:root{--text:#3a3640;--text-h:#08060d;--bg:#f7f7fa;--panel-bg:#fff;--border:#e0dfe6;--accent:#7c3aed;--accent-2:#2563eb;--end-color:#d97706;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:16px/1.45 var(--sans);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#c7c5cf;--text-h:#f3f4f6;--bg:#14151b;--panel-bg:#1c1d25;--border:#33343e;--accent:#a78bfa;--accent-2:#60a5fa;--end-color:#fbbf24}}*{box-sizing:border-box}body{margin:0}#root{min-height:100svh}h1,h2,h3{color:var(--text-h);font-weight:600}button{font:inherit}.app{flex-direction:column;min-height:100svh;display:flex}.app-header{border-bottom:1px solid var(--border);background:var(--panel-bg);padding:20px 28px 16px}.app-header-top{align-items:center;gap:10px;display:flex}.app-header h1{letter-spacing:-.3px;margin:0 0 6px;font-size:22px}.mobile-menu-btn{border:1px solid var(--border);background:var(--bg);color:var(--text-h);cursor:pointer;border-radius:8px;flex:none;padding:8px 12px;font-size:14px;display:none}.config-panel-close{display:none}.app-subtitle{max-width:900px;color:var(--text);opacity:.85;font-size:14px}.app-body{flex:1;align-items:stretch;min-height:0;display:flex}.config-panel{border-right:1px solid var(--border);background:var(--panel-bg);flex:0 0 300px;width:300px;padding:20px;overflow-y:auto}.config-panel h2{margin:0 0 14px;font-size:16px}.config-panel h3{text-transform:uppercase;letter-spacing:.5px;opacity:.7;margin:20px 0 8px;font-size:13px}.config-row{flex-direction:column;gap:4px;margin-bottom:12px;display:flex}.config-row label{opacity:.75;font-size:12px}.config-row input,.config-row select{border:1px solid var(--border);background:var(--bg);color:var(--text-h);border-radius:6px;padding:6px 8px;font-size:14px}.config-checkbox{opacity:.85;cursor:pointer;align-items:center;gap:6px;margin-bottom:10px;font-size:12px;display:flex}.op-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.op-row{align-items:center;gap:6px;display:flex}.op-row select{border:1px solid var(--border);background:var(--bg);min-width:0;color:var(--text-h);border-radius:6px;flex:1;padding:5px 4px;font-size:12px}.op-row input{border:1px solid var(--border);background:var(--bg);width:52px;color:var(--text-h);border-radius:6px;padding:5px;font-size:13px}.op-preview{font-family:var(--mono);min-width:30px;color:var(--accent);font-size:13px}.icon-btn{color:var(--text);opacity:.6;cursor:pointer;background:0 0;border:none;padding:4px;font-size:14px;line-height:1}.icon-btn:hover:not(:disabled){opacity:1;color:#dc2626}.icon-btn:disabled{opacity:.25;cursor:not-allowed}.secondary-btn{border:1px solid var(--border);background:var(--bg);color:var(--text-h);cursor:pointer;border-radius:8px;margin-top:10px;padding:7px 12px;font-size:13px}.secondary-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.secondary-btn:disabled{opacity:.4;cursor:not-allowed}.tree-area{flex-direction:column;flex:1;min-width:0;display:flex}.tree-toolbar{border-bottom:1px solid var(--border);background:var(--panel-bg);justify-content:space-between;align-items:center;padding:12px 20px;font-size:13px;display:flex}.tree-view{flex:1;padding:20px;overflow:auto}.tree-view--empty{justify-content:center;align-items:center;display:flex}.tree-canvas{margin:0 auto;position:relative}.tree-edges{pointer-events:none;position:absolute;top:0;left:0}.edge-line{stroke:var(--border);stroke-width:2px}.edge-label-bg{fill:var(--bg);stroke:var(--border);stroke-width:1px}.edge-label-text{font-family:var(--mono);fill:var(--text-h);font-size:12px}.tree-node{border:2px solid var(--border);background:var(--panel-bg);text-align:center;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;width:76px;min-height:56px;padding:4px 6px;display:flex;position:absolute;transform:translate(-50%,-50%)}.tree-node--root{border-color:var(--text-h)}.tree-node--expandable{cursor:pointer}.tree-node--expandable:hover{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent)}.tree-node--collapsible{cursor:pointer}.tree-node--collapsible:hover{border-color:#dc2626;box-shadow:0 0 0 3px #dc262633}.tree-node--end{border-color:var(--end-color);background:color-mix(in