:root{--bg-app: #161618;--bg-bar: #1c1c1f;--bg-panel: #202023;--bg-panel-alt: #242428;--bg-hover: #2a2a2f;--bg-active: #1a3050;--border: #2e2e33;--border-strong: #404048;--text-primary: #d4d4d8;--text-secondary: #b0b0b8;--text-muted: #7a7a86;--text-label: #a0a0ac;--accent: #3b82f6;--accent-dim: #1d4ed8;--accent-cyan: #22d3ee;--amber: #f59e0b;--red: #ef4444;--green: #22c55e;--font-ui: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;--font-mono: "Consolas", "JetBrains Mono", "SF Mono", monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;overflow:hidden}body{background:var(--bg-app);color:var(--text-primary);font-family:var(--font-ui);font-size:12px;line-height:1.4;-webkit-user-select:none;user-select:none;-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;height:100vh;background:var(--bg-app)}.workspace{display:flex;flex:1;min-height:0;overflow:hidden}.menubar{display:flex;align-items:center;height:24px;background:var(--bg-bar);border-bottom:1px solid var(--border);padding:0 8px;position:relative;z-index:100;flex-shrink:0}.menubar__items{display:flex;gap:2px}.menubar__item{position:relative}.menubar__btn{background:none;border:none;color:var(--text-primary);font-family:var(--font-ui);font-size:12px;padding:2px 8px;cursor:pointer;border-radius:2px}.menubar__btn:hover,.menubar__btn--open{background:var(--bg-hover)}.menubar__dropdown{position:absolute;top:100%;left:0;background:var(--bg-panel-alt);border:1px solid var(--border-strong);min-width:180px;z-index:200;box-shadow:0 8px 24px #0009}.menubar__dd-item{display:flex;align-items:center;justify-content:space-between;padding:5px 12px;color:var(--text-primary);font-size:12px;cursor:pointer;white-space:nowrap}.menubar__dd-item:hover{background:var(--bg-hover);color:#fff}.menubar__dd-separator{height:1px;background:var(--border);margin:2px 0}.menubar__dd-shortcut{color:var(--text-muted);font-size:11px;margin-left:24px;font-family:var(--font-mono)}.menubar__recent-popover{position:absolute;top:24px;left:0;background:var(--bg-panel-alt);border:1px solid var(--border-strong);min-width:280px;max-width:400px;z-index:200;box-shadow:0 8px 24px #0009}.menubar__recent-header{padding:6px 12px;font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);border-bottom:1px solid var(--border)}.menubar__recent-empty{padding:12px;color:var(--text-muted);font-size:11px;font-style:italic}.toolbar{display:flex;align-items:center;height:34px;background:var(--bg-bar);border-bottom:1px solid var(--border);padding:0 8px;gap:2px;flex-shrink:0}.toolbar__separator{width:1px;height:18px;background:var(--border-strong);margin:0 4px}.toolbar__btn{display:flex;align-items:center;gap:5px;background:none;border:1px solid transparent;border-radius:2px;color:var(--text-secondary);font-family:var(--font-ui);font-size:11px;padding:3px 7px;cursor:pointer;height:26px;transition:background .08s,color .08s,border-color .08s}.toolbar__btn:hover{background:var(--bg-hover);color:var(--text-primary);border-color:var(--border)}.toolbar__btn--active{background:var(--bg-active);color:var(--accent);border-color:var(--accent-dim)}.toolbar__btn--active:hover{background:var(--bg-active);color:var(--accent)}.toolbar__btn--disabled{opacity:.4;cursor:default}.palette{width:188px;flex-shrink:0;background:var(--bg-panel);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.palette__header{padding:8px 10px 6px;font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);border-bottom:1px solid var(--border);flex-shrink:0}.palette__search{padding:6px 8px;border-bottom:1px solid var(--border);flex-shrink:0}.palette__search input{width:100%;background:var(--bg-app);border:1px solid var(--border-strong);border-radius:2px;color:var(--text-primary);font-family:var(--font-ui);font-size:11px;padding:3px 6px;outline:none}.palette__search input:focus{border-color:var(--accent-dim)}.palette__search input::placeholder{color:var(--text-muted)}.palette__scroll{flex:1;overflow-y:auto;overflow-x:hidden}.palette__scroll::-webkit-scrollbar{width:4px}.palette__scroll::-webkit-scrollbar-track{background:transparent}.palette__scroll::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:2px}.palette__category{border-bottom:1px solid