:root {
  --ink: #102536;
  --muted: #617585;
  --paper: #f4f8fc;
  --card: #ffffff;
  --line: #dbe6ef;
  --blue: #14a4f7;
  --blue-dark: #0c6efd;
  --blue-soft: #e7f5ff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.shell {
  width: min(980px, calc(100% - 40px));
  margin: 0 auto;
}

header {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 750;
  text-decoration: none;
}

.brand-mark {
  width: 32px;
  height: 32px;
  display: block;
  border-radius: 9px;
  object-fit: cover;
  box-shadow: 0 3px 10px rgba(12, 110, 253, .18);
}

nav { display: flex; gap: 24px; }
nav a, footer a { color: var(--muted); font-size: 14px; font-weight: 650; text-decoration: none; }
nav a:hover, footer a:hover { color: var(--blue); }

main { padding: 88px 0 108px; }

.eyebrow {
  margin-bottom: 20px;
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: .12em;
  text-transform: uppercase;
}

h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(46px, 8vw, 76px);
  line-height: 1;
  letter-spacing: -.055em;
}

.lede {
  max-width: 720px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.55;
}

.updated { margin-top: 22px; color: var(--muted); font-size: 14px; }

.actions, .cards { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }

.button {
  display: inline-flex;
  align-items: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 14px;
  color: white;
  background: var(--blue);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}
.button:hover { background: var(--blue-dark); }

.cards { margin-top: 72px; }
.card {
  min-width: 220px;
  flex: 1;
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  text-decoration: none;
}
.card h2 { margin: 0 0 10px; font-size: 21px; }
.card p { margin: 0; color: var(--muted); line-height: 1.65; }

.document {
  max-width: 790px;
  margin-top: 70px;
  padding: 18px 40px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
}
.document section { padding: 28px 0 30px; border-bottom: 1px solid var(--line); }
.document section:last-child { border-bottom: 0; }
.document h2, .support-box h2 { margin: 0 0 12px; font-size: 21px; }
.document p, .support-box p { margin: 0 0 14px; color: var(--muted); font-size: 16px; line-height: 1.75; }
.document p:last-child, .support-box p:last-child { margin-bottom: 0; }
.document a, .support-box a { color: var(--blue-dark); font-weight: 700; }

.support-box {
  max-width: 790px;
  margin-top: 58px;
  padding: 32px;
  background: var(--blue-soft);
  border: 1px solid #b8ddf7;
  border-radius: 24px;
}
.support-email {
  display: inline-block;
  margin: 8px 0 22px;
  color: var(--blue-dark);
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 800;
  letter-spacing: -.03em;
}

footer {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
.footer-links { display: flex; gap: 20px; }

@media (max-width: 700px) {
  .shell { width: min(100% - 28px, 980px); }
  header { min-height: 72px; }
  nav { gap: 14px; }
  main { padding: 64px 0 78px; }
  h1 { font-size: 48px; }
  .cards { flex-direction: column; margin-top: 52px; }
  .document { margin-top: 48px; padding: 8px 24px; }
  .support-box { padding: 24px; }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}