/* FateryBench — matches Fatery.me design system */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --bg: #0A0E1A;
  --bg-card: #0F1524;
  --bg-surface: #131B2D;
  --bg-muted: #1A1E2E;
  --bg-secondary: #1F1F2E;
  --border: #242836;
  --border-light: rgba(36, 40, 54, 0.5);
  --text: #EBEBEB;
  --text-secondary: #B8B8B8;
  --text-muted: #7A7A7A;
  --text-dim: #616161;
  --primary: #D4A574;
  --primary-dim: rgba(212, 165, 116, 0.15);
  --primary-glow: rgba(217, 160, 67, 0.08);
  --accent-blue: #5B7FC7;
  --glow-warm: #D9A043;
  --glow-cool: #4B8FD4;
  --green: #4CAF50;
  --red: #E57373;
  --gold: #D4A574;
  --silver: #B8B8B8;
  --bronze: #A0826D;
  --human-blue: #64B5F6;
  --radius: 1rem;
  --radius-sm: calc(1rem - 4px);
  --max-width: 1100px;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Hero --- */
.hero {
  text-align: center;
  padding: 80px 0 48px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 700px; height: 500px;
  background: radial-gradient(ellipse, var(--primary-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
  color: var(--primary);
}

.hero .subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 48px;
  font-weight: 300;
  line-height: 1.7;
}

.stats-row {
  display: flex;
  justify-content: center;
  gap: 56px;
  flex-wrap: wrap;
}

.stat { text-align: center; }

.stat .number {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--text);
}

.stat .label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 2px;
}

/* --- Section --- */
section { margin-bottom: 64px; }

.section-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.section-note {
  margin-bottom: 24px;
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
}

.section-note a {
  color: var(--primary);
  text-decoration: none;
  opacity: 0.8;
}

.section-note a:hover {
  opacity: 1;
  text-decoration: underline;
}

.section-divider {
  border: none;
  border-top: 1px solid var(--border-light);
  margin-bottom: 64px;
}

/* --- Key Findings Grid --- */
.findings-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.finding-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.finding-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--primary);
}

.finding-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary);
  margin-bottom: 10px;
}

.finding-stat {
  font-family: var(--font-serif);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.finding-stat.blue { color: var(--human-blue); }
.finding-stat.green { color: var(--green); }
.finding-stat.dim { color: var(--text-secondary); }

.finding-desc {
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-top: 10px;
  line-height: 1.5;
}

/* --- Leaderboard Table --- */
.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.leaderboard-table thead th {
  background: var(--bg-surface);
  padding: 12px 16px;
  text-align: left;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}

.leaderboard-table tbody tr {
  transition: background 0.15s;
}

.leaderboard-table tbody tr:hover {
  background: var(--bg-surface);
}

.leaderboard-table tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.9rem;
}

.leaderboard-table tbody tr:last-child td {
  border-bottom: none;
}

.rank {
  font-family: var(--font-serif);
  font-weight: 600;
  width: 48px;
  text-align: center;
  font-size: 1rem;
}

.rank-1 { color: var(--gold); }
.rank-2 { color: var(--silver); }
.rank-3 { color: var(--bronze); }

.model-name { font-weight: 500; }

.model-provider {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.fatery-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--primary-dim);
  border: 1px solid rgba(212, 165, 116, 0.3);
  color: var(--primary);
  font-size: 0.65rem;
  font-weight: 600;
  margin-left: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.human-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(100, 181, 246, 0.12);
  border: 1px solid rgba(100, 181, 246, 0.3);
  color: var(--human-blue);
  font-size: 0.65rem;
  font-weight: 600;
  margin-left: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.human-row td {
  border-bottom: 2px dashed rgba(100, 181, 246, 0.2) !important;
}

.random-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(122, 122, 122, 0.1);
  border: 1px solid rgba(122, 122, 122, 0.25);
  color: var(--text-dim);
  font-size: 0.65rem;
  font-weight: 600;
  margin-left: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.random-row td {
  border-top: 2px dashed rgba(122, 122, 122, 0.2) !important;
}

