body.overflow-hidden { overflow: hidden; }
.mobile-nav-hidden {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 30;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease-in-out;
}
.mobile-nav-visible { opacity: 1; pointer-events: auto; }
.brand-badge i {
    position: relative;
    z-index: 2;
}
.brand-badge .brand-emoji {
    position: absolute;
    font-size: 1.6rem;
    line-height: 1;
    z-index: 1;
    opacity: 0.45;
    pointer-events: none;
}