:root {
  color-scheme: light dark;
  --bg: #f0f0f0;
  --ink: #333333;
  --muted: #5c6570;
  --accent: #368ee4;
  --card: #ffffff;
  --line: #d5d8de;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --ink: #ffffff;
    --muted: #c5c8ce;
    --card: #141414;
    --line: #2a2a2a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.45;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.25rem 1rem 3rem;
}

header {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1rem 1rem 0;
}

.mark {
  margin: 0;
  color: var(--accent);
  font-weight: 650;
  letter-spacing: 0.01em;
}

h1 {
  font-size: 1.75rem;
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

h2 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.5rem;
}

p { margin: 0.4rem 0; }

a { color: var(--accent); }

.muted { color: var(--muted); }

.card, .row, .table {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.card { padding: 1rem; margin: 0.75rem 0; }

.row {
  display: block;
  padding: 0.75rem 1rem;
  margin: 0.4rem 0;
  text-decoration: none;
  color: inherit;
}

.score { font-variant-numeric: tabular-nums; font-weight: 650; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
}

th, td {
  text-align: left;
  padding: 0.45rem 0.5rem;
  border-bottom: 1px solid var(--line);
  font-variant-numeric: tabular-nums;
}

th { color: var(--muted); font-weight: 600; }