html,body{height:100%;margin:0;padding:0}#root{height:100%}:root{--font:"Inter", "Noto Sans JP", system-ui, -apple-system, sans-serif;--canvas:#f4f5f7;--surface:#fff;--ink:#16181d;--text:#40444d;--text-2:#9094a0;--border:#e7e8ec;--border-strong:#d9dbe1;--accent:#2d5bff;--accent-hover:#2449d6;--accent-weak:#edf1ff;--danger:#e5484d;--danger-weak:#fdebec;--r-sm:8px;--r-md:12px;--r-lg:16px;--shadow-card:0 0 0 1px #16181d0a, 0 1px 2px #16181d0a, 0 8px 24px #16181d14;--shadow-pop:0 0 0 1px #16181d0d, 0 12px 32px #16181d29;--shadow-node:0 1px 2px #16181d0f, 0 3px 10px #16181d0d}*{box-sizing:border-box}body{font-family:var(--font);-webkit-font-smoothing:antialiased}.app{width:100vw;height:100vh;font-family:var(--font);color:var(--text);-webkit-font-smoothing:antialiased;font-size:13px;position:relative;overflow:hidden}.icon-btn{border-radius:var(--r-sm);width:30px;height:30px;color:var(--text);cursor:pointer;background:0 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var(--accent);background:var(--accent);color:#fff;font-weight:600}.btn-primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}.btn-danger{border-radius:var(--r-sm);cursor:pointer;border:1px solid var(--danger);background:var(--danger);color:#fff;justify-content:center;align-items:center;gap:6px;padding:8px 14px;font-family:inherit;font-size:13px;font-weight:600;transition:background .12s;display:inline-flex}.btn-danger:hover:not(:disabled){background:#c93d42;border-color:#c93d42}.btn:disabled,.btn-primary:disabled,.btn-danger:disabled{opacity:.45;cursor:default}.btn.sm,.btn-primary.sm{border-radius:7px;padding:5px 10px;font-size:12px}.canvas{background-color:var(--canvas);cursor:grab;touch-action:none;background-image:radial-gradient(circle,#16181d13 1px,#0000 1px);background-size:22px 22px;position:absolute;inset:0;overflow:hidden}.canvas:active{cursor:grabbing}.world{transform-origin:0 0;width:0;height:0;position:absolute;top:0;left:0}.edges{pointer-events:none;width:1px;height:1px;position:absolute;top:0;left:0}.node{background:var(--surface);box-shadow:var(--shadow-node);letter-spacing:.01em;white-space:nowrap;cursor:grab;-webkit-user-select:none;user-select:none;border:1.5px solid;border-radius:10px;justify-content:center;align-items:center;padding:8px 15px;font-size:13px;font-weight:500;transition:box-shadow .15s;display:flex;position:absolute}.node:hover{box-shadow:0 2px 4px #16181d14,0 6px 16px #16181d14}.node:active{cursor:grabbing}.node.root{letter-spacing:.02em;border-radius:12px;padding:11px 22px;font-size:14.5px;font-weight:700}.node.selected{box-shadow:0 0 0 2px var(--surface), 0 0 0 4px #2d5bff8c, 0 6px 16px #16181d1a}.node.drop-target{box-shadow:0 0 0 2px var(--surface), 0 0 0 5px var(--accent), 0 6px 16px #2d5bff40;transform:scale(1.05)}.node-text{pointer-events:none}.node-input{font:inherit;color:inherit;text-align:center;background:0 0;border:none;outline:none;width:100%;min-width:60px}.node-badge{background:var(--ink);color:#fff;min-width:22px;height:20px;font-family:var(--font);cursor:pointer;border:none;border-radius:10px;padding:0 6px;font-size:10.5px;font-weight:700;line-height:20px;transition:transform .12s;position:absolute;top:-10px;right:-12px;box-shadow:0 2px 6px #16181d4d}.node-badge:hover{transform:scale(1.12)}.topbar{pointer-events:none;z-index:20;justify-content:space-between;gap:10px;display:flex;position:absolute;top:14px;left:14px;right:14px}.tb-card{pointer-events:auto;-webkit-backdrop-filter:blur(14px);border-radius:var(--r-md);box-shadow:var(--shadow-card);background:#ffffffe6;align-items:center;gap:2px;padding:5px;display:flex}.tb-div{background:var(--border);flex-shrink:0;width:1px;height:18px;margin:0 6px}.brand{align-items:center;gap:8px;padding:0 4px;display:flex}.wordmark{color:var(--text-2);letter-spacing:.01em;white-space:nowrap;font-size:13.5px;font-weight:400}.wordmark b{color:var(--ink);font-weight:700}.map-title{color:var(--ink);border-radius:var(--r-sm);cursor:default;text-overflow:ellipsis;white-space:nowrap;background:0 0;border:none;max-width:220px;padding:5px 10px;font-family:inherit;font-size:13px;font-weight:600;overflow:hidden}.map-title:hover{background:#f1f2f6}.map-title-input{color:var(--ink);border:1.5px solid var(--accent);border-radius:var(--r-sm);outline:none;width:200px;padding:4px 9px;font-family:inherit;font-size:13px;font-weight:600}.menu-anchor{display:inline-flex;position:relative}.menu-backdrop{z-index:30;position:fixed;inset:0}.menu-pop{z-index:31;background:var(--surface);border-radius:var(--r-md);min-width:210px;box-shadow:var(--shadow-pop);flex-direction:column;gap:2px;padding:5px;animation:.14s ease-out modal-in;display:flex;position:absolute;top:calc(100% + 8px);right:0}.menu-pop button{border-radius:var(--r-sm);text-align:left;cursor:pointer;color:var(--text);background:0 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2px;display:flex}.swatch{cursor:pointer;border:none;border-radius:50%;width:14px;height:14px;padding:0;transition:transform .12s,box-shadow .12s}.swatch:hover{transform:scale(1.25)}.swatch.on{box-shadow:0 