:root {
  --bg: #fafaf9;
  --fg: #1c1917;
  --muted: #78716c;
  --line: #e7e5e4;
  --card: #ffffff;
  --accent: #4f46e5;
  --accent-fg: #ffffff;
  --hl: #f5f5f4;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0a09;
    --fg: #f5f5f4;
    --muted: #a8a29e;
    --line: #292524;
    --card: #1c1917;
    --accent: #818cf8;
    --accent-fg: #0c0a09;
    --hl: #161412;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration-color: var(--line); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--accent); color: var(--accent); }

.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }

.top {
  display: flex; justify-content: space-between; align-items: center;
  padding: 28px 0;
}
.mark { font-weight: 700; text-decoration: none; letter-spacing: -0.01em; }
.top nav { display: flex; gap: 20px; font-size: 14px; }
.top nav a { text-decoration: none; color: var(--muted); }
.top nav a:hover { color: var(--fg); }

.hero { padding: 56px 0 40px; }
.eyebrow {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 13px; color: var(--muted); margin: 0 0 16px;
  text-transform: uppercase; letter-spacing: 0.06em;
}
h1 {
  font-size: clamp(32px, 6vw, 48px); line-height: 1.1;
  letter-spacing: -0.03em; margin: 0 0 20px; font-weight: 700;
}
h2 { font-size: 22px; letter-spacing: -0.02em; margin: 0 0 20px; }
h3 { font-size: 17px; margin: 0; font-weight: 600; }
.lede { font-size: 18px; color: var(--muted); margin: 0 0 28px; max-width: 60ch; }
.lede.small { font-size: 16px; }

.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 10px 18px; border-radius: 10px;
  border: 1px solid var(--line); text-decoration: none; font-weight: 500; font-size: 15px;
  background: var(--card);
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }

.block { padding: 40px 0; border-top: 1px solid var(--line); }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px;
}
.card p { margin: 8px 0 0; color: var(--muted); font-size: 15px; }

.list { list-style: none; padding: 0; margin: 0; }
.list li { padding: 18px 0; border-bottom: 1px dashed var(--line); }
.list li:last-child { border-bottom: 0; }
.list p { margin: 6px 0 0; color: var(--muted); font-size: 15px; }
.row-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.row-head a { text-decoration: none; }
.tag {
  font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 12px;
  color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px;
  white-space: nowrap;
}

.highlight {
  background: var(--hl); border: 1px solid var(--line); border-radius: 18px;
  padding: 32px 28px; margin: 8px 0 40px;
}
.checks { padding: 0; margin: 0 0 28px; list-style: none; }
.checks li { padding: 6px 0 6px 28px; position: relative; }
.checks li::before {
  content: "→"; position: absolute; left: 0; color: var(--accent); font-weight: 600;
}

.links { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.links a {
  display: inline-block; padding: 8px 14px; border: 1px solid var(--line);
  border-radius: 999px; text-decoration: none; font-size: 14px; background: var(--card);
}
.links a:hover { border-color: var(--accent); }

footer {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  padding: 32px 0 48px; border-top: 1px solid var(--line); font-size: 13px;
}
.muted { color: var(--muted); }

@media (max-width: 520px) {
  .top nav { gap: 14px; }
  .highlight { padding: 24px 18px; }
}