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h2{font-size:1.9rem;line-height:1.2}.troubleshooting{max-width:920px}.timeline{list-style:none;padding:0;border-left:2px solid #d7c6ba}.timeline li{position:relative;padding:0 0 25px 28px}.timeline li::before{content:"";position:absolute;left:-7px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--brick)}.guide-groups{display:grid;gap:70px}.guide-group{display:grid;grid-template-columns:.55fr 1.45fr;gap:50px}.guide-group-head{position:sticky;top:110px;align-self:start}.guide-group-head h2{font-size:2rem;margin:0}.guide-group-head p{color:var(--muted)}.guide-links{border-top:1px solid var(--line)}.guide-links article{padding:22px 0;border-bottom:1px solid var(--line)}.guide-links h3{font-size:1.25rem;line-height:1.35;margin:0 0 8px}.guide-links p{color:var(--muted)}.topic-list{padding-top:20px}.topic-row{display:grid;grid-template-columns:60px .75fr 1.25fr;gap:30px;align-items:center;padding:26px 0;border-bottom:1px solid var(--line)}.topic-number{font-weight:800;color:var(--brick)}.topic-row img{border-radius:18px;aspect-ratio:3/2;object-fit:cover}.topic-row h2{font-size:1.7rem;line-height:1.25}.big-points{padding-left:0;list-style:none;margin:26px 0}.big-points li{padding:12px 0;border-bottom:1px solid var(--line)}.article-page{padding:30px 0 10px}.article-header{text-align:center;padding:40px 0 28px}.article-header h1{font-size:clamp(2.3rem,5vw,4.2rem);line-height:1.08;letter-spacing:-.03em;margin:0 auto 18px;max-width:15ch}.article-header .lead{max-width:68ch;margin:0 auto}.article-meta{margin-top:20px;display:flex;justify-content:center;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:.84rem}.article-figure{margin:20px -80px 40px}.article-figure img{width:100%;border-radius:34px;aspect-ratio:16/9;object-fit:cover}.article-body{font-size:1.06rem}.article-body section{margin:0 0 38px}.article-body h2{font-size:1.65rem;line-height:1.3;margin:0 0 12px}.article-body p{color:#49413d}.article-footer{display:flex;justify-content:space-between;gap:12px;padding:26px 0;border-top:1px solid var(--line)}.related-articles{padding-bottom:20px}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.related-grid article{padding:20px;background:var(--mist);border-radius:18px}.related-grid h3{line-height:1.35}.faq-list{max-width:920px}.faq-item{border-bottom:1px solid var(--line)}.faq-item button{width:100%;display:flex;justify-content:space-between;gap:20px;text-align:left;padding:20px 0;border:0;background:transparent;font-weight:750;font-size:1.05rem}.faq-item button b{color:var(--brick);font-size:1.3rem}.faq-answer{padding:0 0 20px;color:var(--muted)}.faq-answer[hidden]{display:none}.prose-page{padding:28px 0 70px}.prose-page header{padding:28px 0}.prose-page h1{font-size:clamp(2.3rem,5vw,4rem);line-height:1.1;margin:0 0 18px}.wide-image{width:100%;border-radius:32px;margin:20px 0 44px;aspect-ratio:16/9;object-fit:cover}.prose-page 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@media (max-width:900px){.header-inner{grid-template-columns:auto auto 1fr}.nav-toggle{display:inline-flex}.main-nav{position:absolute;left:20px;right:20px;top:68px;background:var(--paper);box-shadow:var(--shadow);border:1px solid var(--line);padding:12px;border-radius:18px;display:none;flex-direction:column}.main-nav.is-open{display:flex}.main-nav a{padding:10px 12px}.search-open{justify-self:end}.cover-grid{grid-template-columns:1fr;grid-template-areas:"copy" "visual" "notes"}.cover-copy{padding-bottom:0}.cover-copy h1{max-width:14ch}.cover-notes{grid-template-columns:1fr}.cover-notes article,.cover-notes article+article{padding:16px 0;border-left:0;border-bottom:1px solid var(--line)}.split-heading,.device-strip,.dark-feature-grid,.two-column-list,.intro-grid,.device-hero,.topic-detail-grid,.selected-lane,.split-content,.platform-comparison,.guide-group{grid-template-columns:1fr}.horizontal-lanes{grid-auto-columns:minmax(280px,66%)}.mosaic-grid{grid-template-columns:1fr}.mosaic-item.item-0{grid-row:auto}.mosaic-item.item-0 img{min-height:320px}.mosaic-item.item-2{grid-template-columns:1fr}.filter-strip{grid-template-columns:1fr}.staggered-item,.staggered-item:nth-child(even){grid-template-columns:44px .9fr 1.1fr}.staggered-item:nth-child(even) img{order:initial}.two-device-columns{grid-template-columns:1fr}.guide-group-head{position:static}.topic-row{grid-template-columns:50px .9fr 1.1fr}.article-figure{margin-left:0;margin-right:0}.related-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.2fr .8fr}.footer-grid>div:last-child{grid-column:1/-1;display:grid;grid-template-columns:repeat(5,auto);gap:12px}}
@media (max-width:680px){.container,.narrow{width:min(calc(100% - 28px),var(--content))}.header-inner{min-height:68px;gap:10px}.brand-mark small{display:none}.brand-mark img{width:36px;height:36px}.search-open,.nav-toggle{font-size:.84rem;padding:7px 10px}.cover-story{padding-top:24px}.cover-copy h1{font-size:2.75rem}.cover-copy .lead,.lead{font-size:1rem}.search-row{flex-direction:column}.search-row .button{width:100%}.cover-visual img{border-radius:24px}.section{padding:54px 0}.lead-story{grid-template-columns:1fr}.lead-story img{min-height:280px}.horizontal-lanes{grid-auto-columns:86%}.device-strip{gap:24px}.mosaic-item img,.mosaic-item.item-0 img{min-height:240px}.clean-list a{grid-template-columns:1fr;gap:4px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:last-child{grid-column:auto;display:flex}.footer-bottom{flex-direction:column}.page-intro{padding-top:28px}.page-intro h1{font-size:2.65rem}.staggered-item,.staggered-item:nth-child(even){grid-template-columns:36px 1fr;gap:14px}.staggered-item img,.staggered-item:nth-child(even) img{grid-column:2;order:initial}.staggered-item>div:last-child{grid-column:2}.steps-grid{grid-template-columns:1fr}.two-device-columns article{padding:34px 18px}.topic-row{grid-template-columns:34px 1fr;gap:14px}.topic-row img,.topic-row div{grid-column:2}.article-header{text-align:left}.article-header h1{margin-left:0}.article-header .lead{margin-left:0}.article-meta{justify-content:flex-start}.related-grid{grid-template-columns:1fr}.article-footer{flex-direction:column}.article-footer .button{width:100%}.compact-callout{align-items:flex-start;flex-direction:column}.search-dialog{padding:28px 20px}.error-panel h1{font-size:2.3rem}}
@media (max-width:400px){.cover-copy h1,.page-intro h1{font-size:2.25rem}.horizontal-lanes{grid-auto-columns:92%}.button-row{flex-direction:column}.button-row .button{width:100%}.site-header .container{width:min(calc(100% - 18px),var(--content))}}