu-usage-item:focus-within .usage-flyout-card {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(0);
}

[data-theme="light"] .usage-flyout-card {
  background: #ffffff !important;
  border-color: #d4dae2 !important;
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.12) !important;
}

[data-theme="light"] .usage-flyout-card::before {
  background: #ffffff;
  border-left-color: #d4dae2;
  border-bottom-color: #d4dae2;
}

.flyout-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

[data-theme="light"] .flyout-header {
  border-bottom-color: #edf0f5;
}

.flyout-title-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}

.flyout-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text);
}

.flyout-percent-badge {
  font-family: var(--font-mono, monospace);
  font-size: 10.5px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 6px;
  background: rgba(34, 197, 94, 0.12);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.flyout-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  margin-bottom: 6px;
}

.flyout-label {
  color: var(--muted);
}

.flyout-val {
  font-family: var(--font-mono, monospace);
  font-size: 11.5px;
  color: var(--text);
}

.flyout-remaining {
  font-family: var(--font-mono, monospace);
  font-size: 11.5px;
  color: #22c55e;
}

.flyout-progress-track {
  width: 100%;
  height: 5px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 99px;
  margin: 10px 0 12px;
  overflow: hidden;
}

[data-theme="light"] .flyout-progress-track {
  background: #e2e8f0;
}

.flyout-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #22c55e, #16a34a);
  border-radius: 99px;
  transition: width 0.3s ease;
}

.flyout-footer {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10.5px;
  color: var(--muted);
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

[data-theme="light"] .flyout-footer {
  border-top-color: #edf0f5;
  color: #64748b;
}

.flyout-footer svg {
  flex-shrink: 0;
  color: var(--muted);
}

/* ==========================================================================
   SETTINGS MODAL
   ========================================================================== */

.settings-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.settings-modal-card {
  background: #14181d;
  border: 1px solid #2a313a;
  border-radius: 18px;
  width: 100%;
  max-width: 500px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  padding: 0;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 40px rgba(34, 197, 94, 0.08);
  animation: slideUp 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

[data-theme="light"] .settings-modal-card {
  background: #ffffff !important;
  border-color: #d4dae2 !important;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.14) !important;
}

.settings-close-btn {
  position: absolute;
  top: 16px;
  right: 18px;
  z-index: 10;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.settings-close-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.1);
}

[data-theme="light"] .settings-close-btn {
  background: #f1f4f8 !important;
  border-color: #d4dae2 !important;
  color: #64748b !important;
}

.settings-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 24px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  flex-shrink: 0;
}

[data-theme="light"] .settings-header {
  border-bottom-color: #edf0f5 !important;
}

.settings-header-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--accent);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.settings-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
}

.settings-subtitle {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.settings-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
}

.settings-section {
  display: flex;
  flex-direction: column;
}

.settings-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 4px;
}

.settings-section-desc {
  font-size: 12px;
  color: var(--muted-2);
  margin-bottom: 10px;
}

.settings-profile-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  background: var(--panel-2);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
}

[data-theme="light"] .settings-profile-card {
  background: #f8fafc !important;
  border-color: #e2e8f0 !important;
}

.settings-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #ff5722);
  color: #0d0f12;
  font-weight: 700;
  font-size: 18px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.28);
}

.settings-profile-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}

.settings-profile-name-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.settings-username {
  font-size: 15px;
  font-weight: 600;
}

.settings-badge {
  font-size: 10px;
  font-family: var(--font-mono);
  background: rgba(86, 201, 139, 0.15);
  color: #56c98b;
  border: 1px solid rgba(86, 201, 139, 0.3);
  padding: 2px 6px;
  border-radius: 6px;
}

.settings-email {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.settings-theme-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.settings-theme-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--panel-2);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
}

[data-theme="light"] .settings-theme-btn {
  background: #f8fafc !important;
  border-color: #d4dae2 !important;
}

.settings-theme-btn:hover {
  border-color: rgba(34, 197, 94, 0.4);
  transform: translateY(-1px);
}

.settings-theme-btn.active {
  background: rgba(34, 197, 94, 0.12) !important;
  border-color: var(--accent) !important;
  color: var(--accent) !important;
  box-shadow: 0 0 16px rgba(34, 197, 94, 0.15);
}

.theme-icon-indicator {
  font-size: 18px;
}

.theme-btn-info {
  display: flex;
  flex-direction: column;
}

.theme-name {
  font-size: 13px;
  font-weight: 600;
}

.theme-desc {
  font-size: 10.5px;
  color: var(--muted);
}

.settings-footer {
  margin-top: 0;
  padding: 14px 24px 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  display: flex;
  justify-content: flex-end;
  flex-shrink: 0;
  background: rgba(20, 24, 29, 0.95);
}

[data-theme="light"] .settings-footer {
  border-top-color: #edf0f5 !important;
  background: #f8fafc !important;
}

.settings-done-btn {
  padding: 8px 20px;
  border-radius: 10px;
  background: var(--accent);
  color: #0d0f12;
  font-weight: 600;
  font-size: 13px;
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.settings-done-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

/* ---------------- LaTeX Math Rendering (KaTeX) ---------------- */
.cortex-math-display,
.katex-display {
  margin: 16px 0 !important;
  padding: 14px 18px !important;
  background: rgba(255, 255, 255, 0.02) !important;
  border: 1px solid rgba(255, 255, 255, 0.06) !important;
  border-radius: 10px !important;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  max-width: 100% !important;
  text-align: center !important;
  color: #f1f3f5 !important;
}

.cortex-math-display .katex,
.katex-display .katex {
  font-size: 1.15em !important;
  color: #f5f7fa !important;
  white-space: nowrap !important;
}

.cortex-math-inline,
.katex {
  color: #f5f7fa !important;
  font-size: 1.05em !important;
}

.katex .mord,
.katex .mop,
.katex .minner,
.katex .mrel,
.katex .mbin {
  color: inherit !important;
}

/* Custom scrollbar for wide math equations */
.cortex-math-display::-webkit-scrollbar,
.katex-display::-webkit-scrollbar {
  height: 5px;
}
.cortex-math-display::-webkit-scrollbar-track,
.katex-display::-webkit-scrollbar-track {
  background: transparent;
}
.cortex-math-display::-webkit-scrollbar-thumb,
.katex-display::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}
.cortex-math-display::-webkit-scrollbar-thumb:hover,
.katex-display::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

@media (max-width: 768px) {
  .hero-preview-window { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .landing-footer .footer-meta { text-align: left; }
}

/* ---------------- Stream Continuation Styles ---------------- */
.continuation-pill-wrap {
  margin: 14px 0 6px;
  display: flex;
  justify-content: flex-start;
}

.continue-generating-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.14), rgba(16, 185, 129, 0.22));
  border: 1px solid rgba(34, 197, 94, 0.4);
  border-radius: 20px;
  color: #4ade80;
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}

.continue-generating-btn:hover {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.24), rgba(16, 185, 129, 0.34));
  border-color: #22c55e;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.25);
  color: #86efac;
}

.continue-generating-btn svg {
  fill: currentColor;
  animation: pulseContinue 1.8s infinite;
}

.continue-action-btn {
  color: #4ade80 !important;
  border-color: rgba(34, 197, 94, 0.3) !important;
  background: rgba(34, 197, 94, 0.08) !important;
}

.continue-action-btn:hover {
  color: #86efac !important;
  border-color: #22c55e !important;
  background: rgba(34, 197, 94, 0.18) !important;
}

@keyframes pulseContinue {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.92); }
}

/* ==========================================================================
   User Attachment Cards & ChatGPT-Style Image Previews
   ========================================================================== */

.user-attachment-card {
  margin-bottom: 8px;
  cursor: pointer;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  user-select: none;
}

.user-attachment-card.image-card {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.4);
  background: #11151a;
  max-width: min(340px, 100%);
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.22s ease,
              border-color 0.22s ease;
}

.user-attachment-card.image-card:hover {
  transform: translateY(-2px);
  border-color: rgba(34, 197, 94, 0.45);
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.55), 0 0 20px rgba(34, 197, 94, 0.15);
}

.user-thumb-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #080a0d;
  max-height: 190px;
  overflow: hidden;
  min-height: 80px;
  width: 100%;
}

.user-msg-thumb {
  display: block;
  width: 100%;
  height: auto;
  max-height: 190px;
  object-fit: cover;
  transition: transform 0.25s ease, filter 0.2s ease;
}

.user-attachment-card:hover .user-msg-thumb {
  transform: scale(1.025);
  filter: brightness(1.06);
}

