:root {
  color-scheme: light dark;
  --page: #edf7fa;
  --surface: #f8fcfd;
  --ink: #092238;
  --muted: #4c6878;
  --line: rgba(14, 55, 80, 0.16);
  --accent: #007f9c;
  --ocean: #07334e;
  --max: 860px;
}

* { box-sizing: border-box; }

html {
  background: var(--page);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

body { margin: 0; }

a { color: var(--accent); }

.shell {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

header {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--page) 88%, transparent);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 850;
  letter-spacing: 0.02em;
}

.brand img { width: 32px; height: 32px; }

.nav-links,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.nav-links a,
.footer-links a {
  color: var(--ink);
  text-decoration: none;
}

main { padding-block: clamp(64px, 10vw, 120px); }

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  max-width: 13ch;
  margin: 0 0 24px;
  font-size: clamp(2.8rem, 8vw, 5.8rem);
  line-height: 0.96;
  letter-spacing: -0.055em;
}

h2 {
  margin: 44px 0 12px;
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.15;
}

p,
li { color: var(--muted); }

.lead {
  max-width: 66ch;
  font-size: 1.18rem;
}

.notice {
  margin-top: 36px;
  padding: 20px 22px;
  border-left: 4px solid var(--accent);
  background: var(--surface);
}

.notice strong { color: var(--ink); }

.actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  color: #eefbff;
  background: var(--ocean);
  font-weight: 800;
  text-decoration: none;
}

footer {
  padding-block: 32px 46px;
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.footer-inner p { max-width: 52ch; margin: 0; }

@media (max-width: 680px) {
  .nav,
  .footer-inner { align-items: flex-start; flex-direction: column; padding-block: 18px; }
  .nav-links { gap: 8px 14px; }
  h1 { font-size: clamp(2.7rem, 14vw, 4.5rem); }
}