:root{--sans:system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--bg-app:#f1f5f9;--panel-bg:#fff;--panel-border:#e2e8f0;--text:#1e293b;--text-muted:#64748b;--topbar-bg:#fff;--btn-bg:#f8fafc;--btn-border:#e2e8f0;--btn-hover:#eef2f7;--item-bg:#fff;--item-hover:#f1f5f9;--accent:#7c3aed;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--bg-app:#0f172a;--panel-bg:#1e293b;--panel-border:#334155;--text:#e2e8f0;--text-muted:#94a3b8;--topbar-bg:#1e293b;--btn-bg:#273449;--btn-border:#3b4a63;--btn-hover:#334155;--item-bg:#233045;--item-hover:#2c3b54;--accent:#a78bfa;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body,#root{overscroll-behavior:none;height:100%;margin:0}body{font-family:var(--sans);color:var(--text);background:var(--bg-app);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow:hidden}.app{flex-direction:column;height:100svh;display:flex;overflow:hidden}.app__body{flex:1;min-height:0;display:flex}.topbar{background:var(--topbar-bg);border-bottom:1px solid var(--panel-border);flex-shrink:0;justify-content:space-between;align-items:center;gap:16px;height:52px;padding:0 16px;display:flex}.topbar__brand{align-items:center;gap:8px;font-size:15px;font-weight:600;display:flex}.topbar__logo{color:var(--accent);font-size:18px;line-height:1}.topbar__actions{align-items:center;gap:6px;display:flex}.topbar__btn{font:inherit;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--text);cursor:pointer;touch-action:manipulation;border-radius:6px;padding:6px 12px;font-size:13px;transition:background .15s,border-color .15s}.topbar__btn:hover:not(:disabled){background:var(--btn-hover)}.topbar__btn:disabled{opacity:.45;cursor:not-allowed}.topbar__theme{margin-left:4px;font-weight:500}.topbar__status{color:var(--text-muted);text-align:right;min-width:72px;margin-right:2px;font-size:12px}.diagram-menu{margin-left:10px;position:relative}.diagram-menu__current{max-width:240px;font:inherit;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--text);cursor:pointer;border-radius:6px;align-items:center;gap:6px;padding:5px 10px;font-size:13px;font-weight:500;display:flex}.diagram-menu__current:hover{background:var(--btn-hover)}.diagram-menu__name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.diagram-menu__caret{color:var(--text-muted);font-size:10px}.diagram-menu__dropdown{z-index:20;border:1px solid var(--panel-border);background:var(--panel-bg);border-radius:10px;width:260px;padding:6px;position:absolute;top:calc(100% + 6px);left:0;box-shadow:0 10px 30px #0000002e}.diagram-menu__list{max-height:320px;margin:0;padding:0;list-style:none;overflow-y:auto}.diagram-menu__item{border-radius:6px;align-items:center;gap:4px;padding:1px 2px;display:flex}.diagram-menu__item.is-current{background:var(--item-hover)}.diagram-menu__select{text-align:left;min-width:0;font:inherit;color:var(--text);cursor:pointer;text-overflow:ellipsis;white-space:nowrap;background:0 0;border:none;border-radius:6px;flex:1;padding:6px 8px;font-size:13px;overflow:hidden}.diagram-menu__select:hover{background:var(--btn-hover)}.diagram-menu__rename{min-width:0;font:inherit;border:1px solid var(--accent);background:var(--btn-bg);color:var(--text);border-radius:6px;flex:1;padding:5px 7px;font-size:13px}.diagram-menu__actions{flex-shrink:0;gap:2px;display:flex}.diagram-menu__icon{font:inherit;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:5px 6px;font-size:13px;line-height:1}.diagram-menu__icon:hover{background:var(--btn-hover);color:var(--text)}.diagram-menu__icon--danger:hover{color:#ef4444;background:#ef44441f}.diagram-menu__new{width:100%;font:inherit;text-align:left;border:none;border-top:1px solid var(--panel-border);color:var(--accent);cursor:pointer;background:0 0;border-radius:0 0 6px 