.user-thumb-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  opacity: 0;
  transition: opacity 0.2s ease;
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.user-thumb-zoom-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-attachment-card:hover .user-thumb-overlay {
  opacity: 1;
}

.user-attachment-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 12px;
  background: rgba(17, 21, 26, 0.96);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 12px;
  color: var(--muted);
  width: 100%;
  box-sizing: border-box;
}

.user-attachment-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 210px;
  color: #e2e8f0;
  font-weight: 500;
}

.user-attachment-size {
  font-size: 11px;
  color: #94a3b8;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.07);
  padding: 1px 6px;
  border-radius: 6px;
}

/* Light Mode Overrides for Attachment Card */
[data-theme="light"] .user-attachment-card.image-card,
body.light-theme .user-attachment-card.image-card {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08) !important;
}

[data-theme="light"] .user-thumb-wrapper,
body.light-theme .user-thumb-wrapper {
  background: #f1f5f9 !important;
}

[data-theme="light"] .user-attachment-meta,
body.light-theme .user-attachment-meta {
  background: #f8fafc !important;
  border-top-color: #e2e8f0 !important;
}

[data-theme="light"] .user-attachment-name,
body.light-theme .user-attachment-name {
  color: #1e293b !important;
}

[data-theme="light"] .user-attachment-size,
body.light-theme .user-attachment-size {
  background: #e2e8f0 !important;
  color: #64748b !important;
}

/* Document Attachment Card in Chat */
.user-attachment-card.doc-card {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: all 0.2s ease;
}

.user-attachment-card.doc-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(34, 197, 94, 0.4);
}

.doc-card-icon {
  font-size: 18px;
  display: flex;
  align-items: center;
}

.doc-card-details {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.doc-card-name {
  font-size: 13px;
  font-weight: 500;
  color: #f1f5f9;
}

.doc-card-meta {
  font-size: 11px;
  color: var(--muted);
}

/* Mini thumbnail in composer chip */
.attachment-thumb-mini {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* ==========================================================================
   Full-Screen Interactive Image Lightbox Modal
   ========================================================================== */

.image-lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(4, 6, 9, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.image-lightbox-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.image-lightbox-header {
  height: 56px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(13, 16, 21, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  flex-shrink: 0;
  z-index: 10;
}

.image-lightbox-info {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #f8fafc;
  font-size: 14px;
  font-weight: 600;
  max-width: 50%;
  overflow: hidden;
}

.image-lightbox-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.image-lightbox-filename {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.image-lightbox-size {
  font-size: 12px;
  font-weight: 400;
  color: #94a3b8;
  padding: 2px 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  flex-shrink: 0;
}

.image-lightbox-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lightbox-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #e2e8f0;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  font-family: inherit;
}

.lightbox-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

.lightbox-btn:active {
  transform: translateY(0);
}

.lightbox-zoom-level {
  font-size: 12.5px;
  font-family: var(--font-mono, monospace);
  color: #cbd5e1;
  min-width: 46px;
  text-align: center;
  user-select: none;
}

.lightbox-download-link:hover {
  background: rgba(34, 197, 94, 0.2);
  border-color: rgba(34, 197, 94, 0.4);
  color: #86efac;
}

.lightbox-close-btn {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
  color: #fca5a5;
  font-size: 15px;
  font-weight: 600;
  margin-left: 6px;
}

.lightbox-close-btn:hover {
  background: rgba(239, 68, 68, 0.35);
  border-color: rgba(239, 68, 68, 0.6);
  color: #ffffff;
}

.image-lightbox-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 30px;
  position: relative;
  user-select: none;
  cursor: grab;
}

.image-lightbox-body:active {
  cursor: grabbing;
}

.image-lightbox-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: 100%;
  transition: transform 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: center center;
}

#lightboxImage {
  display: block;
  max-width: 90vw;
  max-height: calc(90vh - 70px);
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(0, 0, 0, 0.6);
  cursor: zoom-in;
  transition: box-shadow 0.2s ease;
}

#lightboxImage.zoomed {
  cursor: zoom-out;
}

/* Light Theme overrides for Lightbox */
[data-theme="light"] .image-lightbox-overlay,
body.light-theme .image-lightbox-overlay {
  background: rgba(241, 245, 249, 0.96) !important;
}

[data-theme="light"] .image-lightbox-header,
body.light-theme .image-lightbox-header {
  background: rgba(255, 255, 255, 0.9) !important;
  border-bottom-color: #cbd5e1 !important;
}

[data-theme="light"] .image-lightbox-info,
body.light-theme .image-lightbox-info {
  color: #0f172a !important;
}

[data-theme="light"] .image-lightbox-size,
body.light-theme .image-lightbox-size {
  background: #e2e8f0 !important;
  color: #475569 !important;
}

[data-theme="light"] .lightbox-btn,
body.light-theme .lightbox-btn {
  background: #f1f5f9 !important;
  border-color: #cbd5e1 !important;
  color: #334155 !important;
}

[data-theme="light"] .lightbox-btn:hover,
body.light-theme .lightbox-btn:hover {
  background: #e2e8f0 !important;
  color: #0f172a !important;
}

[data-theme="light"] .lightbox-zoom-level,
body.light-theme .lightbox-zoom-level {
  color: #475569 !important;
}

[data-theme="light"] #lightboxImage,
body.light-theme #lightboxImage {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18), 0 0 30px rgba(0, 0, 0, 0.1) !important;
}

/* ==========================================================================
   Phase 2: Persistent Agentic Memory & User Personalization Styles
   ========================================================================== */

/* Topbar Memory Button & Badge */
.topbar-action-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  background: rgba(168, 85, 247, 0.08);
  border: 1px solid rgba(168, 85, 247, 0.22);
  border-radius: 8px;
  color: #c084fc;
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.topbar-action-pill-btn:hover {
  background: rgba(168, 85, 247, 0.16);
  border-color: rgba(168, 85, 247, 0.45);
  color: #d8b4fe;
  transform: translateY(-1px);
}

.topbar-action-pill-btn:active {
  transform: translateY(0);
}

.memory-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: rgba(168, 85, 247, 0.25);
  color: #e9d5ff;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
}

/* Memory Modal Overlay & Card */
.memory-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  animation: modalFadeIn 0.2s ease-out;
}

.memory-modal-card {
  position: relative;
  width: 100%;
  max-width: 660px;
  max-height: 90vh;
  background: #0d1117;
  border: 1px solid rgba(168, 85, 247, 0.25);
  border-radius: 16px;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7), 0 0 35px rgba(168, 85, 247, 0.1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalSlideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.memory-icon-bg {
  background: rgba(168, 85, 247, 0.12) !important;
  color: #c084fc !important;
  border: 1px solid rgba(168, 85, 247, 0.25);
}

/* Memory Tabs */
.memory-tabs {
  display: flex;
  gap: 8px;
  padding: 0 24px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.memory-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 9px;
  color: #94a3b8;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s ease;
}

.memory-tab-btn:hover {
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.04);
}

.memory-tab-btn.active {
  color: #f1f5f9;
  background: rgba(168, 85, 247, 0.12);
  border-color: rgba(168, 85, 247, 0.3);
}

.memory-tab-btn .tab-pill {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(168, 85, 247, 0.2);
  color: #c084fc;
}

/* Tab Panels */
.memory-tab-panel {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Add Memory Bar */
.memory-add-bar {
  display: flex;
  gap: 8px;
  align-items: center;
  background: rgba(255, 255, 255, 0.03);
  padding: 6px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.memory-add-bar input {
  flex: 1;
  background: transparent;
  border: none;
  color: #f8fafc;
  font-size: 13.5px;
  padding: 8px 12px;
  outline: none;
  font-family: inherit;
}

.memory-add-bar input::placeholder {
  color: #64748b;
}

.memory-cat-select {
  background: #161b22;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: #cbd5e1;
  font-size: 12.5px;
  padding: 7px 10px;
  outline: none;
  cursor: pointer;
}

.btn-memory-add {
  background: #9333ea;
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-memory-add:hover {
  background: #a855f7;
  transform: translateY(-1px);
}

/* Memory List */
.memory-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 4px;
}

.memory-list-title {
  font-size: 12.5px;
  font-weight: 600;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-clear-memories {
  background: transparent;
  border: none;
  color: #ef4444;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.btn-clear-memories:hover {
  background: rgba(239, 68, 68, 0.12);
}

.memories-list-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 380px;
  overflow-y: auto;
  padding-right: 4px;
}

