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@media(max-width:680px){.site-header{flex-wrap:wrap;padding:1rem 0}.site-header nav{width:100%;margin:0;overflow-x:auto}.hero{grid-template-columns:1fr;padding:2rem 1.1rem;min-height:auto}.hero h1{font-size:clamp(2.8rem,14vw,4.4rem)}.fact-stack,.phone-stage{grid-column:1}.phone-stage{margin:1rem auto -7rem;width:min(250px,76vw)}.marker-strip{margin-top:1rem}.marker-strip span{min-height:70px;padding:.8rem}.method{grid-template-columns:1fr}.worksheet>div{grid-template-columns:42px 95px 1fr}.section-heading{grid-template-columns:1fr}.screens{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:1rem}.screens figure{min-width:78vw;scroll-snap-align:start}.screens figure:nth-child(2){margin-top:0}.guide-grid,.related .guide-grid{grid-template-columns:1fr}.guide-card{min-height:auto}.mini-routine{grid-template-columns:1fr 1fr}.mini-routine span:nth-child(2){border-right:0}.mini-routine span:nth-child(-n+2){border-bottom:1px solid var(--ink)}footer{grid-template-columns:1fr}.store-row{display:grid}.store-link,.store-disabled{width:194px;height:75px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.guide-card{transition:none}}