var(--border)}.palette__cat-header{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;font-size:10px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--text-muted);cursor:pointer;background:var(--bg-panel-alt)}.palette__cat-header:hover{color:var(--text-label)}.palette__cat-toggle{color:var(--text-muted);font-size:9px}.palette__symbols{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);padding:0}.palette__symbol{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:8px 4px 6px;background:var(--bg-panel);cursor:grab;transition:background .08s}.palette__symbol:hover{background:var(--bg-hover)}.palette__symbol--active{background:var(--bg-active)}.palette__symbol-label{font-size:9px;color:var(--text-muted);text-align:center;line-height:1.2;font-family:var(--font-ui)}.palette__symbol--active .palette__symbol-label{color:var(--accent)}.canvas-paper{--text-muted: #1a1a2e}.canvas-container{flex:1;width:100%;height:100%;position:relative;overflow:hidden;background:#111113}.canvas-container--crosshair{cursor:crosshair}.canvas-container--delete{cursor:cell}.canvas-container__ai-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0000008c;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:none;z-index:10}.canvas-container__ai-shimmer{position:absolute;top:0;left:0;width:100%;height:2px;background:linear-gradient(90deg,transparent,rgba(99,102,241,.6),rgba(139,92,246,.6),transparent);background-size:200% 100%;animation:chatShimmer 1.5s linear infinite}.canvas-container__ai-label{color:#b0b0b8;font-size:14px;font-weight:500;letter-spacing:.04em}.workspace__resize-handle{width:4px;background:var(--border);cursor:col-resize;flex-shrink:0;transition:background .1s}.workspace__resize-handle:hover,.workspace__resize-handle[data-resize-handle-active]{background:var(--accent-dim)}.right-sidebar{background:var(--bg-panel);border-left:1px solid var(--border)}.right-sidebar__resize-handle{height:4px;background:var(--border);cursor:row-resize;flex-shrink:0;transition:background .1s}.right-sidebar__resize-handle:hover,.right-sidebar__resize-handle[data-resize-handle-active]{background:var(--accent-dim)}.chat-panel{height:100%;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-panel)}.chat-panel__header{padding:8px 12px 7px;font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);border-bottom:1px solid var(--border);flex-shrink:0}.chat-panel__messages{flex:1;overflow-y:auto;padding:8px;display:flex;flex-direction:column;gap:6px}.chat-panel__empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-label);font-size:12px;gap:8px;padding:24px;text-align:center}.chat-panel__message{padding:8px 12px;font-size:12px;line-height:1.6;word-wrap:break-word;white-space:pre-wrap}.chat-panel__message--user{background:#1e1e24;color:var(--text-primary)}.chat-panel__message--ai{color:var(--text-secondary);white-space:normal}.chat-panel__message--ai p{margin:0 0 6px}.chat-panel__message--ai p:last-child{margin-bottom:0}.chat-panel__message--ai strong{color:var(--text-primary)}.chat-panel__message--ai ul,.chat-panel__message--ai ol{margin:4px 0;padding-left:18px}.chat-panel__message--ai li{margin:2px 0}.chat-panel__message--ai code{background:#1e1e24;padding:1px 4px;border-radius:3px;font-size:11px}.chat-panel__message--error{border-color:var(--red);color:#f87171}.chat-panel__token-badge{display:inline-block;margin-top:6px;padding:2px 6px;font-size:10px;font-family:SF Mono,Fira Code,monospace;color:var(--text-muted);background:#1e1e24;border-radius:3px}.chat-panel__turns{margin-top:6px;font-size:11px}.chat-panel__turns-summary{cursor:pointer;color:var(--text-muted);font-size:10px;-webkit-user-select:none;user-select:none}.chat-panel__turns-summary:hover{color:var(--text-secondary)}.chat-panel__turns-list{margin-top:4px;padding-left:8px;border-left:1px solid #333}.chat-panel__turn{margin-bottom:8px}.chat-panel__turn-header{font-weight:600;font-size:10px;color:var(--text-secondary);display:flex;justify-content:space-between;align-items:baseline}.chat-panel__turn-tokens{font-weight:400;font-family:SF Mono,Fira Code,monospace;font-size:9px;color:var(--text-muted)}.chat-panel__turn-reasoning{margin:2px 0;color:var(--text-muted);font-size:10px;white-space:pre-wrap;max-height:80px;overflow-y:auto}.chat-panel__turn-tool{font-size:10px;font-family:SF Mono,Fira Code,monospace;color:var(--text-muted);margin:2px 0;word-break:break-all}.chat-panel__turn-tool-name{color:#7dd3fc;font-weight:600}.chat-panel__turn-tool-result{color:#86efac}.chat-panel__thinking{display:flex;flex-direction:column;align-items:center;padding:12px 