/* ─── Responsive ──────────────────────────────────────── */

@media (max-width: 1024px) {
    .poster-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .admin-grid-2 {
        grid-template-columns: 1fr;
    }

    .generate-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .order-detail-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }

    /* Header */
    .main-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-card);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow-lg);
    }

    .main-nav.open {
        display: flex;
    }

    .nav-dropdown-content {
        position: static;
        box-shadow: none;
        border: none;
        padding-left: 16px;
    }

    .nav-dropdown:hover .nav-dropdown-content {
        display: none;
    }

    .nav-dropdown.open .nav-dropdown-content {
        display: block;
    }

    .mobile-menu-btn {
        display: block;
    }

    .header-account {
        display: none;
    }

    /* Hero */
    .hero {
        padding: 60px 0 80px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-prices {
        flex-direction: column;
        gap: 4px;
    }

    .hero-price-sep {
        display: none;
    }

    /* Poster Grid */
    .poster-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .poster-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Catalogue */
    .catalogue-layout {
        grid-template-columns: 1fr;
    }

    .catalogue-filters {
        display: none;
        position: fixed;
        inset: 0;
        z-index: 200;
        background: var(--bg-card);
        padding: 20px;
        overflow-y: auto;
    }

    .catalogue-filters.open {
        display: block;
    }

    .filter-header-mobile {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 20px;
    }

    .filter-header-mobile h3 {
        font-size: 1.2rem;
    }

    .filter-close {
        background: none;
        border: none;
        font-size: 2rem;
        cursor: pointer;
    }

    .filter-toggle-btn {
        display: flex;
    }

    /* Poster Detail */
    .poster-detail-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .poster-image-col {
        position: static;
    }

    .poster-detail-title {
        font-size: 1.6rem;
    }

    /* Cart */
    .cart-content {
        grid-template-columns: 1fr;
    }

    .cart-summary-card {
        position: static;
    }

    /* Steps */
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* Categories grid */
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* Form grids */
    .form-grid-2,
    .form-grid-3,
    .form-grid-4,
    .form-row {
        grid-template-columns: 1fr;
    }

    /* Generate */
    .generate-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Admin */
    .admin-sidebar {
        transform: translateX(-100%);
    }

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

    .admin-main {
        margin-left: 0;
    }

    .admin-menu-toggle {
        display: block;
    }

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

@media (max-width: 480px) {
    .poster-grid {
        grid-template-columns: 1fr;
    }

    .poster-grid-4 {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 1.8rem;
    }

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

    .trust-grid {
        flex-direction: column;
        gap: 16px;
    }

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

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

    .cart-item {
        flex-wrap: wrap;
    }

    .result-actions {
        flex-direction: column;
    }

    .error-actions {
        flex-direction: column;
    }
}