:root {
    color-scheme: light;
    --ink: #1c1917;
    --muted: #57534e;
    --line: #e7e5e4;
    --paper: #f6f3ee;
    --card: #fffcf8;
    --red: #c2410c;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(194, 65, 12, 0.08), transparent 28rem),
        var(--paper);
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.page {
    max-width: 1240px;
    margin: 0 auto;
    padding: 28px 20px 48px;
}

.nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 18px;
}

.nav a {
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--card);
    color: var(--ink);
    font-size: 14px;
    text-decoration: none;
}

.nav a[aria-current="page"] {
    border-color: var(--red);
    background: var(--red);
    color: white;
}

h1 {
    margin: 6px 0 8px;
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.15;
}

.intro {
    margin: 0 0 18px;
    max-width: 40rem;
    color: var(--muted);
}

.intro a { font-weight: 600; }

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

.filters.compact { grid-template-columns: minmax(0, 360px); }

label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 12px;
    color: var(--muted);
}

input, select {
    width: 100%;
    height: 40px;
    padding: 0 12px;
    border: 1px solid #d6d3d1;
    border-radius: 10px;
    background: white;
    color: var(--ink);
    font: inherit;
    font-size: 14px;
}

input:focus, select:focus {
    outline: 2px solid rgba(194, 65, 12, 0.25);
    border-color: var(--red);
}

.summary {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin: 0 0 10px;
    color: var(--muted);
    font-size: 14px;
}

.facts {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 0 0 16px;
}

.facts div {
    min-width: 140px;
    padding: 12px 14px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
}

.facts dt {
    color: var(--muted);
    font-size: 12px;
}

.facts dd {
    margin: 4px 0 0;
    font-size: 18px;
    font-weight: 700;
}

.table-wrap {
    overflow-x: auto;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 16px;
}

.table-wrap.loading { opacity: 0.55; }

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 640px;
}

th, td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--line);
    white-space: nowrap;
}

th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: #292524;
    color: #fafaf9;
    font-size: 13px;
    font-weight: 600;
}

td.name, td.car, td.racer { white-space: normal; }

tbody tr:last-child td { border-bottom: 0; }

tbody tr:hover td { background: #fff7ed; }

.lap {
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    color: var(--red);
}

.rank {
    display: inline-grid;
    place-items: center;
    min-width: 28px;
    height: 28px;
    border-radius: 999px;
    background: #f5f5f4;
    font-variant-numeric: tabular-nums;
    font-weight: 700;
}

.rank-1 { background: #fde68a; color: #b45309; }
.rank-2 { background: #e7e5e4; color: #57534e; }
.rank-3 { background: #ffedd5; color: #9a3412; }

.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    background: #f5f5f4;
    font-size: 12px;
}

.tag-0 { background: #dcfce7; color: #166534; }
.tag-1 { background: #ffedd5; color: #9a3412; }
.tag-2, .tag-3 { background: #fee2e2; color: #991b1b; }
.tag--1 { background: #e7e5e4; color: #44403c; }

a { color: var(--red); text-underline-offset: 3px; }

.empty, .error {
    margin: 0;
    padding: 36px 16px;
    text-align: center;
    color: var(--muted);
}

.error { color: #b91c1c; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

@media (max-width: 640px) {
    .filters { grid-template-columns: 1fr; }
}