:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary: #64748b;
  --success: #22c55e;
  --warning: #f59e0b;
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-light: #64748b;
  --border: #e2e8f0;
  --radius: 8px;
}

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

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

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

a:hover {
  text-decoration: underline;
}

/* Header */
header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--text-light);
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  text-decoration: none;
}

.search-form {
  margin-left: auto;
}

.search-form input {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 200px;
}

/* Main */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.container {
  max-width: 1200px;
}

/* Hero */
.hero {
  text-align: center;
  padding: 3rem 0;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.hero p {
  color: var(--text-light);
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

.stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  color: var(--text-light);
}

/* Featured Leaderboards */
.featured {
  margin: 3rem 0;
}

.featured h2 {
  margin-bottom: 1.5rem;
}

.leaderboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

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

.leaderboard-card h3 {
  margin-bottom: 0.25rem;
}

.leaderboard-card .category {
  color: var(--text-light);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.mini-leaderboard {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.mini-leaderboard th,
.mini-leaderboard td {
  padding: 0.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.mini-leaderboard th {
  color: var(--text-light);
  font-weight: 500;
}

.mini-leaderboard .score {
  font-weight: 600;
  color: var(--primary);
}

.view-all {
  display: block;
  margin-top: 1rem;
  font-size: 0.875rem;
}

/* Category Grid */
.quick-links {
  margin: 3rem 0;
}

.quick-links h2 {
  margin-bottom: 1.5rem;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.category-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s;
}

.category-card:hover {
  border-color: var(--primary);
  text-decoration: none;
}

.category-card h3 {
  color: var(--text);
  margin-bottom: 0.25rem;
}

.category-card p {
  color: var(--text-light);
  font-size: 0.875rem;
}

/* Filters */
.filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.filter-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card-bg);
  color: var(--text);
  font-size: 0.875rem;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  text-decoration: none;
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

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

.card-category {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background: var(--bg);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.card h3 {
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--text-light);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.card-meta {
  font-size: 0.75rem;
  color: var(--text-light);
}

.card-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  font-size: 0.875rem;
}

/* Detail Pages */
.breadcrumb {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.detail-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.detail-header h1 {
  font-size: 2rem;
}

.category-badge {
  padding: 0.25rem 0.75rem;
  background: var(--primary);
  color: white;
  border-radius: 4px;
  font-size: 0.875rem;
}

.detail-content {
  display: grid;
  gap: 2rem;
}

.detail-info {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.detail-info dl {
  margin-top: 1rem;
}

.detail-info dt {
  font-weight: 600;
  margin-top: 1rem;
}

.detail-info dd {
  color: var(--text-light);
}

.detail-links {
  margin-top: 1.5rem;
  display: flex;
  gap: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.875rem;
}

.btn:hover {
  background: var(--primary-dark);
  text-decoration: none;
}

/* Leaderboard Table */
.leaderboard-section h2,
.scores-section h2 {
  margin-bottom: 1rem;
}

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

.leaderboard-table th,
.leaderboard-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.leaderboard-table th {
  background: var(--bg);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-light);
}

.leaderboard-table .rank {
  font-weight: 700;
  width: 60px;
}

.leaderboard-table .score {
  font-weight: 600;
  color: var(--primary);
}

.leaderboard-table .top-1 {
  background: #fef9c3;
}

.leaderboard-table .top-2 {
  background: #f1f5f9;
}

.leaderboard-table .top-3 {
  background: #fff7ed;
}

.benchmark-group-start {
  border-top: 2px solid var(--border);
}

/* Compare Form */
.compare-form {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.form-group select {
  width: 100%;
  max-width: 400px;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.form-group small {
  display: block;
  color: var(--text-light);
  font-size: 0.75rem;
  margin-top: 0.25rem;
}

/* Content Sections */
.content-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.content-section h2 {
  margin-bottom: 1rem;
}

.content-section ul {
  margin-left: 1.5rem;
}

.content-section li {
  margin-bottom: 0.5rem;
}

.content-section code {
  background: var(--bg);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-family: monospace;
}

/* Error Page */
.error-page {
  text-align: center;
  padding: 4rem 1rem;
}

.error-page h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.error-page p {
  color: var(--text-light);
  margin-bottom: 2rem;
}

.no-results {
  text-align: center;
  padding: 2rem;
  color: var(--text-light);
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-light);
  font-size: 0.875rem;
  border-top: 1px solid var(--border);
  margin-top: 3rem;
}

footer a {
  color: var(--text-light);
}

/* Responsive */
@media (max-width: 768px) {
  nav {
    flex-wrap: wrap;
  }
  
  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
    margin-top: 1rem;
  }
  
  .search-form {
    order: 2;
  }
  
  .hero h1 {
    font-size: 1.75rem;
  }
  
  .stats {
    gap: 2rem;
  }
  
  .stat-value {
    font-size: 2rem;
  }
}

/* How to Run Section */
.how-to-run {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.how-to-run h2 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.how-to-run pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.5;
}

.how-to-run code {
  font-family: 'SF Mono', 'Fira Code', monospace;
}

/* Cost Table */
.cost-table-wrapper {
  overflow-x: auto;
}

.cost-table .value-score {
  font-weight: 700;
  color: var(--success);
}

.cost-legend {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-top: 2rem;
}

.cost-legend h3 {
  margin-bottom: 0.5rem;
}

.cost-legend p {
  color: var(--text-light);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

/* Price display in model cards */
.price-tag {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background: #dcfce7;
  color: #166534;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* API Documentation */
.lead {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

.api-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.api-section h2 {
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.api-endpoint {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.api-endpoint:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.api-endpoint h3 {
  color: var(--primary);
  font-family: monospace;
  margin-bottom: 0.5rem;
}

.api-endpoint p {
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.api-section pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.875rem;
}

.api-section code {
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.api-section details {
  margin-top: 0.5rem;
}

.api-section summary {
  cursor: pointer;
  color: var(--primary);
  font-size: 0.875rem;
}