/*
 * Scroll-to-Top Component Styles
 */

.hm-scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-full);
    background-color: var(--color-primary);
    color: var(--color-on-primary);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    cursor: pointer;
    z-index: 50;
    
    /* Animation and Visibility */
    opacity: 0;
    visibility: hidden;
    transform: translateY(1rem) scale(0.95);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hm-scroll-top--visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.hm-scroll-top:hover {
    background-color: var(--color-secondary);
    transform: translateY(-2px) scale(1);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.hm-scroll-top:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-surface-container-low), 0 0 0 5px var(--color-secondary);
}

.hm-scroll-top__icon {
    font-size: 1.5rem;
}

@media (max-width: 768px) {
    .hm-scroll-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 3rem;
        height: 3rem;
    }
    
    .hm-scroll-top__icon {
        font-size: 1.25rem;
    }
}

/* Accessibility: Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .hm-scroll-top {
        transition: opacity 0.3s ease, visibility 0.3s ease;
        transform: none !important;
    }
}