6px;margin-top:6px;padding:8px;font-size:13px}.diagram-menu__new:hover{background:var(--btn-hover)}.topbar__export,.topbar__more{position:relative}.topbar__menu-row{padding:8px 10px}.topbar__menu{z-index:20;border:1px solid var(--panel-border);background:var(--panel-bg);border-radius:10px;min-width:160px;padding:6px;position:absolute;top:calc(100% + 6px);right:0;box-shadow:0 10px 30px #0000002e}.topbar__menu-item{text-align:left;width:100%;font:inherit;color:var(--text);cursor:pointer;touch-action:manipulation;background:0 0;border:none;border-radius:6px;padding:8px 10px;font-size:13px;display:block}.topbar__menu-item:hover{background:var(--btn-hover)}.topbar__menu-item:disabled{opacity:.4;cursor:default}.topbar__menu-item:disabled:hover{background:0 0}.topbar__menu-sep{background:var(--panel-border);height:1px;margin:6px 4px}.topbar__menu-switch{color:var(--text);justify-content:space-between;align-items:center;gap:10px;padding:8px 10px;font-size:13px;display:flex}.switch{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:6px;display:inline-flex}.switch__label{color:var(--text);white-space:nowrap;font-size:12px}.switch__track{border:1px solid var(--btn-border);background:var(--btn-bg);cursor:pointer;border-radius:999px;flex-shrink:0;width:38px;height:22px;padding:0;transition:background .15s,border-color .15s;position:relative}.switch__track.is-on{background:var(--accent);border-color:var(--accent)}.switch__thumb{background:#fff;border-radius:50%;width:16px;height:16px;transition:transform .15s;position:absolute;top:2px;left:2px;box-shadow:0 1px 2px #0000004d}.switch__track.is-on .switch__thumb{transform:translate(16px)}@media (width<=768px){.topbar__menu{z-index:100;min-width:220px;max-width:calc(100vw - 16px);max-height:calc(100vh - 64px);position:fixed;top:54px;left:auto;right:8px;overflow-y:auto}.topbar__menu-item{padding:11px 12px;font-size:14px}}.sidebar{background:var(--panel-bg);border-right:1px solid var(--panel-border);flex-shrink:0;width:220px;padding:14px 12px;overflow-y:auto}.sidebar__title{margin:0 0 2px;font-size:14px;font-weight:600}.sidebar__title--spaced{margin-top:18px}.sidebar__hint{color:var(--text-muted);margin:0 0 12px;font-size:12px}.sidebar__grid{grid-template-columns:repeat(2,1fr);gap:8px;display:grid}.shape-item{border:1px solid var(--panel-border);background:var(--item-bg);cursor:grab;-webkit-user-select:none;user-select:none;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:10px 6px;transition:background .15s,border-color .15s,transform 50ms;display:flex}.shape-item:hover{background:var(--item-hover);border-color:var(--accent)}.shape-item:active{cursor:grabbing;transform:scale(.97)}.shape-item--text{flex-direction:row;justify-content:flex-start;gap:10px;padding:10px 12px}.shape-item__preview{justify-content:center;align-items:center;height:42px;display:flex}.shape-item__preview--text{width:26px;height:auto;color:var(--text);font-size:22px;font-weight:700}.shape-item__label{text-align:center;color:var(--text-muted);font-size:11px;line-height:1.2}.canvas{flex:1;min-width:0;position:relative}.shape-node{justify-content:center;align-items:center;display:flex;position:relative}.shape-node--selected{filter:drop-shadow(0 0 0 2px var(--accent))}.text-node{border-radius:4px;align-items:center;display:flex;position:relative}.text-node--selected{outline:2px solid var(--accent);outline-offset:2px}.node-text{white-space:pre-wrap;word-break:break-word;align-items:center;padding:6px;line-height:1.25;display:flex;position:absolute;inset:0;overflow:hidden}.node-text__placeholder{color:var(--text-muted);opacity:.7}.node-text--edit{cursor:text;box-shadow:inset 0 0 0 1px var(--accent);background:#7f7f7f14;border-radius:3px;outline:none}.react-flow__handle.shape-handle{background:var(--accent);opacity:0;border:2px solid #fff;width:9px;height:9px;transition:opacity .12s}.shape-node:hover .react-flow__handle.shape-handle,.text-node:hover .react-flow__handle.shape-handle,.react-flow__node.selected .react-flow__handle.shape-handle,.react-flow__handle.shape-handle.connectingfrom,.react-flow__handle.shape-handle.connectingto,.react-flow__handle.shape-handle.valid{opacity:1}.properties-panel{background:var(--panel-bg);border-left:1px solid var(--panel-border);flex-shrink:0;width:256px;padding:14px;font-size:12px;overflow-y:auto}.properties-panel__empty{color:var(--text-muted);margin-top:8px;font-size:13px;line-height:1.5}.prop-section{margin-bottom:18px}.prop-section__title{border-bottom:1px solid var(--panel-border);margin-bottom:10px;padding-bottom:6px;font-size:13px;font-weight:600}.prop-field{flex-direction:column;gap:5px;margin-bottom:11px;display:flex}.prop-field__label{color:var(--text-muted)}.prop-field__control{display:flex}.prop-inline{gap:6px;display:flex}.prop-segmented{gap:4px;width:100%;display:flex}.prop-seg-btn,.prop-toggle{font:inherit;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--text);cursor:pointer;border-radius:6px;flex:1;padding:5px 6px;font-size:12px;transition:background .12s,border-color .12s}.prop-seg-btn:hover,.prop-toggle:hover{background:var(--btn-hover)}.prop-seg-btn.is-on,.prop-toggle.is-on{background:var(--accent);border-color:var(--accent);color:#fff}.prop-swatches{flex-wrap:wrap;gap:6px;display:flex}.prop-swatch{border:2px solid var(--panel-border);cursor:pointer;border-radius:50%;width:20px;height:20px;padding:0}.prop-swatch.is-on{border-color:var(--text);box-shadow:0 0 0 2px var(--accent)}.prop-swatch--transparent{background-color:#fff;background-image:linear-gradient(45deg,#cbd5e1 25%,#0000 25%),linear-gradient(-45deg,#cbd5e1 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#cbd5e1 75%),linear-gradient(-45deg,#0000 75%,#cbd5e1 75%);background-position:0 0,0 4px,4px -4px,-4px 0;background-repeat:repeat,repeat,repeat,repeat;background-size:8px 8px;background-attachment:scroll,scroll,scroll,scroll;background-origin:padding-box,padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box,border-box}.prop-swatch--custom{background:conic-gradient(#ef4444,#f59e0b,#22c55e,#3b82f6,#a855f7,#ef4444);justify-content:center;align-items:center;display:flex;overflow:hidden}.prop-swatch--custom input[type=color]{opacity:0;cursor:pointer;border:none;width:100%;height:100%;padding:0}.prop-range{align-items:center;gap:8px;width:100%;display:flex}.prop-range input[type=range]{flex:1;min-width:0}.prop-range__value{text-align:right;min-width:34px;color:var(--text-muted)}.prop-select{width:100%;font:inherit;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--text);cursor:pointer;border-radius:6px;padding:5px 6px;font-size:12px}.prop-textarea{width:100%;font:inherit;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--text);resize:vertical;border-radius:6px;min-height:38px;padding:6px 7px;font-size:12px;line-height:1.3}.prop-textarea:focus{border-color:var(--accent);outline:none}.prop-delete{width:100%;font:inherit;color:#ef4444;cursor:pointer;background:0 0;border:1px solid #ef4444;border-radius:6px;margin-top:4px;padding:7px;font-size:12px;transition:background .12s}.prop-delete:hover{background:#ef44441a}.prop-grid6{grid-template-columns:repeat(3,1fr);gap:4px;width:100%;display:grid}.react-flow__helperlines{pointer-events:none;z-index:10;position:absolute;top:0;left:0}.image-node{border-radius:4px;position:relative}.image-node--selected{outline:2px solid var(--accent);outline-offset:2px}.image-node__img{object-fit:contain;pointer-events:none;border-radius:3px;width:100%;height:100%;display:block}.image-node__placeholder{width:100%;height:100%;color:var(--text-muted);background:var(--item-hover);border:1px dashed