10px;gap:8px}.chat-panel__shimmer{height:2px;width:60%;border-radius:1px;background:linear-gradient(90deg,transparent,rgba(99,102,241,.4),rgba(139,92,246,.4),transparent);background-size:200% 100%;animation:chatShimmer 1.5s linear infinite}.chat-panel__thinking-status{color:var(--text-label);font-size:11px}@keyframes chatShimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.chat-panel__input-row{display:flex;gap:4px;padding:8px;border-top:1px solid var(--border);flex-shrink:0}.chat-panel__input-wrap{flex:1;position:relative;min-height:32px;background:#161618;border:1px solid #333338;border-radius:4px;overflow:hidden}.chat-panel__input-wrap:focus-within{border-color:#525258}.chat-panel__input-highlight,.chat-panel__input{font-family:var(--font-ui);font-size:11px;line-height:22px;padding:5px 8px}.chat-panel__input-highlight{position:absolute;top:0;right:0;bottom:0;left:0;color:var(--text-primary);white-space:pre;overflow:hidden;pointer-events:none}.chat-panel__input-tag{color:var(--accent)}.chat-panel__input{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;background:transparent;border:none;color:transparent;caret-color:var(--text-primary);outline:none}.chat-panel__input::selection{background:#3b82f659;color:transparent}.chat-panel__input::placeholder{color:var(--text-muted)}.chat-panel__input:disabled{opacity:.4;cursor:not-allowed}.chat-panel__send{background:var(--accent);border:none;border-radius:4px;color:#fff;font-size:13px;width:28px;cursor:pointer;display:flex;align-items:center;justify-content:center}.chat-panel__send:disabled{opacity:.3;cursor:not-allowed}.chat-panel__review-bar{display:flex;align-items:center;gap:8px;padding:6px 10px;height:44px;background:#1e1e22;border-top:1px solid #2a2a2e}.chat-panel__review-hint{color:var(--text-muted);font-size:10px;margin-left:auto}.btn--accept{padding:3px 12px;height:28px;font-size:11px;background:#22c55e1f;color:#22c55e;border:none;border-radius:4px;cursor:pointer}.btn--accept:hover{background:#22c55e33}.btn--reject{padding:3px 12px;height:28px;font-size:11px;background:#ef44441f;color:#ef4444;border:none;border-radius:4px;cursor:pointer}.btn--reject:hover{background:#ef444433}.context-menu{position:fixed;z-index:1000;min-width:120px;background:var(--bg-surface);border:1px solid var(--border);border-radius:4px;box-shadow:0 4px 12px #0006;padding:3px 0}.context-menu__item{display:block;width:100%;padding:5px 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var(--border);flex-shrink:0;display:flex;align-items:center;justify-content:space-between}.properties__scroll{flex:1;overflow-y:auto;padding:0}.properties__scroll::-webkit-scrollbar{width:4px}.properties__scroll::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:2px}.properties__empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-muted);font-size:11px;gap:6px;padding:24px;text-align:center}.properties__section{border-top:1px solid var(--border);padding:10px 12px}.properties__section:first-child{border-top:none}.properties__section-title{font-size:9px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#888890;margin-bottom:8px}.properties__row{display:flex;align-items:baseline;gap:8px;padding:2px 0;font-size:11px}.properties__label{flex-shrink:0;min-width:60px;color:var(--text-label);font-size:10px;font-weight:500}.properties__value{color:var(--text-primary);font-family:var(--font-mono);font-size:11px;word-break:break-all}.properties__input{flex:1;min-width:0;height:24px;background:#1a1a1e;border:1px solid #2a2a2e;border-radius:2px;color:var(--text-primary);font-family:var(--font-mono);font-size:11px;padding:1px 6px;outline:none}.properties__input:hover{border-color:#3a3a3e}.properties__input:focus{border-color:#525258}.properties__unit{flex-shrink:0;color:var(--text-muted);font-size:10px}.properties__ref-buttons{display:flex;gap:6px;padding:6px 10px;border-bottom:1px solid var(--border)}.properties__ref-btn{flex:1;padding:4px 8px;font-size:11px;font-family:var(--font-ui);color:var(--text-primary);background:var(--bg-bar);border:1px solid var(--border);border-radius:3px;cursor:pointer;white-space:nowrap}.properties__ref-btn:hover:not(:disabled){background:var(--bg-panel);border-color:var(--accent)}.properties__ref-btn:disabled{opacity:.4;cursor:default}.properties__link-picker{background:#3b82f60d;border:1px