.memory-item-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  padding: 12px 14px;
  transition: all 0.15s ease;
}

.memory-item-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(168, 85, 247, 0.25);
}

.memory-card-main {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.memory-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.memory-badge {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.memory-badge.cat-preference {
  background: rgba(168, 85, 247, 0.18);
  color: #d8b4fe;
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.memory-badge.cat-tech {
  background: rgba(59, 130, 246, 0.18);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.memory-badge.cat-personal {
  background: rgba(34, 197, 94, 0.18);
  color: #86efac;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.memory-badge.cat-project {
  background: rgba(245, 158, 11, 0.18);
  color: #fcd34d;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.memory-badge.cat-rule {
  background: rgba(244, 63, 94, 0.18);
  color: #fda4af;
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.memory-card-time {
  font-size: 11px;
  color: #64748b;
}

.memory-card-text {
  font-size: 13.5px;
  line-height: 1.5;
  color: #e2e8f0;
  word-break: break-word;
}

.btn-delete-memory {
  background: transparent;
  border: none;
  color: #64748b;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0.7;
  transition: all 0.15s ease;
}

.btn-delete-memory:hover {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  opacity: 1;
}

.memory-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  text-align: center;
  color: #64748b;
  gap: 12px;
}

.memory-empty-state svg {
  stroke: #475569;
}

.memory-empty-state p {
  font-size: 13.5px;
  max-width: 320px;
  line-height: 1.5;
}

/* Custom Instructions Panel */
.instructions-guide {
  background: rgba(168, 85, 247, 0.08);
  border: 1px solid rgba(168, 85, 247, 0.2);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.5;
  color: #d8b4fe;
}

.instructions-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.instructions-group label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13.5px;
  color: #f1f5f9;
}

.instructions-group label .sublabel {
  font-size: 12px;
  color: #94a3b8;
  font-weight: 400;
}

.instructions-group textarea {
  width: 100%;
  background: #161b22;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: #f8fafc;
  font-family: inherit;
  font-size: 13.5px;
  line-height: 1.6;
  padding: 12px 14px;
  resize: vertical;
  min-height: 140px;
  outline: none;
  transition: border-color 0.15s ease;
}

.instructions-group textarea:focus {
  border-color: #a855f7;
  box-shadow: 0 0 0 2px rgba(168, 85, 247, 0.2);
}

.instructions-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 4px;
}

.btn-save-instructions {
  background: #9333ea;
  color: #ffffff;
  border: none;
  border-radius: 9px;
  padding: 9px 20px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-save-instructions:hover {
  background: #a855f7;
  transform: translateY(-1px);
}

.instructions-status-text {
  font-size: 13px;
  color: #22c55e;
  font-weight: 500;
  animation: fadeIn 0.2s ease-in;
}

/* Light Theme Overrides for Phase 2 */
[data-theme="light"] .topbar-action-pill-btn,
body.light-theme .topbar-action-pill-btn {
  background: rgba(147, 51, 234, 0.08);
  border-color: rgba(147, 51, 234, 0.25);
  color: #7e22ce;
}

[data-theme="light"] .topbar-action-pill-btn:hover,
body.light-theme .topbar-action-pill-btn:hover {
  background: rgba(147, 51, 234, 0.14);
  color: #6b21a8;
}

[data-theme="light"] .memory-modal-card,
body.light-theme .memory-modal-card {
  background: #ffffff;
  border-color: rgba(147, 51, 234, 0.25);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .memory-tabs,
body.light-theme .memory-tabs {
  border-bottom-color: #e2e8f0;
}

[data-theme="light"] .memory-tab-btn,
body.light-theme .memory-tab-btn {
  color: #64748b;
}

[data-theme="light"] .memory-tab-btn.active,
body.light-theme .memory-tab-btn.active {
  color: #7e22ce;
  background: rgba(147, 51, 234, 0.1);
  border-color: rgba(147, 51, 234, 0.3);
}

[data-theme="light"] .memory-add-bar,
body.light-theme .memory-add-bar {
  background: #f8fafc;
  border-color: #e2e8f0;
}

[data-theme="light"] .memory-add-bar input,
body.light-theme .memory-add-bar input {
  color: #0f172a;
}

[data-theme="light"] .memory-cat-select,
body.light-theme .memory-cat-select {
  background: #ffffff;
  border-color: #cbd5e1;
  color: #334155;
}

[data-theme="light"] .memory-item-card,
body.light-theme .memory-item-card {
  background: #f8fafc;
  border-color: #e2e8f0;
}

[data-theme="light"] .memory-item-card:hover,
body.light-theme .memory-item-card:hover {
  background: #f1f5f9;
  border-color: rgba(147, 51, 234, 0.3);
}

[data-theme="light"] .memory-card-text,
body.light-theme .memory-card-text {
  color: #1e293b;
}

[data-theme="light"] .instructions-group textarea,
body.light-theme .instructions-group textarea {
  background: #ffffff;
  border-color: #cbd5e1;
  color: #0f172a;
}

[data-theme="light"] .instructions-group label,
body.light-theme .instructions-group label {
  color: #0f172a;
}

/* ==========================================================================
   Phase 3: Python Code Execution Sandbox & Live Terminal Drawer
   ========================================================================== */

/* "▶ Run" Button on Python Code Headers */
.code-run-python-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 6px;
  color: #4ade80;
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.code-run-python-btn:hover {
  background: rgba(34, 197, 94, 0.22);
  border-color: rgba(34, 197, 94, 0.6);
  color: #86efac;
  transform: translateY(-1px);
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.2);
}

.code-run-python-btn:active {
  transform: translateY(0);
}

.code-run-python-btn.is-running {
  background: rgba(234, 179, 8, 0.15);
  border-color: rgba(234, 179, 8, 0.4);
  color: #fde047;
  pointer-events: none;
}

.code-run-python-btn .run-spinner {
  width: 11px;
  height: 11px;
  border: 2px solid rgba(253, 224, 71, 0.3);
  border-top-color: #fde047;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* Interactive Python Terminal Drawer attached below code block */
.python-exec-output {
  margin-top: -1px;
  background: #080b0f;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
  overflow: hidden;
  animation: modalFadeIn 0.2s ease-out;
}

.exec-output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.exec-output-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.exec-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 7px;
  border-radius: 4px;
}

.exec-status-badge.status-ok {
  background: rgba(34, 197, 94, 0.15);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.exec-status-badge.status-err {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.exec-time {
  font-size: 11.5px;
  color: #94a3b8;
  font-family: var(--font-mono, monospace);
}

.exec-header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.exec-clear-btn {
  background: transparent;
  border: none;
  color: #64748b;
  font-size: 11.5px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.15s ease;
}

.exec-clear-btn:hover {
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.06);
}

/* Console Streams */
.exec-stdout,
.exec-stderr {
  margin: 0;
  padding: 12px 16px;
  font-family: var(--font-mono, 'JetBrains Mono', Consolas, monospace);
  font-size: 12.5px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 280px;
  overflow-y: auto;
}

.exec-stdout {
  color: #38bdf8;
  background: transparent;
}

.exec-stderr {
  color: #fca5a5;
  background: rgba(239, 68, 68, 0.04);
  border-top: 1px solid rgba(239, 68, 68, 0.1);
}

/* Generated Matplotlib Figures */
.exec-figures {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.015);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.exec-plot-card {
  position: relative;
  background: #0f141c;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.exec-plot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 11.5px;
  color: #94a3b8;
  font-weight: 500;
}

.exec-plot-img-wrap {
  padding: 10px;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-in;
}

.exec-plot-img-wrap img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  transition: transform 0.2s ease;
}

.exec-plot-img-wrap:hover img {
  transform: scale(1.01);
}

.exec-plot-dl-btn,
.chat-plot-dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 11.5px;
  font-weight: 500;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: 6px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.18s ease;
}

.exec-plot-dl-btn:hover,
.chat-plot-dl-btn:hover {
  background: rgba(56, 189, 248, 0.2);
  border-color: rgba(56, 189, 248, 0.45);
  color: #7dd3fc;
}

.chat-plot-card {
  position: relative;
  margin: 14px 0;
  background: #0f141c;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  max-width: 100%;
}

.chat-plot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 12px;
  color: #94a3b8;
  font-weight: 500;
}

.chat-plot-label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #e2e8f0;
  font-weight: 600;
}

.chat-plot-img-wrap {
  padding: 12px;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-in;
}

.chat-plot-img-wrap img,
.chat-plot-img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  display: block;
  transition: transform 0.2s ease;
}

