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var(--slate-200);height:56px;flex-shrink:0}.brand{font-family:var(--font-display);font-weight:400;font-size:24px;line-height:1;letter-spacing:-.01em;color:var(--slate-900);flex-shrink:0}.header-title-group{display:flex;flex-direction:column;gap:2px;min-width:0}.map-title-input{font-size:15px;color:var(--slate-900);padding:6px 10px;border:1px solid transparent;border-radius:8px;background:transparent;outline:none;min-width:260px;max-width:380px;font-family:inherit;font-weight:500;transition:border-color .15s var(--ease-out-expo),box-shadow .15s var(--ease-out-expo),background .15s var(--ease-out-expo)}.map-title-input:hover{background:var(--slate-50);border-color:var(--slate-200)}.map-title-input:focus{background:#fff;border-color:var(--primary-500);box-shadow:0 0 0 2px #3b82f633}.save-status{font-size:12px;color:var(--slate-500);padding:0 10px;font-variant-numeric:tabular-nums;letter-spacing:.01em;transition:color .2s var(--ease-out-expo)}.save-status[data-state=saving]{color:var(--primary-600)}.save-status[data-state=saved]{color:var(--slate-400)}.save-status[data-state=error]{color:#b91c1c}.app-body{display:flex;flex:1;min-height:0;position:relative}.sidebar{width:260px;background:#fff;border-right:1px solid var(--slate-200);flex-shrink:0;display:flex;flex-direction:column;overflow:hidden}.sidebar[data-open=false]{display:none}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--slate-200);gap:8px}.sidebar-title{font-family:var(--font-display);font-size:20px;font-weight:400;letter-spacing:-.01em;color:var(--slate-900)}.sidebar-controls{display:flex;flex-direction:column;gap:4px;padding:6px 10px;background:#fff;border-bottom:1px solid var(--slate-200)}.sidebar-search{display:flex;align-items:center;min-width:0;width:100%;height:26px;padding:0 8px;gap:6px;background:var(--slate-50);border:1px solid var(--slate-200);border-radius:6px;color:var(--slate-500);transition:border-color .12s ease,box-shadow .12s ease,background .12s ease}.sidebar-search:focus-within{background:#fff;border-color:var(--primary-500);box-shadow:0 0 0 2px #3b82f626}.sidebar-search .search-icon{flex-shrink:0;display:inline-flex;line-height:0}.sidebar-search .search-icon svg{width:12px;height:12px}.sidebar-search .search-input{flex:1;min-width:0;border:none;outline:none;background:transparent;font:inherit;font-size:13px;color:var(--slate-900);padding:0}.sidebar-search .search-input::placeholder{color:var(--slate-400)}.sidebar-filter-row{display:flex;align-items:center;gap:4px}.btn-filter-favorites{display:inline-flex;align-items:center;gap:4px;height:26px;padding:0 8px;background:#fff;border:1px solid var(--slate-200);border-radius:6px;color:var(--slate-600, var(--slate-700));font-size:12px;font-weight:500;cursor:pointer;transition:background .12s ease,border-color .12s ease,color .12s 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var(--ease-out-expo)}.map-item-btn:hover{background:#fff;border-color:var(--slate-200);color:var(--slate-900)}.map-item-btn.danger:hover{color:var(--danger-500);border-color:#fecaca;background:#fef2f2}.sidebar-footer{border-top:1px solid var(--slate-200);padding:10px 12px;background:#fff;flex-shrink:0}.sidebar-footer-btn{width:100%;display:inline-flex;align-items:center;gap:8px;padding:8px 10px;background:transparent;border:1px solid transparent;border-radius:8px;color:var(--slate-700);font-size:13px;font-weight:500;cursor:pointer;transition:background .12s ease,border-color .12s ease,color .12s ease}.sidebar-footer-btn:hover{background:var(--slate-50);border-color:var(--slate-200);color:var(--slate-900)}.sidebar-footer-label{flex:1;text-align:left}.trash-badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 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720px){.app-header{height:auto;min-height:56px;padding:8px 