.mask-dark {
    background-color: rgba(0, 0, 0, 0.2);
}

.mask-darker {
    background-color: rgba(0, 0, 0, 0.5);
}

.mask-gradient {
    background: linear-gradient(45deg, rgba(29, 236, 197, 0.7), rgba(91, 14, 214, 0.7) 100%);
}