/* ============================================================
   MoltSearch Homepage — MoltBrowser AI Search & Chat
   Design System: Dark/Light mode, matching Flutter app
   ============================================================ */

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

/* ── Theme Variables ── */
:root, [data-theme="dark"] {
  --bg: #000000;
  --bg-surface: #1C1C1E;
  --bg-card: #2C2C2E;
  --bg-card-hover: #3A3A3C;
  --bg-input: rgba(255,255,255,0.08);
  --bg-input-border: rgba(255,255,255,0.20);
  --bg-glass: rgba(255,255,255,0.06);
  --bg-glass-border: rgba(255,255,255,0.14);

  --accent: #E60000;
  --accent-hover: #FF1A1A;
  --accent-dim: rgba(230,0,0,0.12);
  --blue: #007AFF;
  --success: #34C759;
  --warning: #FF9500;

  --text: #FFFFFF;
  --text-secondary: #8E8E93;
  --text-muted: #636366;
  --text-on-accent: #FFFFFF;

  --border: #38383A;
  --border-light: rgba(255,255,255,0.08);

  --shadow-card: 0 2px 12px rgba(0,0,0,0.40);
  --shadow-elevated: 0 8px 32px rgba(0,0,0,0.50);

  --particle-opacity: 1;
  --header-bg: rgba(0,0,0,0.80);

  --radius-sm: 8px;
  --radius: 12px;
  --radius-md: 14px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

[data-theme="light"] {
  --bg: #FFFFFF;
  --bg-surface: #F5F5F5;
  --bg-card: #FAFAFA;
  --bg-card-hover: #F0F0F0;
  --bg-input: rgba(0,0,0,0.04);
  --bg-input-border: rgba(0,0,0,0.15);
  --bg-glass: rgba(0,0,0,0.03);
  --bg-glass-border: rgba(0,0,0,0.10);

  --accent: #E60000;
  --accent-hover: #CC0000;
  --accent-dim: rgba(230,0,0,0.08);

  --text: #1F1F1F;
  --text-secondary: #666666;
  --text-muted: #999999;
  --text-on-accent: #FFFFFF;

  --border: #E0E0E0;
  --border-light: rgba(0,0,0,0.05);

  --shadow-card: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-elevated: 0 8px 32px rgba(0,0,0,0.12);

  --particle-opacity: 0;
  --header-bg: rgba(255,255,255,0.85);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ── Particles ── */
.particles {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 0;
  overflow: hidden;
  opacity: var(--particle-opacity);
  transition: opacity 0.3s;
}
.particle {
  position: absolute; border-radius: 50%;
  background: rgba(255,255,255,0.15);
  animation: particleFloat linear infinite;
}
@keyframes particleFloat {
  0%   { transform: translateY(110vh) translateX(0); opacity: 0; }
  5%   { opacity: 1; }
  95%  { opacity: 1; }
  100% { transform: translateY(-10vh) translateX(30px); opacity: 0; }
}

/* ── Background glow (dark mode) ── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, rgba(59,130,246,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 85% 15%, rgba(226,232,240,0.04) 0%, transparent 55%),
    radial-gradient(ellipse 70% 60% at 50% 90%, rgba(124,58,237,0.08) 0%, transparent 60%);
  pointer-events: none; z-index: 0;
  opacity: var(--particle-opacity);
  transition: opacity 0.3s;
}

/* ================================================================
   TOP BAR
   ================================================================ */
.top-bar {
  position: fixed; top: 0; left: 0; right: 0;
  height: 56px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  background: var(--header-bg);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  z-index: 100;
}

.top-bar-logo {
  font-size: 20px; font-weight: 800; letter-spacing: -0.5px;
  text-decoration: none;
}
.logo-molt { color: var(--accent); }
.logo-search { color: var(--text); }

.top-bar-right { display: flex; align-items: center; gap: 12px; }

.badge-browser {
  font-size: 11px; font-weight: 600;
  padding: 3px 10px; border-radius: 100px;
  background: var(--accent-dim); color: var(--accent);
  letter-spacing: 0.3px; text-transform: uppercase;
}

.theme-toggle {
  width: 36px; height: 36px;
  border: 1px solid var(--border); border-radius: 50%;
  background: var(--bg-surface);
  cursor: pointer; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.theme-toggle:hover { border-color: var(--text-muted); }

