*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0f1117;--bg-surface:#1a1d27;--bg-hover:#252836;--border:#2a2d3a;--text:#c4c7d4;--text-dim:#6b7084;--text-bright:#e8eaf0;--accent:#3b82f6;--accent-hover:#2563eb;--danger:#ef4444;--warning:#f59e0b;--success:#10b981;--font:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "SF Mono", "Fira Code", monospace}body{font-family:var(--font);background:var(--bg);color:var(--text);height:100vh;line-height:1.5;overflow:hidden}#root{height:100vh}.app-shell{flex-direction:column;height:100vh;display:flex}.app-header{background:var(--bg-surface);border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;height:48px;padding:0 16px;display:flex}.header-left{align-items:center;gap:16px;display:flex}.app-title{color:var(--text-bright);letter-spacing:-.02em;font-size:16px;font-weight:700}.file-name{color:var(--text-dim);font-size:13px;font-family:var(--font-mono)}.app-body{flex:1;display:flex;overflow:hidden}.main-area{flex-direction:column;flex:1;display:flex;position:relative;overflow:hidden}.sidebar{background:var(--bg-surface);border-left:1px solid var(--border);flex-direction:column;flex-shrink:0;width:280px;display:flex;overflow-y:auto}.sidebar-help{border-top:1px solid var(--border);margin-top:auto;padding:16px}.sidebar-help h4{text-transform:uppercase;letter-spacing:.05em;color:var(--text-dim);margin-bottom:8px;font-size:12px}.sidebar-help ul{color:var(--text-dim);font-size:12px;list-style:none}.sidebar-help li{align-items:center;gap:8px;padding:2px 0;display:flex}kbd{font-size:11px;font-family:var(--font-mono);background:var(--bg);border:1px solid var(--border);color:var(--text);text-align:center;border-radius:3px;min-width:20px;padding:1px 6px;display:inline-block}.toolbar{background:var(--bg-surface);border-bottom:1px solid var(--border);flex-shrink:0;align-items:center;gap:4px;padding:6px 12px;display:flex}.toolbar-btn{color:var(--text);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;align-items:center;gap:6px;padding:6px 12px;font-size:13px;transition:all .15s;display:flex}.toolbar-btn:hover{background:var(--bg-hover)}.toolbar-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.toolbar-icon{font-size:16px}.toolbar-divider{background:var(--border);width:1px;height:24px;margin:0 4px}.toolbar-btn.ai-btn{border:1px solid var(--border);background:var(--bg)}.toolbar-btn.ai-btn:hover:not(:disabled){border-color:var(--success);color:var(--success)}.toolbar-btn.ai-btn:disabled{opacity:.4;cursor:not-allowed}.toolbar-error{color:var(--danger);text-overflow:ellipsis;white-space:nowrap;max-width:300px;margin-left:8px;font-size:12px;overflow:hidden}.toolbar-hint{color:var(--accent);margin-left:8px;font-size:12px;font-style:italic}.toolbar-scale-info{font-size:12px;font-family:var(--font-mono);color:var(--warning);background:#f59e0b1a;border-radius:4px;margin-left:auto;padding:4px 8px}.page-nav{background:var(--bg-surface);border-bottom:1px solid var(--border);flex-shrink:0;justify-content:center;align-items:center;gap:12px;padding:6px 12px;display:flex}.page-nav-btn{background:var(--bg-hover);color:var(--text);border:1px solid var(--border);cursor:pointer;border-radius:4px;padding:4px 12px;font-size:13px;transition:all .15s}.page-nav-btn:hover:not(:disabled){background:var(--accent);color:#fff;border-color:var(--accent)}.page-nav-btn:disabled{opacity:.3;cursor:not-allowed}.page-nav-info{color:var(--text-dim);font-size:13px;font-family:var(--font-mono);text-align:center;min-width:120px}.canvas-container{background:#0a0b0f;flex:1;overflow:hidden}.pdf-dropzone{cursor:pointer;justify-content:center;align-items:center;height:100%;padding:40px;display:flex}.dropzone-content{border:2px dashed var(--border);color:var(--text-dim);border-radius:16px;flex-direction:column;align-items:center;gap:12px;padding:60px 80px;transition:all .2s;display:flex}.pdf-dropzone:hover .dropzone-content{border-color:var(--accent);color:var(--accent);background:#3b82f60d}.dropzone-title{color:var(--text);font-size:18px;font-weight:600}.dropzone-subtitle{font-size:14px}.dropzone-error{color:var(--danger);margin-top:8px;font-size:13px}.loading-spinner{border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:40px;height:40px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.sidebar-scale-prompt{border-bottom:1px solid var(--border);padding:16px}.sidebar-scale-prompt p{color:var(--text-dim);font-size:13px}.room-list{padding:16px}.room-list-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.room-list h3{text-transform:uppercase;letter-spacing:.05em;color:var(--text-dim);font-size:12px}.btn-clear{color:var(--danger);border:1px solid var(--danger);cursor:pointer;opacity:.7;background:0 0;border-radius:4px;padding:2px 8px;font-size:11px;transition:opacity .15s}.btn-clear:hover{opacity:1}.room-list-empty{color:var(--text-dim);font-size:13px;line-height:1.6}.room-item{cursor:pointer;border-radius:6px;align-items:center;gap:10px;margin-bottom:2px;padding:8px 10px;transition:background .15s;display:flex}.room-item:hover{background:var(--bg-hover)}.room-item.selected{background:var(--bg-hover);outline:1px solid var(--accent)}.room-color{border-radius:3px;flex-shrink:0;width:12px;height:12px}.room-info{flex-direction:column;flex:1;min-width:0;display:flex}.room-label-input{color:var(--text-bright);background:0 0;border:none;outline:none;width:100%;padding:0;font-size:13px;font-weight:500}.room-label-input:focus{border-bottom:1px solid var(--accent)}.room-area{color:var(--text-dim);font-size:12px;font-family:var(--font-mono)}.room-delete{color:var(--text-dim);cursor:pointer;opacity:0;background:0 0;border:none;padding:0 4px;font-size:18px;line-height:1;transition:opacity .15s}.room-item:hover .room-delete{opacity:1}.room-delete:hover{color:var(--danger)}.room-copy{color:var(--text-dim);cursor:pointer;opacity:0;background:0 0;border:none;padding:0 4px;font-size:14px;line-height:1;transition:opacity .15s}.room-item:hover .room-copy{opacity:1}.room-copy:hover{color:var(--accent)}.room-actions{gap:8px;margin-top:12px;padding:0 2px;display:flex}.room-action-btn{text-align:center;flex:1;padding:6px 8px!important;font-size:12px!important}.room-action-btn:disabled{opacity:.5;cursor:not-allowed}.room-export-error{color:var(--danger);margin-top:6px;padding:0 2px;font-size:12px}.room-total{border-top:1px solid var(--border);color:var(--text-bright);justify-content:space-between;margin-top:8px;padding:12px 10px 0;font-size:14px;display:flex}.modal-overlay{z-index:1000;background:#0009;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--bg-surface);border:1px solid var(--border);border-radius:12px;min-width:320px;max-width:400px;padding:24px}.modal h3{color:var(--text-bright);margin-bottom:8px;font-size:16px}.modal p{color:var(--text-dim);margin-bottom:16px;font-size:13px}.modal-input-row{gap:8px;margin-bottom:16px;display:flex}.modal-input-row input,.modal-input-row select{background:var(--bg);border:1px solid var(--border);color:var(--text-bright);border-radius:6px;outline:none;padding:8px 12px;font-size:14px}.modal-input-row input{flex:1}.modal-input-row input:focus,.modal-input-row select:focus{border-color:var(--accent)}.scale-presets{flex-wrap:wrap;gap:6px;margin-top:12px;display:flex}.scale-preset-btn{background:var(--bg);border:1px solid var(--border);color:var(--text);font-size:13px;font-family:var(--font-mono);cursor:pointer;border-radius:6px;padding:6px 12px;transition:all .15s}.scale-preset-btn:hover{border-color:var(--accent);color:var(--accent)}.scale-preset-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.modal-actions{justify-content:flex-end;display:flex}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:6px;padding:8px 16px;font-size:13px;font-weight:500;transition:background .15s}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-subtle{color:var(--text);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:6px;padding:6px 12px;font-size:13px;transition:all .15s}.btn-subtle:hover{background:var(--bg-hover);border-color:var(--text-dim)}.header-right{align-items:center;gap:8px;display:flex}.project-name-input{color:var(--text-bright);background:0 0;border:1px solid #0000;border-radius:4px;outline:none;width:200px;padding:4px 8px;font-size:14px;font-weight:500;transition:border-color .15s}.project-name-input:hover{border-color:var(--border)}.project-name-input:focus{border-color:var(--accent);background:var(--bg)}.save-status{border-radius:4px;padding:2px 8px;font-size:11px;font-weight:500}.save-status-saved{color:var(--success);background:#10b9811a}.save-status-saving{color:var(--accent);background:#3b82f61a}.save-status-dirty{color:var(--warning);background:#f59e0b1a}.save-status-error{color:var(--danger);background:#ef44441a}.projects-view{justify-content:center;align-items:center;display:flex}.projects-panel{width:100%;max-width:520px;padding:40px}.projects-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.projects-header h2{color:var(--text-bright);font-size:20px;font-weight:700}.projects-error{color:var(--danger);background:#ef44441a;border-radius:6px;margin-bottom:12px;padding:8px 12px;font-size:13px}.projects-loading{color:var(--text-dim);flex-direction:column;align-items:center;gap:12px;padding:40px;display:flex}.projects-empty{text-align:center;color:var(--text-dim);padding:40px 20px;font-size:14px;line-height:1.8}.projects-list{flex-direction:column;gap:4px;display:flex}.project-card{background:var(--bg-surface);border:1px solid var(--border);cursor:pointer;border-radius:8px;align-items:center;gap:12px;padding:14px 16px;transition:all .15s;display:flex}.project-card:hover{border-color:var(--accent);background:var(--bg-hover)}.project-card-info{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.project-card-name{color:var(--text-bright);text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:600;overflow:hidden}.project-card-meta{color:var(--text-dim);font-size:12px}.project-card-date{color:var(--text-dim);font-size:11px;font-family:var(--font-mono)}.project-card-delete{color:var(--text-dim);cursor:pointer;opacity:0;background:0 0;border:none;border-radius:4px;padding:4px 8px;font-size:20px;line-height:1;transition:all .15s}.project-card:hover .project-card-delete{opacity:1}.project-card-delete:hover{color:var(--danger);background:#ef44441a}.projects-skip{text-align:center;margin-top:24px}.projects-skip .btn-subtle{color:var(--text-dim);font-size:12px}.auth-user-name{color:var(--text);text-overflow:ellipsis;white-space:nowrap;max-width:150px;font-size:13px;overflow:hidden}.auth-modal{min-width:340px;max-width:380px}.auth-tabs{border-bottom:1px solid var(--border);gap:0;margin-bottom:20px;display:flex}.auth-tab{color:var(--text-dim);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;flex:1;padding:10px 0;font-size:14px;font-weight:500;transition:all .15s}.auth-tab:hover{color:var(--text)}.auth-tab.active{color:var(--accent);border-bottom-color:var(--accent)}.auth-field{margin-bottom:14px}.auth-field label{color:var(--text-dim);text-transform:uppercase;letter-spacing:.04em;margin-bottom:4px;font-size:12px;display:block}.auth-field input{background:var(--bg);border:1px solid var(--border);width:100%;color:var(--text-bright);border-radius:6px;outline:none;padding:10px 12px;font-size:14px;transition:border-color .15s}.auth-field input:focus{border-color:var(--accent)}.auth-error{color:var(--danger);background:#ef44441a;border-radius:6px;margin-bottom:12px;padding:8px 12px;font-size:13px}.auth-submit{width:100%;margin-top:4px;padding:10px;font-size:14px}.auth-note{color:var(--text-dim);text-align:center;margin-top:16px;font-size:12px}