:root{--ink:#102028;--muted:#5d6b73;--line:#d7e2e0;--blue:#1663ff;--green:#0a7b63;--gold:#b17618;--bg:#f7fbfa;--panel:#fff}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.5}a{color:inherit}
.topbar{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;gap:24px;align-items:center;padding:14px 28px;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}.brand small{display:block;color:var(--muted);font-size:12px}.mark{display:grid;place-items:center;width:36px;height:36px;background:var(--ink);color:#fff;border-radius:6px;font-weight:800}
nav{display:flex;gap:6px;flex-wrap:wrap}nav a{padding:9px 11px;text-decoration:none;border-radius:6px;color:var(--muted);font-size:14px}nav a:hover,nav a.active{background:#e9f2ef;color:var(--ink)}
.hero{min-height:72vh;display:grid;align-items:end;padding:88px 28px 40px;background:linear-gradient(180deg,rgba(7,31,43,.35),rgba(7,31,43,.78)),url('/assets/oyster.jpg') center/cover;color:#fff}
.hero-inner{max-width:1120px;margin:auto;width:100%}.hero h1{font-size:clamp(42px,7vw,84px);line-height:.95;margin:0 0 18px;letter-spacing:0}.hero p{max-width:760px;font-size:20px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 16px;border-radius:6px;text-decoration:none;background:#fff;color:var(--ink);font-weight:700}.btn.secondary{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.65)}
.band{padding:56px 28px}.wrap{max-width:1120px;margin:auto}.section-title{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:22px}.section-title h2{font-size:32px;margin:0}.section-title p{max-width:620px;color:var(--muted);margin:0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}.card{display:block;min-height:210px;padding:20px;background:var(--panel);border:1px solid var(--line);border-radius:8px;text-decoration:none;transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease,background .16s ease}.card:hover,.card:focus{transform:translateY(-4px);border-color:#61a895;box-shadow:0 18px 38px rgba(16,32,40,.16);background:#fbfffd;outline:0}.card strong{display:block;font-size:20px;margin:9px 0}.card p{color:var(--muted);margin:0 0 18px}.card em{font-style:normal;color:var(--green);font-weight:800}.kicker{color:var(--gold);font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.media-card{padding:0;overflow:hidden}.media-card img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block;border-bottom:1px solid var(--line);transition:transform .22s ease,filter .22s ease}.media-card:hover img,.media-card:focus img{transform:scale(1.035);filter:saturate(1.08) contrast(1.03)}.media-card .kicker,.media-card strong,.media-card p,.media-card em{margin-left:18px;margin-right:18px}.media-card .kicker{display:block;margin-top:16px}.media-card em{display:block;margin-bottom:18px}.featured-blog{display:grid;grid-template-columns:minmax(0,1fr) minmax(310px,.72fr);gap:18px;margin-bottom:18px}.featured-blog .article-copy{min-height:330px}.featured-blog figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 16px 38px rgba(16,32,40,.10)}.featured-blog img{width:100%;height:100%;min-height:330px;object-fit:cover;display:block}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}.panel{background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px}.panel h3{margin-top:0}.list{display:grid;gap:10px}.pill{display:inline-flex;padding:6px 9px;border-radius:999px;background:#e7f4ef;color:#0b6d55;font-weight:700;font-size:12px;margin:3px}.content{max-width:900px}.content h1{font-size:42px}.content p{color:var(--muted)}.gate{border-left:4px solid var(--gold);background:#fff8eb}.danger{border-left-color:#b6422e;background:#fff1ee}
.impact-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:-34px;position:relative}.impact-strip a,.impact-strip div{display:block;padding:18px;background:#fff;border:1px solid var(--line);border-radius:8px;text-decoration:none;box-shadow:0 14px 30px rgba(16,32,40,.12)}.impact-strip strong{display:block;color:var(--green);font-size:28px;line-height:1}.impact-strip span{display:block;margin-top:5px;color:var(--muted);font-weight:750}.impact-band{background:#f0f7f4}.impact-model{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.impact-tile{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px;box-shadow:0 12px 28px rgba(16,32,40,.10)}.impact-tile.primary{background:#0d3029;color:#fff;border-color:#0d3029}.impact-tile strong{display:block;font-size:29px;line-height:1;color:var(--green);margin:7px 0}.impact-tile.primary strong{color:#fff}.impact-tile