/* =========================================
   RESPONSIVE DESIGN
   ========================================= */

/* Tablet (768px and below) */
@media (max-width: 768px) {
    .app-header {
        padding: 0 var(--space-2);
    }

    .app-title {
        display: none;
    }

    .header-center {
        max-width: 200px;
        margin: 0 var(--space-2);
    }

    .header-right .btn span {
        display: none;
    }

    .sidebar {
        width: 240px;
    }

    .config-panel {
        width: 280px;
    }

    .editor-toolbar {
        padding: 0 var(--space-2);
        gap: var(--space-2);
    }

    .toolbar-group {
        padding-right: var(--space-2);
    }

    .export-options {
        grid-template-columns: 1fr;
    }

    .templates-grid,
    .widgets-grid,
    .sections-grid,
    .elements-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
}

/* Mobile (600px and below) */
@media (max-width: 600px) {
    .app-header {
        height: 50px;
    }

    .header-center {
        display: none;
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: var(--header-height);
        bottom: 0;
        z-index: var(--z-fixed);
        width: 280px;
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }

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

    .config-panel {
        position: fixed;
        right: 0;
        top: var(--header-height);
        bottom: 0;
        z-index: var(--z-fixed);
        width: 280px;
        transform: translateX(100%);
        transition: transform var(--transition-base);
    }

    .config-panel.open {
        transform: translateX(0);
    }

    .editor-toolbar {
        height: 40px;
        overflow-x: auto;
        overflow-y: hidden;
    }

    .toolbar-group {
        flex-shrink: 0;
    }

    .markdown-textarea {
        padding: var(--space-4);
        font-size: var(--font-size-sm);
    }

    .markdown-preview {
        padding: var(--space-4);
        font-size: var(--font-size-sm);
    }

    .modal-content {
        width: 95%;
        max-width: none;
    }

    .modal-header,
    .modal-body {
        padding: var(--space-4);
    }

    .export-options {
        grid-template-columns: 1fr;
    }
}

/* Small Mobile (400px and below) */
@media (max-width: 400px) {
    .app-header {
        gap: var(--space-1);
    }

    .app-logo {
        width: 24px;
        height: 24px;
    }

    .icon-btn {
        width: 32px;
        height: 32px;
    }

    .toolbar-btn {
        width: 28px;
        height: 28px;
    }

    .markdown-textarea {
        padding: var(--space-3);
    }

    .markdown-preview {
        padding: var(--space-3);
    }
}

/* Large Screens (1920px and above) */
@media (min-width: 1920px) {
    .sidebar {
        width: 320px;
    }

    .config-panel {
        width: 360px;
    }

    .header-center {
        max-width: 600px;
    }
}