:root{--accent: #4facfe;--accent-dark: #0066cc;--accent-dim: rgba(79, 172, 254, .12);--accent-mid: rgba(79, 172, 254, .28);--header-bg: #111;--toolbar-bg: #f4f5f7;--border: rgba(0, 0, 0, .08);--border-dark: rgba(0, 0, 0, .14);--text: #1a1a1a;--text-muted: rgba(0, 0, 0, .5);--bg: #f4f5f7;--surface: #fff;--header-h: 48px;--toolbar-h: 38px;--status-h: 28px;--pdf-zoom: 1}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,Segoe UI,system-ui,sans-serif;font-size:13px;background:var(--bg);color:var(--text);height:100vh;display:flex;flex-direction:column;overflow:hidden}.app-header{height:var(--header-h);display:flex;overflow:auto;align-items:center;gap:12px;padding:0 16px;background:var(--header-bg);flex-shrink:0;z-index:100}.header-left{display:flex;align-items:center;flex-shrink:0}.header-center{display:flex;align-items:center;gap:8px;flex:0 0 auto}.header-right{display:flex;align-items:center;gap:6px;margin-left:auto}.app-logo{display:flex;align-items:center;gap:7px;font-weight:600;font-size:13px;color:#fff;white-space:nowrap;letter-spacing:.2px}.app-logo svg{color:var(--accent)}.file-btn{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:20px;border:1px solid rgba(255,255,255,.18);background:#ffffff12;color:#ffffffd9;cursor:pointer;font-size:12px;font-family:inherit;white-space:nowrap;transition:background .15s,border-color .15s}.file-btn:hover{background:#ffffff21;border-color:#ffffff4d}.file-btn--secondary{border-style:dashed}.file-btn input[type=file]{display:none}.file-btn.loaded{border-color:var(--accent);color:var(--accent)}.tab-bar{display:flex;gap:2px;margin-left:auto}.tab-btn{padding:5px 14px;border-radius:20px;border:1px solid transparent;background:transparent;color:#ffffff8c;font-family:inherit;font-size:12px;font-weight:500;cursor:pointer;transition:background .15s,color .15s;white-space:nowrap}.tab-btn:hover:not(:disabled){background:#ffffff17;color:#ffffffe6}.tab-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.tab-btn:disabled{opacity:.35;cursor:not-allowed}.icon-btn{display:inline-flex;align-items:center;gap:5px;padding:5px 11px;border-radius:20px;border:1px solid rgba(255,255,255,.18);background:#ffffff12;color:#fffc;font-family:inherit;font-size:12px;cursor:pointer;transition:background .15s}.icon-btn:hover{background:#ffffff24}.icon-btn--primary{background:var(--accent);border-color:var(--accent);color:#fff}.icon-btn--primary:hover{background:var(--accent-dark);border-color:var(--accent-dark)}.dropdown{position:relative;display:inline-block}.dropdown-menu{display:none;position:fixed;background:#fff;min-width:240px;border-radius:8px;box-shadow:0 10px 25px #00000026;border:1px solid var(--border-dark);z-index:1000;padding:6px 0;overflow:hidden;animation:dropdownFade .15s ease}.dropdown.open .dropdown-menu{display:block}@keyframes dropdownFade{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.dropdown-item{display:flex;align-items:center;gap:12px;width:100%;padding:10px 16px;border:none;background:transparent;color:var(--text);font-family:inherit;font-size:13px;text-align:left;cursor:pointer;transition:background .12s}.dropdown-item:hover:not(:disabled){background:var(--bg)}.dropdown-item:disabled{opacity:.45;cursor:not-allowed}.item-icon{display:inline-flex;align-items:center;justify-content:center;width:32px;height:20px;background:var(--bg);border:1px solid var(--border-dark);border-radius:4px;font-size:9px;font-weight:700;color:var(--text-muted);flex-shrink:0}#html-preview.selection-mode .pdf-zone,#visual-diff-html.selection-mode .pdf-zone{border-left:3px solid