.app-container{display:flex;flex-direction:column;min-height:100vh;height:100vh;width:100vw;overflow:hidden}.header{flex:0 0 auto}footer.app-footer{margin-top:8px;padding:8px 0;text-align:center;font-size:11px;color:#888;border-top:1px solid #eee;background:#fafbfc}.main-content{display:flex;min-height:0;flex:1 1 auto;height:auto;overflow:hidden}.center-area{flex:1;min-height:0;display:flex;flex-direction:column;height:100%}.pages-title{margin-top:0;margin-bottom:8px;font-size:22px}.pages-grid{flex:1;min-height:0;height:100%;overflow-y:auto;margin-bottom:0}.home{animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.hero{text-align:center;padding:3rem 0;margin-bottom:3rem}.hero h1{font-size:2.5rem;margin-bottom:1rem;color:#333}.hero p{font-size:1.2rem;color:#666}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-bottom:3rem}.feature-card{background:#fff;border-radius:8px;padding:2rem;text-decoration:none;color:inherit;transition:transform .2s,box-shadow .2s;box-shadow:0 2px 8px #0000001a;cursor:pointer}.feature-card:hover{transform:translateY(-4px);box-shadow:0 4px 12px #00000026}.feature-icon{font-size:3rem;margin-bottom:1rem}.feature-card h3{font-size:1.3rem;margin-bottom:.5rem;color:#333}.feature-card p{color:#666}.info{background:#fff;padding:2rem;border-radius:8px;text-align:center}.info h2{margin-bottom:1rem;color:#333}.info p{color:#666;font-size:1.1rem}.page-container{background:#fff;border-radius:8px;padding:2rem;box-shadow:0 2px 8px #0000001a}.page-container h1{margin-bottom:.5rem;color:#333}.page-container p{color:#666;margin-bottom:2rem}.upload-area{border:2px dashed #ccc;border-radius:8px;padding:2rem;text-align:center;transition:all .2s;cursor:pointer;background-color:#f9f9f9}.upload-area:hover,.upload-area.active{border-color:#007bff;background-color:#f0f7ff}.upload-area input[type=file]{display:none}.upload-icon{font-size:2.5rem;margin-bottom:1rem}.upload-text{font-size:1.1rem;color:#333;margin-bottom:.5rem}.upload-subtext{color:#999;font-size:.9rem}.file-list{margin-top:2rem}.file-item{background:#f5f5f5;padding:1rem;margin-bottom:.5rem;border-radius:4px;display:flex;justify-content:space-between;align-items:center}.file-name{color:#333;font-weight:500}.file-size{color:#999;font-size:.9rem;margin-left:1rem}.remove-btn{background:#dc3545;color:#fff;border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;transition:background .2s}.remove-btn:hover{background:#c82333}.btn{padding:.75rem 1.5rem;border:none;border-radius:4px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s;text-decoration:none;display:inline-block}.btn-primary{background:#007bff;color:#fff}.btn-primary:hover:not(:disabled){background:#0056b3}.btn-primary:disabled{background:#ccc;cursor:not-allowed}.btn-secondary{background:#6c757d;color:#fff}.btn-secondary:hover:not(:disabled){background:#545b62}.btn-group{display:flex;gap:1rem;margin-top:2rem;flex-wrap:wrap}.loading{text-align:center;padding:2rem;color:#666}.spinner{border:4px solid #f3f3f3;border-top:4px solid #007bff;border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:0 auto 1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-message{background:#f8d7da;color:#721c24;padding:1rem;border-radius:4px;margin-bottom:1rem;border:1px solid #f5c6cb}.workspace-container{display:flex;height:100vh;flex-direction:column}.header-bar{display:flex;justify-content:flex-end;align-items:center;padding:12px 20px;border-bottom:1px solid #e0e0e0;background:#fafafa;gap:12px}.main-content{display:flex;flex:1;overflow:hidden}.sidebar-left{width:200px;padding:15px;border-right:1px solid #e0e0e0;background:#f9f9f9;overflow-y:auto;display:flex;flex-direction:column;gap:16px}.sidebar-section{display:flex;flex-direction:column;gap:12px}.sidebar-label{font-size:12px;font-weight:600;color:#666;text-transform:uppercase;letter-spacing:.5px}.center-area{flex:1;display:flex;flex-direction:column;overflow:hidden;padding:15px}.pages-grid{display:grid;grid-template-columns:1fr;gap:24px;overflow-y:auto;flex:1}.page-card{border:1px solid #ddd;border-radius:6px;padding:10px;background:#fff;display:flex;flex-direction:column;gap:8px;cursor:move;transition:all .2s}.page-card:hover{box-shadow:0 2px 8px #0000001a;border-color:#bbb}.page-card.dragging{opacity:.5;box-shadow:0 4px 12px #0003}.page-card.drag-over{border-color:#007bff;background:#e7f3ff;box-shadow:0 0 0 2px #007bff40}.page-header{font-size:12px;color:#666;font-weight:500;word-break:break-word}.page-canvas-wrapper{position:relative;display:block;line-height:0;cursor:default;margin:0 