*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: #1a1a25;--bg-input: #0f0f18;--border: #2a2a3a;--border-focus: #6366f1;--text-primary: #e8e8f0;--text-secondary: #8888a0;--text-muted: #555568;--accent: #6366f1;--accent-hover: #818cf8;--accent-glow: rgba(99, 102, 241, .3);--success: #22c55e;--error: #ef4444;--error-bg: rgba(239, 68, 68, .1);--radius: 12px;--radius-sm: 8px;--transition: .2s ease}body{font-family:Noto Sans SC,Inter,system-ui,-apple-system,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased}#root{min-height:100vh}.app-container{max-width:1200px;margin:0 auto;padding:32px 24px;min-height:100vh;display:flex;flex-direction:column}.header{margin-bottom:32px}.header h1{font-size:28px;font-weight:700;letter-spacing:-.5px;background:linear-gradient(135deg,#e8e8f0,#6366f1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header p{color:var(--text-secondary);margin-top:6px;font-size:14px}.main-grid{display:grid;grid-template-columns:380px 1fr;gap:24px;flex:1}.sidebar{display:flex;flex-direction:column;gap:16px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.card-title{font-size:13px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:14px}.prompt-textarea{width:100%;min-height:120px;padding:14px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:inherit;font-size:14px;line-height:1.6;resize:vertical;outline:none;transition:border-color var(--transition)}.prompt-textarea::placeholder{color:var(--text-muted)}.prompt-textarea:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--accent-glow)}.file-upload{position:relative;display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--bg-input);border:1px dashed var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:border-color var(--transition)}.file-upload:hover{border-color:var(--text-muted)}.file-upload input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer}.file-upload-text{font-size:13px;color:var(--text-secondary)}.file-upload-icon{font-size:18px;color:var(--text-muted)}.btn-primary{width:100%;padding:12px 20px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);font-family:inherit;font-size:15px;font-weight:600;cursor:pointer;transition:all var(--transition);position:relative;overflow:hidden}.btn-primary:hover:not(:disabled){background:var(--accent-hover);box-shadow:0 4px 20px var(--accent-glow)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-primary.loading{background:var(--bg-card);border:1px solid var(--border)}.btn-download{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:12px 20px;background:transparent;color:var(--success);border:1px solid var(--success);border-radius:var(--radius-sm);font-family:inherit;font-size:14px;font-weight:500;text-decoration:none;cursor:pointer;transition:all var(--transition)}.btn-download:hover{background:#22c55e1a}.error-msg{padding:10px 14px;background:var(--error-bg);border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-sm);color:var(--error);font-size:13px;line-height:1.5}.viewer-container{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;position:relative;min-height:500px}.viewer-empty{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--text-muted);pointer-events:none}.viewer-empty-icon{font-size:48px;opacity:.3}.viewer-empty-text{font-size:14px}.spinner{display:inline-block;width:18px;height:18px;border:2px solid var(--text-muted);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;vertical-align:middle;margin-right:8px}.btn-new-chat{padding:8px 16px;background:transparent;color:var(--text-secondary);border:1px dashed var(--border);border-radius:var(--radius-sm);font-family:inherit;font-size:13px;cursor:pointer;transition:all var(--transition)}.btn-new-chat:hover{color:var(--text-primary);border-color:var(--text-muted);background:var(--bg-card)}.chat-history{display:flex;flex-direction:column;gap:8px;max-height:300px;overflow-y:auto;padding:4px}.chat-history::-webkit-scrollbar{width:4px}.chat-history::-webkit-scrollbar-track{background:transparent}.chat-history::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}.chat-msg{display:flex}.chat-msg-user{justify-content:flex-end}.chat-msg-assistant{justify-content:flex-start}.chat-bubble{max-width:85%;padding:8px 