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

header {
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #020617;
}

header h1 {
  margin: 0;
  font-size: 24px;
}

nav a {
  color: #cbd5f5;
  margin-left: 20px;
  text-decoration: none;
}

.hero {
  text-align: center;
  padding: 100px 20px;
}

.hero h2 {
  font-size: 48px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  color: #94a3b8;
  max-width: 600px;
  margin: 0 auto 30px;
}

.hero button {
  padding: 12px 24px;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  background: #2563eb;
  color: white;
  cursor: pointer;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  padding: 60px 40px;
}

.card {
  background: #020617;
  padding: 20px;
  border-radius: 12px;
}

footer {
  text-align: center;
  padding: 20px;
  background: #020617;
  color: #64748b;
}