* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", sans-serif;
  }
  
  body {
    background: #f7f7f7;
    color: #333;
  }
  
  header {
    background: white;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  }
  
  .logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #a435f0;
  }
  
  nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  
  nav a {
    text-decoration: none;
    color: #333;
    font-size: 0.95rem;
  }
  
  nav input[type="text"] {
    padding: 0.5rem;
    border-radius: 4px;
    border: 1px solid #ccc;
    width: 250px;
  }
  
  .hero {
    padding: 2rem;
    text-align: center;
    background: #e0d3f8;
    color: #333;
  }
  
  .hero h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
  }
  
  .course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
    padding: 2rem;
  }
  
  .course-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    padding-bottom: 1rem;
    transition: transform 0.2s ease;
  }
  
  .course-card:hover {
    transform: translateY(-5px);
  }
  
  .course-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
  }
  
  .course-card h3 {
    margin: 0.8rem 1rem 0.2rem;
    font-size: 1.2rem;
  }
  
  .course-card p {
    margin: 0 1rem;
    font-size: 1rem;
    color: #666;
  }
  
  .course-card span {
    display: block;
    margin: 0.5rem 1rem;
    color: #a435f0;
    font-weight: bold;
  }