12px;border-radius:var(--radius-sm);font-size:13px;line-height:1.5;word-break:break-word}.chat-bubble-user{background:var(--accent);color:#fff;border-bottom-right-radius:2px}.chat-bubble-assistant{background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);border-bottom-left-radius:2px;display:flex;flex-direction:column;align-items:flex-start;gap:6px}.chat-view-btn{background:none;border:none;color:var(--accent);font-size:12px;cursor:pointer;padding:0;font-family:inherit}.chat-view-btn:hover{color:var(--accent-hover);text-decoration:underline}.tool-steps{display:flex;flex-direction:column;gap:4px;margin-bottom:2px;width:100%}.tool-step{display:flex;align-items:baseline;gap:6px;font-size:12px;line-height:1.4;flex-wrap:wrap}.tool-step-icon{flex-shrink:0;width:14px;text-align:center}.tool-step-running .tool-step-icon{color:var(--accent);animation:spin 1s linear infinite;display:inline-block}.tool-step-done .tool-step-icon{color:var(--success)}.tool-step-error .tool-step-icon{color:var(--error)}.tool-step-label{color:var(--text-secondary)}.tool-step-summary{color:var(--text-muted);font-size:11px}.tool-step-views{display:flex;gap:8px;margin-top:4px;flex-wrap:wrap;width:100%}.tool-step-view{display:flex;flex-direction:column;align-items:center;gap:2px}.tool-step-view-label{font-size:10px;color:var(--text-muted);text-transform:uppercase}.tool-step-svg{background:#fff;border-radius:4px;padding:4px;width:100px;height:100px;overflow:hidden}.tool-step-svg svg{width:100%;height:100%}.sidebar-input{margin-top:auto}@media(max-width:768px){.main-grid{grid-template-columns:1fr}.viewer-container{min-height:350px}}.project-list-page{max-width:900px;margin:0 auto;padding:32px 24px}.project-list-create{display:flex;gap:12px;margin-bottom:24px}.project-list-input{flex:1;padding:10px 14px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:inherit;font-size:14px;outline:none}.project-list-input:focus{border-color:var(--border-focus)}.project-list-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}.project-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;cursor:pointer;transition:all var(--transition)}.project-card:hover{border-color:var(--accent);box-shadow:0 2px 12px var(--accent-glow)}.project-card-name{font-size:16px;font-weight:600;margin-bottom:8px}.project-card-meta{font-size:13px;color:var(--text-secondary)}.project-card-date{font-size:12px;color:var(--text-muted);margin-top:8px}.project-list-empty{color:var(--text-muted);font-size:14px;grid-column:1 / -1;text-align:center;padding:40px}.app-workspace{height:100vh;display:flex;flex-direction:column;overflow:hidden}.app-loading{display:flex;align-items:center;justify-content:center;height:100vh;color:var(--text-muted)}.toolbar{display:flex;align-items:center;gap:12px;padding:8px 16px;background:var(--bg-secondary);border-bottom:1px solid var(--border);min-height:48px}.toolbar-btn{padding:6px 12px;background:transparent;color:var(--text-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);font-family:inherit;font-size:13px;cursor:pointer;transition:all var(--transition);white-space:nowrap}.toolbar-btn:hover{color:var(--text-primary);border-color:var(--text-muted)}.toolbar-btn-accent{color:var(--accent);border-color:var(--accent)}.toolbar-btn-accent:hover{background:var(--accent-glow);color:var(--accent-hover)}.toolbar-btn-accent:disabled{opacity:.5;cursor:not-allowed}.toolbar-project-name{font-size:14px;font-weight:600;color:var(--text-primary)}.toolbar-spacer{flex:1}.toolbar-inline-form{display:flex;gap:8px;align-items:center}.toolbar-input{padding:6px 10px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:inherit;font-size:13px;outline:none;width:180px}.toolbar-input:focus{border-color:var(--border-focus)}.workspace-panels{display:flex;flex:1;overflow:hidden}.left-panel{width:220px;min-width:220px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto}.center-panel{flex:1;overflow:hidden}.center-panel .viewer-container{height:100%;min-height:0;border-radius:0;border:none;border-left:1px solid var(--border);border-right:1px solid var(--border)}.right-panel{width:300px;min-width:300px;background:var(--bg-secondary);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.panel-header{padding:12px 16px;font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border)}.panel-empty{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-muted);font-size:13px}.panel-tabs{display:flex;border-bottom:1px solid var(--border)}.panel-tab{flex:1;padding:10px 16px;background:none;border:none;color:var(--text-muted);font-family:inherit;font-size:13px;cursor:pointer;border-bottom:2px