* {
    box-sizing: border-box;
  }
  body {
    margin: 0;
    padding: 0;
    font-family: "Poppins", sans-serif;
    background: linear-gradient(120deg, #00b4db, #0083b0);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .container {
    display: flex;
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.25);
    width: 900px;
    max-width: 95%;
    overflow: hidden;
    animation: fadeIn 0.8s ease;
  }

  @keyframes fadeIn {
    from {opacity: 0; transform: scale(0.95);}
    to {opacity: 1; transform: scale(1);}
  }

  /* Bagian kiri */
  .keterangan {
    width: 45%;
    background: linear-gradient(160deg, #007fa6, #00b4db);
    color: white;
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
  }

  .keterangan img {
    width: 80px;
    height: auto;
    margin-bottom: 15px;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
  }

  .keterangan h1 {
    font-size: 22px;
    margin-bottom: 10px;
    line-height: 1.4;
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
  }

  .keterangan hr {
    width: 60px;
    border: 2px solid white;
    margin: 10px 0 15px;
    border-radius: 2px;
  }

  .keterangan p {
    font-size: 14px;
    line-height: 1.5;
    opacity: 0.9;
  }

  /* Bagian kanan */
  .login-form {
    width: 55%;
    padding: 35px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .login-form h2 {
    text-align: center;
    margin-bottom: 25px;
    color: #0083b0;
    font-size: 20px;
  }

  .form-group {
    margin-bottom: 15px;
  }

  .login-form label {
    display: block;
    margin-bottom: 6px;
    color: #333;
    font-weight: 500;
  }

  .login-form input,
  .login-form select {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid #ccc;
    font-size: 14px;
    transition: all 0.3s ease;
  }

  .login-form input:focus,
  .login-form select:focus {
    outline: none;
    border-color: #00a1d6;
    box-shadow: 0 0 6px rgba(0,163,200,0.3);
  }

  .login-form button {
    width: 100%;
    padding: 12px;
    border: none;
    background: #0083b0;
    color: white;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.3s;
    margin-top: 10px;
  }

  .login-form button:hover {
    background: #006f8a;
  }

  .footer {
    text-align: center;
    font-size: 12px;
    color: #777;
    margin-top: 10px;
  }

  /* TAMPILAN HP */
  @media (max-width: 768px) {
    body {
      align-items: flex-start;
      padding: 20px 0;
    }

    .container {
      flex-direction: column;
      width: 90%;
      box-shadow: none;
      border-radius: 12px;
    }

    .keterangan, .login-form {
      width: 100%;
      padding: 25px 20px;
    }

    .keterangan img {
      width: 70px;
      margin-bottom: 10px;
    }

    .keterangan h1 {
      font-size: 18px;
    }

    .keterangan p {
      font-size: 13px;
    }

    .login-form h2 {
      font-size: 18px;
    }
  }