:root {
  --bg: #f7f8fa;
  --text: #0f172a;
  --muted: #5b6575;
  --green: #22c55e;
  --red: #e10600;
  --border: #e2e8f0;
  --panel: #fff;
  --map-frame: #e8ebe8;
  --map-pad: #d4d8d4;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}
body.theme-night {
  --bg: #0b1220;
  --text: #e8eef7;
  --muted: #94a3b8;
  --border: #1e293b;
  --panel: #111827;
  --map-frame: #0f172a;
  --map-pad: #1a2332;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.45;
  transition: background .3s, color .3s;
}
.page { max-width: 1100px; margin: 0 auto; padding: 1rem 1rem 2.5rem; }
.sandbox-badge {
  display: inline-block; margin: 0 0 0.5rem; padding: 0.25rem 0.65rem;
  border-radius: 999px; background: #fef3c7; color: #92400e;
  font-size: 0.72rem; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase;
}
body.theme-night .sandbox-badge { background: #78350f; color: #fde68a; }
.top h1 { margin: 0; font-size: clamp(1.35rem, 4vw, 1.85rem); letter-spacing: -0.02em; }
.tag { margin: 0.35rem 0 0; color: var(--muted); font-size: 0.92rem; }
.back-link {
  display: inline-block; margin: 0 0 0.75rem; color: var(--muted);
  font-size: 0.85rem; font-weight: 700; text-decoration: none;
}
.back-link:hover { color: var(--green); }
.main { display: grid; gap: 1.25rem; margin-top: 1.15rem; }
@media (min-width: 820px) {
  .main { grid-template-columns: 1.45fr 0.85fr; align-items: start; }
}
.map-wrap {
  background: var(--panel); border: 1px solid var(--border); border-radius: 18px;
  padding: 0.75rem; box-shadow: 0 4px 18px rgba(15,23,42,0.06);
}
.track-map { display: block; width: 100%; height: auto; }
.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: 18px;
  padding: 1.15rem 1.25rem 1.35rem; box-shadow: 0 4px 18px rgba(15,23,42,0.06);
}
.panel h2 { margin: 0 0 0.35rem; font-size: 1.05rem; }
.pole-driver { margin: 0; font-size: 1.25rem; font-weight: 800; letter-spacing: -0.02em; }
.pole-event { margin: 0.15rem 0 0.85rem; color: var(--muted); font-size: 0.88rem; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; margin: 0 0 1rem; }
.stats div { background: #f1f5f9; border-radius: 12px; padding: 0.65rem 0.75rem; }
body.theme-night .stats div { background: #1e293b; }
.stats dt {
  margin: 0; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--muted);
}
.stats dd { margin: 0.15rem 0 0; font-size: 1.1rem; font-weight: 800; }
.note, .zone, .groove-label { margin: 0 0 0.75rem; font-size: 0.88rem; color: var(--muted); }
.groove-label strong { color: var(--green); }
.approx-warn {
  margin: 0 0 0.85rem; padding: 0.5rem 0.7rem; border-radius: 10px;
  background: #fff7ed; color: #9a3412; font-size: 0.8rem; font-weight: 600;
}
body.theme-night .approx-warn { background: #431407; color: #fdba74; }
.controls { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.btn {
  appearance: none; border: none; border-radius: 999px; padding: 0.55rem 1.1rem;
  background: #111; color: #fff; font: inherit; font-size: 0.88rem; font-weight: 700; cursor: pointer;
}
body.theme-night .btn { background: #e2e8f0; color: #0f172a; }
.btn-ghost { background: #fff; color: var(--text); border: 1px solid var(--border); }
body.theme-night .btn-ghost { background: transparent; color: var(--text); }
.live {
  display: flex; align-items: center; gap: 0.45rem; margin: 1rem 0 0;
  font-variant-numeric: tabular-nums; font-weight: 700; font-size: 0.92rem;
}
.live-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 0 0 rgba(34,197,94,0.5); animation: pulse 1.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34,197,94,0.45); }
  70% { box-shadow: 0 0 0 8px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}
.foot { margin-top: 1.5rem; color: var(--muted); font-size: 0.8rem; }
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.5rem 0 0; }
.chip {
  display: inline-block; padding: 0.2rem 0.55rem; border-radius: 999px;
  font-size: 0.72rem; font-weight: 700; background: #e2e8f0; color: #334155;
}
body.theme-night .chip { background: #1e293b; color: #cbd5e1; }
.chip.night { background: #312e81; color: #c7d2fe; }
.chip.day { background: #fef08a; color: #854d0e; }
.chip.groove { background: #dcfce7; color: #166534; }
body.theme-night .chip.groove { background: #14532d; color: #bbf7d0; }

/* Hub */
.hub-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.85rem; margin-top: 1.25rem;
}
.hub-card {
  display: block; text-decoration: none; color: inherit;
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 0.9rem 1rem; transition: border-color .15s, transform .15s;
}
.hub-card:hover { border-color: var(--green); transform: translateY(-2px); }
.hub-card h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.hub-card p { margin: 0; color: var(--muted); font-size: 0.8rem; }
.hub-meta { margin-top: 0.55rem; display: flex; flex-wrap: wrap; gap: 0.3rem; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; align-items: center; }
.filter-bar input {
  flex: 1; min-width: 180px; padding: 0.55rem 0.85rem; border-radius: 999px;
  border: 1px solid var(--border); background: var(--panel); color: var(--text); font: inherit;
}
.legend-row { display: flex; flex-wrap: wrap; gap: 1rem; margin: 0.75rem 0 0; font-size: 0.8rem; color: var(--muted); }
.legend-swatch { display: inline-block; width: 18px; height: 3px; vertical-align: middle; margin-right: 0.35rem; border-radius: 2px; }
.legend-swatch.low { background: #38bdf8; }
.legend-swatch.high { background: #f472b6; }