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button:disabled{opacity:.35;cursor:default}.breadcrumb{z-index:8;border:1px solid var(--line);background:var(--surface);max-width:calc(100% - 40px);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-radius:99px;align-items:center;gap:6px;padding:7px 11px;display:flex;position:absolute;top:16px;left:50%;transform:translate(-50%)}.breadcrumb button{color:var(--muted);cursor:pointer;white-space:nowrap;background:0 0;border:0;padding:2px 5px;font-size:12px}.breadcrumb button:last-of-type{color:var(--ink);cursor:default;font-weight:700}.breadcrumb span{color:var(--muted);opacity:.5}.hint{z-index:8;border:1px solid var(--line);color:var(--muted);background:var(--surface);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-radius:12px;align-items:center;gap:9px;padding:10px 10px 10px 13px;font-size:12px;display:flex;position:absolute;bottom:18px;left:20px}.hint-icon{color:var(--accent);font-size:18px}.hint strong{color:var(--ink)}.hint button{width:25px;height:25px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:7px;margin-left:4px;font-size:18px}.hint button:hover{background:color-mix(in srgb, var(--ink) 7%, transparent)}.toast{z-index:30;border:1px solid var(--line);max-width:min(430px,100% - 40px);color:var(--ink);background:var(--surface);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-radius:11px;padding:11px 14px;font-size:13px;position:absolute;bottom:18px;right:20px}.toast.error{color:#fff;background:#a83d35;border-color:#a83d35}.shortcuts-dialog{border:1px solid var(--line);width:min(440px,100% - 32px);color:var(--ink);background:var(--paper);box-shadow:var(--shadow);border-radius:16px;padding:24px}.open-map-dialog{width:min(660px,100% - 32px)}.shortcuts-dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#0a0c0ba8}.shortcuts-dialog h2{margin:5px 0 18px;font-family:Georgia,serif}.shortcuts-dialog dl{gap:5px;margin:0;display:grid}.shortcuts-dialog dl div{border-top:1px solid var(--line);grid-template-columns:76px 1fr;align-items:center;padding:8px 0;display:grid}.shortcuts-dialog dt{border:1px solid var(--line);text-align:center;border-radius:6px;width:max-content;min-width:28px;padding:3px 7px;font-weight:800}.shortcuts-dialog dd{color:var(--muted);margin:0;font-size:13px}.dialog-close{float:right;color:var(--muted);cursor:pointer;background:0 0;border:0;font-size:24px}.new-map-dialog form{gap:10px;display:grid}.new-map-dialog .dialog-close{justify-self:end}.new-map-dialog h2{margin-bottom:8px}.new-map-dialog label{color:var(--muted);font-size:12px;font-weight:700}.new-map-dialog input{border:1px solid var(--line);width:100%;min-height:40px;color:var(--ink);background:var(--surface);font:inherit;border-radius:8px;padding:8px 10px}.dialog-intro{color:var(--muted);margin:-7px 0 17px;font-size:13px;line-height:1.45}.map-library{gap:8px;max-height:min(42vh,340px);display:grid;overflow:auto}.map-library-panel{gap:10px;margin-top:10px;display:grid}.map-library-panel input{border:1px solid var(--line);width:100%;min-height:40px;color:var(--ink);background:var(--surface);font:inherit;border-radius:9px;padding:8px 11px}.map-library-panel input:focus{border-color:var(--accent);outline:3px solid color-mix(in srgb, var(--accent) 18%, transparent)}.map-choice,.local-map-choice{border:1px solid var(--line);border-radius:10px;justify-content:space-between;align-items:center;gap:12px;padding:12px;display:flex}.map-choice{width:100%;color:var(--ink);cursor:pointer;text-align:left;background:0 0}.map-choice:hover{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 7%, transparent)}.map-choice span,.local-map-choice span{gap:3px;display:grid}.map-choice small,.local-map-choice small{color:var(--muted);font-size:11px}.map-choice-meta{flex-flow:wrap;gap:5px!important;display:flex!important}.map-choice-meta em{color:var(--accent);background:color-mix(in