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@media(max-width:820px){.board-stage,.board-stage:hover{--rx:0deg!important;--ry:0deg!important;--lift:0px;transform:perspective(1000px) rotateX(var(--rx)) rotateY(var(--ry));will-change:auto}.feature.tilt-ready,.feature.tilt-ready:hover{transform:none;will-change:auto}.board-toolbar,.board-wrap,.board-caption,.feature.tilt-ready .feature-icon,.feature.tilt-ready .timeline,.feature.tilt-ready .chat-preview,.feature.tilt-ready .mini-ranking{transform:none}}
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/* Layout and motion refinement */
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@media(max-width:820px){.hero:before{inset:70px -20px 22%;background-size:34px 34px}.feature,.feature-large,.feature-wide{height:auto;min-height:0}.feature{padding-block:30px}.feature-large{display:block}.feature:not(.feature-large):not(.feature-wide){min-height:380px}.mini-ranking{margin-top:26px}.connection{margin-top:32px}.feature-wide{display:grid;grid-template-columns:1fr}.feature-grid>.reveal{transition-delay:0s}.board-stage:after{inset:54px 10px 45px}.download-meta{flex-wrap:wrap}.toast{white-space:normal;text-align:center}}
@media(max-width:390px){.feature:not(.feature-large):not(.feature-wide){min-height:350px}.timeline button{width:39px;height:39px}.timeline button.current{box-shadow:0 0 0 5px #ededf0}.install-button{min-width:0}}
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/* Mobile-first fit and touch polish */
#experience,#features,#download{scroll-margin-top:86px}.button,.nav-action,.board-toolbar button,.intersection{-webkit-tap-highlight-color:transparent;touch-action:manipulation}.hero-meta dt{white-space:nowrap}.install-button:focus-visible,.nav-action:focus-visible,.text-link:focus-visible,.brand:focus-visible{outline:2px solid #171719;outline-offset:3px}
@media(max-width:820px){.site-header{padding-top:env(safe-area-inset-top)}.nav{height:58px}.hero{padding-top:calc(82px + env(safe-area-inset-top));padding-bottom:42px}.hero h1{font-size:clamp(50px,17vw,62px)}.hero-slogan{margin:15px 0 13px}.hero-lede{line-height:1.72}.hero-actions{margin-top:22px}.hero-meta{margin-top:26px;padding-top:20px}.hero-meta div{padding-right:10px;margin-right:10px}.hero-meta dt{font-size:15px}.hero-meta dd{font-size:10.5px}.board-stage{margin-top:36px}.board-wrap{padding:5.1%}.board-caption{min-height:18px;margin-top:11px}.statement{padding-block:72px}.features{padding-block:76px}.section-heading{margin-bottom:38px}.section-heading>p:last-child{font-size:15px;margin-top:15px}.feature-grid{gap:12px}.feature,.feature-large,.feature-wide{padding:26px}.feature:not(.feature-large):not(.feature-wide){min-height:0}.feature-icon{margin-bottom:32px}.feature-large .feature-icon{margin-bottom:30px}.feature h3{font-size:25px}.feature>p,.wide-copy>p{font-size:14px;line-height:1.7}.levels{margin-top:24px}.detail-band{padding-block:72px}.detail-inner{gap:38px}.detail-list p{padding:17px 0}.download{padding-block:86px}.download-icon{width:76px;height:76px;border-radius:17px;margin-bottom:25px}.download>p:not(.eyebrow){font-size:15px;line-height:1.7;margin:18px 0 25px;max-width:420px}.install-button{width:min(100%,280px);min-height:50px}.footer-inner{gap:18px}}
@media(max-width:390px){.shell{width:calc(100% - 28px)}.hero{padding-top:calc(78px + env(safe-area-inset-top))}.hero h1{font-size:52px}.hero-lede{font-size:14px}.hero-meta div{margin-right:7px;padding-right:7px}.hero-meta dt{font-size:14px}.hero-meta dd{font-size:10px}.board-stage{margin-top:30px;padding:9px}.board-toolbar{height:41px}.board-wrap{padding:5%}.board-caption{font-size:11px}.feature,.feature-large,.feature-wide{padding:23px}.feature h3{font-size:23px}.levels span{font-size:11px}.detail-inner h2,.download h2,.section-heading h2{font-size:36px}.download-meta{gap:7px;font-size:11px}.footer-inner .brand{width:100%}.footer-inner>a:last-child{margin-left:auto}}
@media(max-width:340px){.nav-action{display:none}.hero-actions .text-link{display:none}.hero-meta{gap:0}.hero-meta div{margin-right:5px;padding-right:5px}.hero-meta dt{font-size:13px}.feature,.feature-large,.feature-wide{padding:20px}.timeline button{width:34px;height:34px;font-size:10px}.download-meta i{display:none}.download-meta{column-gap:12px;row-gap:6px}}