/* Scroll to Top Button */
#scroll-to-top {
    position: fixed;
    right: 2rem;
    bottom: 2rem;
    width: 50px;
    height: 50px;
    background: var(--secondary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 999;
}

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

#scroll-to-top:hover {
    background: var(--secondary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

#scroll-to-top svg {
    width: 24px;
    height: 24px;
}