/* ================================================================
   HERO / LANDING VIEW
   ================================================================ */
.landing-view {
  position: relative; z-index: 1;
  padding-top: 56px;
  min-height: 100vh;
}

.hero {
  display: flex; flex-direction: column; align-items: center;
  padding: 80px 24px 40px;
}

.hero-title {
  font-size: 56px; font-weight: 800; letter-spacing: -1px;
  position: relative;
}

.hero-beta {
  font-size: 11px; font-weight: 700;
  color: var(--text-muted);
  vertical-align: super;
  letter-spacing: 0.5px;
}

.hero-subtitle {
  font-size: 14px; font-weight: 700;
  color: var(--accent);
  letter-spacing: 3px; text-transform: uppercase;
  margin-top: 4px;
}

/* ── Search Bar ── */
@property --search-angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

.search-bar-wrapper {
  width: 100%; max-width: 720px;
  margin-top: 40px;
  position: relative;
  padding: 2px;
  border-radius: 22px;
  background: conic-gradient(from var(--search-angle),
    #E60000 0%, #34C759 25%, #007AFF 50%, #7C3AED 75%, #E60000 100%);
  animation: searchGlow 4s linear infinite;
}

@keyframes searchGlow {
  from { --search-angle: 0deg; }
  to   { --search-angle: 360deg; }
}

.search-bar {
  display: flex; flex-direction: column;
  background: var(--bg-surface);
  border-radius: 20px;
  padding: 16px 20px 12px;
  gap: 12px;
}

.search-input {
  width: 100%;
  background: transparent; border: none; outline: none;
  color: var(--text);
  font-family: var(--font);
  font-size: 16px; font-weight: 500;
  padding: 4px 0;
}
.search-input::placeholder { color: var(--text-muted); }

.search-bar-actions {
  display: flex; align-items: center; justify-content: flex-end; gap: 8px;
}

.search-action-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-secondary);
  font-family: var(--font); font-size: 13px; font-weight: 500;
  cursor: pointer; transition: all 0.2s;
  white-space: nowrap;
}
.search-action-btn:hover {
  background: var(--bg-card-hover); color: var(--text);
}
.search-action-btn.active {
  background: var(--accent-dim); color: var(--accent);
  border-color: rgba(230,0,0,0.30);
}
.search-action-btn svg { flex-shrink: 0; }

.search-submit-btn {
  width: 42px; height: 42px;
  border-radius: 50%; border: none;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.2s;
  flex-shrink: 0;
  box-shadow: 0 2px 12px rgba(230,0,0,0.30);
}
.search-submit-btn:hover {
  background: var(--accent-hover);
  transform: scale(1.05);
}

/* ================================================================
   DISCOVER SECTION
   ================================================================ */
.discover-section {
  padding: 20px 24px 60px;
  max-width: 900px; margin: 0 auto;
}

.discover-label {
  text-align: center;
  font-size: 13px; font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 16px;
  letter-spacing: 0.3px;
}

.discover-tabs {
  display: flex; justify-content: center; gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.discover-tab {
  padding: 8px 18px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
  white-space: nowrap;
}
.discover-tab:hover {
  color: var(--text); background: var(--bg-card);
}
.discover-tab.active {
  background: var(--accent-dim); color: var(--accent);
  border-color: rgba(230,0,0,0.30);
}

.discover-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

/* ── Discover Card (Video/Image) ── */
.discover-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all 0.2s;
  cursor: pointer;
}
.discover-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevated);
}

.discover-card-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--bg-surface);
  overflow: hidden;
}
.discover-card-thumb img {
  width: 100%; height: 100%; object-fit: cover;
}

.discover-card-duration {
  position: absolute; top: 8px; right: 8px;
  background: rgba(0,0,0,0.75); color: #fff;
  font-size: 11px; font-weight: 600;
  padding: 2px 7px; border-radius: 4px;
}

.discover-card-info {
  padding: 12px;
}
.discover-card-title {
  font-size: 13px; font-weight: 600;
  color: var(--text);
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
  line-height: 1.4;
}
.discover-card-meta {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 6px;
  font-size: 12px; color: var(--text-muted);
}
.discover-card-meta span { white-space: nowrap; }
.discover-card-author { font-weight: 500; }
.discover-card-likes {
  display: flex; align-items: center; gap: 3px;
}

