:root {
  --bg: #ffffff;
  --alt: #f8fafc;
  --fg: #0f172a;
  --muted: #475569;
  --card: #ffffff;
  --line: #e2e8f0;
  --accent: #4f46e5;
  --on-accent: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --alt: #0f1630;
    --fg: #e5e7eb;
    --muted: #9ca3af;
    --card: #131a2e;
    --line: #26304a;
    --accent: #818cf8;
    --on-accent: #0b1020;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.wrap { width: 100%; max-width: 64rem; margin: 0 auto; padding: 0 1rem; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.top { position: sticky; top: 0; z-index: 10; background: var(--bg); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; min-height: 3.5rem; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: 1.1rem; color: var(--fg); text-decoration: none; }
.logo { width: 2rem; height: 2rem; }
.menu-btn { background: none; border: 1px solid var(--line); color: var(--fg); border-radius: .5rem; padding: .4rem .8rem; font: inherit; cursor: pointer; }
.menu { display: none; width: 100%; flex-direction: column; padding: .5rem 0 1rem; }
.menu.open { display: flex; }
.menu a { padding: .6rem 0; color: var(--fg); text-decoration: none; border-top: 1px solid var(--line); }
@media (min-width: 48rem) {
  .menu-btn { display: none; }
  .menu { display: flex; flex-direction: row; width: auto; gap: 1.25rem; padding: 0; }
  .menu a { border: 0; padding: .25rem 0; }
}

.hero { padding: 3rem 0 2.5rem; }
.eyebrow { margin: 0 0 .5rem; color: var(--accent); font-weight: 600; }
h1 { margin: 0 0 1rem; font-size: clamp(1.8rem, 7vw, 3rem); line-height: 1.15; max-width: 22ch; }
h2 { margin: 0 0 1rem; font-size: clamp(1.4rem, 5vw, 1.9rem); }
h3 { margin: 0 0 .4rem; font-size: 1.05rem; }
.lead { margin: 0 0 1.5rem; color: var(--muted); font-size: 1.1rem; max-width: 40rem; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.btn { display: inline-block; padding: .7rem 1.1rem; border-radius: .6rem; border: 1px solid var(--line); color: var(--fg); text-decoration: none; font-weight: 600; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }

.block { padding: 2.5rem 0; }
.alt { background: var(--alt); }
.grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 48rem) { .grid { grid-template-columns: repeat(3, 1fr); } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: .75rem; padding: 1.1rem 1.25rem; }
.card p { margin: 0; color: var(--muted); }
.chips { list-style: none; margin: 1rem 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.chips li { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: .3rem .8rem; font-size: .95rem; }
.foot { padding: 1.5rem 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; text-align: center; }