.native-problem-statement{font-size:18px;line-height:1.85;color:var(--ink);margin:20px 0 28px;overflow-wrap:anywhere}.native-problem-statement p{margin:0 0 17px}.native-problem-statement p:last-child{margin-bottom:0}.native-problem-statement math,.native-final-answer math{font-size:1.08em}.native-problem-statement math[display=block],.native-final-answer math[display=block]{display:block;max-width:100%;overflow-x:auto;margin:16px 0;padding:8px 0}.native-problem-statement table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:20px 0}.native-problem-statement td,.native-problem-statement th{padding:9px 14px;border:1px solid var(--line);text-align:left}.native-problem-statement th{background:#f4f2e9}.native-problem-statement ol,.native-problem-statement ul{padding-left:25px}.native-problem-statement li{padding-left:5px;margin:10px 0}.native-problem-figures{display:grid;gap:20px;margin:22px 0}.native-problem-figures figure{margin:0;overflow:auto}.native-problem-figures img{display:block;width:auto;max-width:100%;max-height:480px;object-fit:contain}.native-problem-figures figcaption{font-size:12px;line-height:1.6;color:var(--muted);margin-top:10px;max-width:680px}.native-final-answer{font-size:20px;line-height:1.9}.question-source-reference{margin:20px 0}.question-source-reference>summary{font-size:13px;color:var(--muted);cursor:pointer}.question-source-reference .question-source-art{margin-top:12px}.question-source-art:empty{display:none}.question-lab-link{display:inline-flex;gap:8px;align-items:center;color:#bd493e;padding:10px 0;margin:4px 0 8px;font-size:14px;text-decoration:none;border-bottom:1px solid #e4bcb1}.question-lab-link:hover{color:#92392f;border-color:currentColor}.question-lab-link:focus-visible{outline:3px solid var(--aqua);outline-offset:4px}.hint-help-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px}.hint-help-tabs button{font:inherit;font-size:13px;padding:10px 15px;border:1px solid var(--line);border-radius:7px;background:transparent;color:var(--ink);cursor:pointer}.hint-help-tabs button[aria-pressed=true]{border-color:#d98e80;background:#fff2e8;color:#a23f34}.hint-help-tabs button:focus-visible{outline:3px solid var(--aqua);outline-offset:3px}.hint-help-detail>.hint-tier,.hint-help-detail>.help-example,.hint-help-detail>.hint-revealed-solution{margin-top:0}.lab-route-intro{margin:0 0 22px}.lab-route-intro select{max-width:100%}.lab-return-link{display:inline-block;margin:0 0 18px;color:#bc4a3f;font-size:14px}@media(max-width:640px){.native-problem-statement{font-size:17px;line-height:1.8}.native-problem-statement td,.native-problem-statement th{padding:8px}.hint-help-tabs button{flex:1;min-width:110px}}
.native-problem-figures .native-atom-map{min-width:0;max-width:100%;overflow-x:auto;overscroll-behavior-x:contain}
.native-problem-figures .native-atom-map img{width:880px;max-width:none;max-height:none}
.native-problem-figures .native-atom-map-139 img{width:920px}
.native-problem-figures .native-atom-map:focus-visible{outline:3px solid var(--calx-coral,#b95347);outline-offset:3px}
.native-problem-figures .native-atom-map-140 img{width:940px;max-width:none;max-height:none}
.native-problem-figures .native-atom-map-142 img{width:990px;max-width:none;max-height:none}
.native-problem-figures .native-atom-map-143 img{width:1120px;max-width:none;max-height:none}
.native-problem-figures .native-atom-map-144 img{width:1210px;max-width:none;max-height:none}
.native-problem-figures .native-orbital-map-151 img{width:1120px;max-width:none;max-height:none}
.native-problem-figures .native-wedge-dash-map img{width:1080px;max-width:none;max-height:none}
.native-problem-figures .native-lonepair-map img{width:1080px;max-width:none;max-height:none}
.native-problem-figures .native-propane-map img{width:1080px;max-width:none;max-height:none}
.native-problem-figures .native-hexane-propene-map img{width:1080px;max-width:none;max-height:none}
.native-problem-figures .native-butadiene-aspirin-map img{width:1080px;max-width:none;max-height:none}
.native-problem-figures .native-physics-p51-map img{width:680px;max-width:none;max-height:none}