* {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: 'roboto', sans-serif;
      background-color: #f2f2f2;
      color: #333;
      line-height: 1.6;
      
      user-select: none;
      -webkit-user-select: none; 
      -moz-user-select: none;    
      -ms-user-select: none;
    }

    header {
      background-color: #2F7BFF;
      height: 25vh; /* Hanya seperempat tinggi viewport */
      width: 100%;
    }

    .container {
      max-width: 900px;
      margin: -80px auto 40px auto; /* ← ubah baris ini, tambahkan jarak bawah */
      background-color: #fff;
      padding: 2rem;
      border-radius: 10px;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
      position: relative;
      z-index: 2;
    }

    h1 {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 1rem;
      color: #2F7BFF;
      text-align: center;
    }

    h2 {
      font-size: 1.25rem;
      margin-top: 2rem;
      color: #2F7BFF;
      border-bottom: 1px solid #ddd;
      padding-bottom: 0.25rem;
    }

    p {
      margin-top: 1rem;
      font-size: 1rem;
      color: #444;
    }

    a {
      color: #2F7BFF;
      text-decoration: none;
    }

    a:hover {
      text-decoration: underline;
    }

    @media (max-width: 600px) {
      .container {
        padding: 1.5rem 1rem;
        margin-top: -60px;
      }

      h1 {
        font-size: 1.5rem;
      }

      h2 {
        font-size: 1.1rem;
      }
    }