/* Global Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
  }
  
  /* Container utama */
  .containerku {
    max-width: 800px;
    margin-top: 130px !important;
    margin: 40px auto;
    padding: 30px;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  }
  
  /* Header halaman */
  .header {
    text-align: center;
    margin-bottom: 30px;
  }
  
  .header h1 {
    font-size: 32px;
    color: #27548A;
    margin-bottom: 10px;
  }
  
  .header p {
    font-size: 16px;
    color: #555;
  }
  
  /* Form Group */
  .form-group {
    margin-bottom: 20px;
  }
  
  label {
    font-weight: 600;
    display: block;
    margin-bottom: 8px;
    color: #333;
  }
  
  /* Input dan Textarea */
  input[type="text"],
  input[type="tel"],
  select,
  textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 15px;
    background-color: #f9f9f9;
    transition: border-color 0.3s;
  }
  
  input:focus,
  textarea:focus,
  select:focus {
    border-color: #e63946;
    outline: none;
    background-color: #fff;
  }
  
  /* File upload */
  input[type="file"] {
    background-color: transparent;
    border: none;
    font-size: 14px;
  }
  
  /* Tombol Submit */
  button[type="submit"] {
    padding: 12px 24px;
    background-color: #27548A;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
  }
  
  button[type="submit"]:hover {
    background-color: #183B4E;
  }
  
  /* Pesan kesalahan */
  .text-danger {
    font-size: 14px;
    color: #d9534f;
    margin-top: 5px;
  }
  
  /* Responsive */
  @media (max-width: 576px) {
    .container {
      padding: 20px;
    }
  
    .header h1 {
      font-size: 24px;
    }
  }