:root{--color-primary: #6B7F6B;--color-primary-hover: #5A6E5A;--color-primary-light: #8FA68F;--color-primary-subtle: rgba(107, 127, 107, .08);--color-primary-muted: rgba(107, 127, 107, .15);--color-bg: #F7F4EF;--color-surface: #FEFCF8;--color-surface-alt: #F2EDE5;--color-border: #E2DDD4;--color-border-light: #EBE7E0;--color-text: #2C2C2C;--color-text-secondary: #6B6560;--color-text-muted: #9B9590;--color-text-inverse: #FEFCF8;--color-danger: #B85C5C;--color-danger-hover: #A04A4A;--color-success: #5C8A5C;--color-warning: #C4953A;--font-heading: "Libre Baskerville", "Georgia", serif;--font-body: "Source Sans 3", "Segoe UI", system-ui, sans-serif;--font-mono: "Source Code Pro", "Menlo", monospace;--text-xs: .75rem;--text-sm: .8125rem;--text-base: .9375rem;--text-md: 1.0625rem;--text-lg: 1.25rem;--text-xl: 1.5rem;--text-2xl: 1.875rem;--leading-tight: 1.3;--leading-normal: 1.6;--space-xs: 4px;--space-sm: 8px;--space-md: 12px;--space-lg: 16px;--space-xl: 24px;--space-2xl: 32px;--space-3xl: 48px;--topbar-height: 56px;--panel-gap: 1px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow-md: 0 2px 6px rgba(0,0,0,.08);--shadow-lg: 0 4px 16px rgba(0,0,0,.1);--shadow-inset: inset 0 1px 3px rgba(0,0,0,.06);--transition-fast: .12s ease;--transition-normal: .2s ease;--transition-slow: .35s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-body);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text);background:var(--color-bg);overflow:hidden;height:100vh;width:100vw}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:var(--leading-tight);color:var(--color-text)}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-hover)}img{max-width:100%;height:auto}button{font-family:var(--font-body);cursor:pointer;border:none;outline:none;background:none}input,textarea{font-family:var(--font-body);font-size:var(--text-base);outline:none}::selection{background:var(--color-primary-muted);color:var(--color-text)}#app{display:flex;flex-direction:column;height:100vh;width:100vw;overflow:hidden}.topbar{display:flex;align-items:center;justify-content:space-between;height:var(--topbar-height);padding:0 var(--space-xl);background:var(--color-surface);border-bottom:1px solid var(--color-border);flex-shrink:0;z-index:100}.topbar-brand{display:flex;align-items:center;gap:var(--space-md)}.topbar-logo{color:var(--color-primary);flex-shrink:0}.topbar-title{font-family:var(--font-heading);font-size:var(--text-lg);font-weight:700;color:var(--color-text);letter-spacing:-.02em}.topbar-actions{display:flex;align-items:center;gap:var(--space-sm)}.btn{display:inline-flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-sm);font-size:var(--text-sm);font-weight:600;line-height:1;transition:all var(--transition-fast);white-space:nowrap;-webkit-user-select:none;user-select:none}.btn svg{flex-shrink:0}.btn-primary{background:var(--color-primary);color:var(--color-text-inverse)}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-surface-alt);border-color:var(--color-primary-light)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--color-primary-subtle);color:var(--color-text)}.btn-icon{width:32px;height:32px;padding:0;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);font-size:var(--text-md);color:var(--color-text-secondary);background:var(--color-surface);border:1px solid var(--color-border-light)}.btn-icon:hover:not(:disabled){background:var(--color-surface-alt);color:var(--color-text)}.btn-sm{padding:var(--space-xs) var(--space-md);font-size:var(--text-xs)}.btn:disabled{opacity:.4;cursor:not-allowed}.main-content{display:grid;grid-template-columns:1fr 340px;flex:1;overflow:hidden;gap:var(--panel-gap);background:var(--color-border)}.panel{background:var(--color-surface);overflow:hidden;position:relative}.document-panel{display:flex;flex-direction:column;background:var(--color-bg)}.edit-panel{display:flex;flex-direction:column;border-left:1px