/* ============================================
   SCROLL TO TOP BUTTON
   ============================================ */

.scroll-to-top {
    position: fixed;
    bottom: 80px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue) 49%, var(--primary-orange) 51%, var(--primary-orange) 100%);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(30, 64, 175, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(100px);
    transition: none;
    z-index: 999;
}

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

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 30px rgba(30, 64, 175, 0.6);
}

.scroll-to-top:active {
    transform: translateY(-2px);
}

.scroll-to-top svg {
    color: white;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

/* Mobile */
@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 90px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}