:root {
  color-scheme: light;
  --bg: #fbfbfa;
  --panel: #f3f4f4;
  --panel-alt: #e9ebeb;
  --panel-soft: #dfe2e4;
  --line: #d5d8d8;
  --line-strong: #92999f;
  --text: #1f2328;
  --muted: #59636e;
  --muted-2: #7c858d;
  --blue: #59636e;
  --blue-strong: #dfe2e4;
  --blue-soft: #e9ebeb;
  --green: #59636e;
  --red: #6d747b;
  --topbar-height: 42px;
  --statusbar-height: 22px;
  --tree-width: 280px;
  --task-width: 330px;
  font-family: Inter, "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; }

body { background: var(--bg); color: var(--text); font-size: 13px; }

button, input, textarea { font: inherit; }
button { color: inherit; }

.app-shell { width: 100vw; height: 100vh; display: block; background: var(--bg); }

.topbar { display: flex; align-items: center; gap: 18px; padding: 0 8px 0 10px; border-bottom: 1px solid var(--line); background: var(--bg); user-select: none; }
.brand { display: flex; align-items: center; gap: 8px; min-width: 188px; }
.brand-mark { display: none; }
.brand-name { font-weight: 650; letter-spacing: .01em; }
.version { padding: 2px 6px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); color: var(--muted); font-size: 10px; }

.workflow { display: flex; align-items: center; gap: 2px; flex: 1; }
.nav-button, .run-button, .icon-button, .small-icon-button { border: 0; background: transparent; cursor: pointer; }
.nav-button { height: 30px; padding: 0 10px; border-radius: 5px; color: var(--muted); }
.nav-button:hover, .nav-button.active { background: var(--panel-alt); color: var(--text); }
.step-number { color: var(--muted-2); margin-right: 5px; font-size: 11px; }
.nav-button.active .step-number { color: var(--blue); }
.run-button { height: 30px; margin-left: 5px; padding: 0 13px; border: 1px solid var(--line-strong); border-radius: 6px; background: var(--panel-soft); color: var(--text); font-weight: 650; }
.run-button:hover { background: #cfd3d6; }
.topbar-actions { display: flex; gap: 2px; }
.icon-button { width: 30px; height: 30px; border-radius: 5px; color: var(--muted); font-size: 15px; }
.icon-button:hover { background: var(--panel-soft); color: var(--text); }

.workbench { width: 100%; height: 100%; min-width: 0; min-height: 0; position: relative; display: grid; grid-template-columns: var(--tree-width) 10px minmax(0, 1fr); overflow: hidden; }
.panel-dock { position: fixed; z-index: 30; left: 8px; bottom: 8px; display: flex; align-items: center; gap: 2px; padding: 3px; border: 1px solid rgba(146,153,159,.78); border-radius: 8px; background: rgba(243,244,244,.82); box-shadow: 0 5px 18px rgba(31,35,40,.12); backdrop-filter: blur(10px); opacity: .38; transition: opacity .14s ease; }
.panel-dock:hover, .panel-dock:focus-within { opacity: 1; }
.dock-button { min-width: 26px; height: 26px; padding: 0 6px; border: 0; border-radius: 5px; background: transparent; color: var(--muted); cursor: pointer; }
.dock-button:hover { background: var(--panel-alt); color: var(--text); }
.dock-zoom { min-width: 43px; font-size: 10px; }
.dock-separator { width: 1px; height: 17px; margin: 0 2px; background: var(--line); }
.sr-status { position: fixed; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.panel { min-width: 0; min-height: 0; background: var(--panel); overflow: hidden; }
.splitter { position: relative; z-index: 12; width: 10px; cursor: col-resize; background: #e2e6e8; border-left: 1px solid var(--line-strong); border-right: 1px solid var(--line); }
.splitter::after { content: ''; position: absolute; left: 3px; top: 42%; width: 2px; height: 16%; min-height: 44px; border-radius: 2px; background: #7c858d; }
.splitter:hover, .splitter.dragging { background: #c4c8cb; border-color: #59636e; }

.tree-panel { display: flex; flex-direction: column; }
.panel-toolbar, .viewer-toolbar { display: flex; align-items: center; border-bottom: 1px solid var(--line); background: var(--panel-alt); }
.panel-toolbar { min-width: 0; align-content: center; justify-content: space-between; flex-wrap: wrap; padding: 5px 7px; }
.tree-brand { width: 100%; overflow: hidden; color: var(--text); font-size: 12px; font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }
.shell-label { color: var(--muted); font-size: 9px; }
.left-state { display: none; min-width: 0; min-height: 0; flex: 1; }
.left-state.active { display: flex; }
.left-state-start { flex-direction: column; }
.start-content { padding: 23px 14px 16px; }
.start-status, .section-caption { color: var(--muted); font-size: 10px; letter-spacing: .04em; text-transform: uppercase; }
.start-content h1 { margin: 8px 0 7px; font-size: 17px; font-weight: 650; }
.start-content p { margin: 0 0 16px; color: var(--muted); font-size: 11px; line-height: 1.5; }
.choose-folder-button { width: 100%; height: 32px; border: 1px solid var(--line-strong); border-radius: 6px; background: var(--panel-soft); color: var(--text); cursor: pointer; font-weight: 650; }
.choose-folder-button:hover { background: #cfd3d6; }
.folder-dropzone { min-height: 108px; margin-top: 10px; display: grid; place-items: center; align-content: center; gap: 5px; padding: 12px; border: 1px dashed #aeb4b9; border-radius: 7px; color: var(--muted); text-align: center; transition: .14s ease; }
.folder-dropzone strong { color: var(--text); font-size: 11px; }
.folder-dropzone span:last-child { font-size: 10px; }
.folder-dropzone.dragging { border-color: var(--text); background: var(--panel-alt); transform: scale(.99); }
.drop-symbol { width: 26px; height: 26px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: var(--panel); font-size: 16px; }
.recent-section { margin-top: auto; padding: 13px 14px 56px; border-top: 1px solid var(--line); }
.recent-empty { margin-top: 9px; color: var(--muted-2); font-size: 11px; }
.left-state-scanning { flex-direction: column; padding: 18px 14px 56px; }
.scan-heading { display: flex; align-items: center; gap: 9px; }
.scan-heading div { display: grid; gap: 2px; }
.scan-heading span { color: var(--muted); font-size: 10px; }
.scanning-dot { animation: pulse 1.1s infinite alternate; }
@keyframes pulse { to { opacity: .28; } }
.scan-progress { margin-top: 24px; }
.scan-progress-head { display: flex; justify-content: space-between; color: var(--muted); font-size: 10px; }
.scan-progress-head strong { color: var(--text); }
.scan-track { height: 5px; margin-top: 7px; overflow: hidden; border-radius: 4px; background: var(--panel-alt); }
.scan-fill { width: 0; height: 100%; background: #8b9298; transition: width .25s ease; }
.scan-counters { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin-top: 18px; }
.scan-counters div { display: grid; gap: 4px; padding: 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); }
.scan-counters span, .scan-current span { color: var(--muted); font-size: 9px; text-transform: uppercase; }
.scan-counters strong { font-size: 16px; }
.scan-current { display: grid; gap: 5px; margin-top: 16px; }
.scan-current strong { overflow: hidden; color: var(--muted); font-size: 10px; font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }
.quiet-button { margin-top: auto; height: 30px; border: 1px solid var(--line); border-radius: 6px; background: transparent; color: var(--muted); cursor: pointer; }
.quiet-button:hover { background: var(--panel-alt); color: var(--text); }
.left-state-ready { display: none; flex-direction: column; }
.left-state-ready.active { display: flex; }
.ready-tabs { height: 34px; flex: 0 0 34px; display: flex; align-items: center; justify-content: space-between; padding: 0 7px; border-bottom: 1px solid var(--line); background: var(--panel-alt); }
.left-state-ready .tree-search { flex: 0 0 27px; }
.left-state-ready .tree { flex: 1; min-height: 0; }
.ready-statistics { min-height: 54px; flex: 0 0 auto; display: block; padding: 6px 10px 7px; border-top: 1px solid var(--line); color: var(--muted); font-size: 9px; }
.ready-statistics[hidden] { display: none !important; }
.ready-statistics strong { color: var(--text); font-size: 10px; }
.view-tabs { width: 100%; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 3px; }
.view-tab { width: 100%; border: 0; background: transparent; color: var(--muted); height: 27px; padding: 0 6px; border-radius: 5px; cursor: pointer; font-size: 11px; }
.view-tab:hover { color: var(--text); }
.view-tab.active { background: #353b43; color: white; }
.small-icon-button { width: 26px; height: 26px; border-radius: 5px; color: var(--muted); font-size: 16px; }
.small-icon-button:hover { background: var(--panel-soft); color: var(--text); }

