/* File Sorter only: the same components become a single-pane phone workspace. */
#sorter-mobile-nav, #sorter-mobile-viewer-toolbar, .sorter-mobile-only,
.tree-actions-button, .tree-select-checkbox, .pdfv-fit-width, .pdfv-zoom-step { display: none; }
#sorter-drawer-backdrop[hidden] { display: none; }
.sorter-select-mode .tree-select-checkbox { display: inline-block; width: 24px; height: 24px; flex-shrink: 0; }
@media (pointer: coarse) {
    .tree-actions-button { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; }
}
@media (max-width: 859px) {
    :root { --sorter-header-height: 60px; --sorter-nav-height: 48px; --sorter-top: calc(var(--sorter-header-height) + var(--sorter-nav-height)); --sorter-viewport-height: 100vh; --sorter-viewport-top: 0px; }
    @supports (height: 100dvh) { :root { --sorter-viewport-height: 100dvh; } }
    .main-toolbar { top: var(--sorter-viewport-top); height: auto; min-height: 60px; padding: max(6px, env(safe-area-inset-top)) 10px 6px; gap: 8px; }
    .main-toolbar > .toolbar-section { flex: 0 0 auto; }
    .main-toolbar .toolbar-divider, .main-toolbar .sw-toolbar-middle-slot, #sw-toolbar-editor-btn { display: none; }
    .main-toolbar .toolbar-right-section { position: static; margin: 0; min-width: 0; flex: 1; justify-content: center; }
    .main-toolbar .toolbar-static-info { min-width: 0; gap: 0; }
    .main-toolbar .toolbar-document-title { font-size: 16px; }
    .main-toolbar .valo-toolbox-link { position: static; flex: 0 0 auto; z-index: auto; min-height: 44px; }
    .main-toolbar .valo-toolbox-link img { height: 25px; max-width: 90px; object-fit: contain; }
    .toggle-avatar-btn { min-height: 44px; }
    #sorter-mobile-nav { display: flex; align-items: center; justify-content: space-between; position: fixed; top: calc(var(--sorter-viewport-top) + var(--sorter-header-height)); left: 0; right: 0; height: var(--sorter-nav-height); padding: 2px 10px; background: var(--bg-sidebar); border-bottom: 1px solid var(--border-color); z-index: 49; }
    #sorter-mobile-nav [role="tablist"] { display: flex; gap: 4px; }
    #sorter-mobile-nav button, .sorter-mobile-only { min-height: 44px; padding: 6px 14px; border: 0; border-radius: 8px; font: inherit; font-size: 14px; color: var(--text-primary); background: transparent; cursor: pointer; }
    #sorter-mobile-nav [aria-selected="true"] { background: var(--accent-blue); color: white; }
    #sorter-mobile-nav button:disabled { opacity: .45; cursor: not-allowed; }
    .sorter-mobile-only { display: inline-flex; align-items: center; justify-content: center; }
    #app-container { position: fixed; top: calc(var(--sorter-viewport-top) + var(--sorter-top)); left: 0; right: 0; margin: 0; height: max(0px, calc(var(--sorter-viewport-height) - var(--sorter-top))); min-width: 0; }
    #sidebar, #sidebar.collapsed { position: fixed; top: calc(var(--sorter-viewport-top) + var(--sorter-header-height)); bottom: auto; left: 0; width: 100%; min-width: 0; height: calc(var(--sorter-viewport-height) - var(--sorter-header-height)); padding: 12px; z-index: 1401; transform: translateX(-105%); visibility: hidden; transition: transform .2s ease, visibility .2s; box-shadow: 8px 0 30px #0005; }
    body.sorter-drawer-open #sidebar { transform: translateX(0); visibility: visible; }
    #sidebar-content { min-width: 0; width: 100%; }
    #sorter-projects-close { flex-shrink: 0; align-self: flex-end; }
    #sidebar-toggle { display: none; }
    #sorter-drawer-backdrop { position: fixed; top: calc(var(--sorter-viewport-top) + var(--sorter-header-height)); left: 0; right: 0; height: calc(var(--sorter-viewport-height) - var(--sorter-header-height)); background: #0008; border: 0; z-index: 1400; }
    #sidebar button, #chat-list li { min-height: 44px; }
    #chat-list .chat-actions { opacity: 1; }
    #chat-list .chat-actions button { display: inline-flex; min-width: 44px; align-items: center; justify-content: center; }
