:root { --bg: #f6f7f2; --text: #1f2a22; --muted: #5d6b61; --accent: #3c624c; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #141a16; --text: #e8ede9; --muted: #a3b0a7; --accent: #8fbf9f; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 34rem; margin: 0 auto; padding: 56px 16px; }
.icon { border-radius: 22px; display: block; margin-bottom: 20px; }
h1 { font-size: 1.8rem; line-height: 1.2; margin: 0 0 12px; }
ol { padding-left: 1.3rem; }
li { margin: 6px 0; }
a { color: var(--accent); }
.muted { color: var(--muted); font-size: 0.95rem; }
[hidden] { display: none; }
h2 { font-size: 1.15rem; margin: 28px 0 6px; }