:root {
  --bg: #ffffff;
  --text: #202124;
  --muted: #5f6368;
  --accent: #1a73e8;
  --line: #e3e5e8;
  --soft: #f5f7fa;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17181a;
    --text: #e8eaed;
    --muted: #a0a4a9;
    --accent: #8ab4f8;
    --line: #2e3034;
    --soft: #1f2124;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header { border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 12px; }
.brand { font-weight: 700; color: var(--text); text-decoration: none; }
nav a { color: var(--muted); text-decoration: none; margin-left: 16px; font-size: 14px; }
nav a:hover { color: var(--text); }
main { padding: 40px 0 56px; }
h1 { font-size: 34px; line-height: 1.2; margin: 0 0 12px; }
h2 { font-size: 21px; margin: 36px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 6px; }
p, li { color: var(--text); }
.lead { font-size: 19px; color: var(--muted); margin: 0 0 24px; }
a { color: var(--accent); }
.steps { padding-left: 20px; }
.steps li { margin-bottom: 6px; }
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 12px; }
.plan { border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; background: var(--soft); }
.plan h3 { margin-top: 0; }
.plan ul { padding-left: 18px; margin: 0; }
.note { font-size: 14px; color: var(--muted); }
footer { border-top: 1px solid var(--line); padding: 20px 0 32px; font-size: 14px; color: var(--muted); }
footer a { color: var(--muted); margin-right: 16px; }