.tree-search { margin: 6px 8px 5px; display: flex; align-items: center; gap: 6px; height: 27px; padding: 0 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--muted); }
.global-search { flex: 0 0 27px; margin-bottom: 5px; }
.tree-search:focus-within { border-color: var(--blue-strong); box-shadow: 0 0 0 1px rgba(53,132,239,.22); }
.tree-search input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text); font-size: 12px; }
.tree-search input::placeholder { color: #6f7781; }
.object-summary { display: flex; align-items: center; gap: 7px; padding: 0 10px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.object-summary strong { color: var(--text); font-size: 12px; }
.object-summary span:last-child { margin-left: auto; }
.object-dot, .status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); box-shadow: none; }

.tree { overflow: auto; padding: 0 0 10px; scrollbar-width: thin; scrollbar-color: #c4c8cb transparent; }
.tree-row { width: 100%; height: 26px; display: flex; align-items: center; gap: 6px; padding: 0 8px; border: 0; border-radius: 0; background: transparent; color: var(--text); text-align: left; white-space: nowrap; cursor: default; }
button.tree-row { cursor: pointer; }
.tree-row:hover { background: var(--panel-alt); }
.tree-row.active { background: var(--panel-alt); box-shadow: inset 2px 0 var(--muted); color: var(--text); }
.tree-row.search-match { background: var(--accent-soft); color: var(--accent-text); }
.tree-row.level-1 { padding-left: 22px; }
.tree-row.level-2 { padding-left: 38px; }
.tree-row.level-3 { padding-left: 54px; }
.chevron { width: 11px; color: var(--muted); font-size: 16px; text-align: center; }
.file-icon { width: 16px; height: 16px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 3px; font-size: 9px; font-weight: 800; color: white; }
.folder-icon { position: relative; width: 16px; height: 11px; margin-top: 2px; background: #8b9298; border-radius: 2px; }
.folder-icon::before { content: ""; position: absolute; left: 1px; top: -3px; width: 7px; height: 4px; border-radius: 2px 2px 0 0; background: #8b9298; }
.pdf-icon, .dwg-icon, .xlsx-icon { color: var(--text); background: transparent; border: 1px solid var(--muted); }
.tree-label { overflow: hidden; text-overflow: ellipsis; }
.panel-footer { display: flex; align-items: center; gap: 10px; padding: 0 9px; border-top: 1px solid var(--line); color: var(--muted-2); font-size: 10px; }

.task-panel { display: grid; grid-template-rows: 60px minmax(0,1fr) 52px; background: var(--bg); }
.panel-heading { display: flex; align-items: center; justify-content: space-between; padding: 0 14px; border-bottom: 1px solid var(--line); }
.panel-heading h1 { margin: 3px 0 0; font-size: 16px; font-weight: 630; }
.eyebrow { color: var(--muted-2); font-size: 9px; letter-spacing: .13em; }
.task-content { overflow: auto; padding: 12px 14px; }
.selection-line { display: grid; grid-template-columns: 72px minmax(0,1fr); align-items: center; min-height: 38px; border-bottom: 1px solid rgba(255,255,255,.055); }
.selection-label { color: var(--muted); font-size: 12px; }
.selection-value { display: flex; justify-content: space-between; align-items: center; min-width: 0; border: 0; background: transparent; color: var(--text); cursor: pointer; text-align: left; }
.selection-value.empty { color: var(--muted); }
.selection-value:hover { color: white; }
.task-card { display: grid; grid-template-columns: 32px 1fr; gap: 10px; margin-top: 16px; padding: 12px; border: 1px solid var(--line); border-radius: 7px; background: var(--panel); }
.task-card-icon { width: 32px; height: 32px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 7px; background: var(--panel-alt); color: var(--text); font-size: 16px; }
.task-card strong { font-size: 12px; }
.task-card p { margin: 5px 0 0; color: var(--muted); font-size: 11px; line-height: 1.45; }
.prompt-block { margin-top: 18px; }
.prompt-block label { display: block; margin-bottom: 6px; color: var(--muted); font-size: 11px; }
.prompt-block textarea { width: 100%; min-height: 86px; padding: 9px; resize: vertical; border: 1px solid var(--line); border-radius: 6px; outline: 0; background: var(--bg); color: var(--text); font-size: 12px; line-height: 1.4; }
.prompt-block textarea:focus { border-color: var(--muted); box-shadow: 0 0 0 3px var(--panel-alt); }
.prompt-block textarea::placeholder { color: #616973; }
.prompt-actions { display: flex; justify-content: space-between; margin-top: 5px; color: var(--muted-2); font-size: 10px; }
.prompt-actions button { border: 0; background: transparent; color: var(--muted); cursor: pointer; padding: 0; font-size: 10px; }
.prompt-actions button:hover { color: var(--text); }
.task-footer { display: flex; align-items: center; justify-content: flex-end; gap: 7px; padding: 0 12px; border-top: 1px solid var(--line); background: var(--panel-alt); }
.secondary-button, .primary-button { height: 30px; padding: 0 11px; border-radius: 5px; cursor: pointer; font-size: 11px; }
.secondary-button { border: 1px solid var(--line-strong); background: transparent; color: var(--muted); }
.secondary-button:hover { color: var(--text); background: var(--panel-soft); }
.primary-button { border: 1px solid var(--line-strong); background: var(--panel-soft); color: var(--text); font-weight: 650; }
.primary-button:hover { background: #cfd3d6; }

