.react-flow{direction:ltr}.react-flow__container{position:absolute;width:100%;height:100%;top:0;left:0}.react-flow__pane{z-index:1;cursor:-webkit-grab;cursor:grab}.react-flow__pane.selection{cursor:pointer}.react-flow__pane.dragging{cursor:-webkit-grabbing;cursor:grabbing}.react-flow__viewport{transform-origin:0 0;z-index:2;pointer-events:none}.react-flow__renderer{z-index:4}.react-flow__selection{z-index:6}.react-flow__nodesselection-rect:focus,.react-flow__nodesselection-rect:focus-visible{outline:none}.react-flow .react-flow__edges{pointer-events:none;overflow:visible}.react-flow__edge-path,.react-flow__connection-path{stroke:#b1b1b7;stroke-width:1;fill:none}.react-flow__edge{pointer-events:visibleStroke;cursor:pointer}.react-flow__edge.animated path{stroke-dasharray:5;-webkit-animation:dashdraw .5s linear infinite;animation:dashdraw .5s linear infinite}.react-flow__edge.animated path.react-flow__edge-interaction{stroke-dasharray:none;-webkit-animation:none;animation:none}.react-flow__edge.inactive{pointer-events:none}.react-flow__edge.selected,.react-flow__edge:focus,.react-flow__edge:focus-visible{outline:none}.react-flow__edge.selected .react-flow__edge-path,.react-flow__edge:focus .react-flow__edge-path,.react-flow__edge:focus-visible .react-flow__edge-path{stroke:#555}.react-flow__edge-textwrapper{pointer-events:all}.react-flow__edge-textbg{fill:#fff}.react-flow__edge .react-flow__edge-text{pointer-events:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}.react-flow__connection{pointer-events:none}.react-flow__connection .animated{stroke-dasharray:5;-webkit-animation:dashdraw .5s linear infinite;animation:dashdraw .5s linear infinite}.react-flow__connectionline{z-index:1001}.react-flow__nodes{pointer-events:none;transform-origin:0 0}.react-flow__node{position:absolute;-webkit-user-select:none;-moz-user-select:none;user-select:none;pointer-events:all;transform-origin:0 0;box-sizing:border-box;cursor:-webkit-grab;cursor:grab}.react-flow__node.dragging{cursor:-webkit-grabbing;cursor:grabbing}.react-flow__nodesselection{z-index:3;transform-origin:left top;pointer-events:none}.react-flow__nodesselection-rect{position:absolute;pointer-events:all;cursor:-webkit-grab;cursor:grab}.react-flow__handle{position:absolute;pointer-events:none;min-width:5px;min-height:5px;width:6px;height:6px;background:#1a192b;border:1px solid white;border-radius:100%}.react-flow__handle.connectionindicator{pointer-events:all;cursor:crosshair}.react-flow__handle-bottom{top:auto;left:50%;bottom:-4px;transform:translate(-50%)}.react-flow__handle-top{left:50%;top:-4px;transform:translate(-50%)}.react-flow__handle-left{top:50%;left:-4px;transform:translateY(-50%)}.react-flow__handle-right{right:-4px;top:50%;transform:translateY(-50%)}.react-flow__edgeupdater{cursor:move;pointer-events:all}.react-flow__panel{position:absolute;z-index:5;margin:15px}.react-flow__panel.top{top:0}.react-flow__panel.bottom{bottom:0}.react-flow__panel.left{left:0}.react-flow__panel.right{right:0}.react-flow__panel.center{left:50%;transform:translate(-50%)}.react-flow__attribution{font-size:10px;background:#ffffff80;padding:2px 3px;margin:0}.react-flow__attribution a{text-decoration:none;color:#999}@-webkit-keyframes dashdraw{0%{stroke-dashoffset:10}}@keyframes dashdraw{0%{stroke-dashoffset:10}}.react-flow__edgelabel-renderer{position:absolute;width:100%;height:100%;pointer-events:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}.react-flow__edge.updating .react-flow__edge-path{stroke:#777}.react-flow__edge-text{font-size:10px}.react-flow__node.selectable:focus,.react-flow__node.selectable:focus-visible{outline:none}.react-flow__node-default,.react-flow__node-input,.react-flow__node-output,.react-flow__node-group{padding:10px;border-radius:3px;width:150px;font-size:12px;color:#222;text-align:center;border-width:1px;border-style:solid;border-color:#1a192b;background-color:#fff}.react-flow__node-default.selectable:hover,.react-flow__node-input.selectable:hover,.react-flow__node-output.selectable:hover,.react-flow__node-group.selectable:hover{box-shadow:0 1px 4px 1px #00000014}.react-flow__node-default.selectable.selected,.react-flow__node-default.selectable:focus,.react-flow__node-default.selectable:focus-visible,.react-flow__node-input.selectable.selected,.react-flow__node-input.selectable:focus,.react-flow__node-input.selectable:focus-visible,.react-flow__node-output.selectable.selected,.react-flow__node-output.selectable:focus,.react-flow__node-output.selectable:focus-visible,.react-flow__node-group.selectable.selected,.react-flow__node-group.selectable:focus,.react-flow__node-group.selectable:focus-visible{box-shadow:0 0 0 .5px #1a192b}.react-flow__node-group{background-color:#f0f0f040}.react-flow__nodesselection-rect,.react-flow__selection{background:#0059dc14;border:1px dotted rgba(0,89,220,.8)}.react-flow__nodesselection-rect:focus,.react-flow__nodesselection-rect:focus-visible,.react-flow__selection:focus,.react-flow__selection:focus-visible{outline:none}.react-flow__controls{box-shadow:0 0 2px 1px #00000014}.react-flow__controls-button{border:none;background:#fefefe;border-bottom:1px solid #eee;box-sizing:content-box;display:flex;justify-content:center;align-items:center;width:16px;height:16px;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;padding:5px}.react-flow__controls-button:hover{background:#f4f4f4}.react-flow__controls-button svg{width:100%;max-width:12px;max-height:12px}.react-flow__controls-button:disabled{pointer-events:none}.react-flow__controls-button:disabled svg{fill-opacity:.4}.react-flow__minimap{background-color:#fff}.react-flow__minimap svg{display:block}.react-flow__resize-control{position:absolute}.react-flow__resize-control.left,.react-flow__resize-control.right{cursor:ew-resize}.react-flow__resize-control.top,.react-flow__resize-control.bottom{cursor:ns-resize}.react-flow__resize-control.top.left,.react-flow__resize-control.bottom.right{cursor:nwse-resize}.react-flow__resize-control.bottom.left,.react-flow__resize-control.top.right{cursor:nesw-resize}.react-flow__resize-control.handle{width:4px;height:4px;border:1px solid #fff;border-radius:1px;background-color:#3367d9;transform:translate(-50%,-50%)}.react-flow__resize-control.handle.left{left:0;top:50%}.react-flow__resize-control.handle.right{left:100%;top:50%}.react-flow__resize-control.handle.top{left:50%;top:0}.react-flow__resize-control.handle.bottom{left:50%;top:100%}.react-flow__resize-control.handle.top.left,.react-flow__resize-control.handle.bottom.left{left:0}.react-flow__resize-control.handle.top.right,.react-flow__resize-control.handle.bottom.right{left:100%}.react-flow__resize-control.line{border-color:#3367d9;border-width:0;border-style:solid}.react-flow__resize-control.line.left,.react-flow__resize-control.line.right{width:1px;transform:translate(-50%);top:0;height:100%}.react-flow__resize-control.line.left{left:0;border-left-width:1px}.react-flow__resize-control.line.right{left:100%;border-right-width:1px}.react-flow__resize-control.line.top,.react-flow__resize-control.line.bottom{height:1px;transform:translateY(-50%);left:0;width:100%}.react-flow__resize-control.line.top{top:0;border-top-width:1px}.react-flow__resize-control.line.bottom{border-bottom-width:1px;top:100%}:root{--ink: #171717;--text-secondary: #404040;--text-muted: #737373;--border: #d4d4d4;--surface: #ffffff;--surface-muted: #f5f5f5;--accent: #b91c1c;--accent-hover: #991b1b;--accent-soft: #fef2f2}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;font-family:Segoe UI,system-ui,sans-serif;background:var(--surface-muted)}.auth-page{min-height:100%;display:grid;grid-template-columns:minmax(360px,560px) minmax(300px,1fr);background:var(--surface-muted);color:var(--ink)}.auth-panel{padding:11vh clamp(32px,8vw,110px);background:var(--surface)}.auth-brand{color:var(--accent);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.auth-kicker{margin:92px 0 12px;color:var(--accent);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.12em}.auth-panel h1{max-width:420px;margin:0;font-family:inherit;font-size:clamp(34px,5vw,58px);font-weight:500;line-height:1.02}.auth-copy{color:var(--text-secondary);margin:18px 0 34px}.auth-tabs{display:flex;gap:24px;border-bottom:1px solid var(--border);margin-bottom:26px}.auth-tabs button{border:0;border-bottom:2px solid transparent;background:none;color:var(--text-muted);padding:0 0 12px;cursor:pointer;font-weight:700}.auth-tabs button.active{color:var(--ink);border-bottom-color:var(--accent)}.auth-form{display:grid;gap:17px;max-width:410px}.auth-form label{display:grid;gap:7px;color:var(--text-secondary);font-size:12px;font-weight:700}.auth-form input{border:1px solid var(--border);border-radius:3px;padding:13px 