var(--accent);background:#4facfe0a;border-radius:2px;cursor:grab;transition:border-color .1s,background .1s;padding-left:4px}#html-preview.selection-mode .pdf-zone:hover,#visual-diff-html.selection-mode .pdf-zone:hover{border-left-color:var(--accent-dark);background:#4facfe17}#html-preview.selection-mode .pdf-region,#visual-diff-html.selection-mode .pdf-region{outline:1px dashed rgba(79,172,254,.4);outline-offset:2px;cursor:grab;border-radius:2px;transition:outline-color .1s,background .1s}#html-preview.selection-mode .pdf-region:hover,#visual-diff-html.selection-mode .pdf-region:hover{outline:2px dashed var(--accent);background:#4facfe0d}#html-preview.selection-mode .sel-selected,#visual-diff-html.selection-mode .sel-selected{outline:2px solid var(--accent)!important;background:#0078d414!important}.sel-drag-handle{position:absolute;top:4px;left:4px;cursor:grab;color:#96969699;font-size:12px;user-select:none;z-index:10;line-height:1;pointer-events:all}.sel-drag-handle:hover{color:var(--accent)}.sel-dragging{opacity:.35}.sel-drop-indicator{height:28px;background:#4facfe1f;border:2px dashed var(--accent);border-radius:4px;pointer-events:none;z-index:10;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;color:var(--accent);letter-spacing:.3px;margin:2px 0}.sel-drop-indicator--col{width:100px;height:100%;min-height:40px;writing-mode:horizontal-tb;display:inline-flex;align-items:center;justify-content:center;vertical-align:top;font-size:10px}#html-preview.selection-mode .pdf-region.sel-drop-left,#visual-diff-html.selection-mode .pdf-region.sel-drop-left{box-shadow:-3px 0 0 var(--accent);outline:2px dashed var(--accent)}#html-preview.selection-mode .pdf-region.sel-drop-right,#visual-diff-html.selection-mode .pdf-region.sel-drop-right{box-shadow:3px 0 0 var(--accent);outline:2px dashed var(--accent)}#html-preview,#visual-diff-html{position:relative}.sel-marquee{position:absolute;border:1.5px dashed var(--accent);background:#0078d412;pointer-events:none;border-radius:2px;z-index:20}#btn-select-mode.active{background:var(--accent);color:#fff;border-color:var(--accent)}#view-code-dialog{border:1px solid var(--border-dark);border-radius:8px;padding:0;width:min(660px,92vw);max-height:90vh;box-shadow:0 12px 32px #00000038;overflow:hidden;margin:auto}#view-code-dialog::backdrop{background:#00000061;display:flex;align-items:center;justify-content:center}.vc-header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:#1e1e1e;border-bottom:1px solid #333}.vc-label{font-family:Courier New,monospace;font-size:12px;color:#9cdcfe}.vc-btn-icon{background:transparent;border:none;color:#888;cursor:pointer;font-size:14px;padding:2px 6px;border-radius:4px}.vc-btn-icon:hover{background:#333;color:#fff}#vc-monaco-container{height:320px}.vc-footer{display:flex;justify-content:flex-end;gap:8px;padding:10px 14px;background:var(--bg);border-top:1px solid var(--border-dark)}.tool-btn--primary{background:var(--accent);color:#fff;border-color:var(--accent)}.tool-btn--primary:hover{background:var(--accent-dark);border-color:var(--accent-dark)}.toolbar-bar{height:var(--toolbar-h);display:flex;align-items:center;gap:0;padding:0 12px;background:var(--surface);border-bottom:1px solid var(--border-dark);flex-shrink:0;overflow-x:auto}.toolbar-group{display:flex;align-items:center;gap:2px}.toolbar-sep{width:1px;height:18px;background:var(--border-dark);margin:0 8px;flex-shrink:0}.tool-btn{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:26px;padding:0 8px;border-radius:6px;border:1px solid transparent;background:transparent;color:var(--text);font-family:inherit;font-size:12px;cursor:pointer;transition:background .12s,border-color .12s;white-space:nowrap}.tool-btn:hover{background:var(--accent-dim);border-color:#4facfe4d;color:var(--accent-dark)}.tool-btn.active{background:var(--accent-dim);border-color:#4facfe66;color:var(--accent-dark)}.tool-select{height:26px;padding:0 6px;border-radius:6px;border:1px solid var(--border-dark);background:var(--surface);color:var(--text);font-family:inherit;font-size:12px;cursor:pointer}.page-nav{gap:4px}.page-counter{font-size:12px;color:var(--text-muted);padding:0 6px;white-space:nowrap}.tool-label{font-size:11px;color:var(--text-muted);padding:0 4px 0 2px;white-space:nowrap;user-select:none}.zone-chips{display:flex;align-items:center;gap:3px}.zone-chip{font-size:11px;padding:0 6px;height:22px;border-radius:11px;background:var(--accent-dim);border-color:#4facfe4d;color:var(--accent-dark)}.zone-chip:hover{background:var(--accent-dim);border-color:var(--accent-dark)}.pdf-zone--cols-2{display:grid;grid-template-columns:repeat(2,1fr);column-gap:20px}.pdf-zone--cols-3{display:grid;grid-template-columns:repeat(3,1fr);column-gap:14px}.pdf-zone--cols-4{display:grid;grid-template-columns:repeat(4,1fr);column-gap:10px}.pdf-zone--flex-center{display:block}.pdf-col{min-width:0}.pdf-col--left{padding-right:10px}.pdf-col--center{padding-left:10px;padding-right:10px}.pdf-col--right{padding-left:10px}@media (max-width: 720px){.pdf-zone--cols-2,.pdf-zone--cols-3,.pdf-zone--cols-4{grid-template-columns:1fr}}.status-bar{height:var(--status-h);display:flex;align-items:center;gap:8px;padding:0 16px;background:#fffbeb;border-bottom:1px solid #fde68a;font-size:12px;color:#92400e;flex-shrink:0}.status-bar[hidden]{display:none}.status-spinner{width:14px;height:14px;border:2px solid rgba(146,64,14,.2);border-top-color:#92400e;border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}.status-progress{margin-left:auto;font-size:11px;opacity:.75}@keyframes spin{to{transform:rotate(360deg)}}.view-panel{display:none;flex:1;overflow:hidden;min-height:0}.view-panel.active{display:flex}.canvas-scroll{flex:1;overflow-y:auto;overflow-x:auto;align-items:center;gap:16px;padding:24px;background:#e5e7eb}.page-wrapper{background:#fff;box-shadow:0 2px 12px #0000001a;position:relative;overflow:hidden;scroll-margin-top:24px;zoom:var(--pdf-zoom, 1)}.page-wrapper canvas{display:block}.editable-text-layer{position:absolute;top:0;left:0;width:100%;height:100%;z-index:10}.editable-text-layer span{position:absolute;white-space:pre;cursor:text;transform-origin:0% 0%;line-height:1;border-radius:2px}.editable-text-layer span:hover{color:#0000000d;background:#4facfe14}.prose-area{flex:1;overflow-y:auto;padding:40px 48px;background:var(--surface);outline:none;line-height:1.65}.prose-area:focus{outline:none}.prose-area h1{font-size:2em;margin:.67em 0;line-height:1.2}.prose-area h2{font-size:1.5em;margin:.75em 0;line-height:1.3}.prose-area h3{font-size:1.17em;margin:.83em 0}.prose-area h4{font-size:1em;margin:1em 0;font-weight:600}.prose-area p{margin:.7em 0}.prose-area ul,.prose-area ol{padding-left:1.6em;margin:.7em 0}.prose-area li{margin:.25em 0}.prose-area img{max-width:100%;height:auto;display:block;margin:1em auto}.prose-area table{border-collapse:collapse;width:100%;margin:1.2em 0;font-size:.95em}.prose-area th,.prose-area td{border:1px solid #d1d5db;padding:7px 12px;text-align:left}.prose-area th{background:#f9fafb;font-weight:600}.prose-area:has(.pdf-page-content){background:#e5e7eb;padding:32px 0}.prose-area .pdf-page-content{background:#fff;max-width:800px;margin:0 auto 24px;padding:64px 