.viewer-panel { position: relative; display: block; background: var(--bg); }
.viewer-toolbar { display: none; }
.viewer-toolbar { justify-content: space-between; min-width: 0; padding: 0 7px 0 10px; }
.file-breadcrumb { min-width: 0; display: flex; align-items: center; gap: 8px; }
.viewer-file-icon { width: 22px; height: 25px; display: grid; place-items: center; border: 1px solid var(--muted); border-radius: 3px; background: transparent; color: var(--text); font-size: 10px; font-weight: 800; }
.file-breadcrumb div { min-width: 0; display: grid; gap: 2px; }
.file-breadcrumb strong, .file-breadcrumb span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-breadcrumb strong { font-size: 12px; font-weight: 600; }
.file-breadcrumb div span { color: var(--muted); font-size: 9px; }
.viewer-actions { display: flex; align-items: center; flex: 0 0 auto; gap: 2px; }
.viewer-actions button { height: 28px; min-width: 28px; padding: 0 7px; border: 0; border-radius: 5px; background: transparent; color: var(--muted); cursor: pointer; font-size: 11px; }
.viewer-actions button:hover { background: var(--panel-soft); color: var(--text); }
.viewer-actions .zoom-value { min-width: 44px; color: var(--text); }
.toolbar-divider { width: 1px; height: 18px; margin: 0 3px; background: var(--line); }
.viewer-canvas { width: 100%; height: 100%; min-width: 0; min-height: 0; position: relative; overflow: auto; padding: 0; background-color: var(--bg); background-image: radial-gradient(#d5d8d8 0.7px, transparent 0.7px); background-size: 16px 16px; cursor: grab; touch-action: none; user-select: none; scrollbar-width: thin; scrollbar-color: rgba(125,132,138,.22) transparent; }
.viewer-canvas:active { cursor: grabbing; }
.viewer-canvas::-webkit-scrollbar { width: 8px; height: 8px; }
.viewer-canvas::-webkit-scrollbar-track { background: transparent; }
.viewer-canvas::-webkit-scrollbar-thumb { min-width: 30px; min-height: 30px; border: 2px solid transparent; border-radius: 8px; background: transparent; background-clip: padding-box; }
.viewer-canvas:hover::-webkit-scrollbar-thumb,
.viewer-canvas.scrollbars-active::-webkit-scrollbar-thumb { background: rgba(105,112,118,.52); background-clip: padding-box; }
.viewer-canvas::-webkit-scrollbar-thumb:hover,
.viewer-canvas::-webkit-scrollbar-thumb:active { background: rgba(79,86,92,.78); background-clip: padding-box; }
.viewer-canvas::-webkit-scrollbar-corner { background: transparent; }
.html-result-frame { position: absolute; inset: 0; z-index: 2; width: 100%; height: 100%; border: 0; background: #fff; }
.viewer-canvas.viewer-html { overflow: hidden; background: #fff; background-image: none; cursor: default; touch-action: auto; user-select: auto; }
.viewer-canvas.viewer-html:active { cursor: default; }
.viewer-canvas.viewer-html .pan-surface { display: none; }
.pan-surface { position: relative; min-width: 100%; min-height: 100%; }
.document-sheet { width: 720px; height: 510px; position: absolute; left: 50%; top: 50%; overflow: hidden; background: #fff; color: #27313b; border: 1px solid #92999f; box-shadow: 0 12px 28px rgba(31,35,40,.12); transform: translate(-50%, -50%) scale(.76); transform-origin: center; will-change: transform; }
.viewer-empty .document-sheet { display: none; }
.document-sheet.real-document-sheet { width: 960px; height: 680px; }
.viewer-canvas.viewer-spreadsheet { overflow: hidden; padding: 0; background: #fff; background-image: none; cursor: default; touch-action: auto; user-select: auto; }
.viewer-canvas.pdf-reading { cursor: default; touch-action: auto; user-select: text; }
.viewer-canvas.pdf-reading:active { cursor: default; }
.viewer-canvas.viewer-spreadsheet .pan-surface { width: 100% !important; height: 100% !important; min-width: 0; min-height: 0; }
.viewer-canvas.viewer-spreadsheet .document-sheet.real-document-sheet { inset: 0; left: 0; top: 0; width: 100% !important; height: 100% !important; border: 0; box-shadow: none; transform: none !important; }
.viewer-maximized .document-sheet.real-document-sheet,
.app-shell:fullscreen .document-sheet.real-document-sheet { width: calc(100vw - 28px); height: calc(100vh - 28px); max-width: none; max-height: none; }
.document-sheet.real-document-sheet.pdf-document-sheet { min-width: 320px; min-height: 220px; background: #fbfbfa; border-color: #d5d8d8; box-shadow: 0 10px 24px rgba(31,35,40,.07); }
.real-document { width: 100%; height: 100%; display: flex; flex-direction: column; background: #fff; }
.real-document.pdf-document { background: #fbfbfa; }
.real-document-tabs { display: flex; min-height: 30px; max-width: 100%; gap: 3px; overflow: auto; padding: 4px 6px; border-bottom: 1px solid #d5d8d8; background: #f3f4f4; }
.real-document-tabs button { flex: 0 0 auto; max-width: 180px; overflow: hidden; padding: 3px 7px; border: 1px solid #d5d8d8; border-radius: 4px; background: #fbfbfa; color: #59636e; font: 500 10px var(--font-technical); text-overflow: ellipsis; white-space: nowrap; cursor: pointer; }
.real-document-tabs button.active { border-color: var(--accent-border); background: var(--accent-soft); color: var(--accent-text); }
.real-document-viewport { position: relative; flex: 1; min-height: 0; display: grid; place-items: center; overflow: hidden; background: #fbfbfa; }
.real-document-frame { width: 100%; height: 100%; border: 0; background: #fff; }
.real-document-image { display: block; width: 100%; height: 100%; object-fit: contain; background: #fff; cursor: grab; user-select: none; -webkit-user-drag: none; }
.real-document-image:active { cursor: grabbing; }
.pdf-page-layer { position: relative; flex: 0 0 auto; background: #fff; }
.native-pdf-page { display: block; max-width: 100%; max-height: 100%; background: #fff; }
.pdf-text-layer { position: absolute; inset: 0; overflow: hidden; line-height: 1; text-size-adjust: none; transform-origin: 0 0; }
.pdf-text-layer span, .pdf-text-layer br { position: absolute; color: transparent; white-space: pre; cursor: text; transform-origin: 0 0; }
.pdf-text-layer ::selection { background: rgba(9, 105, 218, .28); }
.pdf-render-status { display: grid; place-items: center; width: 100%; height: 100%; color: #59636e; font: 12px var(--font-interface); }
.real-document-message { display: grid; align-content: center; gap: 12px; width: 100%; height: 100%; padding: 48px; background: #fff; color: #57606a; font: 13px var(--font-interface); }
.real-document-message strong { color: #24292f; font-size: 16px; }
.real-document-message code { overflow-wrap: anywhere; color: #6e7781; font: 11px var(--font-technical); }
.viewer-context-menu { position:fixed; z-index:1100; width:224px; padding:4px; border:1px solid var(--button-border); border-radius:8px; background:rgba(255,255,255,.98); box-shadow:0 10px 28px rgba(31,35,40,.20); backdrop-filter:blur(10px); }
.viewer-context-menu[hidden] { display:none; }
.viewer-context-menu button { display:block; width:100%; min-height:30px; padding:0 9px; border:0; border-radius:5px; background:transparent; color:var(--text); text-align:left; font:500 11px var(--font-ui); cursor:pointer; }
.viewer-context-menu button:hover { background:var(--accent-soft); color:var(--accent-text); }

