:root {
  --bg: #f6f8f6;
  --card: #ffffff;
  --text: #17261b;
  --muted: #56655a;
  --brand: #1f7a3d;
  --brand-dark: #145a2c;
  --border: #dfe6e0;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1511; --card: #18201a; --text: #e8f0ea; --muted: #a1afa5; --brand: #5fc47f; --brand-dark: #8fdca7; --border: #2a342d; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 17px/1.6 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--brand); }
img { max-width: 100%; height: auto; }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }
header.site { background: var(--card); border-bottom: 1px solid var(--border); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--text); text-decoration: none; font-size: 18px; }
.brand img { width: 36px; height: 36px; border-radius: 9px; }
nav a { margin-left: 16px; text-decoration: none; font-weight: 600; }
.hero { padding: 56px 0 40px; }
.hero h1 { font-size: clamp(30px, 6vw, 46px); line-height: 1.15; margin: 0 0 16px; }
.hero p { font-size: 19px; color: var(--muted); max-width: 640px; }
.badge { display: inline-block; background: var(--brand); color: #fff; border-radius: 999px; padding: 4px 12px; font-size: 14px; font-weight: 700; margin-bottom: 14px; }
.cta { display: inline-block; margin-top: 12px; background: var(--brand); color: #fff; padding: 12px 20px; border-radius: 10px; font-weight: 700; text-decoration: none; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; }
.card h3 { margin: 0 0 6px; }
section { padding: 28px 0; }
section h2 { font-size: 28px; margin: 0 0 16px; }
.muted { color: var(--muted); }
ol.steps { padding-left: 20px; }
ol.steps li { margin-bottom: 8px; }
footer { border-top: 1px solid var(--border); padding: 24px 0 40px; color: var(--muted); font-size: 15px; }
footer a { margin-right: 16px; }
.doc { max-width: 760px; }
.doc h1 { font-size: 34px; margin: 32px 0 8px; }
.doc h2 { font-size: 22px; margin: 28px 0 8px; }
table { border-collapse: collapse; width: 100%; display: block; overflow-x: auto; }
th, td { text-align: left; border-bottom: 1px solid var(--border); padding: 8px; vertical-align: top; }