:root {
  --bg: #fbfaf7; --fg: #1d1c1a; --muted: #6b6862; --card: #ffffff; --line: #e6e2da;
  --accent: #d9622b; --accent-fg: #ffffff; --code: #f2efe8;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #141312; --fg: #f1efea; --muted: #a29e96; --card: #1d1c1a; --line: #2e2c29;
    --accent: #f07a42; --accent-fg: #141312; --code: #262421; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.6 "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header.top { display: flex; justify-content: space-between; align-items: center; padding: 22px 0; }
header.top a.brand { font-weight: 700; font-size: 20px; color: var(--fg); text-decoration: none; }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 15px; }
nav a:hover { color: var(--fg); }
.hero { padding: 48px 0 32px; }
.hero h1 { font-size: clamp(34px, 7vw, 52px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p { font-size: 19px; color: var(--muted); margin: 0 0 28px; }
.btn { display: inline-flex; align-items: center; gap: 10px; background: var(--fg); color: var(--bg);
  padding: 12px 20px; border-radius: 12px; text-decoration: none; font-weight: 600; }
.btn small { font-weight: 400; opacity: .75; }
h2 { font-size: 26px; margin: 48px 0 16px; letter-spacing: -0.01em; }
h3 { font-size: 18px; margin: 28px 0 8px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.card h3 { margin: 0 0 6px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
ol.steps { padding-left: 0; list-style: none; counter-reset: s; }
ol.steps > li { counter-increment: s; position: relative; padding-left: 44px; margin-bottom: 22px; }
ol.steps > li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 30px; height: 30px;
  border-radius: 50%; background: var(--accent); color: var(--accent-fg); display: grid; place-items: center;
  font-weight: 700; font-size: 15px; }
code, pre { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 14px; }
code { background: var(--code); padding: 2px 6px; border-radius: 6px; }
pre { background: var(--code); padding: 14px 16px; border-radius: 10px; overflow-x: auto; }
pre code { background: none; padding: 0; }
.placeholder { border: 2px dashed var(--accent); border-radius: 12px; padding: 14px 16px; margin: 10px 0; }
.placeholder strong { color: var(--accent); }
a { color: var(--accent); }
footer { border-top: 1px solid var(--line); margin-top: 64px; padding: 24px 0 40px; color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); margin-right: 16px; }
.doc h1 { font-size: 36px; margin: 32px 0 4px; }
.doc .updated { color: var(--muted); margin-bottom: 24px; }