:root {
  --bg: #0a0a0a;
  --panel: #111;
  --line: #1f1f1f;
  --text: #e5e5e5;
  --muted: #8a8a8a;
  --accent: #4ade80;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { background: var(--bg); color: var(--text); font: 16px/1.6 var(--font); -webkit-text-size-adjust: 100%; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
code { font: 0.9em var(--mono); color: var(--text); background: var(--panel); border: 1px solid var(--line); border-radius: 4px; padding: 0.05em 0.35em; }
h1, h2 { margin: 0; line-height: 1.15; letter-spacing: -0.01em; }

.top, main, footer { width: 100%; max-width: 920px; margin: 0 auto; padding: 0 20px; }

.top { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; }
.brand:hover { text-decoration: none; }
.mark { border-radius: 7px; }
nav a { color: var(--muted); margin-left: 22px; }
nav a:hover { color: var(--text); }

main { flex: 1; }

.hero { padding: 72px 0 48px; }
.hero h1 { font-size: clamp(2.2rem, 6vw, 3.6rem); font-weight: 700; }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 36em; margin: 18px 0 30px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 0; }
.button { display: inline-block; padding: 11px 20px; border-radius: 8px; background: var(--accent); color: var(--bg); font-weight: 600; }
.button:hover { text-decoration: none; filter: brightness(1.08); }
.button--quiet { background: transparent; color: var(--text); border: 1px solid var(--line); }
.button--quiet:hover { border-color: var(--muted); }
.fine { color: var(--muted); font-size: 0.9rem; margin: 14px 0 0; }

.points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; padding: 24px 0; border-top: 1px solid var(--line); }
.points h2 { font-size: 1.05rem; color: var(--accent); margin-bottom: 6px; }
.points p { margin: 0; color: var(--muted); }

.features { padding: 24px 0 8px; }
.features ul { margin: 0; padding-left: 1.2em; color: var(--muted); }
.features li { margin: 6px 0; }
.features li::marker { color: var(--accent); }

.download { padding: 48px 0 56px; }
.download h2 { font-size: 1.6rem; margin-bottom: 10px; }
.download > p { color: var(--muted); max-width: 44em; }
table { width: 100%; border-collapse: collapse; margin-top: 18px; }
th, td { text-align: left; padding: 14px 12px 14px 0; border-top: 1px solid var(--line); vertical-align: top; }
th { width: 7em; font-weight: 600; white-space: nowrap; }
tr.current th::before { content: "▸ "; color: var(--accent); }
.arch { color: var(--muted); font-size: 0.85rem; margin-left: 6px; }
.note { color: var(--muted); font-size: 0.9rem; }

footer { padding: 24px 20px 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }
footer p { margin: 0 0 6px; }
footer a { color: var(--text); }

@media (max-width: 640px) {
  .points { grid-template-columns: 1fr; }
  th, td { display: block; padding: 6px 0; border-top: 0; }
  tr { display: block; padding: 12px 0; border-top: 1px solid var(--line); }
  th { width: auto; }
}