solid var(--color-border);overflow-y:auto}.badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;border-radius:10px;font-family:var(--font-body);font-size:var(--text-xs);font-weight:600;background:var(--color-primary-muted);color:var(--color-primary)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted)}.spinner{width:32px;height:32px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.progress-bar{width:200px;height:4px;background:var(--color-border);border-radius:2px;overflow:hidden}.progress-bar-fill{height:100%;background:var(--color-primary);border-radius:2px;transition:width var(--transition-normal)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.upload-zone{flex:1;display:flex;align-items:center;justify-content:center;padding:var(--space-3xl);cursor:pointer;transition:background var(--transition-normal)}.upload-zone:hover{background:var(--color-primary-subtle)}.upload-zone.drag-over{background:var(--color-primary-muted);outline:2px dashed var(--color-primary);outline-offset:-12px}.upload-zone-content{display:flex;flex-direction:column;align-items:center;gap:var(--space-md);text-align:center;max-width:380px}.upload-zone-icon{color:var(--color-text-muted);margin-bottom:var(--space-sm)}.upload-zone-title{font-family:var(--font-heading);font-size:var(--text-xl);color:var(--color-text);font-weight:700}.upload-zone-desc{font-size:var(--text-base);color:var(--color-text-secondary)}.upload-zone-hint{font-size:var(--text-xs);color:var(--color-text-muted);margin-top:var(--space-sm);padding:var(--space-sm) var(--space-md);background:var(--color-primary-subtle);border-radius:var(--radius-sm)}.canvas-container{flex:1;display:flex;flex-direction:column;overflow:hidden;position:relative}.canvas-viewport{flex:1;overflow:auto;position:relative;display:flex;align-items:flex-start;justify-content:center;padding:var(--space-xl);background:var(--color-bg);background-image:radial-gradient(circle,var(--color-border-light) 1px,transparent 1px);background-size:20px 20px}.canvas-workspace{flex:1;display:flex;flex-direction:row;overflow:hidden;position:relative}.pages-sidebar{width:140px;background:var(--color-surface);border-right:1px solid var(--color-border);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden;z-index:10}.pages-sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-sm) var(--space-md);border-bottom:1px solid var(--color-border-light);background:var(--color-surface-alt)}.pages-sidebar-title{font-size:var(--text-xs);font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-secondary)}.pages-thumbnails-list{flex:1;overflow-y:auto;padding:var(--space-sm);display:flex;flex-direction:column;gap:var(--space-sm)}.page-thumb-item{display:flex;flex-direction:column;align-items:center;gap:4px;padding:6px;border-radius:var(--radius-sm);border:2px solid transparent;background:var(--color-surface-alt);cursor:pointer;transition:all var(--transition-fast)}.page-thumb-item:hover{border-color:var(--color-primary-light);background:var(--color-primary-subtle)}.page-thumb-item.active{border-color:var(--color-primary);background:var(--color-primary-muted);box-shadow:var(--shadow-sm)}.page-thumb-preview{width:100%;max-height:140px;border-radius:2px;box-shadow:0 1px 3px #00000026;background:#fff;display:block;object-fit:contain}.page-thumb-label{font-size:11px;font-weight:600;color:var(--color-text-secondary)}.page-thumb-item.active .page-thumb-label{color:var(--color-primary);font-weight:700}#document-canvas{box-shadow:var(--shadow-lg);border-radius:2px;background:#fff;max-width:none;transform-origin:top left;cursor:text}.canvas-wrapper{position:relative;display:inline-block;margin:0 auto}.text-overlay{position:absolute;top:0;left:0;pointer-events:none}.text-block-overlay{position:absolute;pointer-events:all;cursor:text;border:1.5px solid transparent;border-radius:2px;box-sizing:border-box;transition:background .12s ease,border-color .12s ease;background:transparent}.text-block-overlay:hover{border-color:#2563eb73;background:#2563eb0f}.text-block-overlay.dragging{cursor:grabbing!important;border-color:#2563eb;background:#2563eb2e;box-shadow:0 4px 12px #00000026;z-index:100}.text-block-overlay.selected{border-color:#2563eb;background:#2563eb1f;box-shadow:0 0 0 1.5px #2563eb59;z-index:50}.rotate-handle-stem{position:absolute;top:-20px;left:50%;width:1.5px;height:20px;background:#2563eb;transform:translate(-50%);pointer-events:none;z-index:101;display:none}.rotate-handle{position:absolute;top:-30px;left:50%;transform:translate(-50%);width:20px;height:20px;border-radius:50%;background:#fff;border:2px solid #2563EB;box-shadow:0 2px 6px #00000040;cursor:grab;display:none;align-items:center;justify-content:center;color:#2563eb;z-index:102;transition:transform .12s ease,background .12s ease,border-color .12s ease;pointer-events:all;touch-action:none}.text-block-overlay.selected .rotate-handle-stem{display:block}.text-block-overlay.selected .rotate-handle{display:flex}.rotate-handle:hover,.rotate-handle.rotating{background:#2563eb;color:#fff;transform:translate(-50%) scale(1.15);cursor:grabbing}.rotate-angle-badge{position:absolute;top:-26px;left:50%;transform:translate(-50%);background:#0f172ae6;color:#fff;padding:2px 6px;border-radius:4px;font-size:10px;font-weight:700;white-space:nowrap;pointer-events:none;font-family:var(--font-mono, monospace);box-shadow:0 2px 4px #0003}.text-resize-handle{position:absolute;bottom:-6px;right:-6px;width:12px;height:12px;background:#2563eb;border:2px solid #ffffff;border-radius:3px;box-shadow:0 1px 4px #0000004d;cursor:nwse-resize;z-index:105;pointer-events:all;touch-action:none;transition:transform .1s ease,background .1s ease;display:none}.text-block-overlay.selected .text-resize-handle{display:block}.text-resize-handle:hover,.text-resize-handle.resizing{transform:scale(1.3);background:#1d4ed8}.resize-size-badge{position:absolute;bottom:-24px;right:0;background:#0f172ae6;color:#fff;padding:2px 6px;border-radius:4px;font-size:10px;font-weight:700;white-space:nowrap;pointer-events:none;font-family:var(--font-mono, monospace);box-shadow:0 2px 4px #0003;z-index:110}.canvas-controls{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);background:var(--color-surface);border-top:1px solid var(--color-border);flex-shrink:0}.zoom-level{font-size:var(--text-sm);font-weight:600;color:var(--color-text-secondary);min-width:48px;text-align:center;font-variant-numeric:tabular-nums}.page-indicator{font-size:var(--text-sm);color:var(--color-text-secondary);font-variant-numeric:tabular-nums}.controls-divider{width:1px;height:20px;background:var(--color-border);margin:0 var(--space-xs)}#btn-preview-toggle.active{background:var(--color-primary);color:var(--color-text-inverse);border-color:var(--color-primary)}.ocr-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#f7f4efeb;z-index:50;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.ocr-overlay-content{display:flex;flex-direction:column;align-items:center;gap:var(--space-lg);text-align:center}.ocr-status{font-size:var(--text-base);color:var(--color-text-secondary);font-weight:500}.edit-panel-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-md);color:var(--color-text-muted);padding:var(--space-3xl);text-align:center}.edit-panel-empty p{font-size:var(--text-sm)}.edit-controls{display:flex;flex-direction:column;flex:1;height:100%;overflow-y:auto}.edit-section{padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--color-border-light);display:flex;flex-direction:column}.section-title{font-family:var(--font-body);font-size:var(--text-xs);font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-muted);margin-bottom:var(--space-xs);display:flex;align-items:center;justify-content:space-between}.section-hint{font-size:var(--text-xs);color:var(--color-text-muted);margin-bottom:var(--space-sm)}.block-list{display:flex;flex-direction:column;gap:var(--space-xs);max-height:220px;overflow-y:auto;padding-right:4px}.block-item{display:flex;align-items:center;gap:var(--space-sm);padding:6px 