.building-hero{background:linear-gradient(120deg,rgba(247,251,254,.99),rgba(234,246,255,.96) 52%,rgba(255,243,229,.98))}
.building-hero .sdm-hero__grid{min-height:42rem}
.building-metrics{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1rem}
.building-metric{padding:1rem;border:1px solid var(--sdm-gray-300);border-radius:var(--sdm-radius-lg);background:#fff}
.building-metric strong{display:block;color:var(--sdm-navy-800);font-size:clamp(1.6rem,4vw,2.7rem)}
.building-metric span{color:var(--sdm-gray-600)}
.material-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.material-card{min-height:22rem;display:flex;flex-direction:column;padding:1rem;border:1px solid var(--sdm-gray-300);border-radius:var(--sdm-radius-lg);background:#fff}
.material-card h2{margin:0 0 .5rem;color:var(--sdm-navy-800);font-size:var(--sdm-step-2)}
.material-card p{flex:0 0 auto}
.material-card details{margin-top:auto;padding-top:.75rem;border-top:1px solid var(--sdm-gray-300)}
.material-card summary{cursor:pointer;color:var(--sdm-blue-700);font-weight:850}
.science-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.science-card{padding:1rem;border-left:.35rem solid var(--sdm-orange-600);border-radius:0 var(--sdm-radius-md) var(--sdm-radius-md) 0;background:var(--sdm-gray-050)}
.science-card h2{margin:0 0 .5rem;color:var(--sdm-navy-800);font-size:var(--sdm-step-2)}
.sequence-list{display:grid;gap:.8rem}
.sequence-item{display:grid;grid-template-columns:3.2rem minmax(0,1fr);gap:1rem;padding:1rem;border:1px solid var(--sdm-gray-300);border-radius:var(--sdm-radius-lg);background:#fff}
.sequence-number{width:3rem;height:3rem;display:grid;place-items:center;border-radius:50%;background:var(--sdm-orange-600);color:var(--sdm-navy-900);font-weight:950}
.sequence-item h2{margin:0 0 .35rem;color:var(--sdm-navy-800);font-size:var(--sdm-step-2)}
@media(max-width:74rem){.building-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}.material-grid,.science-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:47.5rem){.building-metrics,.material-grid,.science-grid{grid-template-columns:1fr}.sequence-item{grid-template-columns:1fr}}