:root { color-scheme: light dark; --ink: #1c1c1c; --paper: #fbfbf8; --muted: #6b6b66; --line: #d9d9d2; --accent: #7a1f1f; --code: #f0f0ea; }
@media (prefers-color-scheme: dark) { :root { --ink: #e8e8e3; --paper: #161615; --muted: #9a9a94; --line: #34342f; --accent: #e08a8a; --code: #222220; } }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); background: var(--paper); }
header { padding: 0.8rem 1.2rem; border-bottom: 1px solid var(--line); display: flex; gap: 1rem; align-items: baseline; }
header .home { font-weight: 700; text-decoration: none; color: var(--ink); }
header .tag { color: var(--muted); font-size: 0.9rem; }
.wrap { display: grid; grid-template-columns: 16rem 1fr; gap: 2rem; max-width: 76rem; margin: 0 auto; padding: 1.2rem; }
nav ul { list-style: none; padding: 0; margin: 0; font-size: 0.92rem; }
nav li.section { margin: 1rem 0 0.25rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; font-size: 0.75rem; }
nav li a { color: var(--ink); text-decoration: none; display: block; padding: 0.1rem 0; }
nav li.current a { color: var(--accent); font-weight: 600; }
main { min-width: 0; max-width: 46rem; }
h1 { font-size: 1.7rem; line-height: 1.2; margin: 0.4rem 0 1rem; }
h2 { font-size: 1.25rem; margin: 2rem 0 0.6rem; border-bottom: 1px solid var(--line); padding-bottom: 0.2rem; }
h3 { font-size: 1.05rem; margin: 1.4rem 0 0.4rem; }
a { color: var(--accent); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; background: var(--code); padding: 0.05em 0.3em; border-radius: 3px; }
pre { background: var(--code); padding: 0.8rem 1rem; border-radius: 6px; overflow-x: auto; font-size: 0.85rem; line-height: 1.45; }
pre code { background: none; padding: 0; font-size: inherit; }
blockquote { margin: 1rem 0; padding: 0.2rem 1rem; border-left: 3px solid var(--accent); color: var(--muted); }
.table { overflow-x: auto; }
table { border-collapse: collapse; font-size: 0.9rem; margin: 1rem 0; }
th, td { border: 1px solid var(--line); padding: 0.35rem 0.6rem; vertical-align: top; text-align: left; }
th { background: var(--code); }
hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; }
@media (max-width: 52rem) { .wrap { grid-template-columns: 1fr; } nav { border-bottom: 1px solid var(--line); padding-bottom: 1rem; } }