solid transparent;transition:all var(--transition)}.panel-tab:hover{color:var(--text-secondary)}.panel-tab-active{color:var(--accent);border-bottom-color:var(--accent)}.panel-content,.part-list{flex:1;overflow-y:auto}.part-item{display:flex;align-items:center;gap:8px;padding:8px 16px;cursor:pointer;transition:background var(--transition);font-size:13px}.part-item:hover{background:var(--bg-card)}.part-item-active{background:var(--bg-card);border-left:2px solid var(--accent)}.part-status{width:8px;height:8px;border-radius:50%;flex-shrink:0}.part-status-draft{background:var(--text-muted)}.part-status-compiled{background:var(--success)}.part-status-error{background:var(--error)}.part-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.part-delete{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:16px;padding:0 4px;opacity:0;transition:opacity var(--transition)}.part-item:hover .part-delete{opacity:1}.part-delete:hover{color:var(--error)}.part-list-empty{padding:20px 16px;color:var(--text-muted);font-size:12px;text-align:center}.feature-tree-panel{padding:12px;display:flex;flex-direction:column;gap:8px}.feature-list{display:flex;flex-direction:column;gap:2px}.feature-item{display:flex;align-items:center;gap:8px;padding:6px 10px;border-radius:var(--radius-sm);cursor:pointer;font-size:13px;transition:background var(--transition)}.feature-item:hover{background:var(--bg-card)}.feature-item-active{background:var(--bg-card);outline:1px solid var(--accent)}.feature-type-badge{font-size:11px;color:var(--accent);background:#6366f11a;padding:2px 6px;border-radius:4px;white-space:nowrap}.feature-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-secondary)}.feature-delete{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:14px;padding:0 2px;opacity:0;transition:opacity var(--transition)}.feature-item:hover .feature-delete{opacity:1}.feature-delete:hover{color:var(--error)}.feature-list-empty{padding:16px;color:var(--text-muted);font-size:12px;text-align:center}.feature-error{padding:8px 10px;background:var(--error-bg);border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-sm);color:var(--error);font-size:12px;line-height:1.4;word-break:break-word}.btn-add-feature{padding:8px;background:transparent;color:var(--accent);border:1px dashed var(--accent);border-radius:var(--radius-sm);font-family:inherit;font-size:13px;cursor:pointer;transition:all var(--transition)}.btn-add-feature:hover:not(:disabled){background:#6366f11a}.btn-add-feature:disabled{opacity:.5;cursor:not-allowed}.feature-add-menu{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px;display:flex;flex-direction:column;gap:2px}.feature-add-title{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;padding:4px 8px;margin-bottom:4px}.feature-add-option{padding:6px 10px;background:none;border:none;color:var(--text-secondary);font-family:inherit;font-size:13px;cursor:pointer;border-radius:4px;text-align:left;transition:background var(--transition)}.feature-add-option:hover{background:var(--bg-input);color:var(--text-primary)}.feature-add-cancel{padding:4px 8px;background:none;border:none;color:var(--text-muted);font-family:inherit;font-size:12px;cursor:pointer;text-align:center;margin-top:4px}.feature-editor{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px;display:flex;flex-direction:column;gap:10px}.feature-editor-title{font-size:12px;font-weight:600;color:var(--text-secondary);border-bottom:1px solid var(--border);padding-bottom:8px}.param-field{display:flex;flex-direction:column;gap:4px}.param-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.param-input{padding:6px 10px;background:var(--bg-input);border:1px solid var(--border);border-radius:4px;color:var(--text-primary);font-family:inherit;font-size:13px;outline:none}.param-input:focus{border-color:var(--border-focus)}.properties-panel{padding:12px;display:flex;flex-direction:column;gap:16px}.prop-section{display:flex;flex-direction:column;gap:8px}.prop-section-title{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.prop-row{display:flex;justify-content:space-between;align-items:center;font-size:13px}.prop-label{color:var(--text-muted)}.prop-value{color:var(--text-primary)}.prop-status-compiled{color:var(--success)}.prop-status-error{color:var(--error)}.prop-status-draft{color:var(--text-muted)}.prop-error{font-size:12px;color:var(--error);background:var(--error-bg);padding:6px 