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@media(max-width:430px){main,.site-footer{margin-left:18px;margin-right:18px}.header-inner{padding:0 18px;gap:20px}.brand{font-size:20px}.brand-mark{width:27px;height:27px;font-size:22px}.header nav{gap:14px}.nav-link{font-size:11px}.mistakes-icon{font-size:23px}.mistakes-nav .count{min-width:22px;height:22px}.mistakes-nav{gap:4px}.hero h1{font-size:50px}.hero-copy>p{font-size:13px;max-width:345px}.hero-tags span{font-size:10px;padding:5px 8px}.panel{padding:21px}.section-top h2{font-size:20px}.topic-chip{font-size:11px;padding:8px 11px}.study-card{grid-template-columns:1fr;display:block}.study-card h2{font-size:29px;max-width:250px}.steps{margin-bottom:23px;gap:16px}.study-card .btn{font-size:12px}.question-card{padding:22px 18px}.question-card h1{font-size:21px;line-height:1.45;margin-top:16px}.option{font-size:13px;min-height:64px;align-items:flex-start}.option-letter{margin-top:1px;width:26px;height:26px}.option-status{font-size:0;width:15px;margin-top:4px}.option.correct .option-status:after{content:'✓';font-size:16px}.option.wrong .option-status:after{content:'×';font-size:18px}.feedback p{font-size:12px}.feedback{padding:16px}.feedback-heading{font-size:13px}.instruction{font-size:10px;line-height:1.7}.score-row{font-size:10px;gap:15px}.q-topic{font-size:9px}.question-bottom{margin-top:18px}.page-title{font-size:33px}.page-intro{font-size:13px}.resume-banner{flex-wrap:wrap}.resume-banner>div{flex:1;min-width:150px}.site-footer{gap:12px}.site-footer>span:last-child{text-align:right}.eyebrow{font-size:10px}.result-panel{padding:22px}.lesson summary{padding:18px}.lesson summary h2{font-size:13px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}}
@media(max-width:360px){.header-inner{gap:12px}.brand{font-size:18px}.brand-mark{width:25px;height:25px;font-size:20px;margin-right:6px}.header nav{gap:11px}.mistakes-icon{display:none}.hero h1{font-size:46px}.hero-tags{gap:5px!important}.hero-tags span{font-size:9px}.section-top{gap:9px}.small-index{font-size:9px}}