var(--panel-border);border-radius:3px;justify-content:center;align-items:center;display:flex}.edge-label-wrap{pointer-events:all;position:absolute}.edge-label{white-space:nowrap;border:1px solid var(--panel-border);background:var(--panel-bg);color:var(--text);cursor:text;touch-action:none;border-radius:6px;padding:1px 6px;font-size:11px;line-height:1.4}.edge-label--selected{border-color:var(--accent)}.edge-label--moving{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent);cursor:grab;touch-action:none;animation:.3s ease-in-out infinite label-shake}.edge-label--moving:active{cursor:grabbing}@keyframes label-shake{0%{transform:rotate(-2deg)}50%{transform:rotate(2deg)}to{transform:rotate(-2deg)}}.edge-label__input{width:72px;font:inherit;text-align:center;border:1px solid var(--accent);background:var(--panel-bg);color:var(--text);border-radius:6px;padding:1px 5px;font-size:11px}.context-menu{z-index:50;border:1px solid var(--panel-border);background:var(--panel-bg);border-radius:10px;min-width:168px;padding:6px;position:fixed;box-shadow:0 10px 30px #0000002e}.context-menu__item{text-align:left;width:100%;font:inherit;color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:7px 10px;font-size:13px;display:block}.context-menu__item:hover{background:var(--btn-hover)}.context-menu__sep{background:var(--panel-border);height:1px;margin:5px 4px}.sidebar__image-btn{width:100%;font:inherit;border:1px solid var(--panel-border);background:var(--item-bg);color:var(--text);cursor:pointer;border-radius:8px;padding:9px 10px;font-size:13px;transition:background .15s,border-color .15s}.sidebar__image-btn:hover{background:var(--item-hover);border-color:var(--accent)}.dropbox{display:inline-flex;position:relative}.dropbox-loading{opacity:.6;cursor:default}.dropbox-connect{font-weight:500}.dropbox-account{align-items:center;gap:5px;max-width:220px;display:inline-flex}.dropbox-account__label{text-overflow:ellipsis;white-space:nowrap;max-width:150px;overflow:hidden}.dropbox__dropdown{z-index:30;border:1px solid var(--panel-border);background:var(--panel-bg);border-radius:10px;width:240px;padding:6px;position:absolute;top:calc(100% + 6px);right:0;box-shadow:0 10px 30px #0000002e}.dropbox__head{border-bottom:1px solid var(--panel-border);margin-bottom:6px;padding:8px 10px}.dropbox__name{text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:600;overflow:hidden}.dropbox__email{color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.dropbox__disconnect{width:100%;font:inherit;color:#ef4444;cursor:pointer;background:0 0;border:1px solid #ef4444;border-radius:6px;padding:8px 10px;font-size:13px;transition:background .12s}.dropbox__disconnect:hover{background:#ef44441a}.dropbox-notice{z-index:30;white-space:nowrap;border-radius:6px;padding:5px 9px;font-size:12px;position:absolute;top:calc(100% + 6px);right:0;box-shadow:0 6px 18px #00000026}.dropbox-notice--ok{color:#fff;background:#16a34a}.dropbox-notice--error{color:#fff;background:#ef4444}.dropbox__item{text-align:left;width:100%;font:inherit;color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:6px;margin-bottom:6px;padding:8px 10px;font-size:13px}.dropbox__item:hover{background:var(--btn-hover)}.modal-overlay{z-index:100;background:#0f172a80;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:12px;flex-direction:column;width:460px;max-width:100%;max-height:80vh;display:flex;overflow:hidden;box-shadow:0 20px 60px #0000004d}.modal__head{border-bottom:1px solid var(--panel-border);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.modal__title{margin:0;font-size:15px;font-weight:600}.modal__close{font:inherit;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:4px 8px;font-size:16px;line-height:1}.modal__close:hover{background:var(--btn-hover);color:var(--text)}.modal__hint{color:var(--text-muted);margin:12px 16px 