@media (max-width: 768px) {
    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.7);
        z-index: 30;
    }
    .sidebar-overlay.active { display: block; }
    
    aside {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    aside.active { transform: translateX(0); }
    
    main { margin-left: 0 !important; padding: 1rem !important; }
    
    .mobile-header {
        display: flex !important;
        align-items: center;
        justify-content: space-between;
        padding: 1rem;
        background: var(--glass-bg);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border-color);
        position: sticky;
        top: 0;
        z-index: 25;
    }
    
    .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-cols-3 { grid-template-columns: 1fr; }
    .grid-cols-2 { grid-template-columns: 1fr; }
    
    .hide-mobile { display: none; }
}

@media (min-width: 769px) {
    .mobile-header { display: none !important; }
}