.chat-plot-img-wrap:hover img {
  transform: scale(1.008);
}

/* Light Theme Overrides for Phase 3 */
[data-theme="light"] .code-run-python-btn,
body.light-theme .code-run-python-btn {
  background: rgba(22, 163, 74, 0.1);
  border-color: rgba(22, 163, 74, 0.3);
  color: #15803d;
}

[data-theme="light"] .code-run-python-btn:hover,
body.light-theme .code-run-python-btn:hover {
  background: rgba(22, 163, 74, 0.18);
  color: #166534;
}

[data-theme="light"] .python-exec-output,
body.light-theme .python-exec-output {
  background: #f8fafc;
  border-color: #e2e8f0;
}

[data-theme="light"] .exec-output-header,
body.light-theme .exec-output-header {
  background: #f1f5f9;
  border-bottom-color: #e2e8f0;
}

[data-theme="light"] .exec-stdout,
body.light-theme .exec-stdout {
  color: #0369a1;
}

[data-theme="light"] .exec-stderr,
body.light-theme .exec-stderr {
  background: rgba(239, 68, 68, 0.05);
  color: #b91c1c;
}

[data-theme="light"] .exec-plot-card,
body.light-theme .exec-plot-card,
[data-theme="light"] .chat-plot-card,
body.light-theme .chat-plot-card {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .chat-plot-header,
body.light-theme .chat-plot-header {
  background: #f8fafc;
  border-bottom-color: #e2e8f0;
}

[data-theme="light"] .chat-plot-label,
body.light-theme .chat-plot-label {
  color: #0f172a;
}

/* ---------------- Phase 4: Message Actions, Feedback & Branching ---------------- */

.icon-btn.thumb-up:hover {
  color: var(--success);
}
.icon-btn.thumb-up.active {
  color: var(--success);
  background: rgba(34, 197, 94, 0.14);
  border-color: rgba(34, 197, 94, 0.35);
}

.icon-btn.thumb-down:hover {
  color: #ef4444;
}
.icon-btn.thumb-down.active {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.14);
  border-color: rgba(239, 68, 68, 0.35);
}

.icon-btn.branch-btn:hover {
  color: #a855f7;
  border-color: rgba(168, 85, 247, 0.3);
}

.user-action-btn.user-branch-btn:hover {
  color: #a855f7;
}

/* Numbered reference citations (Perplexity/Claude-style) */
.citation-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 17px;
  height: 17px;
  padding: 0 5px;
  margin: 0 2px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
  vertical-align: super;
  background: rgba(34, 197, 94, 0.12);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.32);
  border-radius: 9px;
  text-decoration: none;
  transition: all 0.15s ease;
}
.citation-pill:hover {
  background: #22c55e;
  color: #0d0f12;
  border-color: #22c55e;
  transform: translateY(-1px);
}

[data-theme="light"] .citation-pill,
body.light-theme .citation-pill {
  background: rgba(22, 163, 74, 0.1);
  color: #16a34a;
  border-color: rgba(22, 163, 74, 0.3);
}
[data-theme="light"] .citation-pill:hover,
body.light-theme .citation-pill:hover {
  background: #16a34a;
  color: #ffffff;
  border-color: #16a34a;
}

/* Dynamic floating toast notifications */
.cortex-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(18, 22, 28, 0.94);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 9999;
}
.cortex-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

[data-theme="light"] .cortex-toast,
body.light-theme .cortex-toast {
  background: rgba(255, 255, 255, 0.96);
  border-color: #cbd5e1;
  color: #0f172a;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
}

/* ChatGPT-Style Project Workspaces Sidebar */
.sidebar-projects-section {
  padding: 8px 10px 10px;
  border-bottom: 1px solid var(--border);
}

.sidebar-projects-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s ease;
}

.sidebar-projects-header:hover {
  background: rgba(255, 255, 255, 0.04);
}

[data-theme="light"] .sidebar-projects-header:hover {
  background: rgba(0, 0, 0, 0.04);
}

.sidebar-projects-title-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}

.sidebar-projects-title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.sidebar-projects-header:hover .sidebar-projects-title {
  color: var(--text);
}

.projects-chevron {
  color: var(--muted);
  transition: transform 0.2s ease;
}

.sidebar-projects-section.is-collapsed .projects-chevron {
  transform: rotate(-90deg);
}

.sidebar-projects-section.is-collapsed .projects-tree-list {
  display: none;
}

.create-project-mini-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  width: 22px;
  height: 22px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.create-project-mini-btn:hover {
  background: var(--surface-hover);
  color: var(--accent);
  border-color: var(--accent);
  transform: scale(1.06);
}

.projects-tree-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 4px;
}

.project-tree-item {
  display: flex;
  flex-direction: column;
  border-radius: 8px;
  transition: background 0.15s ease;
}

.project-item-row,
.project-tree-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text);
  font-size: 13px;
  transition: background 0.15s ease, color 0.15s ease;
  user-select: none;
}

.project-item-row:hover,
.project-tree-row:hover {
  background: rgba(255, 255, 255, 0.06);
}

[data-theme="light"] .project-item-row:hover,
[data-theme="light"] .project-tree-row:hover {
  background: rgba(0, 0, 0, 0.05);
}

.project-tree-item.active .project-item-row,
.project-tree-item.active .project-tree-row {
  background: rgba(34, 197, 94, 0.12);
  color: #4ade80;
  font-weight: 600;
}

.project-item-left,
.project-title-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  flex: 1;
}

.project-folder-chevron {
  color: var(--muted);
  transition: transform 0.18s ease;
  flex-shrink: 0;
}

.project-item-icon,
.project-folder-icon {
  font-size: 14px;
  flex-shrink: 0;
  line-height: 1;
}

.project-item-name,
.project-tree-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 13px;
}

.project-item-pin-badge,
.project-pinned-badge {
  font-size: 11px;
  opacity: 0.8;
  margin-left: 2px;
}

.project-item-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.project-item-row:hover .project-item-actions,
.project-tree-row:hover .project-item-actions,
.project-tree-item.menu-open .project-item-actions {
  opacity: 1;
}

.project-quick-edit-btn,
.project-menu-trigger,
.project-menu-btn {
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  padding: 4px 5px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
}

.project-quick-edit-btn:hover,
.project-menu-trigger:hover,
.project-menu-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
}

[data-theme="light"] .project-quick-edit-btn:hover,
[data-theme="light"] .project-menu-trigger:hover,
[data-theme="light"] .project-menu-btn:hover {
  background: rgba(0, 0, 0, 0.08);
}

/* Indented nested chats under active project (Image 3 & 4) */
.project-nested-chats {
  margin-left: 20px;
  padding-left: 10px;
  border-left: 1.5px solid rgba(255, 255, 255, 0.1);
  margin-top: 2px;
  margin-bottom: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

[data-theme="light"] .project-nested-chats {
  border-left-color: rgba(0, 0, 0, 0.1);
}

.project-nested-chat-item {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 8px;
  font-size: 12.5px;
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: all 0.15s ease;
}

.project-nested-chat-item:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

[data-theme="light"] .project-nested-chat-item:hover {
  background: rgba(0, 0, 0, 0.04);
}

.project-nested-chat-item.active {
  color: #4ade80;
  font-weight: 500;
  background: rgba(34, 197, 94, 0.08);
}

/* ChatGPT-Style Empty State: "No project chats" (Image 4) */
.project-empty-chats {
  padding: 5px 8px;
  font-size: 12px;
  color: var(--muted);
  opacity: 0.65;
  font-style: italic;
  user-select: none;
}

/* ChatGPT-Style Mini New Chat in Project */
.project-nested-new-chat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  color: var(--muted);
  font-size: 11.5px;
  padding: 4px 8px;
  margin-top: 4px;
  cursor: pointer;
  width: fit-content;
  transition: all 0.15s ease;
}

.project-nested-new-chat:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.3);
}

[data-theme="light"] .project-nested-new-chat {
  border-color: rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .project-nested-new-chat:hover {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.3);
}

/* Floating ChatGPT-Style Project Context Menu (Image 3) */
.project-context-menu {
  position: fixed;
  z-index: 10000;
  background: #181c22;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 6px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.05);
  min-width: 185px;
  backdrop-filter: blur(16px);
  animation: fadeIn 0.12s ease-out;
}

[data-theme="light"] .project-context-menu {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15);
}

.project-ctx-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 12px;
  border-radius: 8px;
  border: 0;
  background: transparent;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s ease, color 0.15s ease;
}

