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

:root {
  --bg: #1a1a2e;
  --bg-surface: #16213e;
  --bg-table-odd: #1a1a2e;
  --bg-table-even: #16213e;
  --text: #e0e0e0;
  --text-muted: #8a8a9a;
  --accent: #e94560;
  --green: #4ade80;
  --red: #f87171;
  --yellow: #fbbf24;
  --border: #2a2a4a;
  --link: #60a5fa;
}

html {
  font-size: 16px;
}

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

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

a:hover {
  text-decoration: underline;
}

header {
  text-align: center;
  padding: 2rem 1rem 1rem;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 1.8rem;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

.controls {
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.controls label {
  font-weight: 600;
  font-size: 0.95rem;
}

.controls select {
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text);
  font-size: 0.95rem;
  cursor: pointer;
}

section {
  margin-bottom: 2rem;
}

h2 {
  font-size: 1.3rem;
  margin-bottom: 0.25rem;
  color: var(--accent);
}

h3 {
  font-size: 1.1rem;
  margin-top: 1.25rem;
  margin-bottom: 0.25rem;
  color: var(--text);
}

.section-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

thead th {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 2px solid var(--border);
  font-weight: 600;
  white-space: nowrap;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

th.sortable {
  cursor: pointer;
  user-select: none;
}

th.sortable:hover {
  color: var(--text);
}

th.sort-asc::after {
  content: " \25B2";
}

th.sort-desc::after {
  content: " \25BC";
}

tbody td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

tbody tr:nth-child(odd) {
  background: var(--bg-table-odd);
}

tbody tr:nth-child(even) {
  background: var(--bg-table-even);
}

tbody tr:hover {
  background: #1e2a4a;
}

.wr-high {
  color: var(--green);
  font-weight: 600;
}

.wr-low {
  color: var(--red);
  font-weight: 600;
}

.wr-neutral {
  color: var(--text);
}

.delta-positive {
  color: var(--green);
}

.delta-negative {
  color: var(--red);
}

.empty-state {
  color: var(--text-muted);
  font-style: italic;
  padding: 1rem 0;
}

footer {
  text-align: center;
  padding: 1.5rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
}

footer p {
  margin-bottom: 0.5rem;
}

@media (max-width: 600px) {
  header h1 {
    font-size: 1.4rem;
  }

  main {
    padding: 1rem 0.5rem;
  }

  table {
    font-size: 0.8rem;
  }

  thead th,
  tbody td {
    padding: 0.4rem 0.5rem;
  }
}