body {
    background: #ECEFCA;
    background: linear-gradient(0deg, rgba(236, 239, 202, 1) 0%, rgba(148, 180, 193, 1) 50%, rgba(84, 119, 146, 1) 100%);
    background-attachment: fixed;
    text-align: center;
    margin: 0;
    padding: 0;
    font-family: Inter, sans-serif;
    color: #333;
  }
  
  h1 {
    margin-top: 30px;
    font-size: 2em;
    color: #fff;
  }
  
  .course {
    background-color: rgba(255, 255, 255, 0.3); /* Membuat background hampir solid */
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4); 
    margin: 30px auto;
    padding: 20px;
    border-radius: 15px;
    width: 80%;
    max-width: 800px;
    text-align: left;
  }
  
  .course h2 {
    color: #2c3e50;
  }
  
  .project-ideas {
    padding-left: 20px;
  }
  
  .back-button{
    padding-bottom: 1px;
  }
  .back-button a{
    font-size: 20px;
    color: #547792;
    padding: 10px 20px 10px 20px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: all 0.3s ease;
  }
  
  .back-button a:hover {
    background-color: #ECEFCA;
    color: #213448;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  }