/* ============================================================
   css/responsive.css — Media Queries
   ============================================================ */

@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    .detail-images {
        aspect-ratio: 16 / 10;
    }
    .detail-images > div {
        font-size: 2.8rem;
        min-height: 100px;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 24px;
        --spacing-2xl: 32px;
        --spacing-3xl: 48px;
    }
    .container {
        padding: 0 var(--spacing-md);
    }
    .site-header {
        padding: var(--spacing-sm) 0;
    }
    .logo {
        font-size: 1.1rem;
    }
    .header-actions {
        gap: var(--spacing-sm);
    }
    .header-actions .btn {
        padding: 6px 14px;
        font-size: 0.8rem;
        min-height: 34px;
    }
    .theme-toggle {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
    .page {
        padding: var(--spacing-md) 0 var(--spacing-xl);
    }
    .hero {
        padding: var(--spacing-md) 0 0;
    }
    .hero h1 {
        font-size: 2rem;
    }
    .hero p {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    .featured-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        margin-top: var(--spacing-lg);
    }
    .featured-title {
        font-size: 1.25rem;
        margin-top: var(--spacing-md);
    }
    .access-box {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    .access-box h2 {
        font-size: 1.4rem;
    }
    .library-header h2 {
        font-size: 1.4rem;
    }
    .library-header {
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-lg);
    }
    .prompt-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    .library-controls {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    .library-controls .search-wrap {
        flex: 1 1 auto;
    }
    .library-controls .filter-wrap {
        justify-content: flex-start;
    }
    .library-controls .filter-wrap .filter-btn {
        padding: 6px 14px;
        font-size: 0.8rem;
    }
    .detail-content {
        padding: var(--spacing-md);
    }
    .detail-content h2 {
        font-size: 1.4rem;
    }
    .detail-content .prompt-box {
        padding: var(--spacing-md);
    }
    .detail-content .prompt-box pre {
        font-size: 0.85rem;
    }
    .detail-content .copy-wrap {
        flex-direction: column;
        align-items: stretch;
    }
    .detail-content .copy-wrap .btn {
        width: 100%;
        justify-content: center;
    }
    .detail-images {
        aspect-ratio: 16 / 11;
    }
    .detail-images > div {
        font-size: 2.4rem;
        min-height: 80px;
    }
    .detail-images .label {
        font-size: 0.65rem;
        bottom: var(--spacing-sm);
        left: var(--spacing-sm);
        padding: 2px 10px;
    }
    .img-pair > div {
        font-size: 2rem;
        min-height: 64px;
    }
    .img-pair .label {
        font-size: 0.55rem;
        bottom: var(--spacing-xs);
        left: var(--spacing-xs);
        padding: 1px 8px;
    }
    .card-body {
        padding: var(--spacing-md);
    }
    .card-body h3 {
        font-size: 0.95rem;
    }
    .card-body p {
        font-size: 0.85rem;
    }
    .card-body .card-actions .btn {
        font-size: 0.8rem;
        min-height: 36px;
        padding: 6px 12px;
    }
    .feature-card .card-body {
        padding: var(--spacing-md);
    }
    .empty-state {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    .site-footer {
        padding: var(--spacing-md) 0;
        font-size: 0.8rem;
    }
}

@media (max-width: 400px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    .hero h1 {
        font-size: 1.6rem;
    }
    .hero p {
        font-size: 0.9rem;
    }
    .access-box {
        padding: var(--spacing-md);
    }
    .access-box h2 {
        font-size: 1.2rem;
    }
    .access-box input {
        padding: 12px 14px;
        font-size: 0.9rem;
    }
    .detail-content h2 {
        font-size: 1.2rem;
    }
    .detail-content .detail-desc {
        font-size: 0.9rem;
    }
    .detail-content .prompt-box pre {
        font-size: 0.8rem;
    }
    .library-controls .search-wrap input {
        font-size: 0.85rem;
        padding: 10px 14px 10px 38px;
    }
    .library-controls .search-wrap .search-icon {
        font-size: 0.9rem;
        left: 12px;
    }
    .btn {
        font-size: 0.85rem;
        padding: 10px 20px;
        min-height: 44px;
    }
    .btn-sm {
        font-size: 0.75rem;
        padding: 6px 12px;
        min-height: 32px;
    }
    .theme-toggle {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
    .header-actions .btn {
        font-size: 0.75rem;
        padding: 4px 10px;
        min-height: 30px;
    }
    .detail-images > div {
        font-size: 1.8rem;
        min-height: 64px;
    }
    .img-pair > div {
        font-size: 1.6rem;
        min-height: 56px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}