.tree-nav{margin:24px 0 32px;border:1px solid var(--line);background:var(--paper)}
.tree-nav-header{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:24px 28px;border-bottom:1px solid var(--line)}
.tree-nav-header h2{font-size:22px;letter-spacing:-.05em;margin:0;font-weight:500}.tree-nav-header p{font-size:13px;color:var(--muted);margin:0}
.tree-nav-layout{display:grid;grid-template-columns:1.3fr 1fr}.tree-nav-diagram{height:510px;position:relative;margin:0 16px}.tree-nav-diagram svg{position:absolute;width:100%;height:100%;inset:0;overflow:visible}.tree-nav-diagram path{fill:none;stroke:var(--line);stroke-width:2;vector-effect:non-scaling-stroke}.tree-nav-diagram .tree-feedback{stroke-dasharray:3 6;stroke-width:1}.tree-nav-diagram .tree-active-path{stroke:var(--accent);stroke-width:3;opacity:0;transition:opacity .25s}
.tree-nav[data-active=core] .tree-path-core,.tree-nav[data-active=choice] .tree-path-choice,.tree-nav[data-active=expression] .tree-path-expression,.tree-nav[data-active=experience] .tree-path-experience{opacity:1}
.tree-nav-node{position:absolute;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;text-align:center;border:0;background:var(--paper);color:var(--ink);cursor:pointer;padding:10px 12px;min-height:90px;font:inherit;max-width:260px;transition:background .2s,color .2s}.tree-nav-node strong{font-size:40px;font-weight:400;line-height:1.2;letter-spacing:-.06em}.tree-node-part{font-size:11px;color:var(--muted);margin-bottom:5px}.tree-node-question{font-size:14px;line-height:1.5;word-break:keep-all;margin-top:7px}.tree-node-core{left:50%;top:77%;width:215px}.tree-node-choice{left:50%;top:49%;width:250px}.tree-node-expression{left:24%;top:23%;width:205px}.tree-node-experience{left:73%;top:13%;width:205px}.tree-nav-node:hover{background:var(--wash)}.tree-nav-node[aria-pressed=true]{background:var(--accent);color:var(--paper)}.tree-nav-node[aria-pressed=true] .tree-node-part{color:inherit;opacity:.8}.tree-nav-node:focus-visible,.tree-nav a:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.tree-feedback-label{position:absolute;right:0;top:60%;font-size:11px;line-height:1.6;color:var(--muted)}
.tree-nav-panel{border-left:1px solid var(--line);padding:38px 32px;align-content:center;min-width:0;background:var(--wash)}.tree-nav-kicker{font-size:12px;color:var(--accent);margin:0 0 18px}.tree-nav-panel h3{font-size:clamp(25px,2.6vw,38px);line-height:1.35;font-weight:500;letter-spacing:-.055em;word-break:keep-all;margin:0 0 16px}.tree-nav-description{font-size:15px;line-height:1.7;color:var(--muted);word-break:keep-all;margin:0 0 28px}.tree-nav-concepts a{display:grid;grid-template-columns:28px 1fr 20px;gap:8px;padding:15px 0;border-top:1px solid #bacabe;text-decoration:none;color:var(--ink);font-size:18px}.tree-nav-concepts a>span:first-child{font-size:11px;padding-top:5px;color:var(--accent)}.tree-nav-concepts a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:5px}.tree-nav-all{display:inline-block;font-size:12px;margin-top:23px;color:var(--accent);text-underline-offset:4px}.tree-nav-note{border-top:1px solid var(--line);padding:15px 28px;margin:0;font-size:12px;color:var(--muted)}
@media(max-width:760px){.tree-nav-header{display:block;padding:20px}.tree-nav-header h2{font-size:20px}.tree-nav-header p{margin-top:8px}.tree-nav-layout{grid-template-columns:1fr}.tree-nav-diagram{height:450px;margin:12px 10px 0}.tree-nav-panel{border-left:0;border-top:1px solid var(--line);padding:26px 22px}.tree-nav-node strong{font-size:34px}.tree-node-question{font-size:12px}.tree-node-core{width:175px}.tree-node-choice{width:205px}.tree-node-expression,.tree-node-experience{width:43%;padding:8px}.tree-node-expression{left:23%;top:23%}.tree-node-experience{left:76%;top:13%}.tree-feedback-label{right:0;font-size:10px}.tree-nav-note{padding:15px 20px;line-height:1.6}}
@media(prefers-reduced-motion:reduce){.tree-nav-node,.tree-nav-diagram .tree-active-path{transition:none}}
.tree-node-experience{top:17%}
.tree-nav-particles .tree-nav-layout{grid-template-columns:1.25fr 1fr}
.particle-note{position:absolute;inset:0;z-index:2;pointer-events:none;color:var(--ink)}
.particle-note[hidden]{display:none}
.particle-note .particle-leader{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.particle-note .particle-leader path{fill:none;stroke:var(--ink);stroke-width:.5;stroke-dasharray:1;stroke-dashoffset:0;animation:particle-leader-in .42s cubic-bezier(.2,.6,.3,1) both}
.particle-note .particle-leader circle{fill:var(--ink)}
.particle-note .particle-keyword{position:absolute;display:block;font-size:clamp(22px,2.4vw,28px);font-weight:400;line-height:1.2;letter-spacing:-.04em;white-space:nowrap;animation:particle-keyword-in .35s .18s ease-out both}
@keyframes particle-leader-in{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}
@keyframes particle-keyword-in{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:reduce){.particle-note .particle-leader path,.particle-note .particle-keyword{animation:none}}
.tree-nav-particles .tree-nav-diagram{height:auto;margin:0;min-width:0}
.particle-stage{position:relative;height:480px;padding:14px 16px 24px}
.particle-tree{display:block;width:100%;height:100%;cursor:crosshair;touch-action:pan-y}
.particle-caption{position:absolute;bottom:12px;left:0;right:0;text-align:center;font-size:10px;letter-spacing:.13em;color:var(--muted);pointer-events:none}
.particle-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--line)}
.tree-nav-particles .tree-nav-node{position:static;transform:none;width:100%;max-width:none;min-height:125px;padding:15px 18px;text-align:left;align-items:flex-start;border-bottom:1px solid var(--line)}
.tree-nav-particles .tree-nav-node:nth-child(odd){border-right:1px solid var(--line)}
.tree-nav-particles .tree-nav-node:nth-child(n+3){border-bottom:0}
.tree-nav-particles .tree-nav-node strong{font-size:26px;line-height:1.2}
.tree-nav-particles .tree-node-part{font-size:12px;margin-bottom:3px}
.tree-nav-particles .tree-node-question{font-size:14px;margin-top:7px}
.tree-nav-particles .tree-nav-node:focus-visible{outline-offset:-4px;outline-color:var(--acid)}
@media(max-width:760px){.tree-nav-particles .tree-nav-layout{grid-template-columns:1fr}.particle-stage{height:auto;aspect-ratio:600/540;padding:10px 8px 22px}.particle-tree{position:absolute;inset:10px 8px 25px;width:calc(100% - 16px);height:calc(100% - 35px)}.particle-caption{font-size:9px;bottom:7px}.tree-nav-particles .tree-nav-node{min-height:133px;padding:14px}.tree-nav-particles .tree-node-question{font-size:14px}.tree-nav-particles .tree-nav-header p{line-height:1.6}}