:root {
  color-scheme: light dark;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f7faff;
  color: #14213d;
}
* { box-sizing: border-box; }
body { margin: 0; background: #f7faff; color: #14213d; line-height: 1.65; }
header { border-bottom: 1px solid #dce7f5; background: rgba(255,255,255,.92); }
nav, main, footer { width: min(880px, calc(100% - 32px)); margin: 0 auto; }
nav { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { color: #0a84ff; font-size: 22px; font-weight: 800; text-decoration: none; }
.nav-links { display: flex; flex-wrap: wrap; gap: 14px; }
.nav-links a { color: #38516d; text-decoration: none; font-size: 14px; }
main { padding: 48px 0 64px; }
h1 { font-size: clamp(32px, 6vw, 52px); line-height: 1.08; margin: 0 0 18px; letter-spacing: -.03em; }
h2 { margin-top: 34px; line-height: 1.25; }
p, li { color: #38516d; }
.lead { font-size: 19px; max-width: 720px; }
.card { background: white; border: 1px solid #dce7f5; border-radius: 18px; padding: 24px; margin-top: 24px; box-shadow: 0 12px 32px rgba(22,65,120,.06); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border: 0; border-radius: 12px; background: #0a84ff; color: white; font-weight: 700; text-decoration: none; cursor: pointer; }
.button.secondary { color: #0a84ff; background: #eaf4ff; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
label { display: block; margin: 16px 0 6px; font-weight: 650; }
input, textarea { width: 100%; padding: 13px 14px; border: 1px solid #bfd0e5; border-radius: 11px; background: white; color: #14213d; font: inherit; }
textarea { min-height: 120px; resize: vertical; }
.honeypot { position: absolute; left: -10000px; }
.muted, footer { color: #667b93; font-size: 14px; }
.success { display: none; color: #087f5b; background: #e6fcf5; border-radius: 12px; padding: 14px; margin-top: 16px; }
.error { display: none; color: #b42318; background: #fff1f0; border-radius: 12px; padding: 14px; margin-top: 16px; }
footer { padding: 28px 0 42px; border-top: 1px solid #dce7f5; }
@media (prefers-color-scheme: dark) {
  :root, body { background: #07111f; color: #f4f8ff; }
  header { background: rgba(7,17,31,.92); border-color: #1d324a; }
  .card { background: #0d1c2e; border-color: #1d324a; }
  p, li, .nav-links a { color: #b8c9dc; }
  input, textarea { background: #07111f; color: #f4f8ff; border-color: #35506e; }
}