.btn-custom {
    background-color: #72101D;
    color: white;
    border: 1px solid #72101D;
    transition: background-color 0.3s ease;
}

.btn-custom:disabled {
    background-color: #4D0B14;
    border-color: #4D0B14;
    color: #ccc;
    cursor: not-allowed;
    opacity: 0.8;
}

.btn-custom:not(:disabled) {
    background-color: #81202B;
    border-color: #81202B;
    cursor: pointer;
}

.btn-custom:not(:disabled):hover {
    background-color: #902630;
    border-color: #902630;
}