/* Responsive Design */
@media (max-width: 768px) {
    .quarkcode-container {
        margin: 10px;
        padding: 15px;
    }

    .quarkcode-header h3 {
        font-size: 24px;
    }

    .quarkcode-modes {
        flex-direction: column;
        align-items: center;
    }

    .mode-btn {
        width: 200px;
        margin-bottom: 10px;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 10px;
    }

    .gallery-item {
        height: 150px;
    }

    .image-buttons {
        flex-direction: column;
        align-items: center;
    }

    .download-btn,
    .continue-edit-btn {
        width: 200px;
        justify-content: center;
    }

    .usage-info {
        font-size: 12px;
        padding: 6px 12px;
    }
}

@media (max-width: 480px) {
    .quarkcode-header h3 {
        font-size: 20px;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .gallery-item {
        height: 120px;
    }
}

/* Print Styles */
@media print {
    .quarkcode-container {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }

    .generate-button,
    .mode-btn,
    .image-buttons,
    .gallery-actions {
        display: none !important;
    }
}

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

/* Focus Styles */
.mode-btn:focus,
.generate-button:focus,
.download-btn:focus,
.continue-edit-btn:focus {
    outline: 2px solid #ffbf47;
    outline-offset: 2px;
}

.quarkcode-form textarea:focus,
.quarkcode-form input[type="file"]:focus {
    outline: 2px solid #ffbf47;
    outline-offset: 2px;
}