:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #1c2233;
  --muted: #5d6680;
  --line: #e3e6ef;
  --brand: #2f5bea;
  --brand-dark: #1f44c4;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11141c;
    --card: #1a1f2b;
    --text: #e8ebf3;
    --muted: #9aa3ba;
    --line: #2a3142;
    --brand: #5b80ff;
    --brand-dark: #4468e8;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Heebo", system-ui, sans-serif;
  line-height: 1.6;
}
a { color: var(--brand); }
.top {
  display: flex;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--card);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1rem; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--brand), #7a5bff);
}
main { max-width: 760px; margin: 0 auto; padding: 40px 16px 64px; }
.screen { text-align: center; padding: 32px 0; }
h1 { font-size: 2rem; font-weight: 800; margin: 0 0 12px; }
.lead { color: var(--muted); font-size: 1.1rem; margin: 0 0 28px; }
.btn {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  padding: 14px 32px;
  border-radius: 12px;
}
.btn:hover { background: var(--brand-dark); }
.meta { color: var(--muted); font-size: .9rem; margin-top: 10px; }
.steps {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px 28px;
  margin-top: 36px;
}
.steps h2 { margin: 0 0 12px; font-size: 1.2rem; }
.steps ol { margin: 0; padding-inline-start: 22px; }
.steps li { margin-bottom: 8px; }
.foot { text-align: center; color: var(--muted); font-size: .85rem; margin-top: 32px; }
.doc { max-width: 680px; }
.doc li { margin-bottom: 12px; }