:root { --fg: #1d2125; --muted: #5b636b; --line: #e3e6ea; --accent: #1f5fbf; --bg: #ffffff; --soft: #f6f7f9; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; color: var(--fg); background: var(--bg); }
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; padding-top: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; font-size: 1.1rem; color: var(--fg); text-decoration: none; }
nav a { margin-left: 16px; color: var(--accent); text-decoration: none; }
nav a:first-child { margin-left: 0; }
nav a:hover, main a:hover, footer a:hover { text-decoration: underline; }
main { padding-top: 28px; padding-bottom: 40px; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 12px; }
h2 { font-size: 1.25rem; margin: 32px 0 8px; }
p, li { color: var(--fg); }
.lead { font-size: 1.1rem; color: var(--muted); }
.note { background: var(--soft); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; }
table { width: 100%; border-collapse: collapse; margin: 8px 0 16px; font-size: 0.95rem; }
th, td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); padding: 8px 6px; }
th { color: var(--muted); font-weight: 600; }
code { font-size: 0.85em; background: var(--soft); padding: 1px 4px; border-radius: 4px; word-break: break-all; }
a { color: var(--accent); }
footer { padding-top: 16px; padding-bottom: 32px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }
footer a { color: var(--muted); }
th, td { overflow-wrap: anywhere; }
main, header, footer { overflow-wrap: break-word; }
@media (max-width: 520px) { h1 { font-size: 1.55rem; } header { flex-direction: column; align-items: flex-start; } nav a { margin-left: 0; margin-right: 14px; } th, td { padding: 6px 4px; } }