/* Play icon overlay */
.discover-play-icon {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.15);
  opacity: 0.7;
  transition: opacity 0.2s;
}
.discover-card:hover .discover-play-icon { opacity: 1; }
.discover-play-icon svg {
  width: 36px; height: 36px;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}

/* ── Discover Card (Prompt) ── */
.prompt-card {
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 16px;
  transition: all 0.2s;
  cursor: pointer;
}
.prompt-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevated);
}
.prompt-card-title {
  font-size: 14px; font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
.prompt-card-space {
  font-size: 12px; color: var(--text-muted);
  margin-bottom: 6px;
}
.prompt-card-desc {
  font-size: 13px; color: var(--text-secondary);
  line-height: 1.4; margin-bottom: 8px;
  display: -webkit-box; -webkit-line-clamp: 3;
  -webkit-box-orient: vertical; overflow: hidden;
}
.prompt-card-tags {
  display: flex; gap: 4px; flex-wrap: wrap;
  margin-bottom: 10px;
}
.prompt-tag {
  font-size: 11px; font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-surface);
  padding: 2px 8px; border-radius: 100px;
  border: 1px solid var(--border-light);
}
.prompt-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: auto;
}
.prompt-card-author {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--text-secondary);
}
.prompt-avatar {
  width: 18px; height: 18px; border-radius: 50%;
}
.prompt-card-stats {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-muted);
}
.prompt-model {
  font-size: 11px; font-weight: 600;
  color: var(--blue);
  background: rgba(0,122,255,0.10);
  padding: 2px 8px; border-radius: 100px;
}
.prompt-card-meta {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12px; color: var(--text-muted);
}

.discover-loading {
  display: flex; justify-content: center; padding: 32px;
}

/* ── Spinner ── */
.spinner {
  width: 28px; height: 28px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Skeleton ── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.6s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ================================================================
   RESULTS VIEW
   ================================================================ */
.results-view {
  position: relative; z-index: 1;
  padding-top: 56px;
  min-height: 100vh;
  display: flex; flex-direction: column;
}

.results-header {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-light);
}

.back-btn, .menu-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: none; background: transparent;
  color: var(--text);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: background 0.2s;
  flex-shrink: 0;
}
.back-btn:hover, .menu-btn:hover { background: var(--bg-card); }

.results-title { flex: 1; min-width: 0; }
.results-title h2 {
  font-size: 16px; font-weight: 700;
  color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.results-depth {
  font-size: 12px; color: var(--text-muted);
}

/* ── Result Tabs (Glassmorphic – matching Flutter) ── */
.result-tabs {
  display: flex; justify-content: center; gap: 2px;
  padding: 8px 24px;
  background: transparent;
}
.result-tabs-inner {
  display: inline-flex; align-items: center; gap: 2px;
  padding: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 24px;
  border: 0.5px solid rgba(255,255,255,0.10);
  backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px);
}
[data-theme="light"] .result-tabs-inner {
  background: rgba(0,0,0,0.04);
  border-color: rgba(0,0,0,0.08);
}

.result-tab {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 20px;
  border: none; background: transparent;
  color: var(--text-secondary);
  font-family: var(--font); font-size: 13px; font-weight: 500;
  cursor: pointer; transition: all 0.2s ease-out;
  letter-spacing: 0.2px;
}
.result-tab:hover { color: var(--text); }
.result-tab.active {
  background: linear-gradient(135deg, #007AFF, #5E5CE6);
  color: #FFFFFF; font-weight: 600;
  box-shadow: 0 2px 8px rgba(0,122,255,0.30);
}
.result-tab svg { flex-shrink: 0; }

/* ── Tab Panels ── */
.result-panels {
  flex: 1; padding: 16px 24px; overflow-y: auto;
  max-width: 800px; width: 100%; margin: 0 auto;
}
.result-panel { display: none; }
.result-panel.active { display: block; }

