:root {
  color-scheme: dark;
  --bg: #061222;
  --surface: #132538;
  --line: #294156;
  --text: #f6f8fb;
  --muted: #a5b3c3;
  --cyan: #43d5ff;
  --mint: #18dbc4;
  font-family: ui-rounded, -apple-system, BlinkMacSystemFont, "SF Pro Rounded", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 88% 8%, rgba(0, 174, 216, .22), transparent 32rem),
    linear-gradient(145deg, #040b19, var(--bg) 55%, #08273a);
  line-height: 1.6;
}

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

.shell {
  width: min(920px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3rem, 10vw, 7rem) 0 3rem;
}

.hero { max-width: 700px; }
.eyebrow { margin: 0 0 .25rem; color: var(--mint); font-weight: 750; letter-spacing: .06em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(2.5rem, 8vw, 5rem); line-height: 1.04; letter-spacing: -.04em; }
h2 { margin: 0 0 .35rem; font-size: 1.25rem; }
.lede { max-width: 680px; color: var(--muted); font-size: clamp(1.1rem, 3vw, 1.35rem); }
.updated, .small { color: var(--muted); font-size: .92rem; }

.mark { display: flex; align-items: end; gap: 7px; width: 70px; height: 70px; margin-bottom: 2rem; padding: 15px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); }
.mark i { flex: 1; border-radius: 5px; background: linear-gradient(var(--cyan), #22bde8); }
.mark i:nth-child(1) { height: 45%; }
.mark i:nth-child(2) { height: 70%; }
.mark i:nth-child(3) { height: 92%; }

.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin: 3rem 0 6rem; }
.card { display: grid; gap: .5rem; min-height: 210px; padding: 1.5rem; color: var(--text); text-decoration: none; border: 1px solid var(--line); border-radius: 24px; background: color-mix(in srgb, var(--surface) 88%, transparent); transition: transform .2s ease, border-color .2s ease; }
.card:hover, .card:focus-visible { transform: translateY(-3px); border-color: var(--cyan); }
.card strong { font-size: 1.35rem; }
.card span:last-child { color: var(--muted); }
.icon { color: var(--cyan); font-size: 2rem; }

.document { max-width: 760px; padding-top: 3rem; }
.document h1 { font-size: clamp(2.6rem, 7vw, 4.5rem); }
.back { display: inline-block; margin-bottom: 3rem; text-decoration: none; }
.document section { margin: 1rem 0; padding: 1.4rem 1.5rem; border: 1px solid var(--line); border-radius: 20px; background: rgba(19, 37, 56, .82); }
.document section p { margin: .4rem 0 0; color: #d7e0e9; }
.notice { margin-top: 2rem; padding: 1rem 1.25rem; color: var(--muted); border-left: 3px solid var(--cyan); }
.contact { margin-top: 2.5rem !important; border-color: #227d8d !important; }
.button { display: inline-block; padding: .7rem 1rem; color: #00151c; font-weight: 750; text-decoration: none; border-radius: 999px; background: var(--cyan); }
footer { color: var(--muted); font-size: .9rem; }

@media (max-width: 620px) {
  .cards { grid-template-columns: 1fr; margin-bottom: 4rem; }
  .card { min-height: 170px; }
  .document section { padding: 1.1rem; }
}

@media (prefers-reduced-motion: reduce) {
  .card { transition: none; }
}