/* Ctrl+P / browser Print prints the current document, not Launcher chrome. */
@media print {
  @page { margin: 8mm; }
  html, body { width: 100%; height: 100%; overflow: hidden !important; }
  body * { visibility: hidden !important; }
  #documentSheet, #documentSheet * { visibility: visible !important; }
  #documentSheet.real-document-sheet {
    position: fixed !important; inset: 0 !important; width: auto !important; height: auto !important;
    display: flex !important; align-items: center !important; justify-content: center !important;
    overflow: visible !important; border: 0 !important; box-shadow: none !important; transform: none !important;
  }
  #documentSheet .real-document-tabs { display: none !important; }
  #documentSheet .real-document, #documentSheet .real-document-viewport {
    display: flex !important; align-items: center !important; justify-content: center !important;
    width: 100% !important; height: 100% !important; overflow: visible !important; background: #fff !important;
  }
  #documentSheet .pdf-page-layer {
    flex: 0 0 auto !important;
    width: min(100%, calc(100vh * var(--pdf-page-aspect))) !important;
    height: auto !important; aspect-ratio: var(--pdf-page-aspect) !important;
  }
  #documentSheet .native-pdf-page { display: block !important; width: 100% !important; height: 100% !important; }
  #documentSheet .pdf-text-layer { width: 100% !important; height: 100% !important; }
  #documentSheet .real-document-image { display: block !important; max-width: 100% !important; max-height: 100% !important; width: auto !important; height: auto !important; object-fit: contain !important; }
  #documentSheet .real-document-frame { width: 100% !important; height: 100% !important; border: 0 !important; }
}
.viewer-context-menu .menu-separator { display:block; height:1px; margin:4px 3px; background:var(--line); }
.drawing-header { height: 52px; display: flex; align-items: center; justify-content: space-between; padding: 0 25px; border-bottom: 1px solid #b3bbc1; font-size: 9px; letter-spacing: .08em; }
.drawing-header strong { font-size: 12px; }
.drawing-grid { position: absolute; inset: 70px 34px 78px; border: 1px solid #70808b; background-image: linear-gradient(rgba(88,105,115,.13) 1px, transparent 1px), linear-gradient(90deg, rgba(88,105,115,.13) 1px, transparent 1px); background-size: 22px 22px; }
.plan-block { position: absolute; border: 3px double #3d5665; background: rgba(74,108,125,.035); }
.block-a { left: 7%; top: 12%; width: 58%; height: 70%; clip-path: polygon(0 0, 100% 0, 100% 62%, 72% 62%, 72% 100%, 0 100%); }
.block-b { right: 6%; top: 10%; width: 23%; height: 32%; }
.block-c { right: 8%; bottom: 10%; width: 18%; height: 30%; }
.axis { position: absolute; background: #a35252; opacity: .7; }
.axis-horizontal { left: 3%; right: 3%; top: 52%; height: 1px; }
.axis-vertical { top: 4%; bottom: 4%; left: 48%; width: 1px; }
.drawing-label { position: absolute; padding: 3px 5px; background: #f7f5ef; font-size: 8px; font-weight: 700; letter-spacing: .08em; }
.label-a { left: 23%; top: 45%; }
.label-b { right: 10%; top: 45%; }
.drawing-stamp { position: absolute; right: 22px; bottom: 17px; width: 295px; height: 50px; display: grid; grid-template-columns: 78px 52px 45px 1fr; border: 1px solid #445762; font-size: 7px; }
.drawing-stamp > div { display: grid; align-content: center; padding: 4px 6px; border-right: 1px solid #71808a; }
.drawing-stamp > div:last-child { border-right: 0; }
.drawing-stamp span { color: #65727b; }
.drawing-stamp strong { font-size: 9px; }

/* Demonstration previews: each document type is visually distinct without external files. */
.preview-sheet { width: 100%; height: 100%; overflow: hidden; background: #fff; color: #27313b; }
.preview-titlebar { height: 11%; display: flex; align-items: center; justify-content: space-between; padding: 0 4%; border-bottom: 1px solid #b6c0c5; font: 8px var(--font-technical); letter-spacing: .06em; }
.preview-titlebar strong { font: 700 13px var(--font-ui); letter-spacing: .01em; }
.preview-meta { color: #65727b; }
.preview-plan-grid { position: absolute; inset: 19% 7% 12%; border: 1px solid #71828d; background-image: linear-gradient(rgba(88,105,115,.13) 1px, transparent 1px), linear-gradient(90deg, rgba(88,105,115,.13) 1px, transparent 1px); background-size: 22px 22px; }
.preview-plan-block { position: absolute; border: 3px double #3d5665; background: rgba(74,108,125,.035); }
.preview-plan-a { left: 7%; top: 12%; width: 58%; height: 70%; clip-path: polygon(0 0, 100% 0, 100% 62%, 72% 62%, 72% 100%, 0 100%); }
.preview-plan-b { right: 6%; top: 10%; width: 23%; height: 32%; }
.preview-plan-c { right: 8%; bottom: 10%; width: 18%; height: 30%; }
.preview-axis { position: absolute; background: #a35252; opacity: .7; }
.preview-axis-h { left: 3%; right: 3%; top: 52%; height: 1px; }
.preview-axis-v { top: 4%; bottom: 4%; left: 48%; width: 1px; }
.preview-caption { position: absolute; padding: 3px 5px; background: #f7f5ef; font: 700 8px var(--font-ui); letter-spacing: .08em; }
.preview-caption-a { left: 23%; top: 45%; }
.preview-caption-b { right: 10%; top: 45%; }
.preview-stamp { position: absolute; right: 3%; bottom: 3%; width: 41%; height: 8%; display: grid; place-items: center; border: 1px solid #445762; background: rgba(255,255,255,.78); font: 7px var(--font-technical); }
.preview-elevation { position: absolute; inset: 23% 8% 16%; display: grid; grid-template-columns: repeat(9, 1fr); align-items: end; gap: 5px; padding: 0 6%; border-bottom: 3px solid #536873; background: linear-gradient(#f4f6f5 0 58%, #dfe6e7 58%); }
.preview-elevation::before { content: ''; position: absolute; left: 5%; right: 5%; top: 17%; height: 4px; border-top: 1px solid #788991; border-bottom: 1px solid #788991; }
.preview-bay { height: 75%; border: 2px solid #3d5968; border-top-width: 4px; background: repeating-linear-gradient(90deg, rgba(147,190,208,.34) 0 8px, rgba(250,252,252,.76) 8px 12px); }
.preview-bay:nth-child(2n) { height: 60%; }
.preview-bay:nth-child(3n) { height: 83%; }
.preview-section { position: absolute; inset: 20% 13% 13%; border-left: 3px solid #4a5e67; border-right: 3px solid #4a5e67; background: repeating-linear-gradient(0deg, transparent 0 18%, #91a1a8 18% calc(18% + 1px)); }
.preview-section::before { content: ''; position: absolute; inset: 8% 13% 0; border-left: 2px solid #a65454; border-right: 2px solid #a65454; background: linear-gradient(135deg, transparent 49%, rgba(100,119,128,.28) 50%, transparent 51%); }
.preview-section-level { position: absolute; left: -11%; color: #a35252; font: 8px var(--font-technical); }
.preview-section-level:nth-child(1) { top: 17%; }.preview-section-level:nth-child(2) { top: 42%; }.preview-section-level:nth-child(3) { top: 67%; }
.preview-table { position: absolute; inset: 17% 5% 8%; display: grid; grid-template-columns: 2.6fr 1fr 1fr 1.3fr; grid-template-rows: 28px repeat(8, 1fr); border-top: 1px solid #92a0a6; border-left: 1px solid #92a0a6; background: #fff; font: 8px var(--font-technical); }
.preview-table > span { display: flex; align-items: center; padding: 0 5px; border-right: 1px solid #c0c8cc; border-bottom: 1px solid #c0c8cc; }
.preview-table > span:nth-child(-n+4) { background: #dce9df; font-weight: 700; }
.preview-table > span:nth-child(4n+2), .preview-table > span:nth-child(4n+3) { justify-content: flex-end; }
.preview-doc { position: absolute; inset: 17% 13% 10%; padding: 4% 7%; background: #fff; box-shadow: 0 1px 5px rgba(31,35,40,.08); font: 9px/1.6 var(--font-ui); }
.preview-doc h2 { margin: 0 0 8%; text-align: center; font-size: 12px; text-transform: uppercase; }.preview-doc p { margin: 0 0 5%; }.preview-doc i { display: block; width: 72%; height: 1px; margin: 8% 0 0 auto; background: #536873; }
.preview-image { position: absolute; inset: 14% 7% 9%; overflow: hidden; background: linear-gradient(180deg, #c8e2ed 0 48%, #7fa98a 48% 58%, #d3c0a3 58%); }
.preview-image::before { content: ''; position: absolute; width: 27%; height: 52%; left: 17%; bottom: 15%; border: 4px solid rgba(245,249,247,.92); border-bottom: 0; background: repeating-linear-gradient(90deg, rgba(48,82,98,.78) 0 8%, rgba(138,192,211,.72) 8% 11%); transform: perspective(130px) rotateY(-9deg); }
.preview-image::after { content: ''; position: absolute; width: 25%; height: 10%; right: 12%; bottom: 13%; border-radius: 50%; background: rgba(59,103,63,.82); box-shadow: -60px -15px 0 rgba(73,120,71,.7), -115px 2px 0 rgba(73,120,71,.66); }
.preview-html { position: absolute; inset: 15% 7% 9%; display: grid; grid-template-columns: 30% 1fr; border: 1px solid #aab4b8; background: #fff; overflow: hidden; }
.preview-html-list { padding: 7px; background: #eef1f1; border-right: 1px solid #cfd5d6; }.preview-html-search { height: 16px; border: 1px solid #c9d0d2; background: #fff; }.preview-html-card { height: 33px; margin-top: 5px; border: 1px solid #b6c0c4; background: repeating-linear-gradient(0deg,#fff 0 7px,#e6eaeb 8px); }.preview-html-main { position: relative; background: #e5eaeb; }.preview-html-main::before { content: ''; position: absolute; inset: 10% 10%; border: 1px solid #71828d; background: repeating-linear-gradient(0deg,#fdfdfb 0 13px,#d7dedf 14px), repeating-linear-gradient(90deg,transparent 0 18px,#d7dedf 19px); }

