.stem-experience{margin:40px auto;padding:48px 0;max-width:1100px;color:var(--text,#fff)}.stem-intro{max-width:760px;margin-bottom:40px}.stem-intro h2{font-size:clamp(34px,5vw,60px);line-height:1.06;letter-spacing:-.04em;margin:18px 0}.stem-intro h2 span{color:#eb0800}.stem-intro p,.stem-step p,.stem-card p,.stem-takeaway p{color:var(--muted,#aaa);line-height:1.7}.stem-intro p{font-size:18px}.stem-step{display:flex;align-items:center;gap:18px;margin:28px 0 20px}.stem-step>span{display:grid;place-items:center;flex-shrink:0;width:44px;height:44px;border:1px solid #eb080060;border-radius:50%;color:#ff625c;font-weight:800}.stem-step h3{font-size:22px;margin:0 0 4px}.stem-step p{margin:0}.stem-card{padding:24px;border:1px solid var(--line,#ffffff20);border-radius:18px;background:var(--surface,#171717);min-width:0;position:relative}.stem-card-full{padding:30px;background:linear-gradient(120deg,#eb080014,transparent),var(--surface,#171717)}.stem-tag{font-size:11px;font-weight:800;letter-spacing:.12em;color:var(--stem-color)}.stem-card h3,.stem-card h4{margin:12px 0 8px;font-size:26px}.stem-card p{font-size:14px;margin:0}.stem-wave{position:relative;margin:24px 0;height:80px;overflow:hidden;background:#ffffff03;border-radius:8px}.stem-wave svg{display:block;width:100%;height:100%;fill:var(--stem-color);opacity:.85}.stem-wave-progress{position:absolute;inset:0 auto 0 0;width:0;background:#ffffff13;border-right:2px solid var(--stem-color);pointer-events:none}.stem-controls{display:none;align-items:center;gap:12px}.stem-experience.is-enhanced .stem-controls{display:flex}.stem-controls button{display:grid;place-items:center;flex-shrink:0;width:46px;height:46px;background:var(--stem-color);border:0;border-radius:50%;color:#111;font-size:25px;cursor:pointer}.stem-controls input{min-width:0;flex:1;accent-color:var(--stem-color);cursor:pointer}.stem-controls span{font-size:12px;white-space:nowrap;font-variant-numeric:tabular-nums}.stem-controls button:focus-visible,.stem-controls input:focus-visible{outline:2px solid var(--stem-color);outline-offset:4px}.stem-card audio{width:100%;margin-top:12px}.stem-experience.is-enhanced audio{display:none}.stem-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.stem-grid .stem-card-heading{min-height:154px}.stem-connector{display:flex;align-items:center;justify-content:center;gap:14px;color:var(--muted,#aaa);margin:24px 0;font-size:28px}.stem-connector span{width:80px;height:1px;background:var(--line,#ffffff20)}.stem-takeaway{display:flex;align-items:center;gap:20px;margin-top:24px;padding:24px;border:1px solid var(--line,#ffffff20);border-radius:16px}.stem-takeaway>i{color:#eb0800;font-size:30px}.stem-takeaway p{margin:0}.stem-takeaway strong{color:var(--text,#fff)}.stem-status:empty{display:none}.stem-card .stem-status{margin-top:12px;color:#ff8a84}.stem-card.is-playing{border-color:var(--stem-color)}@media(max-width:800px){.stem-grid{grid-template-columns:1fr}.stem-grid .stem-card-heading{min-height:0}.stem-experience{padding:24px 0}.stem-card,.stem-card-full{padding:20px}.stem-takeaway{align-items:flex-start;padding:20px}.stem-intro p{font-size:16px}.stem-step h3{font-size:20px}}@media(prefers-reduced-motion:reduce){.stem-experience *{scroll-behavior:auto}}
@media(max-width:800px){.stem-experience{padding-left:16px;padding-right:16px;box-sizing:border-box}.stem-step{gap:12px}.stem-intro h2{font-size:clamp(32px,8.5vw,48px)}}