/* Mobile bottom navigation */
.matrix-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #1e3a5f;
    border-top: 1px solid #2a4a6f;
    z-index: 9999;
    padding: 8px 0;
}

@media (max-width: 768px) {
    .matrix-bottom-nav { display: flex; justify-content: space-around; }
    body { padding-bottom: 70px; }
    .matrix-nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        color: #a0b4c8;
        text-decoration: none;
        font-size: 11px;
        padding: 4px 8px;
    }
    .matrix-nav-item.active, .matrix-nav-item:hover { color: #fff; }
    .matrix-nav-item svg { width: 22px; height: 22px; margin-bottom: 2px; }
}