:root { --ink: #1a1f36; --muted: #5b6475; --line: #e3e6ee; --accent: #4b45c6; --code: #f6f8fa; }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; color: var(--ink); }
header { display: flex; justify-content: space-between; align-items: center; padding: .75rem 1.5rem; border-bottom: 1px solid var(--line); }
header a { color: var(--ink); text-decoration: none; }
header .brand { font-weight: 600; }
.layout { display: flex; max-width: 80rem; margin: 0 auto; }
nav.side { flex: 0 0 16rem; padding: 1rem 1.5rem; border-right: 1px solid var(--line); font-size: .9rem; }
nav.side h2 { font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 1.25rem 0 .25rem; }
nav.side h3 { font-size: .8rem; color: var(--muted); margin: .9rem 0 .2rem; font-weight: 600; }
nav.side ul { list-style: none; margin: 0; padding: 0; }
nav.side li { margin: .2rem 0; }
nav.side a { color: var(--ink); text-decoration: none; }
nav.side a[aria-current] { color: var(--accent); font-weight: 600; }
main { flex: 1; min-width: 0; padding: 1.5rem 2.5rem 4rem; max-width: 56rem; }
h1 { font-size: 2rem; line-height: 1.25; margin-top: .5rem; }
h2 { margin-top: 2.25rem; padding-top: .5rem; border-top: 1px solid var(--line); }
a { color: var(--accent); }
code { font: .875em/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--code); padding: .1em .3em; border-radius: 4px; }
pre { background: var(--code); border: 1px solid var(--line); border-radius: 6px; padding: .9rem 1rem; overflow-x: auto; }
pre code { padding: 0; background: none; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; margin: 1rem 0; }
th, td { text-align: left; vertical-align: top; padding: .45rem .6rem; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
tr:target, td:target { background: #fff7d6; }
aside.note { border-left: 4px solid var(--accent); background: #f4f3ff; padding: .5rem 1rem; margin: 1rem 0; }
.source { margin-top: 3rem; font-size: .85rem; color: var(--muted); }
@media (max-width: 50rem) { .layout { display: block; } nav.side { border-right: 0; border-bottom: 1px solid var(--line); } main { padding: 1rem; } }