14px;background:var(--surface);color:var(--ink);font:inherit;outline:none}.auth-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #b91c1c1f}.auth-submit{border:0;border-radius:3px;padding:14px;background:var(--ink);color:var(--surface);cursor:pointer;font-weight:600}.auth-submit:disabled{opacity:.55;cursor:wait}.auth-error{padding:10px 12px;border-left:3px solid var(--accent);background:var(--accent-soft);color:var(--accent);font-size:13px}.auth-art{display:flex;flex-direction:column;justify-content:end;padding:11vh clamp(32px,8vw,120px);background:var(--border);background-image:none}.auth-art span{color:var(--accent);font-size:13px;font-weight:600}.auth-art strong{margin-top:20px;font-family:inherit;font-size:clamp(38px,6vw,76px);font-weight:500;line-height:.95}.auth-art p{max-width:260px;color:var(--text-secondary);line-height:1.5}.app-container{display:flex;flex-direction:column;height:100vh}.workspace-shell{display:flex;flex:1;min-height:0}.toolbar{display:flex;align-items:center;gap:8px;min-height:72px;padding:10px 14px;background:var(--ink);color:#fff;border-bottom:1px solid var(--text-secondary);overflow-x:auto;scrollbar-width:thin}.toolbar-brand{display:grid;gap:4px;min-width:150px;padding:0 10px 0 2px}.toolbar-title{color:var(--surface);font-size:14px;letter-spacing:.01em}.toolbar-group{position:relative;display:flex;align-items:center;gap:5px;min-height:50px;padding:13px 7px 5px;background:var(--ink);border:1px solid var(--text-secondary);border-radius:4px;white-space:nowrap}.toolbar-diagram-group{min-width:240px}.toolbar-ai-group{background:var(--ink);border-color:var(--text-secondary)}.toolbar-group-label{position:absolute;top:4px;left:8px;color:var(--text-muted);font-size:9px;font-weight:600;letter-spacing:.08em;line-height:1;text-transform:uppercase}.toolbar-select{width:130px;min-width:0;padding:7px 8px;border:1px solid var(--text-secondary);border-radius:5px;outline:none;background:var(--ink);color:var(--surface)}.toolbar-btn{min-height:30px;padding:6px 9px;border:1px solid var(--text-secondary);border-radius:5px;background:var(--text-secondary);color:var(--surface-muted);font-size:11px;font-weight:650;cursor:pointer;transition:background .15s ease,border-color .15s ease,transform .15s ease}.toolbar-btn:hover{background:var(--text-secondary);border-color:var(--text-muted);transform:none}.toolbar-btn-primary{background:var(--accent);border-color:var(--accent);color:var(--surface)}.toolbar-btn-primary:hover{background:var(--accent)}.toolbar-btn-ai{background:var(--accent);border-color:var(--accent)}.toolbar-btn-ai:hover{background:var(--accent)}.toolbar-btn-quiet{background:transparent;border-color:transparent;color:var(--border)}.toolbar-btn:disabled{opacity:.5;cursor:not-allowed}.toolbar-file-input{display:none}.toolbar-status{font-size:10px;color:var(--text-muted)}.toolbar-account{display:flex;align-items:center;gap:4px;margin-left:auto;padding-left:4px}.toolbar-user{max-width:110px;overflow:hidden;color:var(--surface-muted);font-size:11px;text-overflow:ellipsis;white-space:nowrap}.camera-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:20;display:grid;place-items:center;padding:24px;background:#000000a8}.camera-dialog{width:min(680px,100%);padding:18px;background:var(--surface);color:var(--ink);border-radius:4px;box-shadow:0 24px 70px #0000004d}.camera-header,.camera-actions{display:flex;align-items:center;justify-content:space-between;gap:10px}.camera-header{margin-bottom:14px}.camera-close{border:0;background:transparent;color:var(--text-secondary);font-size:24px;cursor:pointer}.camera-preview{display:block;width:100%;max-height:65vh;min-height:220px;object-fit:contain;background:var(--ink);border-radius:4px}.camera-actions{justify-content:flex-end;margin-top:14px}.camera-error{padding:10px 12px;color:var(--accent);background:var(--accent-soft)}.share-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:25;display:grid;place-items:center;padding:20px;background:#00000094}.share-dialog{width:min(520px,100%);padding:24px;border:1px solid var(--border);border-radius:4px;background:var(--surface);color:var(--ink);box-shadow:0 24px 70px #00000047}.share-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.share-header h2{margin:4px 0 0;font-family:inherit;font-size:26px;font-weight:500}.share-kicker{color:var(--accent);font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase}.share-close{border:0;background:transparent;color:var(--text-secondary);font-size:25px;cursor:pointer}.share-copy{margin:12px 