:root {
  --bg: #fafaf8;
  --card: #ffffff;
  --text: #1b1b1b;
  --muted: #5f6368;
  --border: #e3e3df;
  --accent: #0b7a5c;
  --accent-text: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121413;
    --card: #1b1e1d;
    --text: #ececec;
    --muted: #a3a8a6;
    --border: #2c302e;
    --accent: #37c49b;
    --accent-text: #0b1512;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header.site { display: flex; align-items: center; gap: 10px; margin-bottom: 32px; }
header.site img { width: 36px; height: 36px; }
header.site a { color: inherit; text-decoration: none; font-weight: 700; font-size: 20px; }
h1 { font-size: 34px; line-height: 1.2; margin: 0 0 12px; }
h2 { font-size: 22px; margin: 36px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 4px; }
p, li { color: var(--text); }
.lead { font-size: 19px; color: var(--muted); margin: 0 0 24px; }
.muted { color: var(--muted); }
a { color: var(--accent); }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin: 16px 0;
}
.steps { counter-reset: step; list-style: none; padding: 0; }
.steps li { counter-increment: step; position: relative; padding-left: 40px; margin: 12px 0; }
.steps li::before {
  content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent); color: var(--accent-text);
  display: grid; place-items: center; font-weight: 700; font-size: 14px;
}
.button {
  display: inline-block;
  background: var(--accent); color: var(--accent-text);
  padding: 10px 18px; border-radius: 8px;
  text-decoration: none; font-weight: 600;
}
footer.site {
  margin-top: 48px; padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted); font-size: 14px;
}
footer.site a { color: var(--muted); margin-right: 16px; }