6px;font-size:12px}.modal__foot{border-top:1px solid var(--panel-border);justify-content:flex-end;gap:8px;padding:12px 16px;display:flex}.modal__btn{font:inherit;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--text);cursor:pointer;border-radius:8px;padding:8px 14px;font-size:13px}.modal__btn:hover{background:var(--btn-hover)}.modal__btn--primary{background:var(--accent);border-color:var(--accent);color:#fff}.modal__btn--primary:disabled{opacity:.6;cursor:default}.fp__breadcrumb{flex-wrap:wrap;align-items:center;gap:2px;padding:0 16px 8px;font-size:12px;display:flex}.fp__breadcrumb button{font:inherit;color:var(--accent);cursor:pointer;background:0 0;border:none;border-radius:5px;padding:2px 5px;font-size:12px}.fp__breadcrumb button:hover{background:var(--btn-hover)}.fp__sep{color:var(--text-muted)}.fp__list{border:1px solid var(--panel-border);border-radius:8px;flex:1;min-height:180px;margin:0 8px;padding:4px 8px;overflow-y:auto}.fp__row{border-radius:6px;align-items:center;gap:8px;padding:2px 4px;display:flex}.fp__row.is-selected{background:var(--item-hover)}.fp__check{align-items:center;display:flex}.fp__name{text-align:left;font:inherit;color:var(--text);cursor:pointer;text-overflow:ellipsis;white-space:nowrap;background:0 0;border:none;border-radius:6px;flex:1;padding:6px;font-size:13px;overflow:hidden}.fp__name:hover{background:var(--btn-hover)}.fp__msg{text-align:center;color:var(--text-muted);padding:24px 12px;font-size:13px}.fp__msg--err{color:#ef4444}.fp__selected{color:var(--text-muted);padding:10px 16px 0;font-size:12px}.fp__name--row{width:100%;display:block}.fp__name--file{color:var(--accent)}.doc-node{border:1px solid var(--panel-border);background:var(--item-bg);border-radius:10px;align-items:center;gap:10px;padding:10px 12px;display:flex;position:relative;box-shadow:0 1px 2px #0000000f}.doc-node.is-linked{border-color:var(--accent)}.doc-node--selected{outline:2px solid var(--accent);outline-offset:2px}.doc-node__icon{flex-shrink:0;font-size:26px;line-height:1}.doc-node__body{flex-direction:column;flex:1;gap:4px;min-width:0;display:flex}.doc-node__name{overflow-wrap:anywhere;word-break:break-word;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;font-size:13px;font-weight:600;line-height:1.25;display:-webkit-box;overflow:hidden}.doc-node__hint{color:var(--text-muted);font-size:11px}.doc-node__download{font:inherit;border:1px solid var(--accent);color:var(--accent);cursor:pointer;background:0 0;border-radius:6px;align-self:flex-start;padding:3px 8px;font-size:12px}.doc-node__download:hover{background:var(--accent);color:#fff}.doc-prop__file{border:1px solid var(--panel-border);background:var(--btn-bg);border-radius:8px;align-items:center;gap:6px;margin-bottom:10px;padding:8px 10px;font-size:12px;display:flex}.doc-prop__name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.doc-prop__empty{color:var(--text-muted)}.doc-prop__btn{width:100%;margin-bottom:8px}.connector-layer{pointer-events:none;position:absolute;top:0;left:0;overflow:visible}.connector-hit{fill:none;stroke:#0000;stroke-width:14px;pointer-events:stroke;cursor:move;touch-action:none}.connector-line{pointer-events:none}.connector-handle{fill:var(--accent);stroke:#fff;stroke-width:1.5px;opacity:0;pointer-events:none;transition:opacity .12s}.connector-seg{fill:#fff;stroke:var(--accent);stroke-width:1.5px;opacity:0;pointer-events:none;transition:opacity .12s}.connector:hover .connector-handle,.connector.is-selected .connector-handle,.connector:hover .connector-seg,.connector.is-selected .connector-seg{opacity:1}.connector-handle-hit,.connector-seg-hit{fill:#0000;pointer-events:none;cursor:grab;touch-action:none}.connector:hover .connector-handle-hit,.connector.is-selected .connector-handle-hit,.connector:hover .connector-seg-hit,.connector.is-selected .connector-seg-hit{pointer-events:all}.connector-handle-hit:active{cursor:grabbing}.connector-seg-hit.connector-seg--h{cursor:ns-resize}.connector-seg-hit.connector-seg--v{cursor:ew-resize}.connector-layer.is-selecting .connector-hit,.connector-layer.is-selecting .connector-handle-hit,.connector-layer.is-selecting .connector-seg-hit,.connector-layer.is-locked .connector-hit,.connector-layer.is-locked .connector-handle-hit,.connector-layer.is-locked .connector-seg-hit,.connector-labels.is-locked .edge-label-wrap{pointer-events:none}@media (pointer:coarse){.connector-hit{stroke-width:26px}.react-flow__handle.shape-handle{pointer-events:none;border-width:3px;width:24px;height:24px}.react-flow__node.selected .react-flow__handle.shape-handle{pointer-events:all}.react-flow__resize-control.handle{touch-action:none}.react-flow__resize-control.handle:after{content:"";background:var(--accent);pointer-events:none;border:2px solid #fff;border-radius:3px;width:13px;height:13px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}}.connector-labels.is-selecting .edge-label-wrap{pointer-events:none}.touch-toast{z-index:60;background:var(--accent);color:#fff;pointer-events:none;border-radius:999px;padding:9px 18px;font-size:14px;font-weight:600;animation:.16s ease-out touch-toast-in;position:absolute;bottom:28px;left:50%;transform:translate(-50%);box-shadow:0 6px 20px #00000047}@keyframes touch-toast-in{0%{opacity:0;transform:translate(-50%)translateY(8px)}to{opacity:1;transform:translate(-50%)translateY(0)}}@keyframes copy-flash{0%{box-shadow:0 0 #0000}18%{box-shadow:0 0 0 5px var(--accent), 0 0 16px 5px var(--accent)}40%{box-shadow:0 0 0 2px var(--accent)}62%{box-shadow:0 0 0 5px var(--accent), 0 0 16px 5px var(--accent)}to{box-shadow:0 0 #0000}}.react-flow__node.just-copied{border-radius:6px;animation:1s ease-out copy-flash}@keyframes copy-flash-line{0%,to{filter:none}18%,62%{filter:drop-shadow(0 0 4px var(--accent)) drop-shadow(0 0 8px var(--accent))}40%{filter:drop-shadow(0 0 2px var(--accent))}}.connector.is-copied .connector-line{animation:1s ease-out copy-flash-line}.mobile-sel-tools{z-index:45;gap:8px;animation:.14s ease-out fab-pop;display:inline-flex;position:fixed}.mobile-sel-btn{color:#fff;cursor:pointer;touch-action:manipulation;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;display:inline-flex;box-shadow:0 3px 12px #00000052}.mobile-sel-btn--edit{background:var(--accent)}.mobile-sel-btn--delete{background:#e23b3b}.mobile-sel-btn:active{transform:scale(.92)}@keyframes fab-pop{0%{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}.mobile-undo-redo{z-index:40;gap:8px;display:flex;position:fixed;top:58px;left:10px}.mobile-ur-btn{border:1px solid var(--btn-border);background:var(--panel-bg);width:40px;height:40px;color:var(--text);cursor:pointer;touch-action:manipulation;border-radius:50%;justify-content:center;align-items:center;display:inline-flex;box-shadow:0 2px 8px #00000038}.mobile-ur-btn:disabled{opacity:.4;color:var(--text-muted);cursor:default}.mobile-ur-btn:active:not(:disabled){transform:scale(.92)}.mobile-ur-btn--flash{color:#fff;background:var(--accent);border-color:var(--accent);animation:.85s ease-in-out infinite ur-pulse}@keyframes ur-pulse{0%,to{box-shadow:0 0 0 0 var(--accent)}60%{box-shadow:0 0 12px 5px var(--accent)}}.mobile-fit-btn{z-index:40;border:1px solid var(--btn-border);background:var(--panel-bg);width:40px;height:40px;color:var(--text);cursor:pointer;touch-action:manipulation;border-radius:50%;justify-content:center;align-items:center;display:inline-flex;position:fixed;top:58px;right:58px;box-shadow:0 2px 8px #00000038}.mobile-fit-btn:active{transform:scale(.92)}.canvas-lock-btn{z-index:41;border:1px solid