:root {
  color-scheme: dark;
  --bg: #080a0c;
  --panel: #111519;
  --panel-2: #171c21;
  --line: #252c32;
  --text: #f4f6f7;
  --muted: #859099;
  --green: #a7db39;
  --cyan: #35c6d8;
  --orange: #ff7a32;
  --red: #ff4e4e;
  --purple: #c07af2;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% -20%, rgba(167, 219, 57, 0.12), transparent 34rem),
    radial-gradient(circle at 100% 40%, rgba(53, 198, 216, 0.07), transparent 32rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell { width: min(1100px, calc(100% - 48px)); margin: 0 auto; padding: 32px 0 56px; }
h1, h2, h3, p { margin: 0; }
h1 { font-size: 1.35rem; letter-spacing: -.04em; text-transform: uppercase; }
h1 span { color: var(--green); font-weight: 400; }
.eyebrow { color: var(--muted); font-size: .68rem; font-weight: 800; letter-spacing: .18em; margin-bottom: 6px; }

.topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; gap: 16px; flex-wrap: wrap; }
.nav { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 8px; max-width: 100%; }
.nav a, .nav button {
  color: var(--muted); text-decoration: none; font-size: .78rem; font-weight: 700;
  border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px;
  background: transparent; cursor: pointer; font-family: inherit;
}
.nav a.active, .nav a:hover, .nav button:hover { color: var(--text); border-color: #3a434b; }
.nav .username { color: var(--green); font-weight: 800; margin-right: 4px; }

.panel {
  border: 1px solid var(--line); background: var(--panel); border-radius: 14px;
  padding: 24px; min-width: 0; margin-bottom: 16px;
}
.panel h2, .panel h3 { margin-bottom: 16px; }

.form-row { margin-bottom: 16px; }
.form-row label { display: block; color: var(--muted); font-size: .68rem; font-weight: 800; letter-spacing: .1em; margin-bottom: 8px; }
.form-row input, .form-row select {
  width: 100%; background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px;
  padding: 11px 13px; color: var(--text); font-size: .92rem; font-family: inherit;
}
.form-row input:focus, .form-row select:focus { outline: none; border-color: var(--green); }

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--green); color: #0a0c0d; border: none; border-radius: 8px;
  padding: 12px 20px; font-weight: 800; font-size: .82rem; letter-spacing: .04em;
  cursor: pointer; font-family: inherit;
}
.button:hover { filter: brightness(1.08); }
.button.secondary { background: transparent; color: var(--text); border: 1px solid var(--line); }
.button:disabled { opacity: .5; cursor: not-allowed; }

.link-button { background: none; border: none; color: var(--cyan); cursor: pointer; font: inherit; padding: 0; }

.form-error { color: var(--red); font-size: .78rem; margin-top: -6px; margin-bottom: 16px; min-height: 1em; }
.form-hint { color: var(--muted); font-size: .78rem; margin-top: 14px; }

.auth-shell { width: min(420px, calc(100% - 48px)); margin: 8vh auto; }
.auth-shell .panel { padding: 32px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 8px; border-top: 1px solid var(--line); font-size: .84rem; }
th { color: var(--muted); font-size: .66rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
td.numeric, th.numeric { text-align: right; font-variant-numeric: tabular-nums; }
tr.own-row td { color: var(--green); }
.rank { color: var(--muted); width: 2.5em; }
td.fastest-sector, td.fastest-lap { color: var(--purple); font-weight: 800; }
tr.own-row td.fastest-sector, tr.own-row td.fastest-lap { color: var(--purple); }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-bottom: 16px; }
.stat-card { border: 1px solid var(--line); background: var(--panel); border-radius: 14px; padding: 18px 20px; }
.stat-card span { color: var(--muted); font-size: .64rem; font-weight: 800; letter-spacing: .12em; display: block; }
.stat-card strong { display: block; margin-top: 10px; font-size: 1.7rem; letter-spacing: -.04em; font-variant-numeric: tabular-nums; }

.filters { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 20px; }
.filters .form-row { margin-bottom: 0; min-width: 200px; }

.empty-state { color: var(--muted); font-size: .84rem; padding: 18px 0; text-align: center; }
.hidden { display: none !important; }
canvas.trend { width: 100%; height: 200px; display: block; }

.download-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin: 0; }
.download-facts div { border: 1px solid var(--line); background: var(--panel-2); border-radius: 12px; padding: 14px 16px; }
.download-facts dt { color: var(--muted); font-size: .64rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.download-facts dd { margin: 8px 0 0; font-size: .95rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.download-steps { color: var(--muted); font-size: .84rem; line-height: 1.7; margin: 0 0 16px; padding-left: 20px; }
.download-steps strong { color: var(--text); }
code {
  font-family: Consolas, "Cascadia Mono", monospace;
  font-size: .78rem;
  color: var(--cyan);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 6px;
  overflow-wrap: anywhere;
}

@media (max-width: 620px) {
  .shell { width: min(1100px, calc(100% - 24px)); padding-top: 20px; }
  .topbar { align-items: flex-start; }
  .nav { width: 100%; justify-content: flex-start; }
  .nav .username { flex-basis: 100%; margin: 0 0 2px; }
  .nav a, .nav button { padding: 7px 11px; }
  .panel { padding: 18px; overflow-x: auto; }
}