    #chat-list .chat-menu { left: 12px !important; right: 12px; max-width: calc(100vw - 24px); z-index: 1500; }
    #main-content, #main-content.maps-panel-open { width: 100%; min-width: 0; min-height: 0; margin-right: 0 !important; flex: 1; transition: none; }
    #chat-area { padding: 12px 12px 0; min-width: 0; flex: 1 0 auto; }
    #messages { min-width: 0; }
    #input-area { padding: 8px 10px max(8px, env(safe-area-inset-bottom)); flex: 0 0 auto; width: 100%; transform: none !important; }
    .input-container { flex: 0 0 auto; min-height: 0; padding: 6px; border-radius: 16px; }
    #query { flex: 0 0 auto; min-height: 40px; max-height: min(160px, 25dvh); font-size: 16px; width: 100%; margin-bottom: 4px; }
    #input-area .input-toolbar { flex-shrink: 0; min-width: 0; }
    #input-area button { min-width: 44px; min-height: 44px; }
    html[data-theme="light"] #input-area .upload-btn svg,
    html:not(.dark):not([data-theme="dark"]) #input-area .upload-btn svg { filter: brightness(0); }
    #input-area #send { background: var(--accent-blue); position: relative; }
    .toolbar-left { min-width: 0; gap: 2px; flex-wrap: wrap; }
    .toolbar-right { flex-shrink: 0; }
    .welcome-main-text { font-size: clamp(24px, 7vw, 32px); }
    .welcome-sub-text { font-size: 14px; }
    .welcome-message { margin-bottom: 12px; }
    .ai-disclaimer { font-size: 11px; line-height: 1.3; padding: 0 4px; }
    #upload-queue:not([style*="display: none"]) { height: auto; max-height: 100px; margin-bottom: 6px; }
    #upload-queue:empty { display: none; }
    #upload-queue .upload-chip { max-width: 180px; max-height: 90px; }
    #upload-queue .upload-chip.image-chip { width: 100px; height: 90px; }
    #upload-queue .remove-btn { min-width: 44px; min-height: 44px; }
    .file-dropdown, .templates-dropdown { max-width: calc(100vw - 24px); max-height: min(400px, 50dvh); overflow-y: auto; }
    #mode-selector-trigger { min-height: 44px; padding-inline: 8px; }
    body.sorter-files-active:not(.sorter-viewer-active) #main-content { visibility: hidden; pointer-events: none; }
    #maps-panel { top: calc(var(--sorter-viewport-top) + var(--sorter-top)); left: 0; right: 0; width: 100% !important; min-width: 0; max-width: none; height: calc(var(--sorter-viewport-height) - var(--sorter-top)); z-index: 48; box-shadow: none; transform: none; visibility: hidden; transition: none; }
    body.sorter-files-active:not(.sorter-viewer-active) #maps-panel.open { visibility: visible; }
    #maps-resize-handle { display: none; }
    #maps-panel .maps-editor-row { position: static; flex-shrink: 0; padding: 6px 10px; border-bottom: 1px solid var(--border-color); }
    #maps-panel .maps-inline-toolbar { width: 100%; justify-content: flex-start; flex-wrap: wrap; gap: 4px; transform: none; }
    #maps-panel .maps-inline-btn { min-width: 44px; width: auto; min-height: 44px; color: var(--text-primary); }
    #sorter-select-files { margin-left: auto; }
    #sorter-select-files[aria-pressed="true"] { background: var(--accent-blue); color: white; }
    #maps-panel .panel-content { height: auto; flex: 1; min-height: 0; }
    #maps-panel .mapping-edit-lock-notice { margin: 10px 10px 0; padding: 9px 10px; gap: 8px; }
    #maps-panel.sorter-files-loading #maps-tree { visibility: hidden; }
    #maps-panel.sorter-files-loading .maps-inline-toolbar,
    #maps-panel.sorter-files-loading .panel-footer { pointer-events: none; opacity: .5; }
    #maps-panel.sorter-files-loading #maps-tree-container::before { content: 'Loading files…'; display: block; padding: 16px; color: var(--text-secondary); }
    #maps-panel .panel-header { display: none; }
    #maps-panel .panel-footer { padding: 8px 12px max(8px, env(safe-area-inset-bottom)); flex-shrink: 0; }
    #maps-tree-container, #rules-tree-container { min-height: 0; padding: 8px; padding-bottom: 16px; overscroll-behavior: contain; }