/* Presentation demo previews: these are intentionally browser-native mockups, not opened DWG/PDF files. */
.presentation-sheet { background: #f8faf9; }
.technical-drawing { position: absolute; inset: 13% 6% 10%; width: 88%; height: 77%; background: #fff; }
.technical-drawing .drawing-grid-lines { stroke: #d9e1e2; stroke-width: 1; }
.technical-drawing .drawing-main { stroke: #3d5964; stroke-width: 2; }
.technical-drawing .drawing-dimensions { stroke: #8a9ba2; stroke-width: 1; fill: #6f8188; font: 10px var(--font-mono); }
.technical-drawing .drawing-labels { fill: #4a6069; font: 10px var(--font-mono); letter-spacing: .03em; }
.presentation-table { position: absolute; inset: 15% 6% 11%; overflow: auto; border: 1px solid #b7c4c8; background: #fff; }
.presentation-table table { width: 100%; border-collapse: collapse; font: 9px/1.25 var(--font-ui); color: #32454b; }
.presentation-table th { position: sticky; top: 0; background: #e5efea; font-weight: 700; z-index: 1; }
.presentation-table th, .presentation-table td { padding: 6px 7px; border-right: 1px solid #d5dedf; border-bottom: 1px solid #d5dedf; text-align: left; white-space: nowrap; }
.presentation-table td:nth-child(3), .presentation-table td:nth-child(4) { text-align: right; }
.presentation-table tbody tr:nth-child(even) { background: #f7f9f8; }
.presentation-document { position: absolute; inset: 15% 12% 10%; overflow: auto; padding: 5% 7%; background: #fff; box-shadow: 0 1px 5px rgba(31,35,40,.08); color: #2f3c40; font: 10px/1.55 var(--font-ui); }
.presentation-document h2 { margin: 0 0 8%; text-align: center; color: #273d46; font-size: 13px; letter-spacing: .04em; }
.presentation-document p { margin: 0 0 5%; text-align: justify; }
.document-signatures { display: flex; justify-content: space-between; gap: 22px; margin-top: 9%; padding-top: 6%; border-top: 1px solid #b4c0c4; color: #526971; font-size: 9px; }
.presentation-photo { position: absolute; inset: 14% 7% 9%; margin: 0; overflow: hidden; background: #dbe6e6; }
.presentation-photo img { display: block; width: 100%; height: calc(100% - 28px); object-fit: cover; object-position: center; }
.presentation-photo.photo-crop-right img { object-position: 76% center; filter: saturate(.86) contrast(1.05); }
.presentation-photo figcaption { height: 28px; padding: 8px 10px; box-sizing: border-box; background: #fff; color: #52656b; font: 9px var(--font-ui); }

.statusbar { display: flex; align-items: center; justify-content: space-between; padding: 0 8px; border-top: 1px solid var(--line); background: var(--panel-alt); color: var(--muted); font-size: 10px; user-select: none; }
.status-main, .status-details { display: flex; align-items: center; gap: 8px; }
.status-details span + span { border-left: 1px solid var(--line); padding-left: 8px; }

.app-shell.tree-collapsed .workbench,
.viewer-maximized .workbench,
.app-shell:fullscreen .workbench { grid-template-columns: 0 0 minmax(0, 1fr); }
.tree-collapsed #treePanel,
.tree-collapsed #treeSplitter,
.viewer-maximized #treePanel,
.viewer-maximized #treeSplitter,
.app-shell:fullscreen #treePanel,
.app-shell:fullscreen #treeSplitter { visibility: hidden; }
.app-shell:fullscreen { background: var(--bg); }

@media (max-width: 980px) {
  :root { --tree-width: 240px; --task-width: 290px; }
  .brand { min-width: auto; }
  .brand-name, .version { display: none; }
  .nav-button { padding: 0 7px; }
  .viewer-actions button:nth-of-type(5) { display: none; }
}

@media (max-width: 760px) {
  .workbench { grid-template-columns: minmax(190px, 38vw) 10px minmax(0, 1fr); }
  .tree-collapsed .workbench,
  .viewer-maximized .workbench,
  .app-shell:fullscreen .workbench { grid-template-columns: 0 0 minmax(0, 1fr); }
}

/* Accepted typography and compact left-panel layout. */
:root {
  --font-ui: "Manrope", "Segoe UI Variable", "Segoe UI", sans-serif;
  --font-technical: "JetBrains Mono", "Cascadia Mono", "Consolas", monospace;
  --viewer-left-inset: calc(var(--tree-width) + 10px);
  --viewer-right-inset: 0px;
  font-family: var(--font-ui);
}

body, button, input, textarea { font-family: var(--font-ui); }

.panel-dock {
  left: calc(var(--viewer-left-inset) + (100vw - var(--viewer-left-inset) - var(--viewer-right-inset)) / 2);
  bottom: 10px;
  border-radius: 9px;
  /* These commands must always be reachable.  Hiding the dock behind a
     timer made the viewer feel like it had lost its controls. */
  z-index: 1000;
  opacity: .98;
  pointer-events: auto;
  transform: translateX(-50%);
  transition: opacity .16s ease, transform .16s ease;
}
.file-open .panel-dock {
  opacity: .96;
  pointer-events: auto;
  transform: translateX(-50%);
}
.tree-collapsed .panel-dock,
.viewer-maximized .panel-dock,
.app-shell:fullscreen .panel-dock {
  --viewer-left-inset: 0px;
  left: calc(var(--viewer-left-inset) + (100vw - var(--viewer-left-inset) - var(--viewer-right-inset)) / 2);
}

.navigation-toggle {
  position: fixed;
  z-index: 31;
  left: calc(var(--tree-width) - 12px);
  top: 50%;
  width: 24px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: rgba(243,244,244,.9);
  color: var(--muted);
  box-shadow: 0 3px 10px rgba(31,35,40,.1);
  cursor: pointer;
  transform: translateY(-50%);
}
.navigation-toggle:hover { background: var(--panel-alt); color: var(--text); }
.tree-collapsed .navigation-toggle,
.viewer-maximized .navigation-toggle,
.app-shell:fullscreen .navigation-toggle { left: 6px; }