12px;gap:8px;flex-wrap:wrap}.brand{font-size:15px}.sidebar{position:absolute;top:0;bottom:0;left:0;z-index:90;box-shadow:0 4px 12px #0f172a14}.sidebar-scrim{position:absolute;top:0;right:0;bottom:0;left:0;background:#0f172a52;z-index:80}.sidebar-scrim:not([hidden]){display:block}.map-title-input{min-width:100px;max-width:160px;flex:1 1 120px}.save-status{display:none}.search-box{flex:1 1 100%;order:10;min-width:0}.toolbar{order:11;flex-wrap:wrap;justify-content:flex-end}.header-spacer,.tool-btn .btn-label-hide-sm{display:none}}.header-spacer{flex:1}.toolbar{display:flex;align-items:center;gap:8px}.toolbar-group{display:flex;align-items:center;gap:4px}.toolbar-divider{width:1px;height:20px;background:var(--slate-200);flex-shrink:0}.tool-btn{height:34px;min-width:34px;padding:0 12px;background:#fff;border:1px solid var(--slate-200);border-radius:8px;color:var(--slate-700);font-family:inherit;font-size:14px;font-weight:500;letter-spacing:-.005em;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;transition:background .15s var(--ease-out-expo),border-color .15s var(--ease-out-expo),color .15s var(--ease-out-expo),box-shadow .15s var(--ease-out-expo)}.tool-btn:hover:not(:disabled){background:var(--slate-50);border-color:var(--slate-300);color:var(--slate-900)}.tool-btn:active:not(:disabled){background:var(--slate-100)}.tool-btn:focus-visible{outline:none;border-color:var(--primary-500);box-shadow:0 0 0 2px #3b82f633}.tool-btn:disabled{color:var(--slate-300);cursor:not-allowed}.tool-btn-icon{padding:0;width:34px}.tool-btn .icon-chevron{color:var(--slate-400);margin-left:2px}.hint{font-size:12px;color:var(--slate-500)}.canvas-wrap{position:relative;flex:1;overflow:hidden;background-color:var(--slate-50);background-image:radial-gradient(circle,rgba(15,23,42,.05) 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#0f172a14;border-color:var(--slate-300)}.node[data-root=true]{background:var(--primary-50);border-color:var(--primary-500);font-weight:600;font-size:16px;padding:12px 20px;min-width:140px}.node[aria-selected=true]{border-color:var(--primary-500);box-shadow:0 0 0 2px var(--primary-500),0 4px 12px #3b82f626}.node[aria-selected=true]:hover{box-shadow:0 0 0 2px var(--primary-500),0 6px 16px #3b82f62e}.node.drop-target{border-color:var(--success-500);box-shadow:0 0 0 2px #10b9814d}.node.drop-invalid{border-color:var(--danger-500);box-shadow:0 0 0 2px #ef444440}.node.dragging{opacity:.55}.node-input{min-width:240px;width:auto;border:none;outline:none;background:transparent;font:inherit;color:inherit;text-align:center;padding:0;box-sizing:content-box}.node[data-root=true] .node-input{min-width:280px}.collapse-toggle{position:absolute;top:50%;width:18px;height:18px;border-radius:50%;background:#fff;border:1px solid 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#0f172a1f;padding:6px;z-index:110;display:flex;flex-direction:column;gap:2px}.context-menu[hidden]{display:none}.search-box{position:relative;display:inline-flex;align-items:center;gap:4px;height:32px;padding:0 8px;background:var(--slate-50);border:1px solid var(--slate-200);border-radius:8px;color:var(--slate-700);min-width:200px;max-width:320px;flex:0 1 260px;transition:border-color .12s ease,box-shadow .12s ease,background .12s ease}.search-box:focus-within{background:#fff;border-color:var(--primary-500);box-shadow:0 0 0 2px #3b82f633}.search-icon{font-size:13px;color:var(--slate-500);line-height:1;flex-shrink:0}.search-input{flex:1;min-width:0;height:100%;border:none;outline:none;background:transparent;font:inherit;font-size:14px;color:var(--slate-900);padding:0}.search-input::placeholder{color:var(--slate-400)}.search-input::-webkit-search-cancel-button{display:none}.search-count{font-size:11px;color:var(--slate-500);font-variant-numeric:tabular-nums;padding:0 