    #maps-tree ul, #rules-tree ul { padding-left: 12px; }
    #maps-tree > ul { padding-left: 0; }
    #maps-tree .tree-item { min-height: 48px; min-width: 180px; gap: 4px; }
    #maps-tree .folder-name, #maps-tree .pdf-name { min-width: 0; flex: 1; white-space: normal; overflow-wrap: anywhere; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; font-size: 14px; line-height: 1.4; }
    #maps-tree [contenteditable="true"] { display: block; overflow: visible; }
    #maps-tree .toggle-arrow { flex-shrink: 0; width: 32px; height: 44px; }
    .tree-actions-button { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; min-width: 44px; min-height: 44px; color: var(--text-primary); border: 0; background: transparent; font-size: 24px; }
    .mobile-action-sheet { z-index: 3000; border-radius: 16px; background: var(--bg-sidebar); color: var(--text-primary); box-shadow: 0 -8px 40px #0006; padding: 12px; }
    .mobile-action-sheet-title { font-weight: 600; padding: 8px; }
    .mobile-action-sheet button { min-height: 44px; }
    .mobile-action-sheet-close { width: 100%; justify-content: center; }
    #sorter-mobile-viewer-toolbar { position: fixed; top: calc(var(--sorter-viewport-top) + var(--sorter-top)); left: 0; right: 0; z-index: 49; background: var(--bg-sidebar); }
    body.sorter-viewer-active #sorter-mobile-viewer-toolbar { display: block; }
    #sorter-mobile-viewer-toolbar .sw-pdf-toolbar-info { display: flex; flex-wrap: wrap; width: 100%; max-width: none; justify-content: flex-start; gap: 4px; padding: 4px 8px; }
    #sorter-mobile-viewer-toolbar .sw-pdf-toolbar-title { order: -2; flex: 1 1 calc(100% - 56px); max-width: none; min-height: 44px; text-align: left; font-size: 14px; display: block; line-height: 44px; }
    #sorter-mobile-viewer-toolbar #pdf-viewer-close { order: -1; min-width: 44px; height: 44px; }
    #sorter-mobile-viewer-toolbar .pdfv-fit-width, #sorter-mobile-viewer-toolbar .pdfv-zoom-step { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; min-width: 44px; color: var(--text-primary); border: 1px solid var(--border-color); border-radius: 8px; background: transparent; }
    #sorter-mobile-viewer-toolbar .sw-pdf-zoom-input { height: 44px; font-size: 16px; }
    body.sorter-viewer-active #pdf-viewer-overlay { padding-top: var(--sorter-viewer-toolbar-height, 100px); }
    #pdf-viewer-pages-container { padding: 8px; overscroll-behavior: contain; }
    #pdf-viewer-page-indicator { bottom: max(12px, env(safe-area-inset-bottom)); left: 12px; }
    .modal, #settings-modal { padding: 8px; }
    .modal .modal-content { max-width: calc(100vw - 16px) !important; max-height: calc(var(--sorter-viewport-height) - 16px); overflow-y: auto; }
    .modal button { min-height: 44px; }
    .modal input, .modal textarea, #rules-rich-editor { font-size: 16px; }
    .rules-modal-content { width: calc(100vw - 16px) !important; height: calc(var(--sorter-viewport-height) - 16px); padding: 0; }
    .rules-split-layout { grid-template-columns: 1fr; grid-template-rows: minmax(100px, 25%) minmax(0, 1fr); }
    .rules-files-view { padding: 10px; background: var(--bg-sidebar); }
    .rules-list-title { margin-bottom: 4px; }
    .rules-editor-view { min-width: 0; padding: 8px; }
    .rules-toolbar { flex-wrap: wrap; }
    .rules-toolbar-btn { min-width: 44px; min-height: 44px; }
    .rules-editor-meta-row { flex-wrap: wrap; }
    #rules-text-editor-container { min-height: 0; }
    .modal .close { min-width: 44px; }
    .sorter-mobile-only:focus-visible, .tree-actions-button:focus-visible, #sorter-mobile-nav button:focus-visible { outline: 2px solid var(--accent-blue); outline-offset: 2px; }
    @media (max-width: 359px) { .main-toolbar .valo-toolbox-link { display: none; } }
    @media (prefers-reduced-motion: reduce) { #sidebar { transition: none; } }
}