/**
 * SD Back to Top Button Styles
 * BEM methodology with sd- prefix
 */

.sd-back-to-top {
    position: fixed;
    bottom: 125px;
    right: 0;
    width: 40px;
    height: 40px;
    background-color: rgba(0, 0, 0, 0.4);
    border: none;
    border-top-left-radius: 5px;
    border-bottom-left-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    transform: translateY(20px);
}

.sd-back-to-top--visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sd-back-to-top:hover {
    background-color: #789d4a;
    transform: translateY(-3px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.sd-back-to-top:active {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.sd-back-to-top__icon {
    width: 24px;
    height: 24px;
    fill: #ffffff;
    transition: transform 0.2s ease;
}

.sd-back-to-top:hover .sd-back-to-top__icon {
    transform: translateY(-2px);
}

/* Accessibility - focus styles */
.sd-back-to-top:focus {
    outline: 2px solid #4a90e2;
    outline-offset: 2px;
}

.sd-back-to-top:focus:not(:focus-visible) {
    outline: none;
}

/* Print styles - hide on print */
@media print {
    .sd-back-to-top {
        display: none !important;
    }
}