p{margin:0;color:var(--muted)}.impact-tile.primary p{color:#d7eee7}.ecosystem-reset,.market-panel{margin-top:18px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px;box-shadow:0 12px 28px rgba(16,32,40,.08)}.ecosystem-reset h3,.market-panel h3{margin:0 0 8px}.ecosystem-reset p,.market-panel p{margin:0;color:#40515b;font-size:18px;line-height:1.65}.market-panel{display:grid;grid-template-columns:1.05fr .95fr;gap:20px;align-items:start}.market-list{display:flex;gap:8px;flex-wrap:wrap}.market-list span{display:inline-flex;padding:8px 10px;border-radius:999px;background:#e7f4ef;color:#0a6d58;font-weight:850;font-size:13px}.market-note{grid-column:1/-1;border-top:1px solid var(--line);padding-top:16px}.gtm-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.gtm-step{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px;box-shadow:0 10px 24px rgba(16,32,40,.08)}.gtm-step b{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#e7f4ef;color:var(--green);margin-bottom:12px}.species-showcase{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.species-showcase a{display:block;position:relative;min-height:230px;border-radius:8px;overflow:hidden;text-decoration:none;background:#102028;color:#fff}.species-showcase img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;opacity:.74;transition:transform .22s ease,opacity .22s ease}.species-showcase span{position:absolute;left:16px;right:16px;bottom:14px;font-weight:900;font-size:19px;text-shadow:0 2px 10px rgba(0,0,0,.45)}.species-showcase a:hover img,.species-showcase a:focus img{transform:scale(1.05);opacity:.9}
.article-hero{padding:34px 28px;background:#edf5f2}.article-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.78fr);gap:22px;align-items:stretch}.article-copy{display:flex;flex-direction:column;justify-content:center;min-height:390px;padding:34px;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 16px 38px rgba(16,32,40,.10)}.article-copy h1{font-size:clamp(38px,5.6vw,66px);line-height:1;margin:12px 0;letter-spacing:0}.article-copy p{font-size:18px;color:#40515b;max-width:780px}.article-hero figure,.media-grid figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 16px 38px rgba(16,32,40,.10)}.article-hero img{width:100%;height:100%;min-height:390px;object-fit:cover;display:block}.article-hero figcaption,.media-grid figcaption{padding:10px 12px;color:var(--muted);font-size:13px;font-weight:700}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px;align-items:start}.article-body{background:#fff;border:1px solid var(--line);border-radius:8px;padding:34px;box-shadow:0 12px 30px rgba(16,32,40,.08)}.article-section{padding:4px 0 24px;border-bottom:1px solid var(--line)}.article-section:last-child{border-bottom:0;padding-bottom:0}.article-section h2{font-size:28px;line-height:1.15;margin:0 0 12px}.article-section p,.article-body>p{font-size:17px;line-height:1.72;color:#40515b;margin:0 0 15px}.article-side{position:sticky;top:88px;display:grid;gap:12px}.metric{display:block;padding:18px;background:#fff;border:1px solid var(--line);border-radius:8px;text-decoration:none;box-shadow:0 10px 24px rgba(16,32,40,.08);transition:transform .16s ease,border-color .16s ease}.metric:hover{transform:translateY(-2px);border-color:#9bc7bd}.metric strong{display:block;font-size:28px;color:var(--green);line-height:1}.metric span{display:block;margin-top:6px;color:var(--muted);font-weight:750}.metric.calc{background:#0d3029;color:#fff;border-color:#0d3029}.metric.calc strong{color:#fff;font-size:30px}.metric.calc span{color:#d7eee7}.metric.calc small{display:block;margin-top:10px;color:#fff;font-weight:850}.alt{background:#eef5f2}.media-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.media-grid img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
footer{padding:28px;border-top:1px solid var(--line);display:flex;gap:14px;justify-content:center;flex-wrap:wrap;color:var(--muted);background:#fff;text-align:center}
@media(max-width:900px){.article-hero-grid,.article-layout,.media-grid,.featured-blog,.gtm-grid,.species-showcase,.impact-strip,.impact-model,.market-panel{grid-template-columns:1fr}.article-side{position:static}.article-hero img{min-height:260px}.featured-blog img{min-height:240px}.impact-strip{margin-top:0}}
@media(max-width:760px){.topbar{position:static;align-items:flex-start;flex-direction:column}.split{grid-template-columns:1fr}.hero{min-height:64vh}.band{padding:38px 18px}.article-hero{padding:22px 18px}.article-copy,.article-body{padding:24px}.article-copy{min-height:0}}