.sustainability-page{--accent:#c3d0b9}
.sustainability-page .hero-line{align-items:start;gap:60px}
.sustainability-page .hero-line>div{flex:1;min-width:0}
.sustainability-page .hero h1.architectural-project-title{font-size:clamp(38px,5.4vw,78px)}
.sustainability-page .hero .sustainability-statement{font-size:clamp(26px,3.1vw,44px);line-height:1.18;letter-spacing:-.025em;max-width:none;margin:28px 0 0;color:var(--accent)!important}
.sustainability-page .hero .hero-intro p{max-width:580px;font-size:18px;line-height:1.7;margin:0 0 18px}
.sustainability-page .text-link{display:inline-block;font-size:15px;border-bottom:1px solid #858c83;padding-bottom:5px;color:var(--accent)}
.sustainability-page a:hover{color:#fff}
.sustainability-page a:focus-visible,.sustainability-page summary:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
.sustainability-cover{margin:0 var(--shell)}
.sustainability-cover>img{display:block;width:100%;height:clamp(260px,37vw,570px);object-fit:cover;object-position:center 52%;border-radius:10px}
.sustainability-cover figcaption{display:flex;justify-content:space-between;gap:20px;padding:16px 0;color:#c3c6c9;font-size:13px;line-height:1.6}
.sustainability-cover figcaption a{white-space:nowrap}
.sustainability-nav{display:flex;flex-wrap:wrap;gap:14px 30px;padding:26px var(--shell);border-bottom:1px solid var(--line);font:12px var(--mono);text-transform:uppercase;letter-spacing:.04em}
.sustainability-section{padding:76px var(--shell);scroll-margin-top:105px;border-bottom:1px solid var(--line)}
.section-intro{display:grid;grid-template-columns:1fr 1fr;gap:20px 70px;margin-bottom:42px}
.section-intro>.eyebrow{grid-column:1/-1;margin:0}
.sustainability-page .section-intro h2,.sustainability-contact h2{font-size:clamp(30px,3.4vw,48px);font-weight:500;line-height:1.15;letter-spacing:-.035em;margin:0}
.sustainability-page .section-intro>p{font-size:18px;line-height:1.7;margin:0;max-width:620px;color:#c3c6c9}
.principles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.principles article{border-top:1px solid #737c70;padding-top:20px}
.number{font:13px var(--mono);color:var(--accent)}
.sustainability-page h3{font-size:24px;line-height:1.25;font-weight:500;letter-spacing:-.02em;margin:20px 0 14px}
.sustainability-page .principles p,.sustainability-page .project-body p,.sustainability-page .delivery-steps p{font-size:17px;line-height:1.65;color:#c3c6c9;margin:0 0 20px}
.sustainability-page .principles .deliverable{border-left:2px solid #818d78;padding-left:14px;font-size:14px;color:var(--accent)}
.sustainability-projects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.sustainability-projects article{border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;background:#292b30}
.project-photo{display:block;overflow:hidden}
.project-photo img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;transition:transform .3s}
.project-photo:hover img{transform:scale(1.025)}
.project-body{padding:26px;display:flex;flex-direction:column;flex:1}
.project-body .eyebrow{font-size:10px;line-height:1.6;margin:0}
.project-body h3{font-size:28px}
.project-body dl{font-size:15px;line-height:1.65;margin:0 0 25px}
.project-body dt{color:var(--accent);font-weight:600;margin-top:12px}
.project-body dd{margin:4px 0;color:#c3c6c9}
.project-body .text-link{align-self:flex-start;margin-top:auto}
.delivery-steps{list-style:none;counter-reset:steps;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.delivery-steps li{counter-increment:steps;border-top:1px solid #737c70;padding-top:20px}
.delivery-steps li::before{content:'0' counter(steps);font:32px var(--mono);color:var(--accent)}
.delivery-steps span{font-size:13px;line-height:1.6;color:var(--accent)}
.related-links{display:flex;flex-wrap:wrap;gap:20px 35px;margin-top:36px}
.knowledge-columns{display:grid;grid-template-columns:1fr 1fr;gap:70px}
.knowledge-columns h3{margin-top:0}
.knowledge-link{display:grid;grid-template-columns:1fr auto;gap:8px 20px;padding:22px 0;border-top:1px solid var(--line)}
.knowledge-link strong{font-size:18px;line-height:1.5;font-weight:500}
.knowledge-link span{grid-column:1;font-size:16px;line-height:1.6;color:#c3c6c9}
.knowledge-link b{grid-column:2;grid-row:1;font-weight:400;color:var(--accent)}
.evidence-list{border-top:1px solid var(--line)}
.evidence-list details{border-bottom:1px solid var(--line)}
.evidence-list summary{font-size:23px;padding:23px 40px 23px 0;cursor:pointer;position:relative;list-style:none}
.evidence-list summary::-webkit-details-marker{display:none}
.evidence-list summary::after{content:'+';position:absolute;right:6px;color:var(--accent)}
.evidence-list details[open] summary::after{content:'−'}
.evidence-list details>div{max-width:930px;padding:0 0 28px}
.evidence-list p{font-size:18px;line-height:1.7;color:#c3c6c9;margin:0 0 18px}
.evidence-list a{display:block;color:var(--accent);font-size:16px;line-height:1.6;margin-top:10px;text-decoration:underline;text-underline-offset:4px}
.sustainability-contact{padding:76px var(--shell);text-align:center}
.sustainability-contact p{font-size:18px;line-height:1.7;max-width:660px;margin:22px auto;color:#c3c6c9}
.contact-button{display:inline-block;padding:15px 24px;border:1px solid #a8b09f;border-radius:5px;margin-top:8px}
@media(max-width:1100px){.principles,.delivery-steps{grid-template-columns:repeat(2,minmax(0,1fr))}.sustainability-page .hero-line{gap:32px}.sustainability-projects{grid-template-columns:1fr}.sustainability-projects article{display:grid;grid-template-columns:40% 1fr}.project-photo img{height:100%;aspect-ratio:auto}.section-intro,.knowledge-columns{gap:24px 35px}}
@media(max-width:700px){.sustainability-page .hero-line{flex-direction:column}.sustainability-cover figcaption{flex-direction:column;gap:8px}.sustainability-nav{gap:16px 22px}.sustainability-section{padding-top:48px;padding-bottom:48px}.section-intro,.knowledge-columns,.principles,.delivery-steps{grid-template-columns:1fr}.section-intro{gap:18px;margin-bottom:30px}.sustainability-projects article{display:flex}.project-photo img{aspect-ratio:4/3;height:auto}.project-body{padding:22px}.sustainability-contact{padding-top:48px;padding-bottom:48px}.evidence-list summary{font-size:21px}.sustainability-page .hero .hero-intro p{font-size:17px}.sustainability-cover>img{height:280px}}
@media(prefers-reduced-motion:reduce){.project-photo img{transition:none}}