:root {
  --primary: #1a1a2e;
  --primary-light: #16213e;
  --accent: #0f3460;
  --accent-bright: #e94560;
  --bg: #f8f9fc;
  --bg-card: #ffffff;
  --text: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --success: #10b981;
  --success-bg: #ecfdf5;
  --fail: #ef4444;
  --fail-bg: #fef2f2;
  --hover-row: #f9fafb;
  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 150ms ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

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

/* ─── Header ─── */
.site-header {
  background: var(--primary);
  color: #fff;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.site-header .logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: #fff;
  text-decoration: none;
}

.site-header .logo:hover { opacity: 0.9; text-decoration: none; }
.site-header .logo .icon { font-size: 22px; }

.site-header nav {
  display: flex;
  gap: 24px;
  margin-left: 32px;
}

.site-header nav a {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  font-weight: 500;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}

.site-header nav a:hover,
.site-header nav a.active {
  color: #fff;
  border-bottom-color: var(--accent-bright);
  text-decoration: none;
}

.back-btn {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: rgba(255,255,255,0.85);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 5px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.back-btn:hover {
  background: rgba(255,255,255,0.2);
  color: #fff;
  text-decoration: none;
}

/* ─── Breadcrumb ─── */
.breadcrumb {
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--transition);
}

.breadcrumb a:hover { color: var(--accent); text-decoration: none; }
.breadcrumb .sep { color: var(--text-muted); user-select: none; }
.breadcrumb .current { color: var(--text); font-weight: 500; }

/* ─── Container ─── */
.container {
  max-width: 2200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* ─── Filter Bar ─── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px 16px;
  flex-wrap: wrap;
}

.filter-select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%239CA3AF'/%3E%3C/svg%3E") no-repeat right 10px center;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 30px 7px 12px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  transition: border-color var(--transition);
  min-width: 160px;
}

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

.filter-clear {
  font-size: 13px;
  color: var(--accent-bright);
  cursor: pointer;
  font-weight: 500;
  margin-left: auto;
}

.filter-clear:hover { text-decoration: underline; }

/* ─── Table Footer ─── */
.table-footer {
  padding: 12px 20px;
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-light);
  text-align: center;
}

.table-declaration {
  padding: 16px 20px;
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.8;
  border-top: 1px solid var(--border-light);
}

.table-declaration a {
  color: var(--accent);
  font-weight: 600;
}

.table-declaration a:hover { color: var(--accent-bright); }

.agent-name {
  font-weight: 600;
  color: var(--accent);
}

.scaffold-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.scaffold-link:hover {
  text-decoration: underline;
  color: var(--accent-bright);
}

.scaffold-filter-wrap {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.scaffold-visit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--transition);
}

.scaffold-visit-btn:hover {
  background: var(--accent-bright);
  text-decoration: none;
}

/* ─── Page Title ─── */
.page-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
  letter-spacing: -0.5px;
}

.page-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ─── Table ─── */
.table-wrapper {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow-x: auto;
  margin-bottom: 32px;
}

.table-toolbar {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
  gap: 12px;
  flex-wrap: wrap;
}

.table-toolbar .entries-info {
  font-size: 13px;
  color: var(--text-secondary);
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  transition: border-color var(--transition);
}

.search-box:focus-within { border-color: var(--accent); }

.search-box input {
  border: none;
  background: transparent;
  font-size: 13px;
  outline: none;
  color: var(--text);
  width: 200px;
}

.search-box .icon { color: var(--text-muted); font-size: 14px; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table thead th {
  background: var(--bg);
  padding: 8px 8px;
  text-align: left;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  position: relative;
  transition: background var(--transition);
}

.data-table thead th:hover { background: var(--border-light); }

.data-table thead th .sort-icon {
  display: inline-block;
  margin-left: 4px;
  font-size: 10px;
  color: var(--text-muted);
  transition: color var(--transition);
}

.data-table thead th.sort-active .sort-icon { color: var(--accent); }

.data-table thead th.col-rank { width: 50px; text-align: center; }
.data-table thead th.col-num { text-align: right; }
.data-table thead th.col-avg,
.data-table tbody td.col-avg { padding-right: 20px; }

.data-table tbody tr {
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  transition: background var(--transition);
}

.data-table tbody tr:hover { background: var(--hover-row); }
.data-table tbody tr:last-child { border-bottom: none; }

.data-table tbody td {
  padding: 8px 8px;
  vertical-align: middle;
  white-space: nowrap;
}