.panel-toolbar {
  height: 30px;
  flex: 0 0 30px;
  flex-wrap: nowrap;
  justify-content: space-between;
  padding: 0 5px 0 9px;
}
.tree-brand {
  width: auto;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .075em;
}
.tree-panel { position: relative; }

.start-actions {
  height: 38px;
  flex: 0 0 38px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 9px;
  border-bottom: 1px solid var(--line);
}
.start-actions > span { color: var(--muted); font-size: 9px; }
.choose-folder-button {
  width: auto;
  height: 27px;
  padding: 0 9px;
  font-size: 10px;
  font-weight: 500;
}
.recent-section {
  position: relative;
  min-height: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  margin-top: 0;
  padding: 10px 0 46px;
  overflow: hidden;
  border-top: 0;
}
.recent-section .section-caption { padding: 0 10px 7px; }
.recent-list { min-height: 0; overflow-y: auto; scrollbar-width: thin; scrollbar-color: #c4c8cb transparent; }
.recent-row {
  min-height: 48px;
  display: grid;
  grid-template-columns: minmax(0,1fr) 28px;
  align-items: center;
  border-top: 1px solid rgba(213,216,216,.72);
}
.recent-row:last-child { border-bottom: 1px solid rgba(213,216,216,.72); }
.recent-row:hover { background: var(--panel-alt); }
.recent-main {
  min-width: 0;
  height: 47px;
  display: grid;
  align-content: center;
  gap: 3px;
  padding: 0 4px 0 10px;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}
.recent-main strong { overflow: hidden; font-size: 11px; font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.recent-main span {
  overflow: hidden;
  color: var(--muted);
  font-family: var(--font-technical);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: -.025em;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pin-button { width: 26px; height: 26px; padding: 0; border: 0; border-radius: 5px; background: transparent; color: #8b9298; cursor: pointer; }
.pin-button:hover { background: var(--panel-soft); color: var(--text); }
.pin-button.active { color: var(--text); }
.recent-menu-button {
  width: 26px;
  height: 26px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  opacity: 0;
  transition: opacity .12s ease, background .12s ease, border-color .12s ease;
}
.recent-row:hover .recent-menu-button,
.recent-row:focus-within .recent-menu-button,
.recent-menu-button[aria-expanded="true"] { opacity: 1; }
.recent-menu-button:hover { border-color: var(--button-border); background: var(--button-bg); color: var(--text); }
.recent-context-menu {
  position: absolute;
  z-index: 40;
  right: 7px;
  width: 210px;
  padding: 4px;
  border: 1px solid var(--button-border);
  border-radius: 8px;
  background: rgba(251,251,250,.98);
  box-shadow: 0 10px 28px rgba(31,35,40,.16);
}
.recent-context-menu[hidden] { display: none; }
.recent-context-menu button { width: 100%; height: 29px; padding: 0 8px; border: 0; border-radius: 5px; background: transparent; color: var(--text); font-size: 10px; text-align: left; cursor: pointer; }
.recent-context-menu button:hover { background: var(--button-hover); }
.recent-context-menu > span { display: block; height: 1px; margin: 3px 4px; background: var(--line); }
.drop-overlay {
  position: absolute;
  z-index: 20;
  inset: 30px 0 0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  background: rgba(243,244,244,.96);
  opacity: 0;
  pointer-events: none;
  transition: opacity .12s ease;
}
.drop-overlay span { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; font-size: 18px; }
.drop-overlay strong { font-size: 12px; font-weight: 500; }
.tree-panel.dragging .drop-overlay { opacity: 1; }

.tree { font-family: var(--font-technical); font-size: 10.5px; font-weight: 450; letter-spacing: -.025em; }
.scan-counters strong { font-family: var(--font-technical); font-weight: 500; }
.scan-current strong { font-family: var(--font-technical); font-size: 9.5px; font-weight: 400; }

.ready-statistics { min-height: 0; display: block; padding: 0; background: var(--panel); }
.statistics-summary {
  width: 100%;
  height: 27px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 9px;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 9px;
}
.statistics-summary:hover { background: var(--panel-alt); }
.statistics-summary strong, .format-grid strong { color: var(--text); font-family: var(--font-technical); font-weight: 500; }
.statistics-chevron { transition: transform .14s ease; }
.ready-statistics:not(.expanded) .statistics-chevron { transform: rotate(180deg); }
.format-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 12px;
  max-height: 104px;
  overflow: hidden;
  padding: 5px 9px 9px;
  color: var(--muted);
  font-size: 8.5px;
  transition: max-height .16s ease, padding .16s ease;
}
.format-grid span { display: flex; justify-content: space-between; }
.ready-statistics:not(.expanded) .format-grid { max-height: 0; padding-top: 0; padding-bottom: 0; }

/* Unified button language. */
:root {
  --button-bg: #e4e6e7;
  --button-hover: #d7dadd;
  --button-pressed: #c8cdd0;
  --button-border: #b8bdc1;
  --button-border-hover: #92999f;
  --accent: #0969da;
  --accent-soft: #dceafa;
  --accent-border: #6ea8e5;
  --accent-text: #084f9e;
}

.choose-folder-button,
.view-tab,
.small-icon-button,
.dock-button,
.quiet-button,
.pin-button,
.navigation-toggle {
  border: 1px solid var(--button-border);
  border-radius: 6px;
  background: var(--button-bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-weight: 500;
  box-shadow: none;
  transition: background .12s ease, border-color .12s ease, color .12s ease, transform .08s ease;
}
.choose-folder-button:hover,
.view-tab:hover,
.small-icon-button:hover,
.dock-button:hover,
.quiet-button:hover,
.pin-button:hover,
.navigation-toggle:hover {
  border-color: var(--button-border-hover);
  background: var(--button-hover);
  color: var(--text);
}
.choose-folder-button:active,
.view-tab:active,
.small-icon-button:active,
.dock-button:active,
.quiet-button:active,
.pin-button:active,
.navigation-toggle:active {
  background: var(--button-pressed);
  transform: translateY(1px);
}
.view-tab.active,
.view-tab[aria-selected="true"] {
  border-color: var(--accent-border);
  background: var(--accent-soft);
  color: var(--accent-text);
}
.view-tabs { gap: 3px; }
.view-tab { height: 26px; padding: 0 9px; }
.choose-folder-button { border-color: var(--accent-border); }
.choose-folder-button::first-letter { color: var(--accent); }
.tree-brand { font-size: 12px; font-weight: 600; letter-spacing: 0; text-transform: none; }
.tree-brand > span { color: var(--accent); }
.tree-brand { display: flex; align-items: baseline; gap: 3px; }
.tree-brand > span:first-child { color: var(--accent); font-size: 14px; font-weight: 800; line-height: 1; }
.tree-brand .brand-name-rest { color: var(--text); font-size: 11px; font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 3px; margin-right: 29px; }
.contextual-control { display: none; }
.left-mode-ready .contextual-control { display: inline-grid; place-items: center; }

.navigation-toggle {
  top: 2px;
  left: calc(var(--tree-width) - 31px);
  width: 26px;
  height: 26px;
  border-color: var(--button-border);
  transform: none;
}
.tree-collapsed .navigation-toggle,
.viewer-maximized .navigation-toggle { left: 4px; }
.app-shell:fullscreen .navigation-toggle { display: none; }
.app-shell:fullscreen .navigation-toggle { display: block; left: 4px; }
.app-shell:fullscreen.fullscreen-tree-visible .workbench { grid-template-columns: var(--tree-width) 10px minmax(0, 1fr); }
.app-shell:fullscreen.fullscreen-tree-visible #treePanel,
.app-shell:fullscreen.fullscreen-tree-visible #treeSplitter { visibility: visible; }
.app-shell:fullscreen.fullscreen-tree-visible .navigation-toggle { left: calc(var(--tree-width) - 31px); }

