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@media print{@page{size:A4;margin:12mm}html[data-theme]{--bg:#fff;--surface:#fff;--ink:#000;--muted:#333;--line:#bbb;--accent:#155969;--soft:#eef6f6}body{font-size:10pt;background:white}.toolbar,.screen-only,.skip-link,footer{display:none!important}main{max-width:none;padding:0}.hero,.intro,.formula-sheet,.exercise{border-radius:0;padding:3mm;margin-bottom:3mm}.hero{border-top-width:2px}h1{font-size:22pt}h2{font-size:13pt}.hero .lead{font-size:11pt}.identity{margin:3mm 0}.chips{margin-top:2mm}.formula-grid{gap:0}.formula-grid p{margin:1mm 0}.formula-sheet p,.intro p{margin:1.5mm 0}.exercise{break-before:page;border:none;padding:0}figure{grid-template-columns:1fr 1fr;padding:2mm;margin:3mm 0;break-inside:avoid}svg{max-height:45mm}figcaption{font-size:9pt}textarea{display:none}.paper-answer{display:block;height:50mm;background:repeating-linear-gradient(to bottom,transparent 0,transparent 7mm,#ccc 7mm,#ccc 7.2mm)}textarea.has-answer{display:block;resize:none;overflow:visible;min-height:50mm;border:1px solid #bbb}textarea.has-answer+.paper-answer{display:none}.design-grid{grid-template-columns:1fr 1fr}.design-grid svg{max-height:75mm}.criteria,table{break-inside:avoid}a{color:#155969;text-decoration:none}.hero a{display:none}.identity input{border:0;border-bottom:1px solid #888;border-radius:0;padding:1mm}.katex{font-size:1em}}