:root {
  color-scheme: light dark;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  background: #f5f7fb;
  color: #111827;
}

* { box-sizing: border-box; }
body { margin: 0; }
a { color: #1267e5; }
.shell { width: min(760px, calc(100% - 32px)); margin: 0 auto; padding: 24px 0 56px; }
nav { display: flex; align-items: center; gap: 18px; margin-bottom: 36px; }
.brand { margin-right: auto; color: inherit; font-weight: 750; text-decoration: none; }
select { border: 1px solid #d6dbe5; border-radius: 10px; background: white; color: inherit; padding: 8px 10px; }
.hero, .card { border: 1px solid #e2e7f0; border-radius: 24px; background: white; box-shadow: 0 14px 40px rgba(24, 52, 91, .08); }
.hero { padding: clamp(28px, 7vw, 56px); background: linear-gradient(145deg, #eaf4ff, #fff 58%); }
.card { margin-top: 18px; padding: 24px; }
h1 { margin: 0 0 12px; font-size: clamp(34px, 8vw, 56px); letter-spacing: -.035em; }
h2 { margin: 0 0 10px; font-size: 21px; }
p { margin: 0; line-height: 1.65; color: #5f6878; }
.card p + p { margin-top: 10px; }
.eyebrow { margin-bottom: 12px; color: #347ff0; font-weight: 700; }
.contact { display: inline-flex; margin-top: 22px; border-radius: 14px; background: #347ff0; color: white; padding: 12px 18px; font-weight: 700; text-decoration: none; }
footer { padding-top: 26px; color: #7b8492; font-size: 13px; }

@media (prefers-color-scheme: dark) {
  :root { background: #0c1017; color: #f5f7fb; }
  select, .hero, .card { background: #151b25; border-color: #273142; }
  .hero { background: linear-gradient(145deg, #152a47, #151b25 58%); }
  p { color: #aeb7c6; }
}