0 20px;color:var(--text-secondary);font-size:13px;line-height:1.5}.share-create-row,.share-new-link{display:flex;align-items:end;gap:8px}.share-create-row label{display:grid;flex:1;gap:6px;color:var(--text-secondary);font-size:11px;font-weight:700}.share-create-row select,.share-new-link input{width:100%;padding:9px 10px;border:1px solid var(--border);border-radius:4px;background:var(--surface);color:var(--ink);font:inherit}.share-new-link{margin-top:14px;align-items:center}.share-new-link input{min-width:0;color:var(--text-secondary);font-size:11px}.share-error{margin-top:12px;padding:9px 10px;border-left:3px solid var(--accent);background:var(--accent-soft);color:var(--accent);font-size:12px}.share-list{display:grid;gap:8px;margin-top:24px;padding-top:16px;border-top:1px solid var(--surface-muted)}.share-item{display:flex;align-items:center;justify-content:space-between;padding:9px 10px;border:1px solid var(--surface-muted);border-radius:5px;background:var(--surface);font-size:12px}.share-empty{margin:0;color:var(--text-muted);font-size:12px}.version-dialog{width:min(680px,100%)}.version-create{display:flex;gap:8px;margin:18px 0}.version-create input{min-width:0;flex:1;padding:9px 10px;border:1px solid var(--border);border-radius:4px;font:inherit}.version-list{display:grid;gap:8px;max-height:48vh;overflow-y:auto}.version-item{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 12px;border:1px solid var(--surface-muted);border-radius:5px;background:var(--surface)}.version-item div{display:grid;gap:3px;min-width:0}.version-item span,.version-item small{color:var(--text-muted);font-size:11px}.app-error{background:var(--accent-soft);color:var(--accent);padding:8px 16px;font-size:14px}.app-loading{position:absolute;top:0;right:0;bottom:0;left:0;z-index:10;background:var(--surface);display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-muted)}@media(max-width:760px){.auth-page{display:block}.auth-panel{min-height:100vh;padding:36px 28px}.auth-kicker{margin-top:72px}.auth-art{display:none}.toolbar{min-height:66px;padding:8px 10px}.toolbar-brand{min-width:128px}.toolbar-account{margin-left:0}}.canvas-wrapper{position:relative;flex:1;min-width:0}.ai-assistant{width:340px;background:var(--surface-muted);border-left:1px solid var(--surface-muted);display:flex;flex-direction:column;min-height:0;box-shadow:-8px 0 24px #0000000a}.ai-assistant-header{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--surface-muted);background:var(--surface-muted)}.ai-assistant-title{font-weight:600;color:var(--accent);font-size:14px}.ai-assistant-subtitle{font-size:11px;color:var(--text-secondary);margin-top:2px}.ai-assistant-close{border:none;background:transparent;font-size:18px;cursor:pointer;color:var(--text-secondary)}.ai-assistant-actions{display:flex;flex-wrap:wrap;gap:8px;padding:12px 12px 10px;border-bottom:1px solid var(--surface-muted);background:#ffffffa6}.ai-assistant-chip{border:1px solid var(--border);background:var(--surface-muted);color:var(--accent);border-radius:4px;padding:7px 11px;font-size:11px;cursor:pointer;transition:transform .15s ease}.ai-assistant-chip:hover{transform:none}.ai-assistant-upload{display:flex;flex:1 1 100%;align-items:center;justify-content:center;min-height:38px;border-color:var(--accent);background:var(--accent);color:var(--surface);font-size:12px;font-weight:700}.ai-assistant-upload input{display:none}.ai-assistant-chat{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:10px;background:#ffffff80}.ai-message{max-width:90%;padding:10px 12px;border-radius:4px;font-size:12px;line-height:1.5;box-shadow:0 4px 16px #0000000a}.ai-message.user{background:var(--surface-muted);color:var(--text-secondary);margin-left:auto;border-bottom-right-radius:4px}.ai-message.assistant{background:var(--surface-muted);color:var(--ink);margin-right:auto;border-bottom-left-radius:4px}.ai-assistant-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--surface-muted);background:#ffffffe6}.ai-assistant-form input{flex:1;border:1px solid var(--border);border-radius:4px;padding:10px 11px;font-size:12px;background:#fff}.ai-assistant-form button{border:none;border-radius:4px;background:var(--accent);color:#fff;padding:10px 