.scroll-top-btn {
    position: fixed;
    right: 25px;
    bottom: 30px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background-color: #ff6a00;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
    z-index: 9999;
    transition: all 0.3s ease;
}

.scroll-top-btn:hover {
    background-color: #e35f00;
    transform: translateY(-3px);
}

.scroll-top-btn:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

@media (max-width: 767px) {
    .scroll-top-btn {
        right: 16px;
        bottom: 20px;
        width: 40px;
        height: 40px;
        font-size: 18px;
    }
}