:root {
  --bg: #fbfaf7; --surface: #ffffff; --ink: #14161c; --muted: #5b6070;
  --line: #e4e2dc; --accent: #1f3a8a; --accent-ink: #ffffff;
  --mark-a: #2f55c8; --mark-b: #1f3a8a;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115; --surface: #171a21; --ink: #eceef2; --muted: #9aa0ad;
    --line: #262a33; --accent: #8fa8ff; --accent-ink: #0f1115;
    --mark-a: #b9c6ff; --mark-b: #8fa8ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 17px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 22px; padding-bottom: 22px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 650; letter-spacing: -0.01em; }
.mark { width: 32px; height: 28px; flex: none; }
nav { display: flex; gap: 18px; font-size: 15px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--ink); }
.hero { padding-top: 64px; padding-bottom: 40px; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-size: 14px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(34px, 6vw, 52px); line-height: 1.08; letter-spacing: -0.025em; max-width: 16ch; }
.lede { margin: 22px 0 0; font-size: 19px; color: var(--muted); max-width: 58ch; }
.block { padding-top: 36px; padding-bottom: 36px; border-top: 1px solid var(--line); }
.hero + .block { border-top: 0; }
h2 { margin: 0 0 18px; font-size: 14px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
h3 { margin: 0 0 8px; font-size: 21px; letter-spacing: -0.01em; }
.product, .card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 24px; }
.product { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.product p, .card p { margin: 0 0 10px; }
.product-body { max-width: 56ch; }
.meta { color: var(--muted); font-size: 15px; }
.button { flex: none; display: inline-block; padding: 11px 16px; border-radius: 10px; background: var(--accent); color: var(--accent-ink); text-decoration: none; font-weight: 600; font-size: 15px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.section-lede { margin: 0 0 20px; max-width: 62ch; color: var(--muted); }
.contact p { margin: 0 0 8px; }
.foot { display: flex; justify-content: space-between; gap: 16px; padding-top: 28px; padding-bottom: 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.foot p { margin: 0; }
.prose { padding-top: 32px; padding-bottom: 48px; max-width: 700px; }
.prose h1 { font-size: 38px; margin-bottom: 6px; }
@media (max-width: 860px) {
  .grid.three { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  nav { display: none; }
  .hero { padding-top: 36px; }
  .product { flex-direction: column; align-items: flex-start; }
  .grid, .grid.three { grid-template-columns: 1fr; }
  .foot { flex-direction: column; gap: 6px; }
}