srgb, var(--accent) 11%, transparent);border-radius:99px;padding:2px 6px;font-size:10px;font-style:normal;font-weight:700}.local-map-choice{border-style:dashed;margin-top:14px}.library-error{color:var(--muted);border:1px dashed var(--line);border-radius:10px;margin:0;padding:12px;font-size:12px}.search-dialog input{border:1px solid var(--line);width:100%;min-height:44px;color:var(--ink);background:var(--surface);font:inherit;border-radius:10px;padding:9px 12px}.search-dialog input:focus{border-color:var(--accent);outline:3px solid color-mix(in srgb, var(--accent) 18%, transparent)}.node-search-results{gap:7px;max-height:min(50vh,380px);margin-top:13px;display:grid;overflow:auto}.search-result{border:1px solid var(--line);width:100%;color:var(--ink);cursor:pointer;text-align:left;background:0 0;border-radius:9px;gap:3px;padding:10px 12px;display:grid}.search-result:hover,.search-result:focus-visible{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 7%, transparent);outline:none}.search-result small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:10px;overflow:hidden}.search-empty{color:var(--muted);border:1px dashed var(--line);text-align:center;border-radius:9px;margin:0;padding:18px;font-size:12px}.validation-errors{gap:7px;max-height:min(45vh,340px);margin:0 0 18px;padding:0;list-style:none;display:grid;overflow:auto}.validation-errors li{border-left:3px solid var(--accent);color:var(--ink);background:color-mix(in srgb, var(--accent) 8%, transparent);border-radius:5px;padding:9px 11px;font-size:12px;line-height:1.4}:root[data-ui-hidden=true] .app-shell{grid-template-rows:0 1fr}:root[data-ui-hidden=true] .topbar,:root[data-ui-hidden=true] .breadcrumb,:root[data-ui-hidden=true] .editor-panel,:root[data-ui-hidden=true] .hint{display:none}:root[data-ui-hidden=true] .mind-map{width:100%!important;height:100%!important}.loading-card{z-index:20;color:var(--muted);background:var(--paper);justify-content:center;align-items:center;gap:12px;font-size:14px;display:flex;position:absolute;inset:0}.loading-card.error{color:var(--accent);flex-direction:column}.spinner{border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;width:18px;height:18px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=720px){.topbar{grid-template-columns:minmax(0,1fr) auto;width:100%;min-height:62px;padding:9px 10px}.brand{min-width:0}.brand small,.control-label,.mode-label{display:none}.file-controls{justify-self:end;min-width:0;margin-left:0;overflow:visible}.control-menu-panel{left:auto;right:0}.prompt-download:after{top:calc(100% + 7px);left:auto;right:0;transform:translateY(-4px)}.prompt-download:hover:after,.prompt-download:focus-visible:after{transform:translateY(0)}.controls{grid-column:1/-1;min-width:0}.brand strong{font-size:16px}.control{min-width:36px;padding:0 7px}.control span:first-child,.separator{margin:0}.hint{justify-content:center;left:12px;right:12px}.file-controls{max-width:100%;overflow:visible}.shortcuts-dialog{width:calc(100% - 18px);max-height:calc(100dvh - 18px);padding:18px;overflow:auto}}@media (width<=820px){:root[data-mode=editing] .mind-map{width:100%;height:calc(100% - 250px)}:root[data-mode=editing] .breadcrumb{left:50%}.editor-panel{border-top:1px solid var(--line);border-left:0;width:100%;height:min(42dvh,330px);padding:14px 16px;top:auto;left:0;box-shadow:0 -10px 30px #0000001a}.editor-heading{padding-bottom:10px}.editor-heading h2{font-size:17px}.editor-group{margin-top:12px}}@media (width<=1100px){.topbar{grid-template-columns:minmax(0,1fr) auto;gap:8px 14px;display:grid}.file-controls{margin-left:auto}.controls{scrollbar-width:none;border-top:1px solid var(--line);grid-column:1/-1;justify-content:flex-start;width:100%;min-width:0;padding-top:7px;overflow-x:auto}.controls::-webkit-scrollbar{display:none}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}