auto;max-width:100%;overflow:hidden}.page-canvas-wrapper.tool-active{cursor:crosshair}.page-canvas{display:block;width:auto;height:auto;border:1px solid #eee;border-radius:4px;background:#fff}.overlay-item{position:absolute;display:flex;align-items:flex-start;gap:2px;cursor:move;-webkit-user-select:none;user-select:none;z-index:10}.overlay-content{position:relative;display:block;line-height:0}.overlay-item.sig-overlay .overlay-content img{width:100%;height:auto;display:block;pointer-events:none;opacity:.95;border-radius:2px}.overlay-item.text-overlay .overlay-content{line-height:normal;background:#fffffff2;border:1px dashed rgba(0,0,0,.12);border-radius:2px;padding:2px 4px}.text-overlay-input{border:none;background:transparent;color:#111;outline:none;min-width:40px;width:100%;cursor:text;font-family:inherit;display:block}.resize-handle{position:absolute;width:9px;height:9px;background:#fff;border:1.5px solid #2979ff;border-radius:2px;opacity:0;transition:opacity .15s;z-index:20}.overlay-item:hover .resize-handle{opacity:1}.resize-handle.nw{top:-5px;left:-5px;cursor:nw-resize}.resize-handle.ne{top:-5px;right:-5px;cursor:ne-resize}.resize-handle.sw{bottom:-5px;left:-5px;cursor:sw-resize}.resize-handle.se{bottom:-5px;right:-5px;cursor:se-resize}.overlay-delete{width:15px;height:15px;padding:0;background:#dc3545;color:#fff;border:none;border-radius:50%;font-size:11px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;opacity:0;transition:opacity .15s}.overlay-item:hover .overlay-delete{opacity:1}.tool-btn{width:100%;padding:7px 10px;font-size:12px;background:#f0f0f0;color:#333;border:1px solid #ddd;border-radius:4px;cursor:pointer;text-align:left;transition:all .15s}.tool-btn:hover{background:#e4e4e4}.tool-btn.active{background:#007bff;color:#fff;border-color:#0056b3}.tool-hint{font-size:11px;color:#888;font-style:italic;text-align:center;padding:2px 0}.page-controls{display:flex;gap:6px;flex-wrap:wrap}.page-controls button{flex:1;min-width:50px;padding:6px 8px;font-size:12px;background:#f0f0f0;border:1px solid #ddd;border-radius:4px;cursor:pointer;transition:all .2s}.page-controls button:hover:not(:disabled){background:#e0e0e0;border-color:#999}.page-controls button:disabled{opacity:.5;cursor:not-allowed;background:#f5f5f5;border-color:#e0e0e0}.delete-btn{background:#ffebee!important;color:#c62828;border-color:#ef5350!important}.delete-btn:hover{background:#ffcdd2!important}.sidebar-right{width:220px;padding:15px;border-left:1px solid #e0e0e0;background:#f9f9f9;overflow-y:auto;display:flex;flex-direction:column;gap:16px}.files-list{display:flex;flex-direction:column;gap:8px}.file-item{padding:10px;background:#fff;border:1px solid #ddd;border-radius:4px;font-size:13px;color:#333}.file-name{font-weight:500;margin-bottom:4px;word-break:break-word}.file-pages{font-size:11px;color:#999}.signature-panel{display:flex;flex-direction:column;gap:8px}.signature-preview{border:1px solid #ddd;border-radius:4px;padding:6px;background:#fafafa;text-align:center}.signature-preview img{max-width:100%;max-height:60px;display:block;margin:0 auto}.signature-status{font-size:11px;color:#999;text-align:center}.success-message{background:#d4edda;color:#155724;padding:1rem;border-radius:4px;margin-bottom:1rem;border:1px solid #c3e6cb}@media(max-width:900px){.workspace-container{height:auto!important;min-height:100vh;overflow:visible!important}.main-content{height:auto!important;overflow:visible!important;display:flex!important;flex-direction:column!important;width:100%!important;gap:16px}.sidebar-left,.sidebar-right,.center-area,.pages-grid,.files-list{overflow:visible!important;max-height:none!important;height:auto!important}.sidebar-left,.center-area,.sidebar-right{width:100%!important;max-width:100%!important;flex:none!important}.center-area{min-height:60vh;padding:12px}.page-canvas-wrapper{width:100%!important;min-height:60vh;overflow:visible!important}canvas,.page-canvas{width:100%!important;height:auto!important;max-width:100%!important;display:block}footer.app-footer{position:static!important;width:100%!important;margin-top:16px}}.app{min-height:100vh;background-color:#f5f5f5}.container{max-width:1200px;margin:0 auto;padding:2rem}@media(max-width:768px){.container{padding:1rem}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5;color:#333}button{cursor:pointer;font-size:1rem}input[type=file]{cursor:pointer}