:root { color-scheme: light dark; --bg: #f5f7f4; --card: #fff; --text: #17201b; --muted: #5d6a62; --primary: #1e9e5a; }
@media (prefers-color-scheme: dark) { :root { --bg: #0f1411; --card: #1a211c; --text: #eef3ef; --muted: #a3b0a7; --primary: #3cc47e; } }
body { margin: 0; background: var(--bg); color: var(--text); font: 18px/1.5 -apple-system, system-ui, sans-serif; }
main { max-width: 520px; margin: 0 auto; padding: 40px 20px; text-align: center; }
h1 { font-size: 1.6em; margin: .4em 0; }
ol { text-align: start; background: var(--card); border-radius: 18px; padding: 16px 16px 16px 40px; }
.code { font-size: 2.2em; letter-spacing: .12em; font-weight: 700; font-family: ui-monospace, Menlo, monospace; }
.btn { display: inline-block; background: var(--primary); color: #fff; padding: 14px 24px; border-radius: 14px; text-decoration: none; font-weight: 600; }
a { color: var(--primary); }
main.prose { text-align: start; max-width: 720px; }
.prose h2 { font-size: 1.15em; margin-top: 1.6em; }
.prose ul { padding-inline-start: 1.2em; }
.prose li { margin: 0.4em 0; }
.muted { color: var(--muted); font-size: 0.9em; }
.notice { background: var(--card); border-radius: 14px; padding: 12px 14px; }
hr { border: 0; border-top: 1px solid var(--muted); opacity: 0.3; margin: 40px 0; }