/* ── User Message Bubble (matching Flutter) ── */
.user-bubble {
  display: flex; justify-content: flex-end;
  margin: 8px 12px 4px 60px;
}
.user-bubble-text {
  background: #007AFF;
  color: #fff;
  padding: 10px 16px;
  border-radius: 20px;
  font-size: 15px; font-weight: 400;
  max-width: 100%;
  word-wrap: break-word;
}

/* ── AI Response Card (matching Flutter ai_response_card.dart) ── */
.ai-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  margin: 6px 12px 6px 12px;
  margin-right: 60px;
  padding: 16px;
}

.ai-card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}

.ai-card-model {
  display: flex; align-items: center; gap: 12px;
}
.ai-card-logo {
  width: 32px; height: 32px;
  border-radius: 8px;
  object-fit: contain;
  background: var(--bg-surface);
  padding: 4px;
}
.ai-card-name {
  font-size: 16px; font-weight: 700; color: var(--text);
}

.ai-card-meta {
  display: flex; align-items: center; gap: 8px;
}
.ai-card-time {
  font-size: 12px; color: var(--text-secondary);
  font-weight: 400;
}
.ai-card-cached {
  background: #34C759; color: #fff;
  font-size: 9px; font-weight: 700;
  padding: 2px 6px; border-radius: 6px;
  text-transform: uppercase;
}
.ai-card-menu {
  width: 28px; height: 28px;
  border: none; background: transparent;
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; border-radius: 50%;
  padding: 4px;
  transition: background 0.15s;
}
.ai-card-menu:hover { background: var(--bg-surface); }

.ai-card-body {
  font-size: 15px; line-height: 1.5;
  color: var(--text);
}
.ai-card-body p { margin-bottom: 12px; }
.ai-card-body p:last-child { margin-bottom: 0; }
.ai-card-body ul, .ai-card-body ol {
  padding-left: 20px; margin-bottom: 12px;
}
.ai-card-body li { margin-bottom: 4px; }
.ai-card-body strong { font-weight: 700; }
.ai-card-body em { font-style: italic; }
.ai-card-body code {
  background: rgba(128,128,128,0.15);
  padding: 2px 6px; border-radius: 4px;
  font-family: var(--font-mono); font-size: 13px;
}
.ai-card-body pre {
  background: var(--bg);
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  overflow-x: auto;
  margin-bottom: 12px;
}
.ai-card-body pre code {
  background: none; padding: 0;
}
.ai-card-body a { color: #007AFF; text-decoration: underline; }
.ai-card-body blockquote {
  border-left: 4px solid var(--border);
  padding-left: 12px;
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.ai-card-body h1, .ai-card-body h2, .ai-card-body h3, .ai-card-body h4 {
  font-weight: 700; color: var(--text); margin-bottom: 8px;
}

/* Streaming cursor */
.ai-card-body .cursor {
  display: inline-block; width: 2px; height: 1em;
  background: var(--accent);
  animation: blink 1s step-end infinite;
  vertical-align: text-bottom;
  margin-left: 2px;
}
@keyframes blink {
  50% { opacity: 0; }
}

/* ── Web Results (matching Flutter web_result_card.dart) ── */
.web-result-card {
  display: block;
  padding: 12px; margin-bottom: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all 0.15s;
  text-decoration: none;
  color: var(--text);
}
.web-result-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0,122,255,0.4);
}
.web-result-header {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 8px;
}
.web-result-favicon {
  width: 20px; height: 20px; border-radius: 4px;
  flex-shrink: 0;
}
.web-result-favicon-fallback {
  width: 20px; height: 20px; border-radius: 4px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: #fff;
}
.web-result-site {
  display: flex; flex-direction: column; min-width: 0;
}
.web-result-site-name {
  font-size: 13px; font-weight: 500; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.web-result-url {
  font-size: 11px; color: var(--text-secondary); opacity: 0.7;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.web-result-title {
  font-size: 16px; font-weight: 500;
  line-height: 1.3;
  margin-bottom: 4px;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
[data-theme="dark"] .web-result-title { color: #8AB4F8; }
[data-theme="light"] .web-result-title { color: #1A0DAB; }
.web-result-card:hover .web-result-title { text-decoration: underline; }
.web-result-snippet {
  font-size: 13px; color: var(--text-secondary);
  line-height: 1.4;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}

