:root{--bg:#fbfaf6;--surface:#fff;--ink:#1d2a24;--muted:#56645c;--brand:#2b6a4c;--brand-d:#1f4d36;--btn:#2b6a4c;--soft:#e7f0ea;--line:#dfe5e0;--accent:#b8862b;--r:14px;--w:1100px}
@media(prefers-color-scheme:dark){:root{--bg:#111815;--surface:#1a2520;--ink:#e8efe9;--muted:#a3b2a8;--brand:#7fcaa3;--brand-d:#a2e0bf;--soft:#1d3127;--line:#2c3b33;--accent:#e0b35a}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
h1,h2,h3{font-family:ui-serif,Georgia,"Times New Roman",serif;line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(2rem,5vw,3.2rem)}h2{font-size:clamp(1.5rem,3vw,2rem)}h3{font-size:1.2rem}
a{color:var(--brand)}a:hover{color:var(--brand-d)}img{max-width:100%;height:auto}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.wrap{max-width:var(--w);margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-9999px;top:0}.skip-link:focus{left:8px;top:8px;z-index:100;background:var(--surface);padding:8px 14px}
header.site{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}.logo img{height:40px;width:40px;display:block}.logo span{font:700 1.3rem/1 ui-serif,Georgia,serif;letter-spacing:-.01em}.logo span b{color:var(--brand);font-weight:700}
nav ul{list-style:none;margin:0;padding:0;display:flex;gap:4px}
nav a{display:block;padding:10px 14px;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:600}
nav a:hover,nav a:focus-visible{background:var(--soft)}
.has-sub{position:relative}
.sub{position:absolute;left:0;top:100%;min-width:270px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:8px;display:none;box-shadow:0 12px 30px rgba(0,0,0,.14)}
.has-sub:hover .sub,.has-sub:focus-within .sub{display:block}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 12px;color:var(--ink);font:inherit;font-weight:600}
@media(max-width:820px){.menu-btn{display:block}nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--surface);border-bottom:1px solid var(--line);padding:8px 20px 16px}nav.open{display:block}nav ul{flex-direction:column}.sub{position:static;display:block;border:0;box-shadow:none;padding:0 0 0 14px;min-width:0}}
.hero{padding:72px 0 56px;background:linear-gradient(180deg,var(--soft),var(--bg))}
.hero p{max-width:650px;font-size:1.15rem;color:var(--muted)}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.btn{display:inline-block;padding:12px 22px;border-radius:999px;background:var(--btn);color:#fff;text-decoration:none;font-weight:700}
.btn:hover{color:#fff;filter:brightness(1.12)}.btn.alt{background:transparent;color:var(--brand);border:2px solid var(--brand)}
section.blk{padding:44px 0}.lead{color:var(--muted);max-width:640px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;color:inherit;text-decoration:none;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--brand);transform:translateY(-2px);color:inherit}
.card h3{margin-bottom:.3em}.card p{margin:0;color:var(--muted);font-size:.95rem}
.notice{background:var(--soft);border-left:4px solid var(--brand);padding:14px 18px;border-radius:8px}
.prose{max-width:760px}.prose h2{margin-top:1.6em}.meta{color:var(--muted);font-size:.9rem}
.facts{display:grid;grid-template-columns:max-content 1fr;gap:8px 20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.facts dt{font-weight:700}.facts dd{margin:0}
@media(max-width:600px){.facts{grid-template-columns:1fr}}
footer.site{background:#173a2a;color:#dbe8df;padding:40px 0 28px;margin-top:48px}
footer.site a{color:#cfe9da}footer.site h2{font-size:1.1rem;color:#fff}
.fcols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}@media(max-width:700px){.fcols{grid-template-columns:1fr}}
footer.site ul{list-style:none;margin:0;padding:0}footer.site li{margin:.3em 0}
.sponsors{margin-top:28px;border-top:1px solid rgba(255,255,255,.18);padding-top:20px}
.sponsors ul{display:flex;flex-wrap:wrap;gap:20px;align-items:center}
.fine{margin-top:24px;font-size:.88rem;opacity:.85}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero-img{width:100%;height:auto;border-radius:18px;display:block;box-shadow:0 18px 40px rgba(0,0,0,.18)}