10px;border-radius:var(--radius-sm);font-size:var(--text-xs);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast);border:1px solid transparent;background:var(--color-surface);line-height:1.4;white-space:nowrap;overflow:hidden}.block-item:hover{background:var(--color-primary-subtle);border-color:var(--color-border-light)}.block-item.active{background:var(--color-primary-muted);border-color:var(--color-primary-light);color:var(--color-text);font-weight:600}.block-item-index{flex-shrink:0;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;border-radius:4px;background:var(--color-surface-alt);font-size:11px;font-weight:700;color:var(--color-text-secondary)}.block-item-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.font-analysis-card{background:var(--color-surface-alt);border:1px solid var(--color-border-light);border-radius:var(--radius-md);padding:var(--space-sm) var(--space-md);display:flex;flex-direction:column;gap:var(--space-xs)}.analysis-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-xs) var(--space-md);font-size:var(--text-xs)}.analysis-item{display:flex;flex-direction:column}.analysis-label{font-size:10px;color:var(--color-text-muted);font-weight:600;text-transform:uppercase}.analysis-val{font-size:12px;font-weight:600;color:var(--color-text);display:flex;align-items:center;gap:4px}.color-swatch-inline{width:12px;height:12px;border-radius:2px;border:1px solid rgba(0,0,0,.2);display:inline-block}.history-list{display:flex;flex-direction:column;gap:var(--space-sm);max-height:200px;overflow-y:auto}.history-empty{font-size:var(--text-xs);color:var(--color-text-muted);text-align:center;padding:var(--space-md) 0}.history-item{padding:var(--space-sm) var(--space-md);border-radius:var(--radius-sm);background:var(--color-surface);border:1px solid var(--color-border-light);border-left:3px solid var(--color-primary);transition:all var(--transition-fast);display:flex;flex-direction:column;gap:4px}.history-item:hover{border-color:var(--color-primary-light);box-shadow:var(--shadow-sm)}.history-item-header{display:flex;align-items:center;justify-content:space-between;gap:6px}.history-action-badge{font-size:10px;font-weight:700;padding:1px 6px;border-radius:4px;text-transform:uppercase;letter-spacing:.03em;display:inline-flex;align-items:center;gap:3px}.badge-edit{background:#2563eb1f;color:#2563eb}.badge-resize{background:#9333ea1f;color:#9333ea}.badge-rotate{background:#d977061f;color:#d97706}.badge-move{background:#0d94881f;color:#0d9488}.badge-erase{background:#dc26261f;color:#dc2626}.badge-add{background:#16a34a1f;color:#16a34a}.history-target-text{font-size:11px;font-weight:600;color:var(--color-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-item-time{font-size:10px;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em}.history-item-change{display:flex;flex-direction:column;gap:2px;font-size:var(--text-xs)}.history-old{color:var(--color-danger);text-decoration:line-through;font-family:var(--font-mono);word-break:break-word}.history-new{color:var(--color-success);font-family:var(--font-mono);font-weight:600;word-break:break-word}.history-diff-inline{display:flex;align-items:center;gap:6px;font-size:11px;font-family:var(--font-mono)}.history-diff-arrow{color:var(--color-text-muted);font-size:10px}.history-item-actions{display:flex;gap:var(--space-xs);margin-top:var(--space-xs)}.history-undo-btn{font-size:10px;padding:2px var(--space-sm);border-radius:var(--radius-sm);background:var(--color-surface-alt);color:var(--color-text-secondary);border:1px solid var(--color-border-light);cursor:pointer;transition:all