8px;border-radius:4px}.version-list{display:flex;flex-direction:column;gap:4px;max-height:200px;overflow-y:auto}.version-item{display:flex;align-items:center;gap:8px;padding:4px 8px;font-size:12px;border-radius:4px}.version-item:hover{background:var(--bg-card)}.version-num{color:var(--accent);font-weight:600;min-width:32px}.version-desc{flex:1;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.version-restore-btn{padding:2px 8px;background:none;border:1px solid var(--border);border-radius:4px;color:var(--text-muted);font-family:inherit;font-size:11px;cursor:pointer;transition:all var(--transition)}.version-restore-btn:hover:not(:disabled){color:var(--accent);border-color:var(--accent)}.version-restore-btn:disabled{opacity:.5;cursor:not-allowed}.ai-chat-panel{display:flex;flex-direction:column;height:100%}.chat-messages{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:8px}.chat-empty{color:var(--text-muted);font-size:13px;text-align:center;padding:32px 16px}.chat-msg-user{display:flex;flex-direction:column;gap:2px;background:#6366f114;border-radius:var(--radius-sm);padding:8px 10px}.chat-role{font-size:10px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.chat-text{font-size:13px;color:var(--text-primary);line-height:1.5}.chat-msg-tool{display:flex;align-items:center;gap:6px;padding:4px 10px;font-size:12px;color:var(--text-secondary)}.chat-msg-tool .tool-icon{font-size:12px;width:16px;text-align:center}.chat-msg-tool .tool-label{font-weight:500}.chat-msg-tool .tool-summary{color:var(--text-muted);margin-left:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-msg-tool-error{color:var(--error)}.chat-msg-assistant{display:flex;flex-direction:column;gap:2px;background:#22c55e14;border-radius:var(--radius-sm);padding:8px 10px}.chat-msg-generating{display:flex;align-items:center;gap:8px;padding:8px 10px;color:var(--accent);font-size:13px}.generating-spinner{width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.chat-form{border-top:1px solid var(--border);padding:12px;display:flex;flex-direction:column;gap:8px}.chat-input-row{display:flex;gap:8px}.chat-input{flex:1;padding:8px 12px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:inherit;font-size:13px;outline:none}.chat-input:focus{border-color:var(--border-focus)}.chat-submit-btn{padding:8px 16px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);font-family:inherit;font-size:13px;cursor:pointer;white-space:nowrap;transition:opacity var(--transition)}.chat-submit-btn:disabled{opacity:.5;cursor:not-allowed}.chat-file-row{justify-content:flex-start}.chat-file-label{font-size:12px;color:var(--text-muted);cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-file-input{display:none}.right-panel .panel-content{display:flex;flex-direction:column}.right-panel .panel-content .ai-chat-panel{flex:1;min-height:0}.btn-download{display:inline-block;padding:8px 12px;background:var(--accent);color:#fff;text-decoration:none;border-radius:var(--radius-sm);font-size:13px;text-align:center;transition:opacity var(--transition)}.btn-download:hover{opacity:.9}.toolbar-history-btns{display:flex;gap:2px}.toolbar-btn-icon{font-size:16px;padding:6px 10px;min-width:unset}.assembly-icon{font-size:14px;margin-right:6px;opacity:.7}.assembly-panel{display:flex;flex-direction:column;gap:12px;padding:12px}.assembly-panel-header{display:flex;justify-content:space-between;align-items:center}.assembly-panel-header h3{font-size:15px;font-weight:600;color:var(--text-primary)}.assembly-component-count{font-size:12px;color:var(--text-secondary)}.assembly-add-component{display:flex;gap:8px}.assembly-select{flex:1;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);padding:6px 10px;font-size:13px}.assembly-select:focus{border-color:var(--border-focus);outline:none}.assembly-component-list{display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto}.assembly-component-item{display:flex;align-items:center;gap:8px;padding:8px 10px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px}.component-label{flex:1;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.component-pos{font-size:11px;color:var(--text-muted);font-family:monospace}.assembly-build-btn{width:100%;padding:10px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;transition:background var(--transition)}.assembly-build-btn:hover:not(:disabled){background:var(--accent-hover)}.assembly-build-btn:disabled{opacity:.5;cursor:not-allowed}