/* ── AI Summary Button (matching Flutter — Electric Red #FF0000) ── */
.ai-summary-btn {
  width: 100%;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px;
  margin-top: 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: #FF0000;
  font-family: var(--font); font-size: 12px; font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.ai-summary-btn:hover {
  background: rgba(255,0,0,0.06);
  border-color: rgba(255,0,0,0.20);
}
.ai-summary-btn.expanded {
  border-color: rgba(255,0,0,0.4);
}
.ai-summary-btn svg {
  flex-shrink: 0;
}
.ai-summary-btn .ai-summary-spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(255,0,0,0.25);
  border-top-color: #FF0000;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ── AI Summary Content ── */
.ai-summary-content {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
[data-theme="light"] .ai-summary-content {
  border-top-color: rgba(0,0,0,0.05);
}
.ai-summary-header {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600;
  color: #FF0000;
  margin-bottom: 8px;
}
.ai-summary-text {
  font-size: 13px; color: var(--text);
  line-height: 1.5; margin-bottom: 12px;
}
.ai-summary-keypoints {
  margin-bottom: 12px;
}
.ai-summary-keypoints-title {
  font-size: 12px; font-weight: 600;
  color: var(--text); margin-bottom: 8px;
}
.ai-summary-keypoint {
  font-size: 12px; color: var(--text);
  line-height: 1.5; margin-bottom: 10px;
  padding-left: 12px;
  position: relative;
}
.ai-summary-keypoint::before {
  content: '•'; position: absolute; left: 0;
  color: #007AFF; font-weight: 700;
}
.ai-summary-citation {
  display: inline-block;
  font-size: 11px; font-weight: 600;
  color: #5E5CE6;
  background: rgba(94,92,230,0.15);
  padding: 1px 5px; border-radius: 4px;
  margin-left: 4px; cursor: pointer;
}
.ai-summary-relevance {
  background: rgba(0,122,255,0.08);
  border: 1px solid rgba(0,122,255,0.15);
  border-radius: 8px;
  padding: 10px;
  font-size: 12px; color: var(--text-secondary);
  line-height: 1.4;
  display: flex; align-items: flex-start; gap: 8px;
}
.ai-summary-relevance svg { flex-shrink: 0; margin-top: 1px; }

/* ── Video Results (matching Flutter video_result_card.dart) ── */
.video-results {
  display: grid; grid-template-columns: 1fr;
  gap: 12px;
}
.video-result-card {
  display: block;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  text-decoration: none; color: var(--text);
  transition: all 0.15s;
  overflow: hidden;
}
[data-theme="light"] .video-result-card {
  border-color: rgba(0,0,0,0.08);
}
.video-result-card:hover {
  border-color: rgba(0,122,255,0.4);
}
.video-result-card.summary-shown {
  border: 2px solid rgba(0,122,255,0.5);
}

.video-result-inner {
  display: flex; gap: 12px;
  padding: 10px;
}

.video-result-thumb {
  position: relative; flex-shrink: 0;
  width: 180px; aspect-ratio: 16/9;
  border-radius: 10px;
  overflow: hidden; background: var(--bg-surface);
}
.video-result-thumb img { width: 100%; height: 100%; object-fit: cover; }
.video-result-thumb .duration-badge {
  position: absolute; bottom: 4px; right: 4px;
  background: rgba(0,0,0,0.85); color: #fff;
  font-size: 11px; font-weight: 600;
  padding: 2px 4px; border-radius: 4px;
}
.video-result-thumb .play-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: transparent;
  transition: background 0.2s;
}
.video-result-card:hover .play-overlay {
  background: rgba(0,0,0,0.3);
}
.play-circle {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: #007AFF;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.2s;
}
.video-result-card:hover .play-circle { opacity: 1; }

.video-result-info { flex: 1; min-width: 0; }
.video-result-title {
  font-size: 14px; font-weight: 500;
  display: -webkit-box; -webkit-line-clamp: 3;
  -webkit-box-orient: vertical; overflow: hidden;
  line-height: 1.3;
}
.video-result-publisher {
  font-size: 12px; color: var(--text-secondary);
  margin-top: 8px;
}

