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p{color:var(--muted-strong);line-height:1.65;max-width:560px;font-size:.95rem}@media(max-width:960px){.hero-grid,.content-grid,.value-grid{grid-template-columns:1fr;gap:32px}.related-panel{position:static}}@media(max-width:680px){.shell,.narrow{width:min(100% - 24px,1180px)}.nav-shell{align-items:flex-start;flex-direction:column;padding:.8rem 0;min-height:auto;gap:.5rem}nav{justify-content:flex-start;gap:.05rem;width:100%;overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;padding-bottom:.4rem}nav a{padding:.5rem .7rem;white-space:nowrap}.tool-hero,.tool-page-head,.plain-page{padding-top:44px}.calculator-heading{flex-direction:column}.unit-toggle{width:100%}.unit-toggle label{flex:1}.unit-toggle span{min-width:0}.form-actions{flex-direction:column}.primary-button,.advanced-settings{width:100%}.tool-card{min-height:auto}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}