.scroll-to-top {
    position: fixed;
    bottom: 100px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    z-index: 9999;
    opacity: 0;
    transition: all 0.3s ease;
    background: linear-gradient(to right, #6a11cb, #2575fc);
    color: white;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(106, 17, 203, 0.4);
}

.scroll-to-top.visible {
    display: flex;
    opacity: 1;
}

.scroll-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 6px 20px rgba(106, 17, 203, 0.6);
}

/* Адаптивность */
@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 60px;
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .scroll-to-top {
        bottom: 60px;
        right: 10px;
        width: 40px;
        height: 40px;
    }
}