/* Meaning Lab */
.meaning-lab{padding-bottom:120px}
.meaning-hero{padding:88px 0 54px;max-width:1000px}
.meaning-hero h1{font-size:clamp(3.2rem,7vw,7rem);margin-bottom:24px}
.meaning-view-switch{display:flex;gap:8px;flex-wrap:wrap;margin-top:34px}
.meaning-tab{font:inherit;border:1px solid var(--line);background:transparent;color:var(--muted);padding:10px 14px;cursor:pointer}
.meaning-tab.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.meaning-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.meaning-card{background:var(--paper-2);border:1px solid var(--line);padding:30px;min-width:0}
.meaning-card-wide{grid-column:1/-1}
.meaning-card h2{font-size:clamp(2.1rem,4vw,3.7rem);margin-bottom:18px}
.meaning-card h3{font-size:1.7rem;margin-bottom:18px}
.meaning-card-head{display:flex;justify-content:space-between;gap:24px;align-items:flex-start}
.meaning-note,.meaning-explainer{color:var(--muted);font-size:.86rem}
.sequence-rail{display:grid;grid-template-columns:auto 1fr auto 1fr auto 1fr auto;align-items:center;margin:42px 0 24px}
.sequence-step{min-width:116px;text-align:center}
.sequence-step span{display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--line);border-radius:50%;margin:0 auto 10px;background:var(--paper)}
.sequence-step strong,.sequence-step small{display:block}
.sequence-step small{color:var(--muted);font-size:.74rem;margin-top:4px}
.sequence-step.state-done span{background:var(--moss);border-color:var(--moss);color:white}
.sequence-step.state-now span{background:var(--accent);border-color:var(--accent);color:white}
.sequence-connector{height:1px;background:var(--line);min-width:26px}
.bar-list{display:grid;gap:14px;margin-top:26px}
.bar-row{display:grid;grid-template-columns:minmax(120px,1fr) 2fr auto;gap:12px;align-items:center;font-size:.86rem}
.bar-track{height:10px;background:var(--paper);border:1px solid var(--line);overflow:hidden}
.bar-track i{display:block;height:100%;background:var(--accent)}
.bar-row b{font-variant-numeric:tabular-nums}
.attention-stack{display:grid;gap:12px;margin-top:24px}
.attention-row{display:grid;grid-template-columns:auto 1fr;gap:5px 12px;border-top:1px solid var(--line);padding-top:12px}
.attention-row small{grid-column:2;color:var(--muted)}
.attention-token{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;border:1px solid var(--line);padding:3px 7px;align-self:start}
.attention-now{background:var(--accent);border-color:var(--accent);color:white}
.attention-watch{background:var(--soft-plum,#f2ebf0)}
.relation-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(260px,.7fr);gap:30px;margin-top:28px}
.relation-canvas{position:relative;min-height:360px;border:1px solid var(--line);background:var(--paper);overflow:hidden}
.relation-lines{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.relation-lines path{fill:none;stroke:var(--line);stroke-width:2}
.relation-node{position:absolute;z-index:2;width:130px;min-height:66px;border:1px solid var(--line);background:var(--paper-2);font:inherit;text-align:left;padding:10px 12px;cursor:pointer}
.relation-node strong,.relation-node small{display:block}
.relation-node small{color:var(--muted);font-size:.72rem;margin-top:4px}
.relation-node.is-selected{outline:3px solid var(--accent);outline-offset:2px}
.node-a{left:7%;top:13%}.node-b{left:42%;top:34%}.node-c{left:12%;bottom:11%}.node-d{right:7%;bottom:16%}
.relation-detail{border-left:1px solid var(--line);padding-left:26px}
.meaning-dl{margin:28px 0 0}
.meaning-dl div{border-top:1px solid var(--line);padding:10px 0}
.meaning-dl dt{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.meaning-dl dd{margin:3px 0 0}
.evidence-ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:36px 0}
.evidence-rung{border-top:4px solid var(--line);padding-top:14px}
.evidence-rung span,.evidence-rung small{display:block}
.evidence-rung small{color:var(--muted);margin-top:5px}
.evidence-rung.is-complete{border-color:var(--moss)}
.evidence-rung.is-current{border-color:var(--accent)}
.uncertainty-panel{border-top:1px solid var(--line);padding-top:30px;display:grid;grid-template-columns:1fr 1.4fr;gap:28px;align-items:center}
.confidence-track{height:52px;position:relative;background:var(--paper);border:1px solid var(--line)}
.confidence-range{position:absolute;left:18%;right:22%;top:18px;height:14px;background:var(--soft-plum,#f2ebf0);border:1px solid var(--accent)}
.confidence-point{position:absolute;left:54%;top:10px;width:2px;height:30px;background:var(--ink)}
.meaning-principles{padding:90px 0 0;max-width:820px}
.meaning-principles h2{margin-bottom:22px}
[hidden]{display:none!important}
@media (max-width:800px){
  .meaning-grid{grid-template-columns:1fr}
  .meaning-card-wide{grid-column:auto}
  .sequence-rail{grid-template-columns:1fr;gap:10px;text-align:left}
  .sequence-step{text-align:left;display:grid;grid-template-columns:auto 1fr;column-gap:12px}
  .sequence-step span{grid-row:1/3;margin:0}
  .sequence-connector{height:20px;width:1px;min-width:1px;margin-left:20px}
  .relation-layout{grid-template-columns:1fr}
  .relation-detail{border-left:0;border-top:1px solid var(--line);padding:22px 0 0}
  .evidence-ladder{grid-template-columns:1fr 1fr}
  .uncertainty-panel{grid-template-columns:1fr}
}
@media (max-width:520px){
  .meaning-card{padding:22px}
  .bar-row{grid-template-columns:1fr auto}
  .bar-track{grid-column:1/-1}
  .relation-canvas{min-height:430px}
  .node-a{left:5%;top:8%}.node-b{right:5%;left:auto;top:32%}.node-c{left:5%;bottom:23%}.node-d{right:5%;bottom:5%}
  .evidence-ladder{grid-template-columns:1fr}
}