.structure-view { min-height: 0; flex: 1; flex-direction: column; overflow: hidden; }
.structure-view:not([hidden]) { display: flex; }
.structure-view[hidden] { display: none; }
.structure-view .structure-tree { min-height: 0; flex: 1; }
.structure-marker { width: 16px; color: var(--muted); text-align: center; }
.tree-count { margin-left: auto; padding-left: 7px; color: var(--muted); font-family: var(--font-technical); font-size: 9px; }
.tree-row.folder { cursor: pointer; }
.tree-row:focus-visible { position: relative; z-index: 1; outline: 2px solid var(--accent-border); outline-offset: -2px; }
.tree-row.active { background: var(--accent-soft); box-shadow: inset 2px 0 var(--accent); color: var(--accent-text); }
.tree-children[hidden] { display: none; }
.tree-context-menu {
  position: absolute;
  z-index: 60;
  width: 216px;
  padding: 4px;
  border: 1px solid var(--button-border);
  border-radius: 8px;
  background: rgba(251,251,250,.99);
  box-shadow: 0 10px 28px rgba(31,35,40,.18);
}
.tree-context-menu[hidden] { display: none; }
.tree-context-menu button { width: 100%; height: 29px; padding: 0 8px; border: 0; border-radius: 5px; background: transparent; color: var(--text); font-family: var(--font-ui); font-size: 10px; text-align: left; cursor: pointer; }
.tree-context-menu button:hover { background: var(--button-hover); }
.tree-context-menu .menu-separator { display: block; height: 1px; margin: 3px 4px; background: var(--line); }
.left-toast {
  position: absolute;
  z-index: 70;
  left: 8px;
  right: 8px;
  bottom: 8px;
  padding: 8px 9px;
  overflow: hidden;
  border: 1px solid var(--accent-border);
  border-radius: 7px;
  background: rgba(220,234,250,.97);
  color: var(--accent-text);
  font-family: var(--font-technical);
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
  box-shadow: 0 5px 18px rgba(31,35,40,.12);
}
.left-toast[hidden] { display: none; }

/* Второе состояние: поиск и запуск модулей. Наследует геометрию и кнопку UI. */
.module-view {
  position: relative;
  min-height: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--panel);
}
.module-view[hidden] { display: none; }
.module-view-head { height: 37px; flex: 0 0 37px; display: flex; align-items: center; gap: 7px; padding: 0 8px; border-bottom: 1px solid var(--line); background: var(--panel-alt); font: 600 12px var(--font-ui); }
.module-view-head .small-icon-button { flex: 0 0 auto; }
.module-search {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 27px;
  margin: 6px 8px 5px;
  padding: 0 8px;
  border: 1px solid var(--button-border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--muted);
}
.module-search:focus-within { border-color: var(--accent-border); box-shadow: 0 0 0 1px rgba(9, 105, 218, .16); }
.module-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 11px;
}
.module-search input::placeholder { color: var(--muted-2); }
.module-department { height: 27px; flex: 0 0 27px; margin: 0 8px 5px; padding: 0 7px; border: 1px solid var(--button-border); border-radius: 6px; background: var(--bg); color: var(--text); font: 500 10px var(--font-ui); }
.module-filters, .format-filter-row {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 8px 5px;
  overflow-x: auto;
  scrollbar-width: none;
}
.module-filters::-webkit-scrollbar, .format-filter-row::-webkit-scrollbar { display: none; }
.module-filter, .format-chip {
  flex: 0 0 auto;
  height: 24px;
  padding: 0 7px;
  border: 1px solid var(--button-border);
  border-radius: 6px;
  background: var(--button-bg);
  color: var(--text);
  font: 500 9px var(--font-ui);
  cursor: pointer;
}
.module-filter:hover, .format-chip:hover { background: var(--button-hover); border-color: var(--button-border-hover); }
.module-filter.active { border-color: var(--accent-border); background: var(--accent-soft); color: var(--accent-text); }
.format-filter-row { padding-bottom: 7px; border-bottom: 1px solid var(--line); }
.format-filter-row > span {
  flex: 0 0 auto;
  color: var(--muted);
  font: 8.5px var(--font-technical);
  text-transform: uppercase;
}
.format-chip { height: 21px; padding: 0 5px; font-family: var(--font-technical); font-size: 8.5px; }
.format-chip.active { background: var(--panel-soft); color: var(--text); }
.format-chip:not(.active) { opacity: .42; }
.format-chip.extra { display: none; }
.format-filter-row.expanded { flex-wrap: wrap; overflow: visible; }
.format-filter-row.expanded .format-chip.extra { display: block; }
.module-summary {
  padding: 7px 9px 5px;
  color: var(--muted);
  font: 9px var(--font-technical);
}
.module-list {
  flex: 1;
  min-height: 0;
  overflow: auto;
  margin-top: 8px;
  padding: 8px 7px;
  border-top: 1px solid var(--line);
  scrollbar-width: thin;
  scrollbar-color: #c4c8cb transparent;
}
.module-card {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 26px;
  gap: 8px;
  padding: 5px 6px;
  margin-bottom: 3px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}
.module-card:hover { border-color: var(--button-border); background: var(--panel-alt); }
.module-card.selected { border-color: var(--accent-border); background: var(--accent-soft); }
.module-card.created { border-color: var(--accent-border); background: var(--accent-soft); cursor: pointer; }
.module-card.created:hover { background: #dceeff; }
.module-card.created.outdated { border-color: var(--button-border); background: var(--panel-alt); }
.module-card.created .module-card-meta::after { content: "актуально"; margin-left: 5px; color: var(--accent-text); }
.module-card.created.outdated .module-card-meta::after { content: "источник изменён"; color: #9a6700; }
.module-card.disabled { opacity: .53; }
.module-card-icon { display: none; }
.module-card-main { min-width: 0; display: grid; gap: 2px; }
.module-card-meta { display: flex; align-items: center; gap: 5px; color: var(--muted); font: 8.5px var(--font-technical); }
.module-card-main strong { overflow: hidden; font-size: 10.5px; font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.module-card-main p { display: none; }
.module-play-button { width: 26px; height: 26px; align-self: center; padding: 0; border: 1px solid var(--button-border); border-radius: 6px; background: var(--button-bg); color: var(--muted); cursor: pointer; font: 500 18px/1 var(--font-ui); }
.module-play-button:hover { border-color: var(--button-border-hover); background: var(--button-hover); color: var(--text); }
.module-card-tags { display: none; }
.module-launch-card, .module-telemetry {
  flex: 0 0 auto;
  margin: 0 7px 7px;
  padding: 8px;
  border: 1px solid var(--button-border);
  border-radius: 7px;
  background: var(--panel-alt);
}
.module-output { flex: 0 0 auto; margin: 0 7px 7px; padding: 3px; border: 0; border-top: 1px solid var(--line); border-radius: 0; background: transparent; }
.module-output[hidden] { display: none; }
.module-output-file { width: 100%; display: flex; align-items: center; gap: 7px; margin-top: 0; padding: 5px 6px; border: 1px solid var(--button-border); border-radius: 6px; background: var(--button-bg); color: var(--text); text-align: left; cursor: pointer; }
.module-output-file:hover { border-color: var(--button-border-hover); background: var(--button-hover); }
.module-output-file.created { border-color: var(--accent-border); background: var(--accent-soft); color: var(--accent-text); }
.module-history-back { width: 100%; height: 26px; margin-bottom: 5px; border: 1px solid var(--button-border); border-radius: 6px; background: var(--button-bg); color: var(--text); cursor: pointer; font: 500 10px var(--font-ui); text-align: left; padding: 0 8px; }
.module-history-back:hover { background: var(--button-hover); }
.module-context-menu { position: absolute; z-index: 80; width: 210px; padding: 4px; border: 1px solid var(--button-border); border-radius: 7px; background: var(--bg); box-shadow: 0 8px 20px rgba(31,35,40,.14); }
.module-context-menu[hidden] { display: none; }
.module-context-menu button { width: 100%; min-height: 26px; padding: 0 8px; border: 0; border-radius: 4px; background: transparent; color: var(--text); text-align: left; cursor: pointer; font: 10px var(--font-ui); }
.module-context-menu button:hover { background: var(--button-hover); }
.module-context-menu span { display: block; height: 1px; margin: 4px 2px; background: var(--line); }
.recent-search { flex: 0 0 27px; display: flex; align-items: center; gap: 6px; height: 27px; margin: 8px; padding: 0 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--muted); }
.recent-search:focus-within { border-color: var(--accent-border); box-shadow: 0 0 0 1px rgba(9,105,218,.16); }
.recent-search input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text); font: 11px var(--font-ui); }
.recent-row[hidden] { display: none !important; }
/* Start screen shows the active object directly; the former recent-objects list is not displayed. */
.left-state-start .recent-section { flex: 0 0 auto; min-height: 48px; padding: 0 8px; overflow: visible; }
.left-state-start .recent-section .section-caption,
.left-state-start .recent-row:not(:first-child),
.left-state-start .recent-menu-button,
.left-state-start .recent-context-menu { display: none !important; }
.left-state-start .recent-list { overflow: visible; }
.left-state-start .recent-row:first-child { min-height: 47px; grid-template-columns: minmax(0, 1fr); border: 1px solid rgba(213,216,216,.72); border-radius: 6px; }
.left-state-start .recent-row:first-child .recent-main { height: 45px; padding-left: 10px; }

