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@media(max-width:1000px){.layout{grid-template-columns:190px minmax(0,1fr);padding:20px;gap:16px}.grid{grid-template-columns:1fr}.detail{padding:20px}.choices{grid-template-columns:repeat(5,minmax(0,1fr))}model-viewer{height:420px}.explain{min-height:0}.diagram svg{height:210px}}
@media(max-width:650px){header{padding:17px 16px;gap:12px}.brand{font-size:19px}header small{font-size:8px;letter-spacing:1px}.layout{display:block;padding:15px}nav .nav-list,nav .count{display:none}nav input{display:none}.mobile-selector{display:block;width:100%;padding:10px;border:1px solid #d5ded4;background:#fff;border-radius:7px;margin-bottom:20px;color:#315d46}.heading{align-items:flex-start;flex-direction:column;gap:10px}.heading h1{font-size:25px}.heading select{max-width:100%;width:100%}model-viewer,.embed model-viewer{height:330px}.detail{padding:18px}.choices{grid-template-columns:repeat(3,minmax(0,1fr))}.stage-label{font-size:10px}.tag{font-size:15px}.embed .layout{padding:10px}.notice{font-size:12px}footer{padding:0 16px 20px}.downloads{flex-wrap:wrap}}

model-viewer::part(default-progress-bar){display:none}