12px;cursor:pointer;font-weight:600}.ai-confirm-box{background:var(--surface-muted);border:1px solid var(--border);border-radius:4px;padding:12px;display:flex;flex-direction:column;gap:8px;font-size:12px;color:var(--ink);box-shadow:0 8px 24px #00000014}.ai-confirm-button,.ai-cancel-button{border:none;border-radius:4px;padding:8px 10px;cursor:pointer;font-weight:600}.ai-confirm-button{background:var(--surface-muted);color:#fff}.ai-assistant-mic{background:var(--surface-muted);color:var(--text-secondary);border-color:var(--border)}.ai-confirm-box{background:var(--surface);border:1px solid var(--border);border-radius:4px;padding:12px;display:flex;flex-direction:column;gap:8px;font-size:12px;color:var(--ink)}.ai-confirm-button,.ai-cancel-button{border:none;border-radius:4px;padding:8px 10px;cursor:pointer}.ai-confirm-button{background:var(--text-secondary);color:#fff}.ai-cancel-button{background:var(--surface-muted);color:var(--text-secondary)}.uml-class-node{background:#fff;border:1.5px solid var(--text-secondary);border-radius:4px;width:100%;height:100%;min-width:180px;min-height:100px;font-size:12px;box-shadow:0 2px 6px #0000001f;display:flex;flex-direction:column;overflow:hidden}.uml-class-body{flex:1;overflow-y:auto}.uml-class-header{display:flex;align-items:center;gap:4px;padding:6px 8px;border-bottom:1.5px solid var(--text-secondary);background:var(--surface-muted);border-radius:4px 4px 0 0;flex-shrink:0}.uml-kind-select{font-size:10px;border:none;background:transparent}.uml-class-name{flex:1;font-weight:700;border:none;background:transparent;font-size:13px;min-width:0}.uml-section{padding:4px 8px;border-bottom:1px solid var(--surface-muted)}.uml-section:last-child{border-bottom:none}.uml-row{display:flex;align-items:center;gap:4px;margin-bottom:2px}.uml-row select{border:none;background:transparent;width:24px}.uml-input-name{flex:1;border:none;background:transparent;min-width:0}.uml-row .uml-attribute-type{width:105px;flex:0 0 105px;color:var(--ink);font-size:12px}.uml-input-type{width:70px;border:none;background:transparent;color:var(--text-secondary)}.uml-class-node input:read-only,.uml-class-node select:disabled,.uml-class-node button:disabled{cursor:not-allowed;opacity:.7}.uml-add-btn{border:none;background:transparent;color:var(--accent);cursor:pointer;font-size:11px;padding:2px 0}.uml-icon-btn{border:none;background:transparent;cursor:pointer;color:var(--border);font-size:11px}.uml-icon-btn:hover{color:var(--accent)}.uml-handle{width:14px!important;height:14px!important;background:var(--ink);border:2px solid var(--surface);opacity:1;z-index:5}.uml-handle-source{background:var(--accent)}.uml-class-node{overflow:visible}.uml-resize-handle{box-shadow:0 0 0 1px var(--accent)}.react-flow__resize-control.line.uml-resize-border{z-index:6}.uml-handle-target.uml-handle-top,.uml-handle-target.uml-handle-bottom{left:40%}.uml-handle-source.uml-handle-top,.uml-handle-source.uml-handle-bottom{left:65%;z-index:8}.uml-handle-target.uml-handle-left,.uml-handle-target.uml-handle-right{top:40%}.uml-handle-source.uml-handle-left,.uml-handle-source.uml-handle-right{top:65%;z-index:8}.uml-edge-label{position:absolute;display:flex;gap:6px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:4px;padding:2px 6px;font-size:10px;cursor:pointer;pointer-events:all}.uml-edge-mult{color:var(--text-muted)}.uml-edge-type{font-weight:600}.relation-panel{position:absolute;top:16px;right:16px;width:240px;background:#fff;border-radius:4px;box-shadow:0 4px 16px #00000026;padding:12px;display:flex;flex-direction:column;gap:10px;z-index:10}.relation-panel-header{display:flex;justify-content:space-between;align-items:center}.relation-panel label{display:flex;flex-direction:column;font-size:12px;gap:4px;color:var(--text-secondary)}.relation-panel input,.relation-panel select{padding:6px;border-radius:4px;border:1px solid var(--border)}.uml-delete-btn{margin-top:4px;padding:6px;border:none;border-radius:4px;background:var(--accent-soft);color:var(--accent);cursor:pointer}.uml-delete-btn:hover{background:var(--accent-soft)}.backend-diagram-dialog{width:min(850px,92vw);max-height:90vh;overflow-y:auto;padding:24px}.uml-row:has(.uml-persistence-options){flex-wrap:wrap}.uml-persistence-options{flex-basis:100%;font-size:11px;color:var(--text-secondary)}.uml-persistence-options summary{cursor:pointer}.uml-persistence-options