var(--btn-border);background:var(--panel-bg);width:40px;height:40px;color:var(--text);cursor:pointer;touch-action:manipulation;border-radius:50%;justify-content:center;align-items:center;display:inline-flex;position:fixed;top:58px;right:10px;box-shadow:0 2px 8px #00000038}.canvas-lock-btn:active{transform:scale(.92)}.canvas-lock-btn--locked{color:#e23b3b;border-color:#e23b3b}.canvas-lock-frame{z-index:39;pointer-events:none;border:3px solid #e23b3b;position:absolute;inset:0;box-shadow:inset 0 0 0 1px #e23b3b66}.properties-panel__mobile-header{display:none}@media (pointer:coarse){.canvas{-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}.canvas input,.canvas textarea,.canvas [contenteditable=true]{-webkit-user-select:text;user-select:text}}.export-overlay{z-index:200;background:#0f172a73;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.export-overlay__box{color:var(--text);background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:12px;align-items:center;gap:12px;padding:16px 22px;font-size:15px;font-weight:500;display:flex;box-shadow:0 20px 60px #0000004d}.export-spinner{border:3px solid var(--panel-border);border-top-color:var(--accent);border-radius:50%;width:20px;height:20px;animation:.7s linear infinite export-spin}@keyframes export-spin{to{transform:rotate(360deg)}}.topbar__menu-btn{font:inherit;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--text);cursor:pointer;border-radius:8px;padding:4px 10px;font-size:20px;line-height:1;display:none}.drawer-backdrop{display:none}@media (width<=768px){.topbar{gap:8px;height:50px;padding:0 10px}.topbar__menu-btn{align-items:center;display:inline-flex}.topbar__brand{gap:6px;min-width:0}.topbar__name,.topbar__status,.dropbox-account__label{display:none}.diagram-menu{margin-left:4px}.diagram-menu__current{max-width:38vw}.topbar__actions{-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:4px;overflow-x:auto}.topbar__actions::-webkit-scrollbar{display:none}.topbar__btn{flex-shrink:0;padding:7px 9px}.sidebar{z-index:60;width:80%;max-width:300px;transition:transform .22s;position:fixed;top:50px;bottom:0;left:0;transform:translate(-100%);box-shadow:4px 0 24px #00000040}.sidebar--open{transform:translate(0)}.shape-item{min-height:64px}.shape-item--text{min-height:52px}.app.drawer-open .drawer-backdrop{top:50px;z-index:55;background:#0f172a73;display:block;position:fixed;inset:50px 0 0}.properties-panel{z-index:50;border-left:none;border-top:1px solid var(--panel-border);border-radius:14px 14px 0 0;width:auto;max-height:48vh;transition:transform .22s;position:fixed;bottom:0;left:0;right:0;transform:translateY(110%);box-shadow:0 -8px 30px #00000040}.properties-panel--active{transform:translateY(0)}.properties-panel__mobile-header{border-bottom:1px solid var(--panel-border);justify-content:space-between;align-items:center;margin:-4px -2px 10px;padding-bottom:8px;display:flex}.properties-panel__mobile-title{color:var(--text);font-size:14px;font-weight:700}.properties-panel__close{border:1px solid var(--btn-border);background:var(--btn-bg);width:32px;height:32px;color:var(--text);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;display:inline-flex}.react-flow__minimap{display:none}.react-flow__controls{transform-origin:0 100%;transform:scale(1.15)}}.crash-screen{z-index:1000;background:var(--bg-app);justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.crash-screen__box{text-align:center;border:1px solid var(--panel-border);background:var(--panel-bg);border-radius:14px;max-width:360px;padding:24px;box-shadow:0 10px 40px #00000040}.crash-screen__icon{font-size:36px}.crash-screen__title{color:var(--text);margin:8px 0 6px;font-size:18px}.crash-screen__text{color:var(--text-muted);margin:0 0 16px;font-size:14px;line-height:1.5}.crash-screen__btn{font:inherit;background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:10px 20px;font-size:14px;font-weight:600}