/* ===================================== */
/* BACK TO TOP BUTTON */
/* ===================================== */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(207, 109, 23, 0.4);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(207, 109, 23, 0.6);
}

.back-to-top:active {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(207, 109, 23, 0.4);
}

.back-to-top .material-icons {
    font-size: 24px;
    color: var(--color-white);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 30px;
        right: 20px;
        width: 48px;
        height: 48px;
    }

    .back-to-top .material-icons {
        font-size: 22px;
    }
}

@media (max-width: 480px) {
    .back-to-top {
        bottom: 25px;
        right: 15px;
        width: 44px;
        height: 44px;
    }

    .back-to-top .material-icons {
        font-size: 20px;
    }
}