@media (max-width: 1024px) {
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .mobile-overlay {
        display: block;
    }

    .sidebar {
        transform: translateX(-100%);
        z-index: 200;
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        width: 100%;
    }

    .main-header {
        padding-left: 5rem;
    }

    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 1rem;
    }

    .chatbot-container {
        width: 90vw;
        height: 80vh;
        bottom: 1rem;
        right: 1rem;
    }

    .chatbot-fab {
        bottom: 1rem;
        right: 1rem;
    }
}

@media (max-width: 768px) {
    .main-header {
        padding: 0 1rem 0 5rem;
    }

    .main-body {
        padding: 1rem;
    }

    .home-header {
        padding: 1.5rem;
    }

    .filters-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-meta {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .mobile-menu-toggle {
        width: 44px;
        height: 44px;
    }

    .chatbot-container {
        width: 95vw;
        height: 85vh;
        bottom: 0.5rem;
        right: 0.5rem;
    }
}

@media (max-width: 480px) {
    .sidebar {
        width: 85vw;
    }

    .main-header {
        padding: 0 0.5rem 0 4rem;
    }

    .header-title {
        font-size: 1.25rem;
    }

    .header-title span {
        display: none;
    }

    .mobile-menu-toggle {
        top: 0.75rem;
        left: 0.75rem;
        width: 40px;
        height: 40px;
    }
}