/* ============================
   Back to Top Button
============================ */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: #eb3b49;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 1000;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    text-decoration: none;
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(235, 59, 73, 0.4);
}

.arrow-up {
    width: 12px;
    height: 12px;
    border-top: 2px solid #fff;
    border-left: 2px solid #fff;
    transform: rotate(45deg);
    margin-top: 4px;
    /* Adjust for visual centering */
}