:root {
  --bg: #f8fafc; --surface: #ffffff; --ink: #0f172a; --muted: #475569; --line: #e2e8f0; --brand: #0f766e; --brand-ink: #ffffff; --band: #eef6f5; --pos: #0f766e; --neg: #b91c1c;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b1220; --surface: #111a2e; --ink: #e5edf8; --muted: #9fb0c8; --line: #1f2c47; --brand: #14b8a6; --brand-ink: #04211e; --band: #0e1a2c; --pos: #5eead4; --neg: #fca5a5; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 "Segoe UI", system-ui, -apple-system, Arial, sans-serif; }
a { color: var(--brand); }
.wrap { width: min(1080px, 100% - 32px); margin: 0 auto; }
.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 700; font-size: 20px; }
nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
nav a { text-decoration: none; color: var(--muted); font-weight: 500; }
nav a:hover { color: var(--ink); }
.btn { display: inline-block; padding: 11px 20px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 1px solid transparent; cursor: pointer; font-size: 15px; }
.btn.primary { background: var(--brand); color: var(--brand-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn.ghost:hover { background: var(--surface); }
.hero { padding: 56px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 36px; align-items: center; }
.eyebrow { color: var(--brand); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; font-size: 13px; margin: 0 0 8px; }
h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.12; margin: 0 0 14px; }
.lead { color: var(--muted); font-size: 18px; max-width: 34em; margin: 0 0 22px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.small { color: var(--muted); font-size: 14px; margin: 12px 0 0; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.hero-card .row { display: flex; justify-content: space-between; padding: 10px 4px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.hero-card .head { color: var(--muted); font-weight: 600; font-size: 14px; }
.hero-card .total { border-bottom: 0; font-weight: 700; }
.pos { color: var(--pos); } .neg { color: var(--neg); }
.section { padding: 44px 0; }
h2 { font-size: 28px; margin: 0 0 20px; }
h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; }
.band { background: var(--band); border-block: 1px solid var(--line); }
.dl { display: grid; gap: 14px; }
.dl .files { display: flex; gap: 12px; flex-wrap: wrap; }
.dl dl { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 0; color: var(--muted); font-size: 14px; }
.dl dt { font-weight: 600; color: var(--ink); }
.dl code { word-break: break-all; font-size: 12px; }
.dl ul { margin: 0; padding-left: 18px; color: var(--muted); }
.steps { padding-left: 20px; color: var(--muted); } .steps li { margin: 8px 0; } .steps b { color: var(--ink); }
.note { margin-top: 18px; }
.foot { border-top: 1px solid var(--line); padding: 22px 0; color: var(--muted); font-size: 14px; }
.foot .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
@media (max-width: 760px) { .hero-grid { grid-template-columns: 1fr; } nav { gap: 12px; font-size: 14px; } .hero { padding-top: 32px; } }