0 0 2px var(--surface), 0 0 0 3.5px var(--ink)}.sidebar{-webkit-backdrop-filter:blur(14px);border-radius:var(--r-lg);width:264px;box-shadow:var(--shadow-card);z-index:18;background:#fffffff0;flex-direction:column;animation:.16s ease-out side-in;display:flex;position:absolute;top:64px;bottom:14px;left:14px;overflow:hidden}@keyframes side-in{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}.sidebar-head{letter-spacing:.06em;color:var(--text-2);text-transform:uppercase;justify-content:space-between;align-items:center;padding:14px 16px 10px;font-size:12px;font-weight:700;display:flex}.backup-bar{border-bottom:1px solid var(--border);gap:6px;padding:0 12px 12px;display:flex}.backup-bar .btn{color:var(--text-2);border-color:var(--border);flex:1}.backup-bar 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var(--border-strong);color:var(--ink);border-radius:10px;outline:none;padding:10px 12px;font-family:inherit;font-size:14px;transition:border-color .12s,box-shadow .12s}.auth-modal input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #2d5bff24}.auth-msg{border-radius:9px;padding:9px 12px;font-size:12px;line-height:1.6}.auth-msg.error{background:var(--danger-weak);color:#b3261e}.auth-msg.info{background:var(--accent-weak);color:var(--accent-hover)}.auth-buttons{justify-content:flex-end;gap:8px;display:flex}.auth-link{color:var(--accent);cursor:pointer;text-underline-offset:2px;text-align:center;background:0 0;border:none;padding:0;font-family:inherit;font-size:12px;text-decoration:underline}.auth-link:hover{color:var(--accent-hover)}.auth-link.inline{font-size:inherit;display:inline}.auth-note{color:var(--text-2);text-align:center;font-size:10.5px;line-height:1.7}.merge-desc{color:var(--text);font-size:13px;line-height:1.8}.merge-list{border:1px solid var(--border);border-radius:var(--r-md);color:var(--ink);background:#fafafb;flex-direction:column;gap:4px;max-height:140px;margin:0;padding:10px 14px;font-size:12.5px;font-weight:500;list-style:none;display:flex;overflow-y:auto}.merge-list li:before{content:"・";color:var(--text-2)}.merge-list .merge-rest{color:var(--text-2);font-weight:400}.logout-options{flex-direction:column;gap:8px;display:flex}.logout-options button{border:1px solid var(--border-strong);border-radius:var(--r-md);background:var(--surface);text-align:left;cursor:pointer;flex-direction:column;align-items:flex-start;gap:3px;padding:12px 14px;font-family:inherit;transition:border-color .12s,background .12s;display:flex}.logout-options button:hover:not(:disabled){border-color:var(--accent);background:var(--accent-weak)}.logout-options button.danger:hover:not(:disabled){border-color:var(--danger);background:var(--danger-weak)}.logout-options button:disabled{opacity:.5;cursor:default}.logout-options b{color:var(--ink);font-size:13px}.logout-options button.danger b{color:var(--danger)}.logout-options span{color:var(--text-2);font-size:11px;line-height:1.5}.help-modal{background:var(--surface);border-radius:var(--r-lg);width:min(600px,92vw);max-height:84vh;box-shadow:var(--shadow-pop);flex-direction:column;animation:.18s ease-out modal-in;display:flex;overflow:hidden}.help-hero{border-bottom:1px solid var(--border);align-items:center;gap:14px;padding:22px 24px 18px;display:flex}.help-title{color:var(--ink);font-size:16px;font-weight:700}.help-sub{color:var(--text-2);margin-top:2px;font-size:12px}.help-body{padding:8px 24px 16px;overflow-y:auto}.help-body section{border-bottom:1px solid var(--border);padding:14px 0}.help-body section:last-child{border-bottom:none}.help-body h3{color:var(--ink);align-items:center;gap:7px;margin:0 0 10px;font-size:13px;font-weight:700;display:flex}.help-body h3 svg{color:var(--accent)}.help-steps{color:var(--text);margin:0;padding-left:20px;font-size:12.5px;line-height:2}.help-list{color:var(--text);margin:0;padding-left:18px;font-size:12.5px;line-height:1.9}.help-list svg{vertical-align:-2px;color:var(--text-2)}.help-table{border-collapse:collapse;width:100%;color:var(--text);font-size:12.5px}.help-table td{vertical-align:top;padding:5px 0}.help-table td:first-child{width:42%;color:var(--ink);padding-right:12px;font-weight:500}.g-kbd{border:1px solid var(--border-strong);color:var(--ink);white-space:nowrap;background:#fafafb;border-bottom-width:2px;border-radius:5px;margin:0 1px;padding:1px 6px;font-family:inherit;font-size:11px;font-weight:600;display:inline-block}.help-foot{border-top:1px solid var(--border);background:#fafafb;justify-content:space-between;align-items:center;gap:12px;padding:14px 24px;display:flex}.help-foot-note{color:var(--text-2);font-size:11px}.help-foot-note svg{vertical-align:-2px}.legal-modal{background:var(--surface);border-radius:var(--r-lg);width:min(560px,92vw);max-height:80vh;box-shadow:var(--shadow-pop);flex-direction:column;gap:14px;padding:24px;animation:.18s ease-out modal-in;display:flex}.legal-body{white-space:pre-wrap;color:var(--text);border:1px solid var(--border);border-radius:var(--r-md);background:#fafafb;padding:14px 16px;font-size:12.5px;line-height:1.9;overflow-y:auto}