/* Tree format palette: compact by default, expands vertically without its own scrollbar. */
.ready-statistics { padding: 5px 8px 7px; border-top: 1px solid var(--line); }
.format-summary { color: var(--muted); font: 9px var(--font-ui); line-height: 16px; }
.format-summary strong { color: var(--text); font: 500 9px var(--font-technical); }
.format-quick, .format-palette { display: flex; flex-wrap: wrap; gap: 4px; }
.format-quick { margin-top: 3px; }
.format-quick button, .format-palette button, .format-active-state button {
  height: 20px;
  padding: 0 5px;
  border: 1px solid var(--button-border);
  border-radius: 5px;
  background: var(--button-bg);
  color: var(--muted);
  cursor: pointer;
  font: 8.5px var(--font-technical);
}
.format-quick button:hover, .format-palette button:hover, .format-active-state button:hover { border-color: var(--button-border-hover); background: var(--button-hover); color: var(--text); }
.format-quick button.active, .format-palette button.active { border-color: var(--accent-border); background: var(--accent-soft); color: var(--accent-text); }
.format-quick button.empty, .format-palette button.empty { opacity: .32; cursor: not-allowed; }
.format-quick button:disabled, .format-palette button:disabled { pointer-events: auto; }
.format-quick strong, .format-palette strong { color: inherit; font-weight: 500; }
.format-expand { min-width: 31px; }
.format-palette { margin-top: 4px; padding-top: 4px; border-top: 1px solid var(--line); }
.format-palette[hidden] { display: none; }
.format-palette .format-collapse { flex-basis: 100%; margin-top: 1px; color: var(--muted); }
.format-active-state { display: flex; align-items: center; justify-content: space-between; gap: 6px; margin-top: 5px; color: var(--accent-text); font: 8.5px var(--font-technical); }
.format-active-state[hidden] { display: none; }
.format-active-state button { height: 19px; color: var(--accent-text); }

/* Phone portrait: the viewer has the upper half of the screen; navigation remains reachable below it. */
@media (max-width: 640px) and (orientation: portrait) {
  html, body, .app-shell { height: 100svh; }
  .workbench { height: 100%; grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(220px, 46svh) 4px minmax(0, 1fr); }
  #viewerPanel { grid-column: 1; grid-row: 1; }
  #treeSplitter { grid-column: 1; grid-row: 2; width: 100%; height: 4px; cursor: row-resize; border: 0; border-top: 1px solid var(--line); }
  #treePanel { grid-column: 1; grid-row: 3; }
  .panel-dock { left: 50%; top: calc(46svh - 42px); bottom: auto; }
  .navigation-toggle { left: 5px; top: 5px; }
  .document-sheet { max-width: 92vw; max-height: 38svh; }
  .viewer-maximized .workbench, .app-shell:fullscreen .workbench { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); }
}

/* Phone landscape: keep the tree and the viewer side by side and give the viewer priority. */
@media (max-width: 900px) and (max-height: 640px) and (orientation: landscape) {
  html, body, .app-shell { height: 100svh; }
  .workbench { height: 100%; grid-template-columns: minmax(180px, 34vw) 10px minmax(0, 1fr); }
  .panel-dock { left: calc(34vw + (100vw - 34vw) / 2); bottom: 7px; }
  .document-sheet { max-width: 86vw; max-height: 82svh; }
}
.module-output-file strong { overflow: hidden; font: 500 9px var(--font-technical); text-overflow: ellipsis; white-space: nowrap; }
.module-launch-card[hidden], .module-telemetry[hidden] { display: none; }
.module-launch-head, .telemetry-head, .telemetry-counts, .telemetry-footer { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.module-kicker { display: block; color: var(--muted); font: 8px var(--font-technical); text-transform: uppercase; }
.module-launch-head strong { display: block; margin-top: 2px; font-size: 10.5px; }
.module-launch-card p { margin: 6px 0; color: var(--muted); font-size: 9.5px; line-height: 1.35; }
.module-inputs { margin-bottom: 7px; color: var(--muted); font: 8.5px var(--font-technical); }
.module-run-button {
  width: 100%; height: 27px; border: 1px solid var(--accent-border); border-radius: 6px;
  background: var(--accent-soft); color: var(--accent-text); font: 600 10px var(--font-ui); cursor: pointer;
}
.module-run-button:hover { background: #cfe2f8; }
.telemetry-head strong { overflow: hidden; font-size: 10.5px; text-overflow: ellipsis; white-space: nowrap; }
.telemetry-head span, .telemetry-counts, .telemetry-stage, .telemetry-current, .telemetry-footer { font-family: var(--font-technical); }
.telemetry-head span { color: var(--accent-text); font-size: 10px; }
.telemetry-track { height: 5px; margin: 7px 0 5px; overflow: hidden; border-radius: 3px; background: var(--button-bg); }
.telemetry-fill { width: 0; height: 100%; background: var(--accent); transition: width .22s ease; }
.telemetry-counts { color: var(--muted); font-size: 8.5px; }
.telemetry-stage { margin-top: 8px; color: var(--text); font-size: 9px; }
.telemetry-current { margin-top: 3px; overflow: hidden; color: var(--muted); font-size: 8.5px; text-overflow: ellipsis; white-space: nowrap; }
.telemetry-footer { margin-top: 7px; color: var(--muted); font-size: 8.5px; }
.telemetry-footer button { height: 23px; padding: 0 7px; border: 1px solid var(--button-border); border-radius: 6px; background: var(--button-bg); color: var(--text); font: 500 9px var(--font-ui); cursor: pointer; }
.telemetry-footer button:hover { background: var(--button-hover); border-color: var(--button-border-hover); }