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@media(max-width:1000px){.unit-nav{gap:7px}.unit-nav button{padding:13px 10px}.unit-nav button.active{padding:12px 9px}.unit-nav strong{font-size:13px}.unit-nav small{font-size:10px}.summary-grid{grid-template-columns:1fr 1fr}.relation{grid-template-columns:1fr 1fr 1fr}.relation>span{font-size:12px;gap:6px}.relation>strong{padding:13px;font-size:14px}}
@media(max-width:650px){.page-intro .eyebrow{font-size:8px}.unit-nav{grid-template-columns:1fr 1fr;gap:9px;margin-bottom:23px}.unit-nav button{padding:14px 12px}.unit-nav button.active{padding:13px 11px}.unit-nav strong{font-size:15px}.unit-nav small{font-size:11px}.unit-nav button:last-child{grid-column:auto}.unit-heading{display:block;padding-bottom:20px}.unit-heading h2{font-size:26px}.unit-heading>span{display:block;margin-top:8px;font-size:12px}.lesson-nav{display:block}.lesson-nav button{display:block;width:100%;margin-bottom:8px;font-size:13px}.material-tabs{grid-template-columns:1fr 1fr 1fr;gap:6px}.material-tabs button{display:block;padding:10px 9px;min-height:115px}.material-tabs button.active{padding:9px 8px}.material-tabs .tab-symbol{margin-bottom:8px;width:26px;height:26px;font-size:18px}.material-tabs strong{font-size:12px}.material-tabs small{font-size:10px}.material-title{font-size:24px;line-height:1.4}.summary-grid{grid-template-columns:1fr}.summary-item p{font-size:15px}.material-lead{font-size:15px}.section-label{display:flex;align-items:center;gap:12px}.section-label h2{font-size:21px}.print-summary{font-size:10px;white-space:nowrap}.question-heading{display:block}.question-total{display:block;margin-top:7px!important}.remember,.worked-example{padding:17px}.remember p,.worked-example p{font-size:15px}table{font-size:12px;min-width:400px}th,td{padding:10px 11px}.relation{display:flex;flex-direction:column;gap:8px}.relation>strong{width:100%;font-size:15px}.relation>span{font-size:13px;min-height:24px}.relation-arrow{transform:rotate(90deg)}.exam-setup select{display:block;margin:8px 0 0}.practice-tabs{gap:11px}.practice-tabs button{font-size:11px}.practice-tabs span{font-size:10px}.workbench{gap:15px}}
@page{size:A4;margin:13mm}
@media print{body{background:#fff!important;color:#111;font-size:11pt;line-height:1.4}header,.preview,.page-intro,.unit-nav,.unit-heading,.lesson-nav,.material-tabs,.section-label,.practice-section,footer{display:none!important}main{max-width:none;margin:0}.study-section{margin:0}.material-content{border:0!important;min-height:0}.summary-panel{padding:0;background:white!important}.material-title{font-size:20pt;line-height:1.2;margin-bottom:9pt}.poster-kicker{font-size:8pt}.material-lead{font-size:10.5pt;line-height:1.45;margin-bottom:12pt}.summary-grid{grid-template-columns:1fr 1fr;gap:10pt}.summary-item{break-inside:avoid;padding:9pt 10pt;background:white!important;border:1px solid #bbb}.summary-item:before{display:none}.summary-item h4{font-size:11pt;margin-bottom:4pt}.summary-item p{font-size:10pt;line-height:1.4}.remember,.worked-example{break-inside:avoid;margin-top:10pt;padding:8pt 10pt;background:white!important;border:1px solid #aaa;border-left:3px solid #555}.remember p,.worked-example p{font-size:10pt;line-height:1.4}.remember>strong,.worked-example>strong{font-size:8pt}.table-wrap{overflow:visible;margin-top:12pt}table{font-size:9pt;min-width:0;line-height:1.35}caption{font-size:11pt}th,td{padding:6pt 8pt;border-color:#aaa}th{font-size:8.5pt;background:white!important}tr{break-inside:avoid}thead{display:table-header-group}.own-question{break-inside:avoid;padding:10pt;margin-top:10pt}.own-question p{font-size:10pt}.own-question textarea{height:70pt}.privacy-note{font-size:8pt!important}.summary-item.highlight{outline:0}}
@media print{.own-question{padding:7pt 9pt;margin-top:8pt}.own-question p{font-size:9pt;line-height:1.3;margin:4pt 0}.own-question label,.own-question .privacy-note{display:none}.own-question textarea{height:43pt;min-height:0;font-size:9pt;margin-top:5pt;padding:5pt}}