.glass-nav {
    position: fixed;
    top: 10px;
    left: 10px;
    right: 10px;
    width: auto; 
    
    z-index: 2000;
    /* PERFORMANCE: Solid variable background (blur/saturate removed) */
    background: var(--glass-bg); 
    
    border: 1px solid var(--glass-border);
    border-radius: 56px; 
    box-shadow: var(--shadow);
    
    height: 48px;
    display: flex;
    align-items: center;
    
    /* PERFORMANCE: Target specific properties for GPU efficiency */
    transition: transform 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
    
    /* Hardware acceleration for the floating bar */
    transform: translate3d(0, 0, 0);
    will-change: transform;
}

.nav-container {
    width: 100%;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Adjusting the Mobile Menu */
@media (max-width: 1024px) {
    .nav-menu {
        position: absolute;
        top: 60px; 
        left: 0;
        width: 100%;
        background: var(--glass-bg);
        /* PERFORMANCE: Glass filters removed for mobile fluidity */
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        
        border-radius: 20px; 
        border: 1px solid var(--glass-border);
        
        height: 0;
        opacity: 0;
        pointer-events: none;
        
        /* OPTIMIZATION: Logic preserved, using scale3d/translate3d hooks internally */
        transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
        transform: translate3d(0, -10px, 0);
        will-change: transform, opacity;
    }

    .nav-menu.active {
        height: auto;
        padding: 20px;
        opacity: 1;
        pointer-events: all;
        box-shadow: var(--shadow);
        /* GPU-accelerated reveal */
        transform: translate3d(0, 0, 0);
    }
}