var(--transition-fast)}.history-undo-btn:hover{background:var(--color-danger);color:var(--color-text-inverse);border-color:var(--color-danger)}.inline-editor{position:fixed;z-index:1000;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:var(--space-md);min-width:360px;max-width:440px;box-sizing:border-box}.inline-editor-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-sm);cursor:grab;-webkit-user-select:none;user-select:none;touch-action:none;padding:4px 6px;border-radius:var(--radius-sm);transition:background .12s ease}.inline-editor-header:hover{background:var(--color-surface-alt)}.inline-editor-header:active,.inline-editor-header.dragging{cursor:grabbing!important;background:var(--color-primary-subtle)}.inline-editor-title-wrap{display:flex;align-items:center;gap:6px}.drag-grip-icon{color:var(--color-text-muted);opacity:.7;transition:color .12s ease,opacity .12s ease;flex-shrink:0}.inline-editor-header:hover .drag-grip-icon{color:var(--color-primary);opacity:1}.inline-editor-label{font-size:var(--text-xs);font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-muted)}.inline-editor-confidence{font-size:10px;padding:2px 6px;border-radius:8px;background:var(--color-primary-muted);color:var(--color-primary);font-weight:600}.inline-editor-input{width:100%;padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--text-base);line-height:1.5;resize:vertical;min-height:44px;background:var(--color-surface);color:var(--color-text);box-sizing:border-box;transition:border-color var(--transition-fast)}.inline-editor-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-muted)}.format-toolbar{display:flex;flex-direction:column;gap:8px;margin-top:var(--space-sm);padding:8px 10px;background:var(--color-surface-alt);border-radius:var(--radius-sm);border:1px solid var(--color-border-light);box-sizing:border-box}.format-row{display:flex;align-items:flex-end;gap:var(--space-sm);width:100%;box-sizing:border-box}.format-group{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}.format-label{font-size:10px;font-weight:600;color:var(--color-text-muted);display:flex;align-items:center;justify-content:space-between}.prop-conf{font-size:9px;padding:1px 4px;border-radius:4px;font-weight:700}.format-select,.format-input{padding:3px 6px;font-size:11px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text)}.format-color-input{width:32px;height:24px;padding:0;border:1px solid var(--color-border);border-radius:var(--radius-sm);cursor:pointer;background:none}.align-btn-group{display:flex;gap:2px}.align-btn,.fmt-toggle,.align-btn-group button{padding:2px 6px;height:24px;min-width:22px;font-size:11px;border:1px solid var(--color-border-light);border-radius:var(--radius-sm);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;background:var(--color-surface);color:var(--color-text-secondary);transition:all var(--transition-fast)}.align-btn:hover,.fmt-toggle:hover,.align-btn-group button:hover{background:var(--color-primary-subtle);border-color:var(--color-primary-light);color:var(--color-primary)}.align-btn.active,.fmt-toggle.active{background:var(--color-primary-muted);color:var(--color-primary);border-color:var(--color-primary-light);font-weight:700}.inline-editor-actions{display:flex;justify-content:space-between;align-items:center;gap:var(--space-sm);margin-top:var(--space-sm)}.btn-danger-soft{color:#dc2626;background:#dc262614;border:1px solid rgba(220,38,38,.3);transition:all var(--transition-fast)}.btn-danger-soft:hover{color:#fff!important;background:#dc2626!important;border-color:#dc2626!important;box-shadow:0 2px 6px #dc26264d}@media (max-width: 900px){.main-content{grid-template-columns:1fr;grid-template-rows:1fr auto}.edit-panel{max-height:40vh;border-left:none;border-top:1px solid var(--color-border)}}.toast{position:fixed;bottom:var(--space-xl);left:50%;transform:translate(-50%) 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