/* AI Summary button inside video card */
.video-ai-summary-btn {
  margin: 4px 8px 8px;
  padding: 10px 12px;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  background: rgba(128,128,128,0.08);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  color: #FF0000;
  font-family: var(--font); font-size: 12px; font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
[data-theme="light"] .video-ai-summary-btn {
  background: rgba(0,0,0,0.03);
  border-color: rgba(0,0,0,0.06);
}
.video-ai-summary-btn:hover {
  background: rgba(255,0,0,0.06);
  border-color: rgba(255,0,0,0.20);
}
.video-ai-summary-btn .ai-summary-spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(255,0,0,0.25);
  border-top-color: #FF0000;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.video-summary-content {
  margin: 0 8px 8px;
  padding: 12px;
  background: rgba(128,128,128,0.06);
  border-radius: 0 0 8px 8px;
}

/* ── Image Grid (matching Flutter image_result_card.dart) ── */
.image-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.image-grid-item {
  position: relative;
  aspect-ratio: 1; border-radius: 12px;
  overflow: hidden; background: var(--bg-surface);
  cursor: pointer;
  border: 2px solid var(--border);
  transition: border-color 0.2s;
}
.image-grid-item:hover { border-color: #007AFF; }
.image-grid-item img {
  width: 100%; height: 100%; object-fit: cover;
}
.image-grid-item .image-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.3);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.2s;
}
.image-grid-item:hover .image-overlay { opacity: 1; }
.image-zoom-circle {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,0.9);
  display: flex; align-items: center; justify-content: center;
}
.image-zoom-circle svg { color: #007AFF; }
.image-grid-item .image-caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  padding: 8px;
}
.image-caption-title {
  font-size: 12px; font-weight: 500; color: #fff;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.image-caption-domain {
  font-size: 10px; color: rgba(255,255,255,0.7);
}

/* ── Continue Chat (Floating — matching Flutter FuturisticSearchBar) ── */
.continue-chat {
  position: sticky; bottom: 0;
  padding: 12px 24px 8px;
  background: transparent;
  pointer-events: none;
}
.continue-chat > * { pointer-events: auto; }

.continue-chat-form {
  display: flex; align-items: center; gap: 0;
  max-width: 800px; margin: 0 auto;
  min-height: 56px;
  background: var(--bg-surface);
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,0.12);
  padding: 4px 4px 4px 20px;
  box-shadow:
    0 4px 20px rgba(0,0,0,0.12),
    0 2px 8px rgba(0,0,0,0.06);
  transition: border-color 0.2s, box-shadow 0.2s;
}
[data-theme="light"] .continue-chat-form {
  border-color: rgba(0,0,0,0.08);
  box-shadow:
    0 4px 20px rgba(0,0,0,0.08),
    0 2px 8px rgba(0,0,0,0.04);
}
.continue-chat-form:focus-within {
  border-color: rgba(0,122,255,0.5);
  box-shadow:
    0 4px 20px rgba(0,0,0,0.12),
    0 2px 8px rgba(0,0,0,0.06),
    0 0 0 2px rgba(0,122,255,0.15);
}

.continue-input {
  flex: 1;
  height: 48px; padding: 0;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: var(--font); font-size: 14px;
  outline: none;
}
.continue-input::placeholder { color: var(--text-muted); }

.continue-submit-btn {
  width: 44px; height: 44px;
  border-radius: 50%; border: none;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.2s;
  flex-shrink: 0;
}
.continue-submit-btn:hover { background: var(--accent-hover); }

.disclaimer {
  text-align: center;
  font-size: 11px; color: var(--text-muted);
  margin-top: 6px;
}

/* ── Share Prompt CTA ── */
.share-prompt {
  text-align: center; padding: 16px 24px;
}
.share-prompt-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--accent);
  font-family: var(--font); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
}
.share-prompt-btn:hover {
  background: var(--accent-dim);
  border-color: rgba(230,0,0,0.30);
}

/* ── Limit Banner ── */
.limit-banner {
  position: fixed; bottom: 0; left: 0; right: 0;
  padding: 14px 24px;
  background: rgba(230,0,0,0.12);
  border-top: 1px solid rgba(230,0,0,0.25);
  text-align: center;
  font-size: 14px; color: var(--accent);
  font-weight: 500;
  z-index: 200;
}
.limit-banner a { color: var(--accent); font-weight: 700; text-decoration: underline; }

