:root {
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(80, 120, 255, .22), transparent 32rem),
    radial-gradient(circle at bottom right, rgba(255, 170, 60, .16), transparent 28rem),
    #0f1117;
  color: #f2f2f2;
  min-height: 100vh;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 64px 20px;
}

header {
  margin-bottom: 36px;
}

.badge {
  display: inline-block;
  margin-bottom: 16px;
  padding: 6px 12px;
  border: 1px solid #33405c;
  border-radius: 999px;
  background: rgba(23, 27, 37, .8);
  color: #9ec5ff;
  font-size: .9rem;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 1;
  letter-spacing: -0.06em;
}

.subtitle {
  max-width: 650px;
  margin-top: 18px;
  color: #b8beca;
  font-size: 1.1rem;
  line-height: 1.6;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.card {
  display: block;
  padding: 22px;
  border: 1px solid #2b3242;
  border-radius: 20px;
  background: rgba(23, 27, 37, .88);
  color: inherit;
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(0, 0, 0, .25);
  transition: transform .15s ease, border-color .15s ease, background .15s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: #6ea8fe;
  background: rgba(29, 35, 48, .96);
}

.card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.18rem;
}

.card span {
  color: #b8beca;
  line-height: 1.45;
}

footer {
  margin-top: 42px;
  color: #7f8797;
  font-size: .92rem;
}

footer a {
  color: #9ec5ff;
}