:root {
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-text: #1a1a2e;
  --color-text-secondary: #6b7280;
  --color-primary: #2563eb;
  --color-positive: #16a34a;
  --color-negative: #dc2626;
  --color-border: #e5e7eb;
  --max-width: 960px;
  --radius: 8px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f172a;
    --color-surface: #1e293b;
    --color-text: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-border: #334155;
  }
}

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

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

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1rem;
}

header { margin-bottom: 2rem; }

.legend {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
  line-height: 1.5;
  padding: 0.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.subtitle {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

/* Charts */
.chart-container {
  position: relative;
  width: 100%;
  height: 400px;
}

@media (max-width: 600px) {
  .chart-container { height: 280px; }
}

/* Controls */
.controls {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  align-items: center;
}

.controls button {
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  font-size: 0.8rem;
  font-family: inherit;
  transition: background 0.15s, border-color 0.15s;
}

.controls button:hover { border-color: var(--color-primary); }

.controls button.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* CCAA Chips */
.ccaa-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.chip {
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  font-size: 0.75rem;
  font-family: inherit;
  transition: all 0.15s;
  white-space: nowrap;
}

.chip:hover { border-color: var(--color-primary); }

.chip.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* Summary text */
.summary-text {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

.summary-text .positive { color: var(--color-positive); }
.summary-text .negative { color: var(--color-negative); }

/* Table */
.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

#ccaa-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

#ccaa-table th {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 2px solid var(--color-border);
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  user-select: none;
}

#ccaa-table th:hover { color: var(--color-primary); }

#ccaa-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

#ccaa-table .row-national {
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
}

#ccaa-table .row-national .positive,
#ccaa-table .row-national .negative { color: #fff; }

#ccaa-table td.positive { color: var(--color-positive); }
#ccaa-table td.negative { color: var(--color-negative); }

/* Cross-links */
.cross-links h2 { margin-bottom: 0.75rem; }

.link-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 600px) {
  .link-grid { grid-template-columns: 1fr; }
}

.link-card {
  display: block;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.link-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.link-card strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--color-primary);
}

.link-card span {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

/* Misc */
.loading {
  text-align: center;
  padding: 3rem;
  color: var(--color-text-secondary);
}

.source-note {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-top: 0.75rem;
}

footer {
  max-width: var(--max-width);
  margin: 2rem auto 0;
  padding: 1.5rem 1rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

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