4px;white-space:nowrap}.search-nav{width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;background:transparent;color:var(--slate-500);border-radius:6px;font-size:12px;cursor:pointer;padding:0;flex-shrink:0}.search-nav:hover{background:#fff;border-color:var(--slate-200);color:var(--slate-900)}.node[data-search-match=true]{background:#fef9c3;border-color:#eab308}.node[data-search-match=true][data-root=true]{background:#fef9c3}.node[data-search-current=true]{border-color:#ca8a04;box-shadow:0 0 0 2px #ca8a0459}.shortcuts-section+.shortcuts-section{margin-top:6px}.shortcuts-section-title{font-family:var(--font-display);font-size:18px;font-weight:400;letter-spacing:-.01em;color:var(--slate-900);margin-bottom:10px;padding-bottom:6px;border-bottom:1px solid var(--slate-200)}.shortcuts-list{margin:0;display:flex;flex-direction:column;gap:6px}.shortcut-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--slate-900)}.shortcut-row dt{display:flex;align-items:center;gap:4px;flex-shrink:0;color:var(--slate-700)}.shortcut-row dd{margin:0;text-align:right;color:var(--slate-500)}kbd{display:inline-block;min-width:22px;padding:2px 6px;background:var(--slate-50);border:1px solid var(--slate-200);border-bottom-width:2px;border-radius:6px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;font-weight:500;color:var(--slate-700);text-align:center;line-height:1.4}.empty-state{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;padding:40px 20px;z-index:70;background:var(--slate-50);pointer-events:auto}.empty-state[hidden]{display:none}.empty-state-card{max-width:420px;width:100%;padding:32px 28px;background:#fff;border:1px solid var(--slate-200);border-radius:12px;box-shadow:0 2px 4px #0f172a0a;text-align:center}.empty-state-title{font-family:var(--font-display);font-size:28px;font-weight:400;letter-spacing:-.015em;color:var(--slate-900);margin-bottom:12px;line-height:1.2}.empty-state-desc{font-size:13px;line-height:1.6;color:var(--slate-500);margin:0 0 20px}.empty-state-card .tool-btn-primary{height:36px;padding:0 16px;font-size:14px}@media (max-width: 720px){.shortcut-row dd{text-align:left}.empty-state-card{padding:24px 20px}}.viewer-badge{font-size:12px;font-weight:500;color:var(--primary-600);background:var(--primary-50);border:1px solid var(--primary-500);padding:4px 10px;border-radius:6px}.share-url-row{margin-bottom:8px}.share-hint{font-size:12px;color:var(--success-500);margin-top:6px}#share-url{flex:1;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.share-notfound{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;padding:40px 20px;z-index:80;background:var(--slate-50)}.share-notfound[hidden]{display:none}.share-notfound-card{max-width:460px;width:100%;padding:32px 28px;background:#fff;border:1px solid var(--slate-200);border-radius:12px;box-shadow:0 2px 4px #0f172a0a;text-align:center}.share-notfound-title{font-family:var(--font-display);font-size:28px;font-weight:400;letter-spacing:-.015em;color:var(--slate-900);margin-bottom:12px;line-height:1.2}.share-notfound-desc{font-size:13px;line-height:1.6;color:var(--slate-500);margin:0 0 20px}.share-notfound-card .tool-btn-primary{display:inline-flex;align-items:center;justify-content:center;height:36px;padding:0 16px;font-size:14px;text-decoration:none}body.viewer-mode .toolbar #btn-save,body.viewer-mode .toolbar #btn-undo,body.viewer-mode .toolbar #btn-redo,body.viewer-mode .toolbar #btn-add-link,body.viewer-mode .toolbar #btn-add-image,body.viewer-mode .toolbar #btn-edit-node,body.viewer-mode .toolbar #export-menu-wrap,body.viewer-mode .toolbar #import-menu-wrap,body.viewer-mode .toolbar #btn-share,body.viewer-mode #btn-toggle-sidebar,body.viewer-mode #sidebar,body.viewer-mode #sidebar-scrim,body.viewer-mode .hint-bar,body.viewer-mode .search-box,body.viewer-mode .save-status,body.viewer-mode #empty-state{display:none!important}body.viewer-mode .map-title-input{pointer-events:none;background:transparent;border-color:transparent;font-weight:600}body.viewer-mode .app-body{margin-left:0}