.project-ctx-item:hover {
  background: rgba(255, 255, 255, 0.08);
}

[data-theme="light"] .project-ctx-item:hover {
  background: rgba(0, 0, 0, 0.05);
}

.project-ctx-item.danger {
  color: #f87171;
}

.project-ctx-item.danger:hover {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

.project-ctx-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 4px 0;
}

[data-theme="light"] .project-ctx-divider {
  background: rgba(0, 0, 0, 0.08);
}

/* Project Workspace Modal */
.project-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1001;
  padding: 20px;
  animation: modalFadeIn 0.2s ease-out;
}
.project-modal-card {
  position: relative;
  width: 100%;
  max-width: 540px;
  background: #0d1117;
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 16px;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7), 0 0 35px rgba(34, 197, 94, 0.1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalSlideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-theme="light"] .project-modal-card,
body.light-theme .project-modal-card {
  background: #ffffff;
  border-color: rgba(34, 197, 94, 0.4);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}
.project-modal-header {
  padding: 20px 24px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.project-modal-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.project-modal-body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.project-modal-footer {
  padding: 14px 24px;
  background: rgba(0, 0, 0, 0.2);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}
.project-input-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.project-text-input,
.project-textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  color: var(--text);
  font-family: inherit;
  font-size: 13.5px;
  outline: none;
  transition: border-color 0.15s ease;
}
.project-text-input:focus,
.project-textarea:focus {
  border-color: var(--accent);
}
[data-theme="light"] .project-text-input,
[data-theme="light"] .project-textarea,
body.light-theme .project-text-input,
body.light-theme .project-textarea {
  background: #f8fafc;
  border-color: #cbd5e1;
  color: #0f172a;
}

/* ==================== CORTEX 3.1 UX & SUITE ENHANCEMENTS ==================== */

/* 1. Single-line Hero Greeting & Empty State Logo */
.empty-hero-line {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 100%;
  max-width: 840px;
  padding: 12px 16px;
  margin: 0 auto 20px;
}

.empty-greeting-single {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: clamp(22px, 3.2vw, 32px);
  margin: 0;
  letter-spacing: -0.02em;
  color: var(--text, #f8fafc);
  text-align: center;
  white-space: normal;
}

@media (max-width: 640px) {
  .empty-hero-line {
    white-space: normal;
    text-align: left;
  }
  .empty-greeting-single {
    white-space: normal;
    font-size: 17px;
  }
}

/* 2. Topbar Usage Pill */
.topbar-usage-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: #4ade80;
  letter-spacing: 0.02em;
  cursor: default;
  transition: all 0.2s ease;
}
.topbar-usage-pill:hover {
  background: rgba(34, 197, 94, 0.14);
  border-color: rgba(34, 197, 94, 0.4);
}
.topbar-usage-pill svg {
  color: #22c55e;
  filter: drop-shadow(0 0 4px rgba(34, 197, 94, 0.4));
}
.usage-progress-bar {
  width: 42px;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
}
.usage-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #22c55e, #4ade80);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* Guide Button in Topbar */
.guide-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s ease;
}
.guide-btn:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--accent);
  color: var(--accent);
}

/* 3. Sidebar Artifacts Button */
.sidebar-artifacts-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  margin-top: 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 9px;
  color: var(--text);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s ease;
}
.sidebar-artifacts-btn:hover,
.sidebar-artifacts-btn.active {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.35);
  color: #4ade80;
}
.sidebar-count-badge {
  margin-left: auto;
  padding: 1px 7px;
  font-size: 11px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  color: var(--muted);
}
.sidebar-artifacts-btn:hover .sidebar-count-badge,
.sidebar-artifacts-btn.active .sidebar-count-badge {
  background: rgba(34, 197, 94, 0.25);
  color: #4ade80;
}

/* 4. Artifacts Library View */
.artifacts-view {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  height: calc(100vh - 65px);
  overflow-y: auto;
  padding: 32px 40px 48px;
  background: var(--bg-main, #0d1117);
  box-sizing: border-box;
}
.artifacts-view-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.artifacts-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.artifacts-title-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(34, 197, 94, 0.14);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.25);
}
.artifacts-main-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  margin: 0;
  color: var(--text);
}
.artifacts-count-badge {
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(34, 197, 94, 0.12);
  color: #4ade80;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid rgba(34, 197, 94, 0.25);
}
.artifacts-subtitle {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}
.artifacts-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.artifacts-search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 7px 12px;
  width: 260px;
}
.artifacts-search-box input {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 13.5px;
  width: 100%;
  outline: none;
}
.artifacts-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}
.artifacts-back-btn:hover {
  background: rgba(34, 197, 94, 0.14);
  border-color: rgba(34, 197, 94, 0.4);
  color: #4ade80;
}

/* Artifacts Grid & Cards */
.artifacts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
}
.artifact-card {
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}
.artifact-card:hover {
  border-color: rgba(34, 197, 94, 0.4);
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), 0 0 16px rgba(34, 197, 94, 0.08);
}
.artifact-card-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}
.artifact-card-icon {
  font-size: 22px;
  line-height: 1;
  padding: 6px;
  background: rgba(34, 197, 94, 0.1);
  border-radius: 8px;
  border: 1px solid rgba(34, 197, 94, 0.2);
}
.artifact-card-meta {
  flex: 1;
  min-width: 0;
}
.artifact-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.artifact-card-chat {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.artifact-card-preview {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.2);
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  min-height: 54px;
}
.artifact-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.artifact-card-date {
  font-size: 11.5px;
  color: var(--muted);
}
.artifact-card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.artifact-btn-preview {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 7px;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #4ade80;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}
.artifact-btn-preview:hover {
  background: rgba(34, 197, 94, 0.25);
  border-color: #4ade80;
}
.artifact-btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s ease;
}
.artifact-btn-download:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}
.artifact-btn-delete {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: #f87171;
  cursor: pointer;
  transition: all 0.15s ease;
}
.artifact-btn-delete:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: #ef4444;
  color: #ef4444;
  transform: scale(1.04);
}
.artifacts-empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}
.artifacts-empty-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

/* 5. Guide Drawer */
.guide-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(540px, 92vw);
  height: 100vh;
  background: var(--bg-surface, #11161d);
  border-left: 1px solid var(--border);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
  z-index: 1050;
  display: flex;
  flex-direction: column;
  animation: slideInRight 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}
.guide-drawer-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 24px 24px 16px;
  border-bottom: 1px solid var(--border);
}
.guide-header-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border-radius: 12px;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.3);
  font-size: 11px;
  font-weight: 700;
  color: #4ade80;
  margin-bottom: 6px;
}
.guide-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 6px #22c55e;
}
.guide-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 4px;
}
.guide-subtitle {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}
.guide-close-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--muted);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.15s ease;
}
.guide-close-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
}

/* Guide Navigation Tabs */
.guide-nav-tabs {
  display: flex;
  overflow-x: auto;
  gap: 6px;
  padding: 10px 20px;
  background: rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid var(--border);
  scrollbar-width: none;
}
.guide-nav-tabs::-webkit-scrollbar {
  display: none;
}
.guide-tab-btn {
  padding: 6px 12px;
  border-radius: 7px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.15s ease;
}
.guide-tab-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}
.guide-tab-btn.active {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.35);
  color: #4ade80;
  font-weight: 600;
}

/* Guide Content Panes */
.guide-content-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}
.guide-tab-pane {
  display: none;
  flex-direction: column;
  gap: 18px;
}
.guide-tab-pane.active {
  display: flex;
}
.guide-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
}
.guide-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px;
}
.guide-card h4 {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 10px;
}
.guide-card p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.55;
  margin: 0 0 10px;
}
.guide-card p:last-child {
  margin-bottom: 0;
}
.guide-shortcut-table {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  padding: 4px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.shortcut-row kbd {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 2px 7px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: #4ade80;
}
.guide-bullet-list {
  margin: 0;
  padding-left: 20px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}
.guide-bullet-list li {
  margin-bottom: 6px;
}
.guide-model-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  position: relative;
}
.model-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  margin-bottom: 8px;
}
.model-badge.super { background: rgba(34, 197, 94, 0.2); color: #4ade80; border: 1px solid rgba(34, 197, 94, 0.3); }
.model-badge.ultra { background: rgba(168, 85, 247, 0.2); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.model-badge.deep { background: rgba(59, 130, 246, 0.2); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.3); }
.model-badge.omni { background: rgba(234, 179, 8, 0.2); color: #fde047; border: 1px solid rgba(234, 179, 8, 0.3); }
.model-badge.fast { background: rgba(236, 72, 153, 0.2); color: #f472b6; border: 1px solid rgba(236, 72, 153, 0.3); }

