:root {
  --bg: #f6f5f1; --panel: #ffffff; --border: #e1dfd8;
  --text: #25282d; --muted: #6b6f76; --accent: #4f6b8a; --body: #3b3f46;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #17181b; --panel: #1f2125; --border: #32353b; --text: #e8e6e1; --muted: #9a9ea6; --accent: #8aa4c2; --body: #c9c7c2; }
}
* { box-sizing: border-box; margin: 0; }
body { background: var(--bg); color: var(--text); font-family: "Hanken Grotesk", system-ui, sans-serif; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); }
.wrap { width: min(760px, 100% - 40px); margin-inline: auto; }
nav { border-bottom: 1px solid var(--border); background: var(--bg); }
nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 66px; width: min(1100px, 100% - 40px); }
.logo { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.logo svg { width: 30px; height: 30px; color: var(--accent); }
.logo b { font-size: 1.35rem; font-weight: 700; letter-spacing: -.03em; }
nav .back { color: var(--muted); text-decoration: none; font-size: .92rem; }
nav .back:hover { color: var(--text); }
main { padding: 64px 0 40px; }
h1 { font-size: clamp(2rem, 5vw, 3rem); letter-spacing: -.03em; line-height: 1.1; margin-bottom: 8px; }
.updated { color: var(--muted); font-size: .92rem; margin-bottom: 40px; }
h2 { font-size: 1.3rem; letter-spacing: -.01em; margin: 40px 0 10px; }
h3 { font-size: 1.1rem; margin: 28px 0 8px; scroll-margin-top: 20px; }
p, li { color: var(--body); }
p { margin-bottom: 14px; }
ul { padding-left: 22px; margin-bottom: 14px; }
li { margin-bottom: 6px; }
.callout { border: 1px solid var(--border); background: var(--panel); border-radius: 12px; padding: 18px 20px; margin: 18px 0; }
.callout p:last-child { margin-bottom: 0; }
footer { padding: 40px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: .88rem; margin-top: 40px; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
footer a { color: var(--muted); }