:root {
  color-scheme: light;
  --navy: #082b4c;
  --blue: #0b4f7c;
  --yellow: #f6c843;
  --paper: #fffdf7;
  --ink: #102638;
  --muted: #526678;
  --line: #dce5eb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: linear-gradient(180deg, var(--navy) 0 18rem, var(--paper) 18rem);
  color: var(--ink);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

header, main, footer { width: min(880px, calc(100% - 2rem)); margin-inline: auto; }
header { color: white; padding: 4rem 0 2.5rem; }
.mark { color: var(--yellow); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
h1 { margin: .45rem 0 .5rem; font-size: clamp(2.25rem, 7vw, 4.4rem); line-height: 1.02; letter-spacing: -.045em; }
header p { max-width: 680px; color: #dbe9f2; font-size: 1.08rem; }
main { background: white; border: 1px solid var(--line); border-radius: 24px; padding: clamp(1.4rem, 4vw, 3.4rem); box-shadow: 0 22px 70px rgba(4, 31, 53, .16); }
h2 { margin-top: 2.2rem; color: var(--navy); line-height: 1.2; }
h2:first-child { margin-top: 0; }
a { color: var(--blue); text-underline-offset: .18em; }
.actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1rem; margin: 2rem 0; }
.card { display: block; padding: 1.1rem 1.2rem; border: 1px solid var(--line); border-radius: 16px; text-decoration: none; }
.card strong { display: block; color: var(--navy); }
.card span { color: var(--muted); font-size: .94rem; }
.notice { border-left: 5px solid var(--yellow); background: #fff9df; padding: 1rem 1.2rem; border-radius: 0 12px 12px 0; }
footer { padding: 2.2rem 0 3.5rem; color: var(--muted); font-size: .92rem; }
footer nav { display: flex; gap: 1.2rem; flex-wrap: wrap; }