/* Back to Top Button Styles */
#back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    z-index: 1000;
}

#back-to-top:hover,
#back-to-top:focus {
    transform: scale(1.1);
    box-shadow: 0 6px 12px rgba(0,0,0,0.4);
    outline: none;
}

#back-to-top:focus {
    outline: 3px solid var(--secondary-color);
    outline-offset: 2px;
}

#back-to-top.show {
    opacity: 1;
    visibility: visible;
}
</create_file>