.mobile-nav {
    display: none;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--nav-mobile-background-color, #030915);
    border-top: 1px solid rgba(255,255,255,0.08);
    z-index: 1050;
    padding: 0 0 4px 0;
}

.mobile-nav-menu {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    list-style: none;
    margin: 0;
    padding: 0 18px 0 18px;
    height: 50px;
    position: relative;
}

.mobile-nav-item {
    flex: 1 1 0;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    position: relative;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--nav-color, #9aaad4);
    background: none;
    border: none;
    outline: none;
    font-size: 1.5rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    transition: color 0.2s, background 0.2s;
    margin-bottom: 4px;
}

.mobile-nav-link.active,
.mobile-nav-link:focus,
.mobile-nav-link:hover {
    color: var(--accent-color, #2f7bff);
    background: rgba(47,123,255,0.08);
}

.mobile-nav-home {
    position: absolute;
    left: 50%;
    transform: translateX(-50%) translateY(-18px);
    background: var(--accent-color, #2f7bff);
    color: #fff !important;
    box-shadow: 0 2px 12px rgba(47,123,255,0.18);
    z-index: 2;
    width: 56px;
    height: 56px;
    font-size: 1.7rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid var(--background-color, #050b1a);
}

.mobile-nav-home.active,
.mobile-nav-home:focus,
.mobile-nav-home:hover {
    background: #1a5fd7;
}

@media (max-width: 991px) {
    .mobile-nav {
        display: block;
    }
    body {
        padding-bottom: 70px;
    }
}