* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  background: #0f172a;
  color: #e5e7eb;
  line-height: 1.6;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem;
}

.hero {
  background: radial-gradient(circle at top, #1d4ed8, #0f172a);
  padding: 5rem 1.5rem 4rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.subtitle {
  font-size: 1.1rem;
  color: #9ca3af;
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  background: #2563eb;
  color: white;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.4);
}

main {
  margin-top: 2rem;
}

section {
  margin-bottom: 2rem;
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  border-left: 4px solid #2563eb;
  padding-left: 0.5rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.card {
  background: #020617;
  border-radius: 0.75rem;
  padding: 1rem;
  border: 1px solid #1f2937;
}

.card h3 {
  margin-bottom: 0.5rem;
}

.link {
  display: inline-block;
  margin-top: 0.5rem;
  color: #60a5fa;
  text-decoration: none;
}

.link:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  padding: 1.5rem;
  border-top: 1px solid #1f2937;
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #6b7280;
}