/* ============================================
   UTILITIES - Helper Classes
   ============================================ */

.text-center {
    text-align: center;
}
.mt-20 {
    margin-top: 20px;
}
.mb-20 {
    margin-bottom: 20px;
}
.hidden {
    display: none !important;
}

/* ----- Back-to-Top Visibility ----- */
.back-to-top.visible {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ----- Reduced Motion ----- */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}