:root {
  --paper: #FFFCF0;
  --bg: #F2F0E5;
  --border: #CECDC3;
  --ink: #100F0F;
  --muted: #6F6E69;
  --header-bg: #E6E4D9;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, Helvetica, Arial, sans-serif;
  background: var(--paper);
  color: var(--ink);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #2C3E50;
  color: #fff;
  padding: 0 24px;
  height: 56px;
}

.topbar .title {
  font-size: 1.15rem;
  font-weight: 600;
}

.tabs {
  display: flex;
  gap: 4px;
}

.tab-btn {
  background: transparent;
  border: none;
  color: #cfd8e3;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 0.95rem;
  border-radius: 4px;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

.tab-btn.active {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-weight: 600;
}

main {
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.controls {
  margin-bottom: 20px;
}

.controls.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.controls label {
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

.controls select {
  font-size: 1rem;
  padding: 4px 8px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px;
  margin-bottom: 20px;
  overflow-x: auto;
}

.table-scroll {
  overflow-x: auto;
  width: 100%;
}

.card h3 {
  margin: 0 0 12px 0;
  font-size: 1rem;
  font-weight: 600;
}

.card .season-label {
  font-weight: 600;
  margin: 0 0 10px 0;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.95rem;
}

th, td {
  border: 1px solid var(--border);
  padding: 10px 16px;
  text-align: center;
}

th {
  background: var(--header-bg);
  font-weight: 600;
}

.base-label {
  text-align: left;
  font-weight: 500;
  background: var(--bg);
}

/* freq/rv tables are denser */
.freq-table, .rv-table {
  font-size: 0.85rem;
}

.freq-table th, .freq-table td,
.rv-table th, .rv-table td {
  padding: 6px 10px;
  white-space: nowrap;
}

.freq-table .state-col {
  position: sticky;
  left: 0;
  z-index: 1;
}

.freq-table .empty { color: #B7B5AC; }
.freq-table .count { font-weight: 600; }
.freq-table .pct { font-size: 0.75rem; color: var(--muted); }

.dashboard-footer {
  padding: 10px 24px;
  font-size: 0.75rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  text-align: right;
}

.dashboard-footer a {
  color: var(--muted);
}