.guide-model-card h4 {
  margin: 0 0 4px;
  font-size: 15px;
  color: var(--text);
}
.model-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 8px;
}
.guide-section-header {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: #ecedef;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 20px 0 10px 0;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 6px;
}
.guide-prompt-template {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.guide-prompt-template:hover {
  border-color: rgba(34, 197, 94, 0.35);
  background: rgba(0, 0, 0, 0.35);
}
.template-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 8px;
  flex-wrap: wrap;
}
.template-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1;
}
.template-cat-tag {
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.template-cat-tag.cat-code { background: rgba(56, 189, 248, 0.14); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.3); }
.template-cat-tag.cat-data { background: rgba(168, 85, 247, 0.14); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.template-cat-tag.cat-acad { background: rgba(251, 146, 60, 0.14); color: #fb923c; border: 1px solid rgba(251, 146, 60, 0.3); }
.template-cat-tag.cat-research { background: rgba(45, 212, 191, 0.14); color: #2dd4bf; border: 1px solid rgba(45, 212, 191, 0.3); }
.template-cat-tag.cat-biz { background: rgba(234, 179, 8, 0.14); color: #facc15; border: 1px solid rgba(234, 179, 8, 0.3); }
.template-cat-tag.cat-reason { background: rgba(34, 197, 94, 0.14); color: #4ade80; border: 1px solid rgba(34, 197, 94, 0.3); }

.template-title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.template-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.template-use-btn,
.template-copy-btn {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: var(--font-mono);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.template-use-btn {
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.4);
  color: #4ade80;
  font-weight: 600;
}
.template-use-btn:hover {
  background: #22c55e;
  border-color: #22c55e;
  color: #0b0f13;
}
.template-copy-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--muted);
}
.template-copy-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.2);
}
.guide-prompt-template pre {
  margin: 0;
  padding: 8px;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: #cbd5e1;
  white-space: pre-wrap;
  word-break: break-word;
}

/* 6. Onboarding Tour Spotlight & Card */
.tour-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  z-index: 10000;
  pointer-events: auto;
  transition: opacity 0.2s ease;
}
.tour-spotlight {
  position: absolute;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.78), 0 0 24px rgba(34, 197, 94, 0.6);
  border: 2px solid #22c55e;
  border-radius: 10px;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.tour-card {
  position: fixed;
  z-index: 10001;
  width: min(380px, 90vw);
  background: var(--bg-surface, #11161d);
  border: 1px solid rgba(34, 197, 94, 0.4);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 20px rgba(34, 197, 94, 0.2);
  transition: top 0.3s ease, left 0.3s ease, transform 0.3s ease;
}
.tour-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.tour-step-badge {
  font-size: 11.5px;
  font-weight: 700;
  color: #4ade80;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  padding: 2px 9px;
  border-radius: 12px;
}
.tour-close-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 15px;
  cursor: pointer;
}
.tour-close-btn:hover { color: var(--text); }
.tour-card-body {
  margin-bottom: 20px;
}
.tour-card-icon {
  font-size: 28px;
  margin-bottom: 8px;
}
.tour-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 6px;
}
.tour-description {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
}
.tour-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.tour-btn {
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}
.tour-skip-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
}
.tour-skip-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}
.tour-footer-right {
  display: flex;
  gap: 8px;
}
.tour-prev-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text);
}
.tour-prev-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}
.tour-next-btn {
  background: #22c55e;
  border: 1px solid #22c55e;
  color: #052e16;
}
.tour-next-btn:hover {
  background: #4ade80;
  border-color: #4ade80;
}

/* Confetti Fullscreen Canvas */
.confetti-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 99999;
}

/* Celebration Toast */
.celebration-toast {
  position: fixed;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(17, 24, 39, 0.95);
  border: 1.5px solid #22c55e;
  border-radius: 14px;
  padding: 14px 22px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6), 0 0 28px rgba(34, 197, 94, 0.35);
  backdrop-filter: blur(12px);
  z-index: 100000;
  animation: toastPop 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes toastPop {
  from { opacity: 0; transform: translate(-50%, -20px) scale(0.95); }
  to { opacity: 1; transform: translate(-50%, 0) scale(1); }
}
.celebration-toast-icon {
  font-size: 28px;
}
.celebration-toast-content {
  display: flex;
  flex-direction: column;
}
.celebration-toast-title {
  font-size: 15px;
  font-weight: 700;
  color: #4ade80;
}
.celebration-toast-sub {
  font-size: 12.5px;
  color: #cbd5e1;
}

/* Polite Bottom Quota Notification Toast */
.quota-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(17, 24, 39, 0.95);
  border: 1px solid rgba(234, 179, 8, 0.4);
  border-radius: 12px;
  padding: 12px 20px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  z-index: 100000;
  font-size: 13.5px;
  color: #fef08a;
  animation: toastBottom 0.25s ease forwards;
}
@keyframes toastBottom {
  from { opacity: 0; transform: translate(-50%, 15px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* Light Theme Adaptations */
[data-theme="light"] .artifacts-view,
body.light-theme .artifacts-view {
  background: #ffffff;
}
[data-theme="light"] .artifact-card,
body.light-theme .artifact-card {
  background: #f8fafc;
  border-color: #e2e8f0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}
[data-theme="light"] .artifact-card-preview,
body.light-theme .artifact-card-preview {
  background: #f1f5f9;
  border-color: #e2e8f0;
  color: #475569;
}
[data-theme="light"] .guide-drawer,
body.light-theme .guide-drawer {
  background: #ffffff;
  border-color: #e2e8f0;
}
[data-theme="light"] .guide-card,
[data-theme="light"] .guide-model-card,
body.light-theme .guide-card,
body.light-theme .guide-model-card {
  background: #f8fafc;
  border-color: #e2e8f0;
}
[data-theme="light"] .tour-card,
body.light-theme .tour-card {
  background: #ffffff;
}
[data-theme="light"] .celebration-toast,
body.light-theme .celebration-toast {
  background: #ffffff;
  border-color: #22c55e;
  color: #0f172a;
}
[data-theme="light"] .celebration-toast-sub,
body.light-theme .celebration-toast-sub {
  color: #475569;
}
[data-theme="light"] .quota-toast,
body.light-theme .quota-toast {
  background: #ffffff;
  border-color: #eab308;
  color: #854d0e;
}
/* ==================== DESKTOP COLLAPSED ICON RAIL ==================== */
.sidebar-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 60px;
  height: 100%;
  padding: 12px 0;
  box-sizing: border-box;
  background: var(--sidebar-bg);
  z-index: 50;
  overflow: hidden;
}

.sidebar-rail-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.sidebar-rail-spacer {
  flex: 1;
}

.sidebar-rail-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  padding-bottom: 4px;
}

.rail-icon-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.18s ease;
  position: relative;
}

.rail-icon-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.05);
}

[data-theme="light"] .rail-icon-btn:hover {
  background: rgba(0, 0, 0, 0.06);
  color: #0f172a;
  border-color: rgba(0, 0, 0, 0.05);
}

.rail-count-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--primary, #10b981);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  border-radius: 10px;
  padding: 1px 4px;
  min-width: 14px;
  height: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.rail-user-avatar-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 2px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.18s ease, filter 0.18s ease;
}

.rail-user-avatar-btn:hover {
  transform: scale(1.08);
  filter: brightness(1.15);
}

.rail-user-avatar-btn .user-avatar {
  width: 36px;
  height: 36px;
  font-size: 14px;
  display: grid;
  place-items: center;
  border-radius: 50%;
}

/* ==================== PRESET AVATARS ==================== */
.avatar-1, .avatar-preset-circle.avatar-1 {
  background: linear-gradient(135deg, #10b981, #059669) !important;
  color: #ffffff !important;
  box-shadow: 0 2px 10px rgba(16, 185, 129, 0.35);
}

.avatar-2, .avatar-preset-circle.avatar-2 {
  background: linear-gradient(135deg, #8b5cf6, #6d28d9) !important;
  color: #ffffff !important;
  box-shadow: 0 2px 10px rgba(139, 92, 246, 0.35);
}

.avatar-3, .avatar-preset-circle.avatar-3 {
  background: linear-gradient(135deg, #06b6d4, #0284c7) !important;
  color: #ffffff !important;
  box-shadow: 0 2px 10px rgba(6, 182, 212, 0.35);
}

