:root {
  --canvas: #F6F4FA;
  --surface: #FFFFFF;
  --subtle: #ECE8F2;
  --ink: #251D39;
  --secondary: #6C627B;
  --primary: #6D4AE6;
  --on-primary: #FFFFFF;
  --primary-soft: #EFE8FF;
  --border: #DED8E8;
  --mark: #6D4AE6;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --canvas: #15121C;
    --surface: #211B2C;
    --subtle: #2B2438;
    --ink: #F6F2FF;
    --secondary: #BDB2CF;
    --primary: #B8A0FF;
    --on-primary: #201439;
    --primary-soft: #34264E;
    --border: #463A57;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --canvas: #15121C;
  --surface: #211B2C;
  --subtle: #2B2438;
  --ink: #F6F2FF;
  --secondary: #BDB2CF;
  --primary: #B8A0FF;
  --on-primary: #201439;
  --primary-soft: #34264E;
  --border: #463A57;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 400 17px/1.6 "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: var(--primary); }
img, svg { display: block; }

.wrap { max-width: 960px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 720px; }

header.top { padding: 16px 0; }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 18px; }
.brand svg { width: 36px; height: 36px; }
nav.links { display: flex; gap: 16px; flex-wrap: wrap; font-size: 15px; }
nav.links a { color: var(--secondary); text-decoration: none; }
nav.links a:hover, nav.links a[aria-current="page"] { color: var(--ink); }

.hero { padding: 40px 0 24px; }
.hero h1 { font-size: clamp(32px, 7vw, 52px); line-height: 1.15; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p.lead { font-size: clamp(17px, 2.6vw, 20px); color: var(--secondary); max-width: 40em; margin: 0 0 24px; }
.pill { display: inline-block; padding: 6px 12px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-weight: 600; font-size: 14px; margin-bottom: 16px; }
.button { display: inline-flex; align-items: center; min-height: 48px; padding: 0 22px; border-radius: 14px; background: var(--primary); color: var(--on-primary); font-weight: 600; text-decoration: none; }
.button.secondary { background: var(--surface); color: var(--ink); border: 1px solid var(--border); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); padding: 24px 0 48px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 20px; }
.card h3 { margin: 12px 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--secondary); font-size: 16px; }
.icon { width: 40px; height: 40px; border-radius: 12px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; }
.icon svg { width: 22px; height: 22px; }

section.band { padding: 8px 0 48px; }
section.band h2 { font-size: 26px; margin: 0 0 12px; }
.steps { margin: 0; padding-left: 22px; color: var(--secondary); }
.steps li { margin: 6px 0; }
.steps strong { color: var(--ink); }

article.doc { padding: 24px 0 56px; }
article.doc h1 { font-size: clamp(28px, 6vw, 40px); line-height: 1.2; margin: 8px 0 8px; }
article.doc .meta { color: var(--secondary); margin: 0 0 24px; }
article.doc h2 { font-size: 21px; margin: 32px 0 8px; }
article.doc p, article.doc li { color: var(--ink); }
article.doc ul { padding-left: 22px; }
article.doc li { margin: 6px 0; }
.note { background: var(--primary-soft); border-radius: 16px; padding: 14px 16px; }

footer.bottom { border-top: 1px solid var(--border); padding: 24px 0 40px; color: var(--secondary); font-size: 15px; }
footer.bottom .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
footer.bottom a { color: var(--secondary); }

article.doc h3 { font-size: 18px; margin: 20px 0 4px; }
@media (max-width: 560px) {
  header.top .wrap { flex-direction: column; align-items: flex-start; }
  nav.links { gap: 14px; }
}