/* Reset */
* {
    box-sizing: border-box;
  }
  
  /* Layout */
  html, body {
    height: 100%;
  }
  
  body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: linear-gradient(180deg, #f8faff, #eef3ff);
    color: #333;
    display: flex;
    flex-direction: column;
  }
  
  main {
    flex: 1;
  }
  
  /* Header */
  header {
    background: linear-gradient(90deg, #007BFF, #0056b3);
    color: white;
    text-align: center;
    padding: 40px 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  }
  
  header h1 {
    margin-bottom: 10px;
  }
  
  nav a {
    margin: 0 15px;
    font-weight: 600;
    color: white;
    text-decoration: none;
  }
  
  /* Sections */
  section {
    max-width: 1200px;
    margin: 80px auto;
    padding: 0 20px;
  }
  
  section h2 {
    text-align: center;
    margin-bottom: 40px;
  }
  
  /* Content layout */
  .content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
  }
  
  /* Cards */
  .card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    flex: 1 1 300px;
  }
  
  .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
  }
  
  .card img {
    width: 100%;
    border-radius: 12px;
  }
  
  /* CTA */
  .cta {
    text-align: center;
  }
  
  /* Footer */
  footer {
    background: linear-gradient(90deg, #007BFF, #0056b3);
    color: white;
    text-align: center;
    padding: 20px;
  }
  
  /* Responsive */
  @media (max-width: 768px) {
    .content {
      flex-direction: column;
    }
  }