.practice-hero{padding:45px 0 25px;max-width:850px}.practice-hero h1{font-size:clamp(43px,5.5vw,71px)}.practice-hero .lede{max-width:650px}.practice-hero>p:last-child{font-size:14px;color:var(--muted)}.practice-table{border-top:1px solid var(--line);padding-top:25px}.challenge-picker{display:grid;grid-template-columns:1fr 1fr;gap:20px}.challenge-picker label,.brain-choices label{display:block;font-size:13px;margin-bottom:7px}.challenge-picker select,.brain-choices select{width:100%;margin-top:6px;white-space:normal;min-width:0}.practice-controls{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.model-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.model-card{border:1px solid var(--line);background:var(--panel);border-radius:18px;overflow:hidden}.model-card.newer{border-color:#78998a}.model-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px}.model-heading h2{font-size:27px;margin:0}.model-heading .eyebrow{font-size:10px;margin-bottom:9px}.model-heading>b{font:23px Georgia,serif;white-space:nowrap}.model-card canvas{width:100%;height:auto;display:block}.model-card>p{margin:14px 20px;font-size:14px;min-height:24px}.model-card>p.decision{font-family:Georgia,serif;font-size:21px}.gallery-note{font-size:13px;color:var(--muted);margin-top:20px}.practice-brain,.practice-results{border:1px solid var(--line);background:var(--panel);padding:18px 24px;border-radius:17px;margin-top:22px}.practice-brain>summary,.practice-results>summary{font:24px/1.3 Georgia,serif}.practice-brain>summary span{font:12px system-ui;color:var(--muted);float:right;margin-top:8px}.practice-brain p,.practice-results p{font-size:14px}.brain-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:20px}.preview-toggle{display:block;padding:14px 0;font-size:14px}.preview-toggle input{width:20px;height:20px;vertical-align:middle}.practice-brain ol{padding-left:20px;font:12px/1.8 ui-monospace,monospace;overflow-wrap:anywhere}.input-table-wrap{overflow-x:auto;margin:15px 0}table{width:100%;border-collapse:collapse;text-align:left;font-size:14px}th,td{padding:10px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:500}td:not(:first-child){font-variant-numeric:tabular-nums}#challenge-note{margin:15px 0;font-size:15px}#watch-models[aria-pressed=true]{background:#dce8d8;border-color:var(--accent)}@media(max-width:600px){.practice-hero{padding-top:30px}.model-pair{grid-template-columns:1fr}.challenge-picker,.brain-choices{grid-template-columns:1fr;gap:14px}.practice-controls button{flex:1 1 140px;font-size:14px}.model-heading{padding:18px}.model-heading h2{font-size:26px}.practice-brain,.practice-results{padding:16px}.practice-brain>summary span{float:none;display:block}.practice-brain>summary,.practice-results>summary{font-size:23px}th,td{font-size:12px;padding:8px}}