72px;box-shadow:0 2px 12px #0000001a;border-radius:4px;min-height:1100px;position:relative;scroll-margin-top:24px}.prose-area .pdf-page-content>.page-label{position:absolute;top:12px;right:24px;margin:0;font-size:11px;font-weight:400;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}#visual-diff-html.prose-area .pdf-page-content{max-width:none;margin:0 16px 16px;padding:48px 40px}.prose-area td.highlight-row,.prose-area th.highlight-row,.prose-area td.highlight-col,.prose-area th.highlight-col{background:#4facfe1a}.prose-area td.highlight-row.highlight-col,.prose-area th.highlight-row.highlight-col{background:#4facfe38}.monaco-fill{flex:1;width:100%;min-height:0}.visual-diff-layout{flex-direction:row}.vd-pane{flex:1;display:flex;flex-direction:column;min-width:0;overflow:hidden}.vd-pane-header{display:flex;align-items:center;gap:10px;padding:6px 14px;background:var(--toolbar-bg);border-bottom:1px solid var(--border-dark);flex-shrink:0}.vd-label{font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.6px;padding:2px 8px;border-radius:4px}.vd-label--pdf{background:#4facfe1f;color:var(--accent-dark)}.vd-label--html{background:#4caf501f;color:#2e7d32}.vd-hint{font-size:11px;color:var(--text-muted)}.vd-divider{width:4px;background:var(--border-dark);flex-shrink:0;cursor:col-resize;position:relative;transition:background .15s}.vd-divider:hover,.vd-divider.dragging{background:var(--accent);width:2px}.ctx-menu{position:fixed;z-index:9000;background:var(--surface);border:1px solid var(--border-dark);border-radius:8px;padding:4px;min-width:190px;box-shadow:0 4px 16px #0000001f}.ctx-menu[hidden]{display:none}.ctx-item{display:flex;align-items:center;gap:8px;width:100%;padding:7px 10px;border:none;border-radius:5px;background:transparent;color:var(--text);font-family:inherit;font-size:12px;cursor:pointer;text-align:left;transition:background .1s}.ctx-item:hover{background:var(--accent-dim);color:var(--accent-dark)}.ctx-sep{height:1px;background:var(--border-dark);margin:4px 6px}.toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%);padding:8px 18px;border-radius:20px;background:#111111eb;color:#fff;font-size:12px;border:1px solid rgba(255,255,255,.1);z-index:9999;opacity:0;transition:opacity .25s;pointer-events:none;white-space:nowrap}.toast.visible{opacity:1}.toast[hidden]{display:none}.toast--success{border-color:#4caf5080}.toast--error{border-color:#f4433680}.empty-hint{color:var(--text-muted);font-size:14px;text-align:center;margin-top:80px;width:100%}@media print{body{overflow:visible;height:auto}.app-header,.toolbar-bar,.status-bar{display:none!important}.view-panel{display:block!important;height:auto;overflow:visible}#view-html{display:block!important}.prose-area{padding:0;overflow:visible}}.analyze-layout{display:flex;flex-direction:column;height:100%;overflow:hidden}.analyze-meta-bar{padding:8px 16px;border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0}.analyze-status-msg{font-size:12px;color:var(--text-muted);display:block;margin-bottom:4px}.analyze-meta{display:flex;flex-wrap:wrap;gap:4px 0}.ameta-row{display:flex;flex-wrap:wrap;gap:2px 16px;width:100%;font-size:12px}.ameta-field{display:flex;gap:4px;align-items:center}.ameta-key{color:var(--text-muted);font-weight:500}.ameta-val{color:var(--text);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.analyze-body{display:flex;flex:1;overflow:hidden;gap:0}.analyze-canvas-wrap{flex:1;display:flex;flex-direction:column;overflow:auto;padding:12px 16px;border-right:1px solid