:root { --bg: #fbfaf7; --fg: #1d2420; --muted: #5d6762; --line: #e3e0d8; --card: #ffffff; --accent: #1f6f5c; }
@media (prefers-color-scheme: dark) { :root { --bg: #121614; --fg: #e8ece9; --muted: #9aa59f; --line: #2a312d; --card: #181d1a; --accent: #6cc3a9; } }
* { box-sizing: border-box; }
body { overflow-wrap: break-word; margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
header, main, footer { max-width: 820px; margin: 0 auto; padding: 0 20px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 22px; padding-bottom: 22px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--fg); text-decoration: none; letter-spacing: -.01em; }
.brand span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 15px; }
nav a:first-child { margin-left: 0; }
nav a:hover, nav a[aria-current] { color: var(--fg); }
main { padding-top: 36px; padding-bottom: 56px; }
h1 { font-size: 34px; line-height: 1.2; letter-spacing: -.02em; margin: 0 0 12px; }
h2 { font-size: 21px; margin: 40px 0 10px; }
h3 { font-size: 17px; margin: 24px 0 6px; }
p, li { color: var(--fg); }
.lead { font-size: 19px; color: var(--muted); margin-bottom: 28px; }
.muted { color: var(--muted); font-size: 14px; }
a { color: var(--accent); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; margin: 18px 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; }
.card h3 { margin-top: 0; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.tbl { overflow-x: auto; }
code { overflow-wrap: anywhere; font-size: 14px; background: var(--card); border: 1px solid var(--line); border-radius: 4px; padding: 1px 5px; }
footer { border-top: 1px solid var(--line); padding-top: 18px; padding-bottom: 36px; font-size: 14px; color: var(--muted); }
footer a { color: var(--muted); }
@media print { header nav, footer { display: none; } body { background: #fff; color: #000; } .card { border-color: #ccc; } }