:root {
  --bg: #f5f7f6;
  --card-bg: #ffffff;
  --text: #1c2321;
  --muted: #5b6b66;
  --border: #e1e6e4;
  --accent: #1f7a5c;
  --available: #d7f0e2;
  --available-text: #146c43;
  --booked: #fbdada;
  --booked-text: #a3242f;
  --past: #e7e7e7;
  --past-text: #7a7a7a;
  --tooltip-bg: #1c2321;
  --tooltip-text: #f5f7f6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121815;
    --card-bg: #1a2320;
    --text: #eef2f0;
    --muted: #9aada6;
    --border: #2a3733;
    --accent: #4fd1a5;
    --available: #163a2c;
    --available-text: #7fe3b4;
    --booked: #3a1c1f;
    --booked-text: #f39aa2;
    --past: #262e2b;
    --past-text: #8a938f;
    --tooltip-bg: #eef2f0;
    --tooltip-text: #121815;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

.topbar {
  padding: 2rem 1.5rem 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.topbar h1 { margin: 0 0 0.25rem; font-size: 1.8rem; }
.subtitle { margin: 0 0 1rem; color: var(--muted); }

.date-control {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--card-bg);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.date-control label { color: var(--muted); font-size: 0.9rem; }

.date-control input[type="date"] {
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.date-control button {
  padding: 0.35rem 0.8rem;
  border-radius: 6px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-weight: 600;
}

.date-control button:hover { background: var(--accent); color: white; }

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.venue-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
}

.venue-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
}

.venue-head h2 { margin: 0; font-size: 1.2rem; }

.official-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
}
.official-link:hover { text-decoration: underline; }

.meta { color: var(--muted); font-size: 0.85rem; margin: 0.3rem 0 1rem; }

.status-msg { color: var(--muted); font-size: 0.9rem; }
.status-msg.error { color: var(--booked-text); }
.status-msg.hidden { display: none; }

.schedule-grid {
  overflow-x: auto;
}

.schedule-grid table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.78rem;
}

.schedule-grid th, .schedule-grid td {
  border: 1px solid var(--border);
  padding: 0;
  text-align: center;
  min-width: 34px;
  height: 30px;
}

.schedule-grid th {
  background: transparent;
  color: var(--muted);
  font-weight: 500;
  height: auto;
  padding: 0.3rem 0;
}

.schedule-grid td.court-name {
  min-width: 110px;
  text-align: left;
  padding-left: 0.5rem;
  font-weight: 600;
  color: var(--text);
}

.cell {
  width: 100%;
  height: 100%;
  display: block;
  cursor: help;
}

.cell.available { background: var(--available); }
.cell.booked { background: var(--booked); }
.cell.past { background: var(--past); }

.cell-tooltip {
  position: fixed;
  z-index: 1000;
  background: var(--tooltip-bg);
  color: var(--tooltip-text);
  padding: 0.45rem 0.65rem;
  border-radius: 6px;
  font-size: 0.8rem;
  line-height: 1.4;
  max-width: 240px;
  white-space: pre-line;
  pointer-events: none;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

.cell-tooltip.hidden { display: none; }

.legend {
  display: flex;
  gap: 1rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}

.chip {
  font-size: 0.78rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}
.chip.available { background: var(--available); color: var(--available-text); }
.chip.booked { background: var(--booked); color: var(--booked-text); }
.chip.past { background: var(--past); color: var(--past-text); }

.booking-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.booking-list li {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  font-size: 0.88rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.booking-list .time { color: var(--muted); white-space: nowrap; }

.disclaimer {
  color: var(--muted);
  font-size: 0.8rem;
  margin: 0.5rem 0 0;
}

.vbs-help {
  color: var(--muted);
  font-size: 0.88rem;
}

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