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(max-width:640px){.start-screen{padding:16px}.start-card{width:min(100%,520px);max-height:calc(100dvh - 24px);padding:clamp(34px,7vh,54px) 18px 30px}.start-card h1{margin:clamp(18px,4vh,26px) auto 12px}.primary-button{margin-top:clamp(22px,4vh,30px)}.hero-photo-stack:has(.hero-photo:hover) .hero-photo:not(:hover){opacity:.72!important}}@media (prefers-reduced-motion:reduce){.hero-photo,.hero-photo-glow,.hero-photo figcaption{transition:none!important}}