:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  background: #07111a;
  color: #e7f6ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top right, rgba(45, 139, 184, 0.2), transparent 36rem),
    linear-gradient(180deg, #07111a, #0b1823);
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 72px;
}

.brand {
  color: #8fd3ff;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 10px 0 12px;
  font-size: clamp(2rem, 8vw, 3.4rem);
  line-height: 1.05;
}

h2 {
  margin-top: 34px;
  font-size: 1.25rem;
}

p,
li {
  color: #c2d5e1;
  line-height: 1.7;
}

a {
  color: #8fd3ff;
}

.card {
  margin-top: 28px;
  padding: clamp(20px, 5vw, 34px);
  border: 1px solid #243848;
  border-radius: 20px;
  background: rgba(15, 29, 40, 0.86);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.28);
}

.button {
  display: inline-block;
  margin: 12px 0;
  padding: 13px 18px;
  border-radius: 12px;
  background: #8fd3ff;
  color: #07111a;
  font-weight: 800;
  text-decoration: none;
}

.note {
  padding: 14px 16px;
  border-left: 3px solid #8fd3ff;
  background: rgba(143, 211, 255, 0.08);
}

footer {
  margin-top: 40px;
  color: #8299a8;
  font-size: 0.9rem;
}