/* Base styles shared with the Gym-Anything site (cmu-l3.github.io/gym-anything). */

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

:root {
  --bg: #fafafa;
  --bg-card: #ffffff;
  --bg-card-hover: #f5f5f5;
  --bg-elevated: #f0f0f2;
  --border: #e2e2e8;
  --text: #1a1a1e;
  --text-muted: #5a5a63;
  --text-dim: #8a8a96;
  --accent: #0891b2;
  --accent-dim: rgba(8, 145, 178, 0.08);
  --purple: #7c3aed;
  --green: #16a34a;
  --amber: #d97706;
  --red: #dc2626;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --chart-grid: rgba(0,0,0,0.06);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
}

/* Dark mode — uncomment to enable system-based switching:
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #050505;
    --bg-card: #111113;
    --bg-card-hover: #19191d;
    --bg-elevated: #1c1c21;
    --border: #2a2a30;
    --text: #eeeef0;
    --text-muted: #87878f;
    --text-dim: #5a5a63;
    --accent: #22d3ee;
    --accent-dim: rgba(34, 211, 238, 0.12);
    --purple: #a78bfa;
    --green: #4ade80;
    --amber: #f59e0b;
    --red: #ef4444;
    --chart-grid: rgba(255,255,255,0.04);
    --shadow-card: 0 1px 3px rgba(0,0,0,0.3);
  }
}
*/

html { scroll-behavior: smooth; }

html {
  overflow-x: hidden;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (min-width: 1600px) {
  .container { max-width: 1400px; }
}

@media (min-width: 2000px) {
  .container { max-width: 1600px; }
}

/* ─── SECTION SPACING ─── */
section { padding: 3.5rem 0; }
section + section { border-top: 1px solid var(--border); }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 720px;
  line-height: 1.7;
}

/* ════════════════════════════════════════════════════════════════
   HERO
   ════════════════════════════════════════════════════════════════ */
#hero {
  padding: 4.5rem 0 2rem;
  text-align: center;
  position: relative;
}

#hero::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 600px;
  background: radial-gradient(ellipse, rgba(8,145,178,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 5.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 0.5rem;
  position: relative;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--accent), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.hero-authors {
  font-size: 1.05rem;
  color: var(--text-dim);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-authors span { color: var(--text-muted); }

.hero-blurb {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 750px;
  margin: 0 auto 2rem;
  line-height: 1.8;
}

.hero-blurb strong { color: var(--text); font-weight: 600; }

.btn-row {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  text-decoration: none;
}

.btn:hover { background: var(--bg-card-hover); border-color: var(--text-dim); text-decoration: none; }

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: #06b6d4;
  border-color: #06b6d4;
}

/* ════════════════════════════════════════════════════════════════
   CAROUSEL
   ════════════════════════════════════════════════════════════════ */
#carousel-section {
  padding: 1rem 0 2.5rem;
  overflow: hidden;
  border-top: none;
}

.carousel-track {
  display: flex;
  gap: 1rem;
  animation: scroll-left 300s linear infinite;
  width: max-content;
}

.carousel-track.reverse {
  animation: scroll-right 280s linear infinite;
}

.carousel-card {
  flex-shrink: 0;
  width: 280px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: transform 0.3s, border-color 0.3s;
}

.carousel-card:hover {
  transform: scale(1.03);
  border-color: var(--accent);
}

.carousel-card img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  display: block;
}

.carousel-card .label {
  padding: 0.5rem 0.75rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
}

@keyframes scroll-left {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes scroll-right {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}

.carousel-track:hover, .carousel-track.reverse:hover {
  animation-play-state: paused;
}

/* ════════════════════════════════════════════════════════════════
   STATS BAR
   ════════════════════════════════════════════════════════════════ */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding: 1.5rem 0;
}

.stat-card {
  text-align: center;
  padding: 1.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  position: relative;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
}

.stat-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.stat-tooltip {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) scale(0.95);
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  width: 280px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 10;
  text-align: left;
}

.stat-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 7px solid transparent;
  border-top-color: var(--accent);
}

.stat-card:hover .stat-tooltip {
  opacity: 1;
  transform: translateX(-50%) scale(1);
  pointer-events: auto;
}

.stat-tooltip p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
}

.stat-tooltip strong {
  color: var(--text);
  font-weight: 600;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

/* ════════════════════════════════════════════════════════════════
   HOW IT WORKS
   ════════════════════════════════════════════════════════════════ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.step-card {
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  position: relative;
  box-shadow: var(--shadow-card);
}

.step-number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-dim);
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  letter-spacing: 0.08em;
}

.step-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.step-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.pipeline-image {
  margin-top: 3rem;
  text-align: center;
}