.avatar-4, .avatar-preset-circle.avatar-4 {
  background: linear-gradient(135deg, #f59e0b, #d97706) !important;
  color: #ffffff !important;
  box-shadow: 0 2px 10px rgba(245, 158, 11, 0.35);
}

.avatar-5, .avatar-preset-circle.avatar-5 {
  background: linear-gradient(135deg, #f43f5e, #be123c) !important;
  color: #ffffff !important;
  box-shadow: 0 2px 10px rgba(244, 63, 94, 0.35);
}

.avatar-6, .avatar-preset-circle.avatar-6 {
  background: linear-gradient(135deg, #334155, #0f172a) !important;
  color: #38bdf8 !important;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.settings-avatar-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  margin-top: 10px;
  width: 100%;
  box-sizing: border-box;
}

@media (max-width: 500px) {
  .settings-avatar-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.avatar-preset-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.03);
  border: 1.5px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 8px 3px 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 0;
  box-sizing: border-box;
}

[data-theme="light"] .avatar-preset-btn {
  background: #f8fafc;
  border-color: #e2e8f0;
}

.avatar-preset-btn:hover {
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.06);
}

[data-theme="light"] .avatar-preset-btn:hover {
  border-color: #cbd5e1;
  background: #f1f5f9;
}

.avatar-preset-btn.active {
  border-color: #10b981 !important;
  background: rgba(16, 185, 129, 0.12) !important;
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.25);
}

.avatar-preset-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 600;
  user-select: none;
  flex-shrink: 0;
}

.avatar-preset-name {
  font-size: 10.5px;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.avatar-preset-btn.active .avatar-preset-name {
  color: var(--text);
  font-weight: 600;
}

/* Danger Zone */
.settings-danger-section {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(239, 68, 68, 0.2);
}

.danger-title {
  color: #ef4444 !important;
}

.danger-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: rgba(239, 68, 68, 0.05);
  border: 1px solid rgba(239, 68, 68, 0.22);
  border-radius: 12px;
  margin-top: 10px;
}

.danger-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.danger-name {
  font-size: 13.5px;
  font-weight: 600;
  color: #ef4444;
}

.danger-desc {
  font-size: 12px;
  color: var(--muted-2);
  line-height: 1.4;
}

.btn-danger-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ef4444;
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.18s ease;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.35);
}

.btn-danger-action:hover {
  background: #dc2626;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.45);
}

/* Delete Account Confirmation Modal */
.delete-account-card {
  background: var(--card-bg, #1a1e24);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 16px;
  padding: 24px;
  max-width: 420px;
  width: 90%;
  margin: auto;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7), 0 0 20px rgba(239, 68, 68, 0.15);
  animation: scaleUp 0.18s ease-out;
}

[data-theme="light"] .delete-account-card {
  background: #ffffff;
  border-color: rgba(239, 68, 68, 0.4);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.delete-account-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.12);
  display: grid;
  place-items: center;
  margin: 0 auto 14px;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.delete-account-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.delete-account-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 20px;
}

.delete-account-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.btn-cancel-delete {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-soft);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease;
}

.btn-cancel-delete:hover {
  background: rgba(255, 255, 255, 0.14);
}

.btn-confirm-delete {
  background: #ef4444;
  border: none;
  color: #fff;
  border-radius: 8px;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 10px rgba(239, 68, 68, 0.4);
}

.btn-confirm-delete:hover {
  background: #dc2626;
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.55);
}

/* Rename Chat Modal */
.rename-chat-card {
  border-color: rgba(34, 197, 94, 0.3);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7), 0 0 20px rgba(34, 197, 94, 0.12);
}

[data-theme="light"] .rename-chat-card {
  border-color: rgba(34, 197, 94, 0.4);
}

.rename-chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  text-align: left;
}

.rename-chat-icon-wrap {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(34, 197, 94, 0.12);
  display: grid;
  place-items: center;
  border: 1px solid rgba(34, 197, 94, 0.25);
  flex-shrink: 0;
}

.rename-chat-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

.rename-chat-desc {
  font-size: 13px;
  color: var(--muted);
  text-align: left;
  margin-bottom: 16px;
}

.rename-chat-input-wrap {
  margin-bottom: 20px;
}

.rename-chat-input {
  width: 100%;
  background: var(--input-bg, #111317);
  border: 1px solid var(--border-soft, rgba(255, 255, 255, 0.12));
  color: var(--text, #f3f4f6);
  border-radius: 10px;
  padding: 11px 14px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
  box-sizing: border-box;
}

[data-theme="light"] .rename-chat-input {
  background: #f8fafc;
  color: #0f172a;
  border-color: rgba(0, 0, 0, 0.15);
}

.rename-chat-input:focus {
  border-color: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.btn-confirm-rename {
  background: #22c55e;
  border: none;
  color: #fff;
  border-radius: 8px;
  padding: 9px 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 10px rgba(34, 197, 94, 0.35);
}

.btn-confirm-rename:hover {
  background: #16a34a;
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.5);
}

/* Archived Chats Modal */
.archived-chats-card {
  background: var(--card-bg, #181b20);
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  padding: 24px;
  max-width: 580px;
  width: 92%;
  margin: auto;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.65);
}

[data-theme="light"] .archived-chats-card {
  background: #ffffff;
  border-color: #d4dae2;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.12);
}

.archived-icon-bg {
  background: rgba(99, 102, 241, 0.15) !important;
  color: #818cf8 !important;
}

.archived-search-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 8px 12px;
  margin: 14px 0 12px;
  color: var(--muted);
}

.archived-search-wrap input {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 13px;
  width: 100%;
  outline: none;
}

.archived-chats-list {
  flex: 1;
  overflow-y: auto;
  max-height: 380px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-right: 4px;
}

.archived-chat-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  transition: background 0.15s ease;
}

[data-theme="light"] .archived-chat-row {
  background: #f8fafc;
  border-color: #e2e8f0;
}

.archived-chat-row:hover {
  background: rgba(255, 255, 255, 0.06);
}

.archived-chat-meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow: hidden;
  max-width: 72%;
}

.archived-chat-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.archived-chat-date {
  font-size: 11px;
  color: var(--muted-2);
}

.archived-chat-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-unarchive-chat, .btn-delete-archived-chat {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 9px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  transition: all 0.15s ease;
}

.btn-unarchive-chat:hover {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border-color: rgba(16, 185, 129, 0.3);
}

.btn-delete-archived-chat:hover {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.3);
}

.archived-empty-state {
  padding: 36px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.conv-action-btn.archive-btn:hover {
  color: #818cf8;
  background: rgba(129, 140, 248, 0.15);
}

/* ==========================================================================
   TOPBAR TOGGLE CLEANUP & COLLAPSED SIDEBAR RULES
   ========================================================================== */
@media (min-width: 769px) {
  #toggleSidebarBtn,
  .mobile-only {
    display: none !important;
  }
}

@media (max-width: 768px) {
  .mobile-only {
    display: inline-flex !important;
  }
  .mobile-sidebar-toggle-btn {
    color: var(--muted);
    border: 1px solid var(--border-soft);
    background: rgba(255, 255, 255, 0.04);
    border-radius: 8px;
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
    margin-right: 8px;
  }
  .mobile-sidebar-toggle-btn:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
  }
}

/* ==========================================================================
   ANTIGRAVITY-STYLE HIGH-TECH DARK SPLASH LOADER
   ========================================================================== */
.app-splash-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  z-index: 999999;
  background: #08090d;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", sans-serif;
  overflow: hidden;
  user-select: none;
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.app-splash-loader.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.splash-ambient-glow {
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.14) 0%, rgba(16, 185, 129, 0.06) 40%, transparent 70%);
  filter: blur(55px);
  pointer-events: none;
  animation: splashAmbientBreathe 4s ease-in-out infinite alternate;
}

@keyframes splashAmbientBreathe {
  0% { transform: scale(0.88); opacity: 0.6; }
  100% { transform: scale(1.15); opacity: 1; }
}

.splash-inner {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px;
  animation: splashFadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes splashFadeIn {
  0% { opacity: 0; transform: translateY(12px) scale(0.96); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

.splash-emblem-container {
  position: relative;
  width: 88px;
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.splash-glow-ring {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1.5px solid rgba(34, 197, 94, 0.35);
  box-shadow: 0 0 24px rgba(34, 197, 94, 0.28);
  animation: splashRingPulse 2.8s ease-in-out infinite alternate;
}

