:root { --bg: #fafaf8; --text: #1d1d1b; --muted: #6b6b66; --line: #e2e2dd; --accent: #2b5fd9; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #161615; --text: #ecece8; --muted: #9a9a93; --line: #34342f; --accent: #6c93f0; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.65 -apple-system, system-ui, "Segoe UI", sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 56px 20px 72px; }
h1 { font-size: 34px; line-height: 1.2; margin: 6px 0 14px; }
h2 { font-size: 19px; margin: 32px 0 8px; }
p, li { margin: 0 0 12px; }
ul { padding-left: 22px; margin: 0 0 12px; }
a { color: var(--accent); }
code { font: 14px ui-monospace, Menlo, monospace; background: var(--line); padding: 2px 6px; border-radius: 5px; word-break: break-all; }
.brand { font-weight: 700; letter-spacing: .04em; text-transform: uppercase; font-size: 13px; color: var(--muted); margin: 0; }
.brand a { color: inherit; text-decoration: none; }
.lead { font-size: 19px; }
.muted { color: var(--muted); }
footer { margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; gap: 20px; flex-wrap: wrap; color: var(--muted); font-size: 14px; }