label{display:inline-flex;align-items:center;margin-right:5px}.backend-diagram-dialog select{width:100%;padding:10px;margin-top:8px}.backend-diagram-preview{max-height:40vh;overflow:auto;padding:16px;background:var(--ink);color:var(--surface-muted);border-radius:4px}body{color:var(--ink)}button,input,select,textarea{font-family:inherit}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,label:has(input[type=file]):focus-within{outline:2px solid var(--accent);outline-offset:3px}input[type=checkbox]{accent-color:var(--accent)}.toolbar{background:var(--ink);border-bottom:3px solid var(--accent)}.toolbar-group,.toolbar-ai-group{background:transparent;border-color:#404040;border-radius:4px}.toolbar-group-label,.toolbar-status,.toolbar-user{color:#d4d4d4}.toolbar-select,.toolbar-btn{background:#262626;border-color:#525252;color:var(--surface)}.toolbar-btn:hover{background:#404040;border-color:#737373}.toolbar-btn-primary,.toolbar-btn-ai,.toolbar-btn-backend{background:var(--accent);border-color:var(--accent)}.toolbar-btn-primary:hover,.toolbar-btn-ai:hover,.toolbar-btn-backend:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.toolbar-btn:disabled{color:#a3a3a3;opacity:.65;cursor:not-allowed}.auth-page{background:var(--surface);grid-template-columns:minmax(360px,560px) minmax(300px,1fr)}.auth-panel{background:var(--surface);padding-top:8vh}.auth-kicker{margin-top:64px;letter-spacing:.06em}.auth-panel h1{font-size:clamp(28px,3vw,38px);line-height:1.15;font-weight:600}.auth-submit{background:var(--accent);color:var(--surface)}.auth-submit:hover{background:var(--accent-hover)}.auth-art{background:var(--ink);background-image:none;color:var(--surface);justify-content:center}.auth-art strong{font-size:clamp(28px,3vw,40px);line-height:1.15;font-weight:600}.auth-art span{color:#fca5a5}.auth-art p{max-width:390px;color:#d4d4d4;font-size:14px}.auth-roadmap{list-style:none;padding:0;margin:32px 0 0;border-top:1px solid #404040}.auth-roadmap li{padding:16px 0;border-bottom:1px solid #404040;display:grid;gap:5px;font-size:14px}.auth-roadmap small{color:#d4d4d4;font-size:12px}.ai-assistant{background:var(--surface);box-shadow:none}.ai-assistant-header{background:var(--surface)}.ai-assistant-title{color:var(--ink);font-weight:600}.ai-assistant-chip,.ai-assistant-mic{background:var(--surface);color:var(--ink);border-color:var(--border)}.ai-assistant-chip:hover{background:var(--surface-muted)}.ai-assistant-upload,.ai-assistant-form button,.ai-confirm-button{background:var(--accent);color:var(--surface)}.ai-message{box-shadow:none;border:1px solid var(--border)}.ai-message.user{background:var(--ink);color:var(--surface)}.ai-message.assistant{background:var(--surface-muted);color:var(--ink)}.ai-confirm-box{box-shadow:none;background:var(--surface-muted)}.uml-class-node{box-shadow:0 1px 3px #00000014}.uml-class-header{background:var(--surface-muted)}.react-flow__edge-path{stroke:var(--ink)}.react-flow__node.selected .uml-class-node{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.react-flow__controls{box-shadow:0 1px 4px #0000001f}.react-flow__controls-button{background:var(--surface);color:var(--ink);border-color:var(--border)}.react-flow__controls-button:hover{background:var(--surface-muted)}.camera-dialog,.share-dialog,.relation-panel{border-radius:4px;box-shadow:0 12px 40px #00000029}.camera-dialog .toolbar-btn,.share-dialog .toolbar-btn{background:var(--surface);color:var(--ink);border-color:var(--border)}.camera-dialog .toolbar-btn:hover,.share-dialog .toolbar-btn:hover{background:var(--surface-muted)}.camera-dialog .toolbar-btn-primary{background:var(--accent);border-color:var(--accent);color:var(--surface)}.backend-diagram-dialog p{font-size:13px;line-height:1.55}.backend-diagram-dialog select{width:100%;padding:9px;border:1px solid var(--border);border-radius:4px;background:var(--surface);color:var(--ink)}.backend-diagram-dialog details{margin:16px 0;border:1px solid var(--border);border-radius:4px;padding:12px}.backend-diagram-dialog summary{cursor:pointer;font-size:13px;font-weight:600}.backend-diagram-dialog dl{display:grid;grid-template-columns:minmax(140px,1fr) 1fr;gap:10px 16px;padding:16px;background:var(--surface-muted);font-size:12px}.backend-diagram-dialog dd{margin:0}.backend-next-phase{padding:12px;border-left:3px solid var(--accent);background:var(--surface-muted)}@media(max-width:760px){.auth-page{grid-template-columns:1fr}.auth-panel{padding:40px 