srgb, var(--end-color) 12%, var(--panel-bg))}.tree-node.player-first{border-color:var(--accent-2)}.tree-node.player-first .node-mover{color:var(--accent-2)}.tree-node.player-second{border-color:var(--accent)}.tree-node.player-second .node-mover{color:var(--accent)}.tree-node--end.player-first,.tree-node--end.player-second{border-color:var(--end-color)}.node-mover{white-space:nowrap;opacity:.85;font-size:11px;position:absolute;top:-20px;left:50%;transform:translate(-50%)}.node-value{font-family:var(--mono);color:var(--text-h);font-size:18px;font-weight:600}.tree-node--pending{border-style:dashed;border-color:var(--accent)}.node-value-input{border:1px solid var(--accent);background:var(--bg);width:48px;color:var(--text-h);font-family:var(--mono);text-align:center;border-radius:6px;padding:3px 2px;font-size:15px;font-weight:600}.node-value-input:focus{box-shadow:0 0 0 2px color-mix(in srgb, var(--accent) 30%, transparent);outline:none}.node-menu-option--edit{background:var(--bg);color:var(--text-h)}.start-form{display:flex}.tree-node--start{gap:8px;width:auto;min-width:220px;min-height:auto;padding:20px;position:static;transform:none}.tree-node--start label{opacity:.75;font-size:13px}.tree-node--start input{border:1px solid var(--border);background:var(--bg);color:var(--text-h);text-align:center;border-radius:8px;width:100%;padding:8px 10px;font-size:16px}.tree-node--start button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;margin-top:6px;padding:8px 12px;font-size:14px}.tree-node--start button:hover{filter:brightness(1.08)}.node-menu-btn{border:1px solid var(--border);background:var(--panel-bg);width:18px;height:18px;color:var(--text);cursor:pointer;opacity:.35;border-radius:50%;justify-content:center;align-items:center;padding:0;font-size:11px;line-height:1;transition:opacity .1s;display:flex;position:absolute;top:-8px;right:-8px}.tree-node:hover .node-menu-btn,.node-menu-btn:focus-visible{opacity:1}.node-menu-btn:hover{border-color:var(--accent);color:var(--accent)}.node-menu{border:1px solid var(--border);background:var(--panel-bg);z-index:30;border-radius:8px;gap:4px;padding:4px;display:flex;position:absolute;top:-34px;right:-8px;box-shadow:0 4px 12px #0003}.node-menu-option{border:1px solid var(--border);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;width:20px;height:20px;padding:0;font-size:11px;line-height:1;display:flex}.node-menu-option:hover{filter:brightness(1.1);transform:scale(1.08)}.node-menu-option--green{background:#22c55e;border-color:#16a34a}.node-menu-option--cross{color:#fff;background:#ef4444;border-color:#dc2626}.node-menu-option--clear{background:var(--bg);color:var(--text)}.tree-node--marked-green{background:color-mix(in srgb, #22c55e 22%, var(--panel-bg));border-color:#16a34a}.tree-node--marked-cross{background:color-mix(in srgb, #ef4444 10%, var(--panel-bg))}.tree-node--marked-cross:before,.tree-node--marked-cross:after{content:"";pointer-events:none;background:#dc2626;border-radius:2px;width:88%;height:3px;position:absolute;top:50%;left:6%}.tree-node--marked-cross:before{transform:translateY(-50%)rotate(45deg)}.tree-node--marked-cross:after{transform:translateY(-50%)rotate(-45deg)}@keyframes mismatch-pulse{0%,to{box-shadow:0 0 0 3px #f97316}50%{box-shadow:0 0 0 6px #f97316}}.tree-node--mismatch{animation:1.4s ease-in-out infinite mismatch-pulse}.config-panel-backdrop{display:none}@media (width<=768px){.mobile-menu-btn{justify-content:center;align-items:center;display:inline-flex}.config-panel{z-index:110;width:85vw;max-width:320px;transition:transform .2s;position:fixed;top:0;bottom:0;left:0;transform:translate(-100%);box-shadow:4px 0 24px #0000004d}.config-panel--open{transform:translate(0)}.config-panel-close{border:1px solid var(--border);background:var(--bg);width:28px;height:28px;color:var(--text-h);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;font-size:14px;display:flex;position:absolute;top:12px;right:12px}.config-panel-backdrop{z-index:100;background:#00000073;display:block;position:fixed;inset:0}.app-header h1{font-size:18px}}