.pipeline-image img {
  max-width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
}

/* ════════════════════════════════════════════════════════════════
   LIBRARY
   ════════════════════════════════════════════════════════════════ */
.library-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2.5rem;
  align-items: stretch;
}

.code-example {
  background: #1e1e2e;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #313244;
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}

.code-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.75rem 1rem;
  background: #181825;
  border-bottom: 1px solid #313244;
}

.code-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.code-filename {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #a6adc8;
  margin-left: 0.5rem;
}

.code-block {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: #cdd6f4;
  overflow-x: auto;
  margin: 0;
}

.code-block .kw { color: #cba6f7; }
.code-block .fn { color: #89b4fa; }
.code-block .st { color: #a6e3a1; }
.code-block .cm { color: #6c7086; font-style: italic; }
.code-block .num { color: #fab387; }

.library-features {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.lib-feature {
  flex: 1;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-card);
}

.lib-feature-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.lib-feature p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.lib-feature code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: var(--accent-dim);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  color: var(--accent);
}

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

/* ════════════════════════════════════════════════════════════════
   REELS (Slot Machine)
   ════════════════════════════════════════════════════════════════ */
#reels-section { overflow: hidden; }

.reels-container {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1.5fr;
  gap: 1.25rem;
  margin-top: 2.5rem;
  min-height: 360px;
}

.reel-column {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.reel-header {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.85rem 1rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.reel-viewport {
  height: 280px;
  overflow: hidden;
  position: relative;
}

.reel-viewport::before, .reel-viewport::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 60px;
  z-index: 2;
  pointer-events: none;
}
.reel-viewport::before {
  top: 0;
  background: linear-gradient(to bottom, var(--bg-card), transparent);
}
.reel-viewport::after {
  bottom: 0;
  background: linear-gradient(to top, var(--bg-card), transparent);
}

.reel-track {
  display: flex;
  flex-direction: column;
  animation: reel-scroll 120s linear infinite;
}

.reel-column:nth-child(2) .reel-track { animation-duration: 90s; }
.reel-column:nth-child(3) .reel-track { animation-duration: 60s; }

@keyframes reel-scroll {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}

.reel-item {
  padding: 0.65rem 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  flex-shrink: 0;
}

.reel-highlight-bar {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: 0; right: 0;
  height: 36px;
  border-top: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent);
  background: var(--accent-dim);
  z-index: 1;
  pointer-events: none;
}

.reel-preview {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
}

.reel-preview-header {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  padding: 0.85rem 1rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.reel-preview-content {
  padding: 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.reel-preview-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.reel-preview-sw {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
}

.reel-preview-sw .sw-desc {
  font-weight: 400;
  color: var(--text-dim);
}

.reel-preview-task {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.55;
  flex: 1;
}

/* ════════════════════════════════════════════════════════════════
   LEADERBOARD
   ════════════════════════════════════════════════════════════════ */
.leaderboard-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.leaderboard-table {
  width: 100%;
  min-width: 500px;
  margin-top: 2rem;
  border-collapse: collapse;
}

.leaderboard-table th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.leaderboard-table td {
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
}

.leaderboard-table tr:hover td {
  background: var(--bg-card);
}

.leaderboard-table .rank {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-dim);
  width: 3rem;
}

.leaderboard-table .model-name {
  font-weight: 600;
}

.leaderboard-table .highlight-row td {
  background: var(--accent-dim);
}

.leaderboard-table .score {
  font-family: var(--font-mono);
  font-weight: 500;
}

.leaderboard-table .pass-rate {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
}

.leaderboard-note {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* ════════════════════════════════════════════════════════════════
   RESULTS
   ════════════════════════════════════════════════════════════════ */
.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.result-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.result-card .result-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.chart-container {
  position: relative;
  height: 240px;
}

.chart-container canvas { width: 100% !important; }

/* ════════════════════════════════════════════════════════════════
   EXPLORE (Placeholder)
   ════════════════════════════════════════════════════════════════ */
.explore-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.explore-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.2s;
}

.explore-card:hover { border-color: var(--accent); }

.explore-card img {
  width: 100%;
  height: 130px;
  object-fit: cover;
}

.explore-card-info {
  padding: 0.65rem 0.8rem;
}

.explore-card-info h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.explore-card-info span {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ════════════════════════════════════════════════════════════════
   CITATION
   ════════════════════════════════════════════════════════════════ */
.citation-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  position: relative;
  margin-top: 2rem;
}

.citation-block pre {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.65;
  overflow-x: auto;
  white-space: pre;
}

.copy-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover { color: var(--accent); border-color: var(--accent); }


