@media(max-width:980px){.hero-grid{grid-template-columns:1fr}.lab-visual{min-height:300px}.card-grid{grid-template-columns:repeat(2,1fr)}.ingredient-grid{grid-template-columns:repeat(2,1fr)}.calc-grid{grid-template-columns:1fr 1fr}.content-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:2fr 1fr 1fr}}
@media(max-width:720px){.nav{display:none;position:absolute;left:16px;right:16px;top:72px;background:var(--card);border:1px solid var(--line);padding:14px;border-radius:16px;box-shadow:var(--shadow);flex-direction:column}.nav.open{display:flex}.menu-btn{display:block}.nav-actions select{max-width:105px}.hero{padding-top:44px}.hero-copy{font-size:17px}.calc-grid{grid-template-columns:1fr}.card-grid,.ingredient-grid{grid-template-columns:1fr}.section{padding:54px 0}.lab-panel{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.section-head{align-items:start;flex-direction:column}}