solid rgba(59,130,246,.2);border-radius:3px;margin:6px 10px;padding:8px}.properties__link-select{flex:1;min-width:0;padding:3px 6px;font-size:11px;font-family:var(--font-ui);color:var(--text-primary);background:var(--bg-app);border:1px solid var(--border);border-radius:3px}.properties__link-confirm{flex:1;padding:4px 8px;font-size:11px;font-family:var(--font-ui);color:#fff;background:var(--accent);border:1px solid var(--accent);border-radius:3px;cursor:pointer}.properties__link-confirm:disabled{opacity:.4;cursor:default}.properties__link-cancel{flex:1;padding:4px 8px;font-size:11px;font-family:var(--font-ui);color:var(--text-primary);background:var(--bg-bar);border:1px solid var(--border);border-radius:3px;cursor:pointer}.properties__link-status{flex:1;min-width:0;font-size:10px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.properties__link-unlink{flex-shrink:0;padding:2px 6px;font-size:10px;font-family:var(--font-ui);color:var(--text-muted);background:transparent;border:1px solid var(--border);border-radius:2px;cursor:pointer}.properties__link-unlink:hover{color:#ef4444;border-color:#ef4444}.statusbar{display:flex;align-items:center;height:22px;background:var(--bg-bar);border-top:1px solid var(--border);padding:0 10px;gap:0;flex-shrink:0;font-size:11px}.statusbar__item{display:flex;align-items:center;gap:4px;color:var(--text-muted);padding:0 10px;border-right:1px solid var(--border);height:100%}.statusbar__item:first-child{padding-left:0}.statusbar__item--accent{color:var(--text-secondary)}.statusbar__value{font-family:var(--font-mono);color:var(--text-secondary)}.statusbar__file{color:var(--text-label);font-family:var(--font-mono);font-size:11px}.statusbar__spacer{flex:1}.toast{position:fixed;bottom:36px;left:50%;transform:translate(-50%);background:#1a3d1a;border:1px solid #2d6b2d;color:var(--green);font-size:12px;font-family:var(--font-mono);padding:7px 16px;z-index:1000;border-radius:2px;box-shadow:0 4px 16px #00000080;animation:toast-in .15s ease}@keyframes toast-in{0%{opacity:0;transform:translate(-50%) translateY(6px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.welcome{flex:1;display:flex;align-items:center;justify-content:center;background:var(--bg-app)}.welcome__content{display:flex;flex-direction:column;align-items:center;gap:28px;max-width:420px;width:100%}.welcome__brand{text-align:center}.welcome__title{font-size:28px;font-weight:600;color:var(--text-primary);letter-spacing:.04em}.welcome__subtitle{font-size:12px;color:var(--text-muted);letter-spacing:.06em;text-transform:uppercase;margin-top:4px}.welcome__open-btn{background:var(--accent);border:none;border-radius:3px;color:#fff;font-family:var(--font-ui);font-size:13px;font-weight:500;padding:8px 28px;cursor:pointer;transition:background .1s}.welcome__open-btn:hover{background:var(--accent-dim)}.welcome__error{color:var(--red);font-size:11px;text-align:center;padding:6px 12px;background:#ef44441a;border:1px solid rgba(239,68,68,.25);border-radius:3px;width:100%}.welcome__recent{width:100%}.welcome__recent-title{font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin-bottom:8px}.welcome__recent-empty{color:var(--text-muted);font-size:11px;font-style:italic}.welcome__recent-list{display:flex;flex-direction:column;gap:1px;background:var(--border);border:1px solid var(--border);border-radius:3px;overflow:hidden}.welcome__recent-item{display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto;gap:0 12px;padding:8px 12px;background:var(--bg-panel);cursor:pointer;transition:background .08s}.welcome__recent-item:hover{background:var(--bg-hover)}.welcome__recent-name{font-size:12px;color:var(--text-primary);font-weight:500;grid-column:1}.welcome__recent-date{font-size:10px;color:var(--text-muted);grid-column:2;grid-row:1 / 3;align-self:center;font-family:var(--font-mono)}.welcome__recent-dir{font-size:10px;color:var(--text-muted);grid-column:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:3px}.canvas-error{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:8px;color:var(--red)}.canvas-error__title{font-size:13px;font-weight:600;color:var(--red)}.canvas-error__message{font-size:11px;color:var(--text-muted);white-space:pre-wrap}.canvas-error__hint{font-size:11px;color:var(--text-muted)}