:root {
  color-scheme: dark;
  --bg: #111814;
  --panel: #18221b;
  --line: #34443a;
  --ink: #f1f5ed;
  --muted: #b7c5b9;
  --accent: #c8f28d;
  --mono: ui-monospace, SFMono-Regular, Consolas, monospace;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 system-ui, sans-serif; }
a { color: inherit; text-underline-offset: 4px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
.wrap { width: min(1140px, calc(100% - 48px)); margin-inline: auto; }
.top { border-bottom: 1px solid var(--line); }
.top nav, footer, .preview-bar, .field-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.top nav { min-height: 68px; }
.top a, .preview-bar a { text-decoration: none; }
.top a:hover, .preview-bar a:hover { color: var(--accent); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.mark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; background: var(--accent); color: var(--bg); }
.hero { display: grid; grid-template-columns: 1.55fr 1fr; align-items: center; gap: 56px; padding: 86px 0 76px; }
.label, .field-head, .preview-bar > span, .cards span { color: var(--accent); font: 600 .73rem/1.5 var(--mono); letter-spacing: .10em; text-transform: uppercase; }
.label span, .preview-bar i { display: inline-block; width: 7px; height: 7px; background: var(--accent); border-radius: 50%; margin-right: 8px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(2.8rem, 6vw, 5.15rem); line-height: 1; letter-spacing: -.065em; margin-bottom: 22px; }
h1 em { color: var(--accent); font-style: normal; }
h2 { font-size: clamp(2.15rem, 4.5vw, 3.5rem); line-height: 1.05; letter-spacing: -.055em; margin-bottom: 12px; }
.intro { color: var(--muted); max-width: 58ch; font-size: 1.12rem; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 27px; }
.button { display: inline-flex; align-items: center; gap: 12px; padding: 10px 15px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; font-weight: 700; }
.button:hover { border-color: var(--accent); }
.primary { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.field { padding: 24px; border: 1px solid var(--line); border-radius: 14px; background: repeating-linear-gradient(0deg, transparent 0 23px, #ffffff06 23px 24px), var(--panel); }
.field-head { padding-bottom: 17px; border-bottom: 1px solid var(--line); margin-bottom: 9px; }
.field p { margin: 0; padding: 11px 0; }
.field b { font: .78rem var(--mono); color: var(--accent); margin-right: 10px; }
.example { border-top: 1px solid var(--line); padding: 46px 0 60px; }
.preview { margin-top: 24px; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--panel); }
.preview-bar { min-height: 46px; padding: 0 16px; }
.preview iframe { display: block; width: 100%; height: clamp(320px, 50vw, 520px); border: 0; border-top: 1px solid var(--line); }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 12px; }
.cards a { padding: 17px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; text-decoration: none; }
.cards a:hover { border-color: var(--accent); }
.cards h3 { margin: 6px 0; font-size: 1rem; }
.cards p, .start p, footer { color: var(--muted); }
.cards p { font-size: .92rem; margin-bottom: 0; }
.start { display: grid; grid-template-columns: 1fr 1.25fr; gap: 28px; align-items: center; padding: 38px 0 56px; border-top: 1px solid var(--line); }
.start pre { min-width: 0; overflow: auto; padding: 18px; margin: 0; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); font: .82rem/1.8 var(--mono); }
footer { border-top: 1px solid var(--line); padding: 20px 0 32px; font-size: .88rem; }
@media (max-width: 760px) {
  .hero, .start { grid-template-columns: 1fr; gap: 24px; }
  .hero { padding: 48px 0; }
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 420px) {
  .wrap { width: calc(100% - 28px); }
  .brand { font-size: .85rem; }
}