body {
        font-family: 'Poppins', sans-serif;
        background-color: #e9ecef;
        margin: 0;
        padding: 0;
        display: flex;
        justify-content: center;
        align-items: center;
        min-height: 100vh;
    }

    .register-container {
        background: #ffffff;
        border-radius: 15px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        display: flex;
        flex-direction: column;
        max-width: 900px;
        width: 100%;
        animation: fadeIn 1s ease-in-out;
        padding: 40px;
        margin: 20px;
    }

    .register-header {
        text-align: center;
        margin-bottom: 30px;
    }

    .register-header h1 {
        font-size: 2.5rem;
        font-weight: 700;
        color: #333;
        margin-bottom: 20px;
        position: relative;
    }

    .register-header h1::after {
        content: '';
        display: block;
        width: 60px;
        height: 4px;
        background: linear-gradient(135deg, #6a11cb, #2575fc);
        margin: 10px auto 0;
        border-radius: 2px;
    }

    .register-header p {
        font-size: 1.1rem;
        color: #666;
        line-height: 1.6;
    }

    .register-form {
        display: flex;
        flex-direction: column;
    }

    .form-control,
    .form-select {
        border-radius: 10px;
        padding: 12px;
        border: 1px solid #ddd;
        margin-bottom: 15px;
        transition: all 0.3s ease;
    }

    .form-control:focus,
    .form-select:focus {
        border-color: #6a11cb;
        box-shadow: 0 0 8px rgba(106, 17, 203, 0.1);
    }

    .btn-register {
        background-color: #6a11cb;
        color: white;
        border: none;
        border-radius: 10px;
        padding: 12px;
        width: 100%;
        font-weight: 600;
        transition: all 0.3s ease;
    }

    .btn-register:hover {
        background-color: #2575fc;
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(106, 17, 203, 0.1);
    }

    .btn-register:disabled {
        background-color: #6c757d;
        cursor: not-allowed;
    }

    .btn-register.btn-danger {
        background-color: #dc3545;
    }

    .form-label {
        font-weight: 600;
        margin-bottom: 8px;
        color: #495057;
    }

    .radio-group {
        display: flex;
        gap: 20px;
        margin-top: 8px;
    }

    .radio-group label {
        display: flex;
        align-items: center;
        gap: 5px;
        cursor: pointer;
    }

    .radio-group input[type="radio"] {
        margin: 0;
    }

    .forgot-password {
        color: #6a11cb;
        text-decoration: none;
        font-weight: 500;
        transition: color 0.3s;
    }

    .forgot-password:hover {
        color: #2575fc;
        text-decoration: underline;
    }

    .loader {
        display: none;
        color: #6a11cb;
        font-size: 0.875rem;
        margin-top: 5px;
    }

    .select2-container--bootstrap5 .select2-selection {
        height: auto;
        padding: 12px;
        border-radius: 10px;
        border: 1px solid #ddd;
    }

    .select2-container--bootstrap5 .select2-selection--single .select2-selection__rendered {
        padding: 0;
    }

    .select2-container--bootstrap5 .select2-selection--single .select2-selection__arrow {
        height: 100%;
    }

    .result-box {
        background-color: #f8f9fa;
        border-radius: 10px;
        padding: 15px;
        margin-top: 20px;
        border-left: 4px solid #6a11cb;
    }

    .result-box p {
        margin-bottom: 5px;
    }

    .result-box strong {
        color: #6a11cb;
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* Responsive Styles */
    @media (max-width: 768px) {
        .register-container {
            padding: 20px;
        }

        .register-header h1 {
            font-size: 2rem;
        }

        .register-header p {
            font-size: 1rem;
        }
    }

    @media (max-width: 480px) {
        .register-header h1 {
            font-size: 1.8rem;
        }

        .register-header p {
            font-size: 0.9rem;
        }

        .radio-group {
            flex-direction: column;
            gap: 10px;
        }
    }

    .text-center {
        text-align: center;
        margin-top: 20px;
        /* sama dengan mt-3 jika 1rem = 16px */
        color: #666;
        font-size: 0.9rem;
    }

    .forgot-password {
        color: var(--primary-color, #4a6bff);
        /* fallback jika --primary-color tidak ada */
        font-weight: 500;
        text-decoration: none;
        transition: var(--transition, all 0.3s ease);
        /* fallback jika --transition tidak ada */
    }

    .forgot-password:hover {
        color: var(--secondary-color, #3a56d4);
        /* fallback jika --secondary-color tidak ada */
        text-decoration: underline;
    }