#scrollToTopBtn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    border: none;
    outline: none;
    background-color: var(--primary);
    color: white;
    cursor: pointer;
    padding: 0;
    border-radius: 50% 50% 0% 50%;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
}

#scrollToTopBtn.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#scrollToTopBtn:hover {
    background-color: var(--primary-dark);
    transform: scale(1.1);
}

#scrollToTopBtn svg {
    width: 24px;
    height: 24px;
}

@media (max-width: 768px) {
    #scrollToTopBtn {
        bottom: 20px;
        right: 20px;
        width: 44px; /* Minimum touch target */
        height: 44px;
    }
}