24px}.auth-art{display:none}.backend-diagram-dialog dl{grid-template-columns:1fr}.backend-diagram-dialog dd{margin-bottom:6px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}}.app-container{display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-rows:minmax(0,1fr)}.toolbar{grid-column:1;grid-row:1;flex-direction:column;align-items:stretch;width:260px;height:100%;overflow-x:hidden;overflow-y:auto;padding:16px;border-bottom:0;border-right:1px solid #404040;border-top:3px solid var(--accent)}.toolbar-content{display:flex;flex-direction:column;gap:16px}.toolbar-content[hidden]{display:none}.toolbar-brand{padding:8px 0 12px;min-width:0;border-bottom:1px solid #404040}.toolbar-group{display:flex;flex-direction:column;align-items:stretch;padding:12px;gap:8px;min-height:0;white-space:normal}.toolbar-diagram-group{min-width:0}.toolbar-group-label{position:static;margin-bottom:4px;font-size:10px}.toolbar-select{width:100%}.toolbar-btn{font-size:12px;text-align:left;min-height:34px}.toolbar-account{flex-wrap:wrap;margin-left:0;padding:12px 0;border-top:1px solid #404040}.toolbar-account .toolbar-btn{margin-left:auto}.toolbar-panel-toggle{text-align:center}.toolbar-collapsed{width:52px;padding:8px}.toolbar-collapsed .toolbar-panel-toggle{writing-mode:vertical-rl;padding:12px 8px;align-self:center}.workspace-shell{grid-column:2;grid-row:1;overflow:hidden}.app-error{grid-column:2;grid-row:1;align-self:start;z-index:12}.canvas-wrapper:focus{outline:none}.canvas-wrapper:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}@media(max-width:760px){.toolbar:not(.toolbar-collapsed){width:220px;padding:10px}}.toolbar-btn-admin{background:linear-gradient(135deg,#b91c1c,#991b1b)!important;color:#fff!important;font-weight:700!important;border-radius:4px!important;border:1px solid #fca5a5!important;box-shadow:0 2px 6px #b91c1c66;margin-right:6px;cursor:pointer;transition:all .2s ease}.toolbar-btn-admin:hover{background:linear-gradient(135deg,#dc2626,#b91c1c)!important;transform:translateY(-1px);box-shadow:0 4px 10px #b91c1c99}.admin-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172aa6;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:9999;display:flex;align-items:center;justify-content:center;padding:24px;animation:adminFadeIn .2s ease-out}@keyframes adminFadeIn{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}.admin-modal-card{background:#fff;width:100%;max-width:980px;max-height:90vh;border-radius:12px;box-shadow:0 25px 50px -12px #00000040,0 0 0 1px #00000014;display:flex;flex-direction:column;overflow:hidden;font-family:inherit;color:#1e293b}.admin-modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 28px;background:linear-gradient(135deg,#0f172a,#1e293b);color:#fff;border-bottom:1px solid #334155}.admin-modal-title-group{display:flex;align-items:center;gap:14px}.admin-badge-icon{font-size:28px;background:#ffffff1a;padding:8px 12px;border-radius:10px;border:1px solid rgba(255,255,255,.15)}.admin-modal-title{margin:0;font-size:20px;font-weight:700;color:#f8fafc}.admin-modal-subtitle{margin:4px 0 0;font-size:13px;color:#94a3b8}.admin-modal-subtitle strong{color:#fca5a5}.admin-modal-close-btn{background:#ffffff1a;border:none;color:#cbd5e1;font-size:18px;width:36px;height:36px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s ease}.admin-modal-close-btn:hover{background:#ef4444;color:#fff}.admin-nav-tabs{display:flex;background:#f8fafc;padding:8px 24px 0;border-bottom:1px solid #e2e8f0;gap:8px}.admin-nav-tab{background:none;border:none;padding:10px 18px;font-size:13px;font-weight:600;color:#64748b;border-bottom:2px solid transparent;cursor:pointer;transition:all .15s ease;border-radius:6px 6px 0 0}.admin-nav-tab:hover{color:#0f172a;background:#f1f5f9}.admin-nav-tab.active{color:#b91c1c;border-bottom-color:#b91c1c;background:#fff}.admin-nav-tab-refresh{margin-left:auto;color:#475569}.admin-modal-body{padding:24px 28px;overflow-y:auto;flex:1}.admin-alert{padding:12px 16px;border-radius:8px;font-size:13px;margin-bottom:20px}.admin-alert-danger{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.admin-alert-success{background:#f0fdf4;color:#166534;border:1px solid #bbf7d0}.admin-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-bottom:24px}.admin-stat-card{background:#fff;border:1px solid #e2e8f0;border-radius:10px;padding:18px;display:flex;align-items:center;gap:16px;box-shadow:0 