@media(max-width:820px){.hero .wrap{grid-template-columns:1fr}.hero{padding:40px 0 32px}}
.grid.three{grid-template-columns:repeat(3,1fr)}
@media(max-width:820px){.grid.three{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.grid.three{grid-template-columns:1fr}}
.card.pic{padding:0;overflow:hidden}
.card.pic img{width:100%;height:auto;display:block;aspect-ratio:16/9;object-fit:cover}
.card.pic .t{padding:16px 18px 18px}
.card.pic h3{font-size:1.05rem}

.blk.alt{background:var(--soft)}
.narrow{max-width:800px}
.blk .narrow h3{margin-top:1.6em;font-size:1.2rem}
.check{list-style:none;padding:0;margin:0 0 1em}
.check li{padding:6px 0 6px 28px;position:relative}
.check li:before{content:"";position:absolute;left:4px;top:15px;width:12px;height:7px;border-left:3px solid var(--brand);border-bottom:3px solid var(--brand);transform:rotate(-45deg)}
details{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin:0 0 10px;padding:0 18px}
summary{cursor:pointer;font-weight:650;padding:14px 0;list-style:none;position:relative;padding-right:28px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";position:absolute;right:0;top:12px;font-size:1.4rem;color:var(--brand);line-height:1}
details[open] summary:after{content:"\2212"}
details p{margin:0 0 16px;color:var(--muted)}
.prose figure{margin:1.4em 0}.prose figure img{display:block;width:100%;height:auto;border-radius:var(--r)}.prose figcaption{color:var(--muted);font-size:.9rem;margin-top:.5em}.prose .hero-img{margin:1em 0 1.4em}.infographic{max-width:560px}.infographic img{border:1px solid var(--line)}
.page{padding:40px 0}.crumbs{font-size:.9rem;color:var(--muted);margin-bottom:14px}.crumbs a{color:var(--muted)}
.prose blockquote.notice{margin:1.2em 0;font-style:normal}
.table-wrap{overflow-x:auto;margin:1.2em 0}.table-wrap table{border-collapse:collapse;min-width:100%}.table-wrap th,.table-wrap td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.related{margin-top:2.4em;padding-top:1.4em;border-top:1px solid var(--line)}
.video{position:relative;aspect-ratio:16/9;margin:1.2em 0;background:var(--soft);border-radius:var(--r);overflow:hidden}.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.footnotes{font-size:.9rem;color:var(--muted)}.footnotes ol{padding-left:1.2em}
.prose p,.prose li{overflow-wrap:anywhere}
.curator{display:grid;grid-template-columns:150px 1fr;gap:20px;align-items:start;margin:0 0 2em;padding-bottom:1.6em;border-bottom:1px solid var(--line)}.curator .avatar{width:150px;height:auto;border-radius:var(--r);display:block}.curator .bio h3{margin-top:0}
@media(max-width:560px){.curator{grid-template-columns:1fr}.curator .avatar{width:120px}}
.prose img.avatar{margin:0}.prose>img{display:block;border-radius:var(--r);margin:1.2em 0}
.contact-form{max-width:560px}.contact-form .form-field{margin-bottom:14px}.contact-form input,.contact-form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font:inherit}.contact-form button.btn{border:0;cursor:pointer;font:inherit;font-weight:700}

@media(max-width:600px){.table-wrap table{min-width:620px}}
.post-card{margin:0 0 2.2em;padding-bottom:1.6em;border-bottom:1px solid var(--line)}.post-card figure{margin:0 0 .8em}.post-card h2{margin-top:0}.post-card h2 a{text-decoration:none;color:var(--ink)}.post-card h2 a:hover{color:var(--brand)}
.video.yt .yt-link{position:absolute;inset:0;display:block}.video.yt img{width:100%;height:100%;object-fit:cover;display:block;margin:0;border-radius:0}.yt-play{position:absolute;left:50%;top:50%;width:68px;height:48px;margin:-24px 0 0 -34px;background:rgba(20,20,20,.82);border-radius:14px;transition:background .15s}.yt-play:after{content:"";position:absolute;left:27px;top:14px;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff}.yt-link:hover .yt-play,.yt-link:focus-visible .yt-play{background:#c4302b}