/* ── Empty State ── */
.empty-state {
  text-align: center; padding: 48px 24px;
  color: var(--text-muted); font-size: 14px;
}

/* ── Discover Empty State ── */
.discover-empty {
  text-align: center; padding: 48px 24px;
  color: var(--text-muted); font-size: 14px;
  grid-column: 1 / -1;
}

/* ================================================================
   DISCOVER DETAIL PAGE (Gap 3 — full-screen content viewer)
   ================================================================ */
.discover-detail-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: var(--bg);
  display: flex; flex-direction: column;
  animation: fadeInUp 0.25s ease-out;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.discover-detail-header {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  background: var(--header-bg);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  flex-shrink: 0;
}
.discover-detail-back {
  width: 40px; height: 40px;
  border-radius: 50%; border: none;
  background: transparent; color: var(--text);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: background 0.2s;
}
.discover-detail-back:hover { background: var(--bg-card); }
.discover-detail-title {
  flex: 1; min-width: 0;
  font-size: 16px; font-weight: 600; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.discover-detail-open {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  background: #007AFF; color: #fff;
  border: none; border-radius: 100px;
  font-family: var(--font); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: background 0.2s;
  flex-shrink: 0;
}
.discover-detail-open:hover { background: #0066D6; }

.discover-detail-body {
  flex: 1; overflow: auto;
}

/* Video embed container */
.discover-detail-video {
  width: 100%; max-width: 900px;
  margin: 0 auto;
  aspect-ratio: 16/9;
  background: #000;
}
.discover-detail-video iframe {
  width: 100%; height: 100%; border: none;
}

/* Image container */
.discover-detail-image {
  max-width: 900px; margin: 0 auto;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.discover-detail-image img {
  max-width: 100%; max-height: 75vh;
  border-radius: 12px; object-fit: contain;
}

/* Info section below content */
.discover-detail-info {
  max-width: 900px; margin: 0 auto;
  padding: 20px 16px;
}
.discover-detail-info h2 {
  font-size: 20px; font-weight: 700;
  color: var(--text); margin-bottom: 12px;
  line-height: 1.3;
}
.discover-detail-meta {
  display: flex; align-items: center; gap: 16px;
  flex-wrap: wrap;
  font-size: 13px; color: var(--text-secondary);
  margin-bottom: 16px;
}
.discover-detail-meta .meta-author {
  display: flex; align-items: center; gap: 8px;
  font-weight: 500; color: var(--text);
}
.discover-detail-meta .meta-author img {
  width: 24px; height: 24px; border-radius: 50%;
}
.discover-detail-meta .meta-stat {
  display: flex; align-items: center; gap: 4px;
}
.discover-detail-description {
  font-size: 14px; color: var(--text-secondary);
  line-height: 1.6;
}

/* Prompt detail */
.discover-detail-prompt {
  max-width: 700px; margin: 24px auto;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
}
.discover-detail-prompt .prompt-text {
  font-size: 15px; line-height: 1.6;
  color: var(--text); margin-bottom: 16px;
}
.discover-detail-prompt .prompt-response {
  font-size: 14px; line-height: 1.5;
  color: var(--text-secondary);
  padding: 16px;
  background: var(--bg-surface);
  border-radius: 12px;
  white-space: pre-wrap;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 768px) {
  .hero { padding: 60px 16px 32px; }
  .hero-title { font-size: 40px; }
  .search-bar-wrapper { margin-top: 28px; }
  .discover-section { padding: 16px 16px 48px; }
  .discover-grid { gap: 12px; }
  .result-panels { padding: 12px 16px; }
  .results-header { padding: 12px 16px; }
  .result-tabs { padding: 10px 16px; }
  .video-result-thumb { width: 140px; }
  .ai-card { margin-right: 24px; }
  .image-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .hero-title { font-size: 32px; }
  .discover-grid { grid-template-columns: 1fr; }
  .search-bar-actions { flex-wrap: wrap; }
  .search-action-btn { font-size: 12px; padding: 6px 10px; }
  .video-result-inner { flex-direction: column; }
  .video-result-thumb { width: 100%; }
  .ai-card { margin-right: 12px; }
}