body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(37, 215, 255, 0.14), transparent 30%),
    linear-gradient(180deg, #020617 0%, #0f172a 48%, #1e1b4b 100%);
  color: #f8fbff;
}

.shell {
  max-width: 880px;
  margin: 0 auto;
  padding: 40px 20px 72px;
}

.eyebrow {
  color: #ffd166;
  letter-spacing: 0.3em;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

h1 {
  font-size: 48px;
  margin: 10px 0 16px;
}

h2 {
  margin-top: 36px;
  font-size: 24px;
}

h3 {
  margin-top: 26px;
  font-size: 18px;
}

p,
li {
  color: rgba(248, 251, 255, 0.88);
  line-height: 1.75;
  font-size: 16px;
}

a {
  color: #25d7ff;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}

.brand {
  font-size: 14px;
  font-weight: 800;
  color: #f8fbff;
  text-decoration: none;
  letter-spacing: 0.08em;
}

.topnav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.topnav a {
  color: rgba(248, 251, 255, 0.84);
  text-decoration: none;
  font-size: 14px;
}

.card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 28px;
  padding: 28px;
  margin-top: 24px;
}

.nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.nav a,
.button {
  display: inline-block;
  text-decoration: none;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: #f8fbff;
  font-weight: 700;
}

.button.primary {
  background: #ffd166;
  color: #020617;
  border-color: transparent;
}

.meta {
  opacity: 0.72;
  font-size: 14px;
}

ul {
  padding-left: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.mini-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  padding: 22px;
}

.pill {
  display: inline-block;
  margin-top: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 209, 102, 0.14);
  color: #ffd166;
  font-size: 13px;
  font-weight: 700;
}

.footer {
  margin-top: 28px;
  opacity: 0.75;
  font-size: 14px;
}

@media (max-width: 640px) {
  .shell {
    padding: 28px 16px 48px;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 22px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .card,
  .mini-card {
    border-radius: 20px;
    padding: 20px;
  }
}