:root {
  --bg: #ffffff;
  --ink: #20242a;
  --ink-2: #4e5966;
  --muted: #5f6873;
  --line: #e1e6ed;
  --soft: #f5f6f8;
  --accent: #ff4d4d;
  --accent-text: #c92a2a;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --ink: #f3f5f7;
    --ink-2: #c5ccd6;
    --muted: #8f9aa7;
    --line: #262d36;
    --soft: #15191f;
    --accent-text: #ff6b6b;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 720px; margin: 0 auto; padding-inline: 20px; }

header.site { padding-block: 22px; border-bottom: 1px solid var(--line); }
.brand { color: var(--ink); text-decoration: none; font-weight: 700; font-size: 19px; letter-spacing: -0.01em; }
.brand span { color: var(--accent); }

main { padding-block: 48px 72px; }
h1 { font-size: clamp(28px, 5vw, 40px); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 12px; text-wrap: balance; }
h2 { font-size: 20px; line-height: 1.3; margin: 40px 0 10px; letter-spacing: -0.01em; }
p, li { color: var(--ink-2); max-width: 65ch; }
ul { padding-left: 1.2em; }
li + li { margin-top: 4px; }
strong { color: var(--ink); }
a { color: var(--accent-text); }
.updated { color: var(--muted); font-size: 14px; margin: 0 0 32px; }

.box { background: var(--soft); border-radius: 12px; padding: 18px 20px; margin: 20px 0; }
.box p { margin: 0; }
.box p + p { margin-top: 8px; }

table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; }
.table-scroll { overflow-x: auto; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); color: var(--ink-2); }
th { color: var(--ink); font-weight: 600; }

footer.site { border-top: 1px solid var(--line); padding-block: 22px 32px; font-size: 14px; color: var(--muted); }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
footer.site nav { display: flex; gap: 18px; flex-wrap: wrap; }
footer.site a { color: var(--muted); }
footer.site a:hover { color: var(--ink); }