.data-table tbody td.col-rank {
  text-align: center;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 13px;
}

.data-table tbody td.col-num { text-align: right; font-variant-numeric: tabular-nums; }

.rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
}

.rank-1 { background: #fef3c7; color: #92400e; }
.rank-2 { background: #e5e7eb; color: #374151; }
.rank-3 { background: #fed7aa; color: #9a3412; }

.model-name { font-weight: 600; color: var(--text); }
.model-org { font-size: 12px; color: var(--text-secondary); margin-top: 1px; }

.rate-cell { font-variant-numeric: tabular-nums; }
.rate-good { color: var(--success); font-weight: 600; }


/* ─── Detail Page ─── */
.detail-header {
  margin: 24px 0 8px;
}

.detail-header .model-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.3px;
}

.detail-header .model-org-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ─── Tabs ─── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 20px;
  margin-top: 16px;
}

.tab-btn {
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border: none;
  background: transparent;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition);
  white-space: nowrap;
}

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

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.tab-summary {
  font-size: 11px;
  color: var(--text-muted);
  margin-left: 6px;
}

/* ─── Case Detail (third level) — tbench-inspired card ─── */
.case-detail-page {
  margin: 24px 0;
}

.case-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  word-break: break-all;
  margin-bottom: 20px;
}

.detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 28px 32px;
  margin-bottom: 24px;
}

.detail-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}

.detail-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.detail-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border-light);
}

.detail-info-row:last-child { border-bottom: none; }

.detail-info-row .di-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.detail-info-row .di-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.result-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}

.result-badge.pass { background: var(--success-bg); color: #065f46; }
.result-badge.fail { background: var(--fail-bg); color: #991b1b; }

/* ─── Tool Usage Chart (animated) ─── */
.tool-chart-section {
  margin-top: 0;
}

.tool-chart-section h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}

.tool-bar-row {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  gap: 12px;
}

.tool-bar-label {
  font-size: 13px;
  color: var(--text-secondary);
  width: 160px;
  text-align: right;
  flex-shrink: 0;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-weight: 500;
}

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

.tool-bar-fill {
  height: 100%;
  border-radius: 6px;
  width: 0;
  transition: width 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.tool-bar-fill.bar-c0 { background: linear-gradient(90deg, #0f3460, #1a5276); }
.tool-bar-fill.bar-c1 { background: linear-gradient(90deg, #1a5276, #2980b9); }
.tool-bar-fill.bar-c2 { background: linear-gradient(90deg, #2980b9, #3498db); }
.tool-bar-fill.bar-c3 { background: linear-gradient(90deg, #6366f1, #818cf8); }
.tool-bar-fill.bar-c4 { background: linear-gradient(90deg, #8b5cf6, #a78bfa); }
.tool-bar-fill.bar-c5 { background: linear-gradient(90deg, #0ea5e9, #38bdf8); }

.tool-bar-count {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  width: 40px;
  text-align: right;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.4s ease 0.6s;
}

.tool-bar-count.visible { opacity: 1; }

/* ─── Pytest Detail ─── */
.pytest-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.pytest-card {
  text-align: center;
  padding: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.pytest-card .num {
  font-size: 24px;
  font-weight: 800;
}

.pytest-card .num.green { color: var(--success); }
.pytest-card .num.red { color: var(--fail); }
.pytest-card .num.orange { color: #f59e0b; }
.pytest-card .num.gray { color: var(--text-muted); }

.pytest-card .lbl {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ─── Resolved indicator in tables ─── */
.resolved-icon { font-size: 16px; }
.resolved-icon.pass { color: var(--success); }
.resolved-icon.fail { color: var(--fail); }

/* ─── Footer ─── */
.site-footer {
  text-align: center;
  padding: 32px 24px;
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-light);
  margin-top: 48px;
}

/* ─── Loading ─── */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 0;
  color: var(--text-muted);
  font-size: 14px;
  gap: 8px;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ─── Empty ─── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-state .icon { font-size: 36px; margin-bottom: 12px; }
.empty-state .msg { font-size: 14px; }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .scaffold-selector { flex-direction: column; }
  .scaffold-card { max-width: 100%; }
  .table-toolbar { flex-direction: column; align-items: flex-start; }
  .info-grid { grid-template-columns: 1fr 1fr; }
  .data-table { font-size: 12px; }
  .data-table thead th, .data-table tbody td { padding: 8px 8px; }
  .page-title { font-size: 22px; }
}