/* Кнопка "Наверх" */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: #417690;
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    display: none;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
    opacity: 0;
    transform: translateY(20px);
}

.scroll-to-top:hover {
    background-color: #2c5aa0;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.scroll-to-top.show {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}