:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --border-color: #e5e7eb;
  --accent-color: #4f46e5;
  --accent-hover: #4338ca;
  --rank-1: #fbbf24;
  --rank-2: #94a3b8;
  --rank-3: #b45309;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --border-color: #374151;
    --accent-color: #818cf8;
  }
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1000px;
  margin: 40px auto;
  padding: 0 20px;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.025em;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.table-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th {
  background-color: var(--bg-secondary);
  padding: 12px 24px;
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 16px 24px;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border-color);
}

tr:last-child td {
  border-bottom: none;
}

tr {
  transition: background-color 0.2s ease;
}

tr:hover {
  background-color: rgba(79, 70, 229, 0.05);
}

.rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.875rem;
}

.rank-1 {
  background-color: var(--rank-1);
  color: #000;
}

.rank-2 {
  background-color: var(--rank-2);
  color: #fff;
}

.rank-3 {
  background-color: var(--rank-3);
  color: #fff;
}

.score-cell {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  color: var(--accent-color);
}

.timestamp {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer {
  margin-top: 40px;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
}