var(--border)}.analyze-canvas-header{display:flex;align-items:center;gap:8px;margin-bottom:8px;flex-shrink:0}.analyze-canvas{display:block;border:1px solid var(--border);border-radius:4px;max-width:100%}.analyze-legend{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px;font-size:11px}.legend-toggle{display:inline-flex;align-items:center;gap:2px;padding:3px 10px 3px 8px;border-radius:14px;border:1.5px solid var(--lc, #888);background:transparent;color:var(--lc, #888);font-family:inherit;font-size:11px;font-weight:500;cursor:pointer;transition:background .15s,opacity .15s,border-color .15s;user-select:none;white-space:nowrap}.legend-toggle.active{background:color-mix(in srgb,var(--lc, #888) 14%,transparent)}.legend-toggle:not(.active){opacity:.38;text-decoration:line-through;border-style:dashed}.legend-toggle:hover{background:color-mix(in srgb,var(--lc, #888) 22%,transparent);opacity:1}.analyze-stats-wrap{width:240px;flex-shrink:0;padding:12px 14px;overflow-y:auto}.analyze-section-title{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin:0 0 8px}.astat-table{width:100%;border-collapse:collapse;font-size:12px}.astat-key{color:var(--text-muted);padding:3px 8px 3px 0;white-space:nowrap}.astat-val{font-weight:500;padding:3px 0;text-align:right}@media (max-width: 1024px){.visual-diff-layout{flex-direction:column}.vd-divider{width:100%;height:1px;cursor:row-resize}.vd-divider:hover,.vd-divider.dragging{width:100%;height:2px}.analyze-body{flex-direction:column}.analyze-stats-wrap{width:100%;border-top:1px solid var(--border)}.analyze-canvas-wrap{border-right:none}}@media (max-width: 768px){.app-header{height:auto;flex-wrap:wrap;padding:6px 10px;gap:6px}.header-center{flex:1 1 100%;order:3;flex-wrap:wrap}.tab-bar{order:2;flex-wrap:wrap;gap:4px;margin-left:0}.header-right{order:4;margin-left:auto}.toolbar-bar{padding:0 6px}.toolbar-sep{margin:0 4px}.prose-area{padding:20px 16px}.prose-area .pdf-page-content{padding:32px 24px;margin:0 12px 16px}.canvas-scroll{padding:12px 6px}}@media (max-width: 480px){.toolbar-bar #btn-add-page,.toolbar-bar #zone-toolbar-group,.toolbar-bar #sel-block{display:none}.tab-btn{padding:4px 8px;font-size:11px}}#html-preview.selection-mode .pdf-zone,#html-preview.selection-mode .pdf-region,#visual-diff-html.selection-mode .pdf-zone,#visual-diff-html.selection-mode .pdf-region{position:relative}.pdf-zone--flex-center{display:flex;flex-direction:column;align-items:center}.sel-ghost-col{border:2px dashed var(--accent);background:#0078d40d;min-height:80px;display:flex;align-items:center;justify-content:center;border-radius:4px;color:var(--accent);font-size:12px;transition:background .15s}.sel-ghost-col.sel-ghost-active{background:#0078d429}.sel-col-divider{position:absolute;top:0;width:10px;height:100%;cursor:col-resize;z-index:5;transform:translate(-5px)}.sel-col-divider:after{content:"";position:absolute;left:4px;top:0;width:2px;height:100%;background:transparent;transition:background .15s}.sel-col-divider:hover:after,.sel-col-divider--dragging:after{background:var(--accent)}.sel-props-panel{position:fixed;z-index:800;background:var(--surface);border:1px solid var(--border-dark);border-radius:8px;padding:10px 12px;box-shadow:0 4px 16px #00000024;display:flex;flex-direction:column;gap:8px;min-width:200px;font-size:12px}.sel-props-panel[hidden]{display:none}.sel-props-row{display:flex;align-items:center;gap:6px}.sel-props-label{color:var(--text-muted);width:64px;flex-shrink:0}.sel-props-input{width:54px;height:22px;border:1px solid var(--border-dark);border-radius:4px;padding:0 4px;font-family:inherit;font-size:12px;background:var(--surface);color:var(--text)}