1px 3px #0000000d;transition:transform .15s ease}.admin-stat-card:hover{transform:translateY(-2px);box-shadow:0 4px 6px -1px #0000001a}.admin-stat-icon-wrapper{font-size:24px;width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center}.user-theme{background:#eff6ff;color:#2563eb}.project-theme{background:#fdf2f8;color:#db2777}.diagram-theme{background:#f0fdf4;color:#16a34a}.class-theme{background:#fffbeb;color:#d97706}.admin-stat-label{display:block;font-size:12px;color:#64748b;font-weight:500}.admin-stat-value{font-size:24px;font-weight:700;color:#0f172a}.admin-card-section{background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;padding:20px}.admin-section-title{margin:0 0 8px;font-size:16px;font-weight:700;color:#0f172a}.admin-section-desc{margin:0 0 20px;font-size:13px;color:#64748b}.admin-status-banner{display:flex;flex-direction:column;gap:12px}.admin-status-item{display:flex;align-items:flex-start;gap:12px;background:#fff;padding:12px 16px;border-radius:8px;border:1px solid #e2e8f0}.admin-status-dot{width:10px;height:10px;border-radius:50%;margin-top:5px}.admin-status-dot.online{background:#22c55e;box-shadow:0 0 8px #22c55e}.admin-status-item strong{font-size:14px;color:#0f172a}.admin-status-item p{margin:3px 0 0;font-size:12px;color:#64748b}.admin-status-item code{background:#f1f5f9;padding:2px 6px;border-radius:4px;font-family:monospace;color:#b91c1c}.admin-table-container{border:1px solid #e2e8f0;border-radius:10px;overflow:hidden}.admin-table{width:100%;border-collapse:collapse;font-size:13px;text-align:left}.admin-table th{background:#f8fafc;padding:12px 16px;font-weight:600;color:#475569;border-bottom:1px solid #e2e8f0}.admin-table td{padding:14px 16px;border-bottom:1px solid #f1f5f9;color:#334155;vertical-align:middle}.admin-table tr:hover{background:#f8fafc}.current-user-row{background:#fef2f2!important}.admin-user-cell{display:flex;align-items:center;gap:12px}.admin-avatar{width:32px;height:32px;background:#0f172a;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700}.admin-badge-self{display:inline-block;margin-left:6px;background:#fee2e2;color:#991b1b;font-size:10px;font-weight:700;padding:2px 6px;border-radius:4px}.admin-role-badge{display:inline-block;font-size:11px;font-weight:600;padding:3px 8px;border-radius:6px}.admin-role-badge.superuser{background:#fef3c7;color:#92400e}.admin-role-badge.staff{background:#e0e7ff;color:#3730a3}.admin-role-badge.user{background:#f1f5f9;color:#475569}.admin-count-pill{display:inline-block;background:#f1f5f9;font-weight:700;padding:2px 8px;border-radius:12px;font-size:12px}.admin-action-btn.delete{background:#fee2e2;color:#991b1b;border:none;padding:6px 12px;border-radius:6px;font-size:12px;font-weight:600;cursor:pointer;transition:all .15s ease}.admin-action-btn.delete:hover{background:#ef4444;color:#fff}.admin-form-container{max-width:560px;margin:0 auto;background:#fff;padding:24px;border:1px solid #e2e8f0;border-radius:10px}.admin-form-group{margin-bottom:18px;display:flex;flex-direction:column;gap:6px}.admin-form-group label{font-size:12px;font-weight:700;color:#334155}.admin-form-group input[type=text],.admin-form-group input[type=email],.admin-form-group input[type=password]{border:1px solid #cbd5e1;border-radius:6px;padding:10px 12px;font-size:14px;outline:none;transition:border-color .15s ease}.admin-form-group input:focus{border-color:#b91c1c;box-shadow:0 0 0 3px #b91c1c1f}.admin-checkbox-label{display:flex;align-items:flex-start;gap:10px;cursor:pointer}.admin-checkbox-label input{margin-top:3px}.admin-checkbox-label span{display:flex;flex-direction:column}.admin-checkbox-label small{color:#64748b;font-size:11px}.admin-form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}.admin-btn{padding:10px 18px;border-radius:6px;font-size:13px;font-weight:600;cursor:pointer;border:none;transition:all .15s ease}.admin-btn.primary{background:#b91c1c;color:#fff}.admin-btn.primary:hover{background:#991b1b}.admin-btn.secondary{background:#f1f5f9;color:#475569}.admin-btn.secondary:hover{background:#e2e8f0}.admin-loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px;color:#64748b}.admin-spinner{width:36px;height:36px;border:3px solid #e2e8f0;border-top-color:#b91c1c;border-radius:50%;animation:adminSpin .8s linear infinite;margin-bottom:16px}@keyframes adminSpin{to{transform:rotate(360deg)}}