.random-row .model-name {
  color: var(--text-dim);
}

.accuracy-bar.random {
  background: var(--text-dim);
}

.human-row .model-name {
  color: var(--human-blue);
}

.accuracy-bar.human {
  background: var(--human-blue);
}

.note-icon {
  cursor: help;
  font-size: 0.75rem;
  margin-left: 4px;
  opacity: 0.5;
}

.accuracy-cell {
  font-family: var(--font-sans);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.accuracy-bar {
  display: inline-block;
  height: 3px;
  border-radius: 2px;
  background: var(--primary);
  margin-left: 8px;
  vertical-align: middle;
  opacity: 0.6;
}

.approach-label {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* --- Lift Section --- */
.lift-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
}

.lift-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
}

.lift-model {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
}

.lift-sub {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.lift-bars {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.lift-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lift-row-label {
  width: 100px;
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: right;
  flex-shrink: 0;
  white-space: nowrap;
}

.lift-bar-track {
  flex: 1;
  height: 28px;
  background: var(--bg-muted);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.lift-bar-fill {
  height: 100%;
  border-radius: 6px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 0.8rem;
  font-weight: 600;
  transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.lift-bar-fill.baseline {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.lift-bar-fill.fatery {
  background: linear-gradient(135deg, var(--primary) 0%, var(--glow-warm) 100%);
  color: var(--bg);
}

.lift-bar-fill.human-bar {
  background: linear-gradient(135deg, var(--human-blue) 0%, #42A5F5 100%);
  color: var(--bg);
}

.lift-bar-fill.random-bar {
  background: var(--bg-secondary);
  border: 1px dashed var(--text-dim);
  color: var(--text-dim);
}

.lift-delta {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--green);
  width: 56px;
  text-align: center;
  flex-shrink: 0;
}

/* --- Approach Grid --- */
.approach-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.approach-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.approach-card h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.approach-card .desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 14px;
}

.code-block {
  border-radius: var(--radius-sm);
  padding: 16px;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.78rem;
  line-height: 1.7;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
}

.code-block.muted { color: var(--text-dim); }
.code-block.accent { color: var(--primary); }

/* --- Charts Grid --- */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.chart-card h3 {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.bar-chart .bar-item {
  display: flex;
  align-items: center;
  margin-bottom: 6px;
  gap: 12px;
}

.bar-chart .bar-label {
  width: 120px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: right;
  flex-shrink: 0;
}

.bar-chart .bar-track {
  flex: 1;
  height: 22px;
  background: var(--bg-muted);
  border-radius: 4px;
  overflow: hidden;
}

.bar-chart .bar-fill {
  height: 100%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--glow-warm) 100%);
  border-radius: 4px;
  display: flex;
  align-items: center;
  padding: 0 8px;
  font-size: 0.72rem;
  font-weight: 600;
  min-width: 32px;
  color: var(--bg);
  transition: width 0.6s ease;
}

/* =========================
   Results Explorer
   ========================= */
.explorer-filters {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.filter-group label {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.filter-group select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-family: var(--font-sans);
  cursor: pointer;
  min-width: 140px;
}

.filter-group select:focus {
  outline: none;
  border-color: var(--primary);
}

.filter-stats {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 6px 0;
  margin-left: auto;
}

.explorer-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}

.explorer-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  min-width: 900px;
}

.explorer-table thead th {
  background: var(--bg-surface);
  padding: 10px 10px;
  text-align: center;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
  position: sticky;
  top: 0;
  z-index: 2;
}

.explorer-table thead th:first-child,
.explorer-table thead th:nth-child(3),
.explorer-table thead th:nth-child(4) {
  text-align: left;
}

.explorer-table thead th.col-model {
  min-width: 56px;
  max-width: 72px;
}

.model-col-name {
  display: block;
  font-size: 0.62rem;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.model-col-acc {
  display: block;
  font-size: 0.6rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.explorer-row {
  cursor: pointer;
  transition: background 0.12s;
}

.explorer-row:hover {
  background: var(--bg-surface);
}

.explorer-row.expanded {
  background: var(--bg-surface);
}

.explorer-table tbody td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-light);
}

