/* General Body and Font Styles */
    body {
        font-family: "Inter", sans-serif;
        background-color: #f3f4f6;
        margin: 0;
    }

    /* Main container for centering the form */
    .main-container {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 3rem 1rem;
        min-height: 100vh;
        box-sizing: border-box;
    }

    /* Form wrapper/card */
    .form-wrapper {
        width: 100%;
        max-width: 42rem; /* max-w-2xl */
        border-radius: 0.5rem; /* rounded-lg */
        background-color: white;
        padding: 2.5rem; /* p-10 */
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
            0 4px 6px -4px rgba(0, 0, 0, 0.1);
        box-sizing: border-box;
    }

    /* Top image styling */
    .form-image {
        margin-bottom: 3rem; /* mb-12 */
        width: 100%;
        border-radius: 0.5rem;
    }

    /* Header section for title and description */
    .form-header {
        margin-bottom: 2rem; /* mb-8 */
        text-align: center;
    }

    .form-title {
        font-size: 1.875rem; /* text-2xl */
        font-weight: 600; /* font-semibold */
        color: #1f2937; /* text-gray-800 */
    }

    .form-description {
        margin-top: 0.5rem; /* mt-2 */
        font-size: 0.875rem; /* text-sm */
        color: #4b5563; /* text-gray-600 */
        line-height: 1.5;
    }

    /* Container for each form field group */
    .form-group {
        margin-bottom: 1.5rem; /* mb-6 */
    }

    /* Form labels */
    .form-label {
        display: block;
        margin-bottom: 0.5rem; /* mb-2 */
        font-size: 0.875rem; /* text-sm */
        font-weight: 500; /* font-medium */
        color: #4b5563; /* text-gray-600 */
    }

    /* Common styles for input, select, and textarea */
    .form-input,
    .form-select,
    .form-textarea {
        width: 100%;
        border-radius: 0.375rem; /* rounded-md */
        border: 1px solid #d1d5db; /* border-gray-300 */
        padding: 0.75rem; /* p-3 */
        font-size: 0.875rem; /* text-sm */
        color: #1f2937; /* text-gray-800 */
        box-sizing: border-box;
        transition: border-color 0.2s, box-shadow 0.2s;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
        border-color: #6366f1; /* focus:border-indigo-500 */
        box-shadow: 0 0 0 1px #6366f1; /* focus:ring-1 focus:ring-indigo-500 */
        outline: none;
    }

    /* Radio button group */
    .radio-group {
        display: flex;
        align-items: center;
        gap: 1.5rem;
    }

    .option-item {
        display: flex;
        align-items: center;
    }

    .form-radio {
        height: 1rem;
        width: 1rem;
        color: #4f46e5;
        margin-right: 0.5rem;
    }

    /* Consent Checkbox Group */
    .consent-group {
        display: flex;
        align-items: center;
        margin-bottom: 1.5rem;
    }

    .form-checkbox {
        height: 1rem;
        width: 1rem;
        color: #4f46e5;
    }

    .consent-label {
        margin-left: 0.5rem;
        font-size: 0.875rem;
        color: #4b5563;
    }

    .consent-label a {
        color: #4f46e5;
        text-decoration: none;
    }

    .consent-label a:hover {
        text-decoration: underline;
    }

    /* Submit Button */
    .submit-btn {
        width: 100%;
        border-radius: 0.375rem;
        background-color: #4f46e5;
        padding: 0.75rem 1.5rem;
        font-weight: 500;
        color: white;
        border: none;
        cursor: pointer;
        transition: background-color 0.3s, box-shadow 0.3s;
    }

    .submit-btn:hover {
        background-color: #4338ca;
    }

    .submit-btn:focus {
        outline: none;
        box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.5);
    }

    /* Mobile Responsive Styles */
    @media (max-width: 640px) {
        .main-container {
            padding: 1rem;
        }
        .form-wrapper {
            padding: 1.5rem;
        }
        .form-title {
            font-size: 1.5rem;
        }
    }
/* 🔹 Loader penuh layar */
    #loader {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: white; /* warna latar belakang loader */
      display: flex;
      justify-content: center;
      align-items: center;
      z-index: 9999; /* menutupi elemen lain */
      opacity: 1;
      transition: opacity 0.5s ease;
    }

    /* 🔹 Animasi loading (bola berputar) */
    .spinner {
      border: 5px solid #f3f3f3;
      border-top: 5px solid #4CAF50;
      border-radius: 50%;
      width: 60px;
      height: 60px;
      animation: spin 1s linear infinite;
    }
    
    @keyframes spin {
      100% { transform: rotate(360deg); }
    }

    @keyframes spin {
      100% { transform: rotate(360deg); }
    }

    /* 🔹 Sembunyikan loader setelah selesai */
    #loader.fade-out {
      opacity: 0;
      visibility: hidden;
    }