:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c2330;
  --border: #2b3440;
  --text: #e6edf3;
  --muted: #8b98a5;
  --accent: #3fb950;
  --accent-2: #58a6ff;
  --danger: #f85149;
  --warn: #d29922;
  --chip: #212834;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.45;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.topbar .brand { font-weight: 700; letter-spacing: .3px; color: var(--text); }
.topbar nav { display: flex; gap: 8px; margin-left: auto; }
.navlink { padding: 6px 12px; border-radius: 8px; background: var(--chip); color: var(--text); font-size: 14px; }
.navlink:hover { background: #2a323f; text-decoration: none; }

.container { max-width: 1400px; margin: 0 auto; padding: 20px; }
.container.wide { max-width: none; }
.page-title { font-size: 22px; margin: 4px 0 2px; }
.page-sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar label { color: var(--muted); font-size: 13px; }
select, input[type="text"] {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 3px 5px; font-size: 14px;
}
button.btn {
  background: var(--accent); color: #05230f; border: none; border-radius: 8px;
  padding: 8px 14px; font-weight: 600; cursor: pointer; font-size: 14px;
}
button.btn.secondary { background: var(--chip); color: var(--text); }
.status { color: var(--muted); font-size: 12px; margin-left: auto; }
.status .ok { color: var(--accent); }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

table.lb { width: 100%; border-collapse: collapse; font-size: 14px; }
table.lb th, table.lb td { padding: 3px 3px; text-align: left; border-bottom: 1px solid var(--border); }
table.lb thead th { cursor: pointer; user-select: none; color: var(--muted); font-weight: 600; position: sticky; top: 0; background: var(--panel); }
table.lb thead th:hover { color: var(--text); }
table.lb tbody tr:hover { background: #1b2230; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 6px; background: var(--chip); color: var(--accent-2); font-size: 12px; font-weight: 600; }
.gap-pos { color: var(--warn); font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }

.card-title { font-size: 15px; font-weight: 700; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.kv { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.kv .k { color: var(--muted); }
.kv .v { font-weight: 600; }

.lap-list { max-height: 520px; overflow: auto; }
table.laps { width: 100%; border-collapse: collapse; font-size: 13px; }
table.laps th, table.laps td { padding: 6px 10px; text-align: right; border-bottom: 1px solid var(--border); }
table.laps th:first-child, table.laps td:first-child { text-align: left; }
.best-lap .time { color: var(--accent); font-weight: 700; font-size: 28px; font-variant-numeric: tabular-nums; }

.chart-wrap { position: relative; height: 460px; }
.legend { display: flex; flex-wrap: wrap; gap: 12px; margin: 10px 0 16px; }
.legend label { display: flex; align-items: center; gap: 6px; font-size: 13px; cursor: pointer; }
.swatch { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }

.footer { text-align: center; color: var(--muted); font-size: 12px; padding: 18px; border-top: 1px solid var(--border); margin-top: 24px; }
.error-box { background: #2a1214; border: 1px solid var(--danger); color: #ffd7d5; padding: 12px 14px; border-radius: 10px; margin-bottom: 16px; }

@media (max-width: 720px) {
  .grid.two { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; }
}