.col-id {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.72rem;
  color: var(--text-dim);
  text-align: center;
  width: 48px;
}

.col-source {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  width: 48px;
}

.col-cat {
  font-size: 0.78rem;
  color: var(--text-secondary);
  width: 48px;
}

.col-question {
  max-width: 200px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.col-answer {
  text-align: center;
  width: 36px;
}

.correct-answer {
  font-weight: 600;
  color: var(--green);
}

.model-cell {
  text-align: center;
  font-weight: 600;
  width: 48px;
  font-size: 0.8rem;
}

.model-cell.correct {
  color: var(--green);
}

.model-cell.wrong {
  color: var(--red);
  opacity: 0.7;
}

.model-cell.empty {
  color: var(--text-dim);
  opacity: 0.3;
}

/* Explorer Detail Row */
.explorer-detail td {
  padding: 0 !important;
  border-bottom: 2px solid var(--border) !important;
}

.detail-content {
  display: flex;
  gap: 24px;
  padding: 16px 20px;
  background: var(--bg-surface);
}

.detail-left {
  flex: 1;
}

.detail-birth {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  color: var(--primary);
  margin-bottom: 8px;
  opacity: 0.85;
}

.detail-q {
  font-weight: 500;
  margin-bottom: 10px;
  font-size: 0.92rem;
}

.detail-options {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-option {
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.detail-option.correct {
  background: rgba(76, 175, 80, 0.1);
  border: 1px solid rgba(76, 175, 80, 0.25);
  color: var(--green);
  font-weight: 500;
}

.detail-right {
  width: 280px;
  flex-shrink: 0;
}

.detail-models-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.detail-models-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-model-result {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 0.82rem;
}

.detail-model-result.correct {
  background: rgba(76, 175, 80, 0.06);
}

.detail-model-result.wrong {
  background: rgba(229, 115, 115, 0.06);
}

.detail-model-name {
  flex: 1;
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.78rem;
}

.detail-model-answer {
  font-weight: 700;
  width: 24px;
  text-align: center;
}

.detail-model-result.correct .detail-model-answer {
  color: var(--green);
}

.detail-model-result.wrong .detail-model-answer {
  color: var(--red);
}

.detail-model-status {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  width: 52px;
  text-align: right;
}

.detail-model-result.correct .detail-model-status {
  color: var(--green);
}

.detail-model-result.wrong .detail-model-status {
  color: var(--red);
  opacity: 0.6;
}

/* Pagination */
.explorer-pagination {
  display: flex;
  gap: 4px;
  justify-content: center;
  margin-top: 16px;
  flex-wrap: wrap;
}

.page-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.15s;
}

.page-btn:hover {
  background: var(--bg-surface);
  color: var(--text);
}

.page-btn.active {
  background: var(--primary-dim);
  border-color: var(--primary);
  color: var(--primary);
}

/* --- Footer --- */
footer {
  text-align: center;
  padding: 40px 0;
  border-top: 1px solid var(--border-light);
  color: var(--text-dim);
  font-size: 0.8rem;
}

footer a {
  color: var(--primary);
  text-decoration: none;
  opacity: 0.8;
}

footer a:hover {
  opacity: 1;
  text-decoration: underline;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.2rem; }
  .hero .subtitle { font-size: 1rem; }
  .stats-row { gap: 28px; }
  .stat .number { font-size: 1.8rem; }
  .charts-grid, .approach-grid { grid-template-columns: 1fr; }
  .findings-grid { grid-template-columns: repeat(2, 1fr); }
  .leaderboard-table { font-size: 0.82rem; }
  .leaderboard-table thead th,
  .leaderboard-table tbody td { padding: 10px 10px; }
  .lift-row-label { width: 80px; font-size: 0.7rem; }
  .bar-chart .bar-label { width: 90px; font-size: 0.75rem; }
  .explorer-filters { flex-direction: column; }
  .filter-group select { min-width: 100%; }
  .filter-stats { margin-left: 0; }
  .detail-content { flex-direction: column; }
  .detail-right { width: 100%; }
}