@keyframes splashRingPulse {
  0% { transform: scale(0.94); border-color: rgba(34, 197, 94, 0.25); box-shadow: 0 0 16px rgba(34, 197, 94, 0.18); }
  100% { transform: scale(1.08); border-color: rgba(74, 222, 128, 0.6); box-shadow: 0 0 32px rgba(34, 197, 94, 0.45); }
}

.splash-emblem {
  position: relative;
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.18), rgba(6, 78, 59, 0.4));
  border: 1.5px solid rgba(34, 197, 94, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(34, 197, 94, 0.2);
  animation: splashEmblemFloat 3s ease-in-out infinite alternate;
}

@keyframes splashEmblemFloat {
  0% { transform: translateY(0); }
  100% { transform: translateY(-4px); }
}

.splash-brand-text {
  margin-bottom: 24px;
}

.splash-title {
  font-family: 'Space Grotesk', -apple-system, sans-serif;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 3.5px;
  color: #ffffff;
  margin: 0 0 6px;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.8);
}

.splash-title .splash-highlight {
  background: linear-gradient(135deg, #4ade80, #22c55e);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.splash-subtitle {
  font-size: 13px;
  color: #94a3b8;
  letter-spacing: 0.8px;
  margin: 0;
  font-weight: 400;
}

/* 3 Pulsating Dots - Antigravity Style ("bhuk bhak" loading) */
.splash-pulsing-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
  height: 24px;
}

.splash-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.7);
  animation: splashDotPulse 1.2s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
}

.splash-dot.dot-1 {
  animation-delay: 0s;
}

.splash-dot.dot-2 {
  animation-delay: 0.22s;
}

.splash-dot.dot-3 {
  animation-delay: 0.44s;
}

@keyframes splashDotPulse {
  0%, 100% {
    transform: scale(0.7);
    opacity: 0.25;
    box-shadow: 0 0 4px rgba(34, 197, 94, 0.2);
    background: #166534;
  }
  50% {
    transform: scale(1.35);
    opacity: 1;
    box-shadow: 0 0 16px rgba(74, 222, 128, 0.9), 0 0 6px #ffffff;
    background: #4ade80;
  }
}

.splash-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 11.5px;
  color: #64748b;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.3px;
}

.splash-status-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
  animation: statusPillBlink 1.4s ease-in-out infinite;
}

@keyframes statusPillBlink {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; box-shadow: 0 0 12px rgba(74, 222, 128, 0.9); }
}

/* ==========================================================================
   WORKSPACE PRESERVATION & CLOUD SYNC SETTINGS
   ========================================================================== */
.settings-section-header-flex {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.sync-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono, monospace);
  background: rgba(34, 197, 94, 0.12);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.28);
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.sync-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.6);
}

.sync-status-badge.syncing {
  background: rgba(59, 130, 246, 0.12);
  color: #60a5fa;
  border-color: rgba(59, 130, 246, 0.28);
}

.sync-status-badge.syncing .sync-status-dot {
  background: #3b82f6;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.8);
  animation: syncPulseDot 0.8s ease-in-out infinite alternate;
}

@keyframes syncPulseDot {
  0% { transform: scale(0.8); opacity: 0.5; }
  100% { transform: scale(1.3); opacity: 1; }
}

.backup-actions-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
}

.backup-action-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  background: var(--panel-2);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

[data-theme="light"] .backup-action-card {
  background: #f8fafc !important;
  border-color: #e2e8f0 !important;
}

.backup-action-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.backup-action-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.backup-action-desc {
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.4;
}

.btn-backup-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  flex-shrink: 0;
  border: 1px solid transparent;
}

.btn-backup-action.btn-sync-now {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.28);
  color: #4ade80;
}

.btn-backup-action.btn-sync-now:hover {
  background: rgba(34, 197, 94, 0.22);
  border-color: #22c55e;
  color: #ffffff;
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.25);
}

.btn-backup-action.btn-export {
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.28);
  color: #a5b4fc;
}

.btn-backup-action.btn-export:hover {
  background: rgba(99, 102, 241, 0.22);
  border-color: #6366f1;
  color: #ffffff;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.25);
}

.btn-backup-action.btn-import {
  background: rgba(234, 179, 8, 0.12);
  border-color: rgba(234, 179, 8, 0.28);
  color: #fde047;
}

.btn-backup-action.btn-import:hover {
  background: rgba(234, 179, 8, 0.22);
  border-color: #eab308;
  color: #ffffff;
  box-shadow: 0 0 10px rgba(234, 179, 8, 0.25);
}

/* Danger Zone Card & Buttons */
.danger-title {
  color: #ef4444 !important;
}

.danger-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: rgba(239, 68, 68, 0.06);
  border: 1px solid rgba(239, 68, 68, 0.22);
  border-radius: 12px;
}

[data-theme="light"] .danger-card {
  background: rgba(239, 68, 68, 0.05) !important;
  border-color: rgba(239, 68, 68, 0.25) !important;
}

.danger-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.danger-name {
  font-size: 13px;
  font-weight: 600;
  color: #f87171;
}

.danger-desc {
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.4;
}

.btn-danger-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #f87171;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-danger-action:hover {
  background: #ef4444;
  color: #ffffff;
  border-color: #ef4444;
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.4);
}

@media (max-width: 600px) {
  .backup-action-card,
  .danger-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .btn-backup-action,
  .btn-danger-action {
    width: 100%;
    justify-content: center;
  }
}

/* ==================== AUTH RECOVERY & FORGOT PASSWORD ==================== */
.auth-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.auth-forgot-link {
  background: transparent;
  border: none;
  color: #38bdf8;
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.15s ease, opacity 0.15s ease;
}

.auth-forgot-link:hover {
  color: #7dd3fc;
  opacity: 0.95;
}

.auth-alert .auth-error-text {
  font-weight: 500;
  margin-bottom: 6px;
}

.auth-reset-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed rgba(224, 104, 92, 0.4);
  font-size: 11.5px;
  color: #fca5a5;
  flex-wrap: wrap;
}

.btn-auth-inline-reset {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border-radius: 6px;
  background: rgba(34, 197, 94, 0.2);
  border: 1px solid rgba(34, 197, 94, 0.5);
  color: #4ade80;
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-auth-inline-reset:hover {
  background: #22c55e;
  color: #0b0f17;
  border-color: #22c55e;
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.35);
}

/* ==================== GUIDE SYNC & RECOVERY CARD ==================== */
.guide-sync-card {
  border-left: 3px solid #22c55e !important;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.05) 0%, rgba(15, 23, 42, 0.6) 100%) !important;
}

.guide-sync-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 6px;
}

.guide-sync-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  align-self: flex-start;
  padding: 2px 8px;
  border-radius: 9999px;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #4ade80;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.guide-sync-action-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.btn-guide-sync {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border-radius: 8px;
  background: #22c55e;
  color: #090d13;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid #22c55e;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 8px rgba(34, 197, 94, 0.25);
}

.btn-guide-sync:hover {
  background: #16a34a;
  border-color: #16a34a;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.4);
}

.btn-guide-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 13px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary, #94a3b8);
  font-size: 12px;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-guide-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #f8fafc;
  border-color: rgba(255, 255, 255, 0.25);
}

/* ==================== REMEMBER ME CHECKBOX ==================== */
.auth-remember-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-top: 2px;
  margin-bottom: 4px;
}

.auth-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  font-size: 12.5px;
  color: var(--muted, #94a3b8);
  transition: color 0.15s ease;
}

.auth-checkbox-label:hover {
  color: var(--text, #f8fafc);
}

.auth-checkbox-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.auth-checkbox-custom {
  position: relative;
  width: 16px;
  height: 16px;
  background: #090c10;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.auth-checkbox-label input:checked ~ .auth-checkbox-custom {
  background: #22c55e;
  border-color: #22c55e;
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.4);
}

.auth-checkbox-label input:checked ~ .auth-checkbox-custom::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 2px;
  width: 4px;
  height: 8px;
  border: solid #090d13;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* ==================== PASSWORD COMPLEXITY CHECKLIST ==================== */
.password-req-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-top: 4px;
  padding: 6px 10px;
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.password-req-list .req-title {
  font-size: 11px;
  font-weight: 600;
  color: #94a3b8;
  margin-bottom: 2px;
}

.password-req-list .req-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: #64748b;
  transition: all 0.15s ease;
}

.password-req-list .req-item .req-dot {
  font-size: 11px;
  line-height: 1;
}

.password-req-list .req-item.valid {
  color: #4ade80;
  font-weight: 500;
}

.password-req-list .req-item.valid .req-dot {
  color: #22c55e;
}