/* ════════════════════════════════════════════════════════════════
   INTERACTIVE: Explore card task overlay
   ════════════════════════════════════════════════════════════════ */
.explore-card {
  position: relative;
  cursor: pointer;
}
.explore-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.78);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.25s;
  border-radius: 10px;
}
.explore-card:hover .explore-overlay {
  opacity: 1;
}
.explore-overlay p {
  font-size: 0.78rem;
  color: #f0f0f2;
  line-height: 1.6;
  text-align: center;
}
.explore-overlay .overlay-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

/* ════════════════════════════════════════════════════════════════
   INTERACTIVE: Leaderboard expandable rows
   ════════════════════════════════════════════════════════════════ */
.leaderboard-table tbody tr {
  cursor: pointer;
  transition: background 0.15s;
}
.leaderboard-detail {
  display: none;
}
.leaderboard-detail.open {
  display: table-row;
}
.leaderboard-detail td {
  padding: 0.75rem 1rem 1rem !important;
  background: var(--accent-dim) !important;
  border-bottom: 1px solid var(--border);
}
.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.detail-item {
  text-align: center;
}
.detail-item .detail-val {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}
.detail-item .detail-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 0.15rem;
}

/* ════════════════════════════════════════════════════════════════
   INTERACTIVE: Code copy button
   ════════════════════════════════════════════════════════════════ */
.code-header {
  position: relative;
}
.code-copy-btn {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: #313244;
  border: 1px solid #45475a;
  color: #a6adc8;
  padding: 0.25rem 0.6rem;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  cursor: pointer;
  transition: all 0.2s;
}
.code-copy-btn:hover {
  color: #cdd6f4;
  border-color: #89b4fa;
}

/* ════════════════════════════════════════════════════════════════
   INTERACTIVE: Step card ↔ pipeline connection
   ════════════════════════════════════════════════════════════════ */
.step-card {
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.step-card:hover, .step-card.active {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(8,145,178,0.12);
}

/* ════════════════════════════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════════════════════════════ */
footer {
  padding: 3rem 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

/* ════════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .hero-title { font-size: 3.5rem; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: 1fr; }
  .reels-container { grid-template-columns: 1fr 1fr; }
  .results-grid { grid-template-columns: 1fr; }
  .explore-grid { grid-template-columns: repeat(2, 1fr); }
  .leaderboard-table th,
  .leaderboard-table td { padding: 0.6rem 0.5rem; font-size: 0.85rem; }
}

@media (max-width: 600px) {
  .container { padding: 0 1rem; }
  section { padding: 2.5rem 0; }
  .hero-title { font-size: 2.2rem; word-break: break-word; }
  .hero-tagline { font-size: 1.15rem; }
  .hero-blurb { font-size: 0.95rem; }
  .stats-bar { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
  .stat-card { padding: 1rem 0.5rem; }
  .stat-number { font-size: 1.5rem; }
  .stat-tooltip { width: min(280px, calc(100vw - 2rem)); }
  .stat-card:nth-child(odd) .stat-tooltip { left: 0; transform: scale(0.95); }
  .stat-card:nth-child(even) .stat-tooltip { left: auto; right: 0; transform: scale(0.95); }
  .stat-card:nth-child(odd):hover .stat-tooltip,
  .stat-card:nth-child(even):hover .stat-tooltip { transform: scale(1); }
  .stat-card:nth-child(odd) .stat-tooltip::after { left: 25%; }
  .stat-card:nth-child(even) .stat-tooltip::after { left: 75%; }
  .reels-container { grid-template-columns: 1fr; }
  .btn { padding: 0.6rem 1rem; font-size: 0.9rem; }
  .btn-row { gap: 0.5rem; }
  .explore-grid { grid-template-columns: 1fr; }
  .leaderboard-table { font-size: 0.8rem; }
  .leaderboard-table th,
  .leaderboard-table td { padding: 0.5rem 0.4rem; font-size: 0.78rem; }
  .leaderboard-table .rank { width: 2rem; }
  .leaderboard-note { font-size: 0.75rem; }
  .section-title { font-size: 1.5rem; }
  .section-subtitle { font-size: 0.9rem; }
  .code-block { font-size: 0.72rem; padding: 1rem; }
  .citation-block pre { font-size: 0.7rem; overflow-x: auto; }
  .detail-grid { grid-template-columns: 1fr; gap: 0.5rem; }
  .detail-item .detail-val { font-size: 0.9rem; }
  .detail-item .detail-label { font-size: 0.65rem; }
  .hero-tagline { font-size: 1.1rem; }
}

/* Hints that depend on whether the device can hover */
.on-touch { display: none; }
@media (hover: none) {
  .on-hover { display: none !important; }
  .on-touch { display: inline; }
}