body {
  margin: 0;
  font-family: 'Inter', Arial, sans-serif;
  background: linear-gradient(180deg, #0f172a, #020617);
  color: #e5e7eb;
}

header {
  text-align: center;
  padding: 80px 20px;
}

header h1 {
  font-size: 42px;
  margin-bottom: 10px;
}

nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  background: rgba(255,255,255,0.05);
  padding: 15px;
}

nav a {
  color: #38bdf8;
  text-decoration: none;
  font-weight: 500;
}

main {
  max-width: 1000px;
  margin: auto;
}

.card {
  background: #020617;
  margin: 40px 20px;
  padding: 35px;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.card h2 {
  color: #38bdf8;
}

.highlight {
  border: 1px solid #38bdf8;
}

a {
  color: #38bdf8;
}

footer {
  text-align: center;
  padding: 30px;
  background: rgba(0,0,0,0.5);
}