* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #0f172a;
  color: #f8fafc;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  min-height: 80vh;
  padding: 24px;
  background:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.35), transparent 30%),
    radial-gradient(circle at bottom right, rgba(168, 85, 247, 0.25), transparent 35%),
    #0f172a;
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.nav a {
  color: #cbd5e1;
  font-weight: 600;
}

.hero {
  max-width: 1100px;
  margin: 120px auto 0;
}

.eyebrow {
  color: #93c5fd;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  max-width: 780px;
  margin: 12px 0;
  font-size: clamp(48px, 8vw, 92px);
  line-height: 0.95;
}

.hero-text {
  max-width: 640px;
  color: #cbd5e1;
  font-size: 20px;
  line-height: 1.6;
}

.button {
  display: inline-block;
  margin-top: 24px;
  padding: 14px 22px;
  border-radius: 999px;
  background: #f8fafc;
  color: #0f172a;
  font-weight: 800;
}

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px;
}

.section-heading {
  margin-bottom: 32px;
}

.section-heading h2 {
  margin: 8px 0 0;
  font-size: 40px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  padding: 24px;
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 24px;
  background: rgba(15, 23, 42, 0.75);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.card p {
  margin: 0;
  color: #cbd5e1;
  line-height: 1.5;
}

.card .tag {
  display: inline-block;
  margin-top: 18px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.16);
  color: #bfdbfe;
  font-size: 13px;
  font-weight: 700;
}

.footer {
  padding: 32px 24px;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  color: #94a3b8;
  text-align: center;
}

@media (max-width: 800px) {
  .hero {
    margin-top: 72px;
  }

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