:root{--ink:#18222d;--muted:#5b6775;--bg:#fbfaf7;--card:#fff;--line:#e8e4db;--accent:#0f6b5c;--accent-2:#e6f3ef;--warn:#8a4b00;--warn-bg:#fff5e3;--max:780px;--wide:1120px;--r:16px;--shadow:0 1px 2px rgba(20,30,40,.04),0 6px 24px rgba(20,30,40,.06);
--serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font:17px/1.7 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-underline-offset:3px}a:hover{text-decoration:none}
.ic{width:22px;height:22px;flex:none;vertical-align:-5px}.ic.sm{width:16px;height:16px;vertical-align:-3px;margin-right:6px}.ic.h{width:24px;height:24px;margin-right:10px;color:var(--accent);vertical-align:-4px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:6px 10px;z-index:9}
header.site{background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.bar{max-width:var(--wide);margin:0 auto;padding:12px 24px;display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:8px;font-weight:750;font-size:19px;color:var(--ink);text-decoration:none;letter-spacing:-.01em}.brand span{color:var(--accent)}
nav.top{display:flex;flex-wrap:wrap;gap:4px}
nav.top a{font-size:14.5px;color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:99px;display:inline-flex;align-items:center}
nav.top a:hover{background:var(--accent-2);color:var(--accent)}
.notice{background:var(--warn-bg);color:var(--warn);font-size:13.5px;text-align:center;padding:7px 16px;border-bottom:1px solid #f1dfbd}
main{max-width:var(--max);margin:0 auto;padding:32px 24px 72px}main.wide{max-width:var(--wide)}
.crumbs{font-size:13.5px;color:var(--muted);margin-bottom:10px}.crumbs a{color:var(--muted)}
h1,h2{font-family:var(--serif);letter-spacing:-.015em;font-weight:700}
h1{font-size:clamp(32px,5.2vw,52px);line-height:1.08;margin:.15em 0 .35em}
h2{font-size:clamp(23px,3vw,28px);margin:2em 0 .6em;line-height:1.2}
h3{font-size:19px;margin:1.4em 0 .4em}
.lede{font-size:clamp(18px,2.2vw,21px);color:#36414d;line-height:1.55;max-width:46ch}
.meta{font-size:14px;color:var(--muted)}
.chip{display:inline-flex;align-items:center;font-size:13px;font-weight:650;letter-spacing:.02em;padding:5px 12px;border-radius:99px;background:#fff;color:var(--c,var(--accent));border:1px solid rgba(0,0,0,.06);text-decoration:none}
.badge{display:inline-flex;align-items:center;font-size:12.5px;font-weight:650;padding:3px 10px;border-radius:99px;background:var(--accent-2);color:var(--accent);line-height:1.5}
.badge.low{background:#fdecec;color:#9b2c2c}.badge.mid{background:#fff1d9;color:#8a4b00}.badge.ev{background:#fff;color:var(--ink);border:1px solid var(--line)}
.meter{display:inline-flex;gap:3px;vertical-align:middle;margin-right:6px}.meter i{width:7px;height:14px;border-radius:2px;background:#e3dfd6}.meter i.on{background:var(--accent)}
/* hero */
.hero{position:relative;overflow:hidden;background:#fbf8f0;border-bottom:1px solid var(--line)}
.hero .hbg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:right center}
.hero .in{position:relative;max-width:var(--wide);margin:0 auto;padding:clamp(48px,9vw,120px) 24px clamp(56px,9vw,128px)}
.hero h1{max-width:13ch}
.hero .lede{max-width:34ch}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#fff;font-weight:650;padding:12px 20px;border-radius:99px;text-decoration:none;box-shadow:0 4px 14px rgba(15,107,92,.25)}
.btn .ic.sm{margin:0}.btn.ghost{background:#fff;color:var(--accent);box-shadow:none;border:1px solid var(--line)}.btn:hover{filter:brightness(1.07)}
/* stats */
.stats{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 0}.stats span{background:#fff;border:1px solid var(--line);border-radius:99px;padding:5px 14px;font-size:14px;color:var(--muted)}.stats b{color:var(--ink);font-size:16px;margin-right:4px}
.stats.big{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:-48px 0 30px;position:relative}
.stats.big span{display:flex;align-items:center;gap:10px;border-radius:var(--r);padding:16px 18px;box-shadow:var(--shadow);font-size:14.5px}.stats.big .ic{color:var(--accent)}.stats.big b{font-size:24px;font-family:var(--serif)}
/* panels, callouts */
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:6px 26px 18px;margin:26px 0;box-shadow:var(--shadow)}
.panel h2{margin-top:.9em;font-size:22px}
.panel.split{display:grid;grid-template-columns:1.1fr 1fr;gap:28px;align-items:center}
.diagram{width:100%;height:auto}
.callout{display:flex;gap:14px;align-items:flex-start;border:1px solid #cfe6de;background:var(--accent-2);padding:16px 20px;border-radius:var(--r);margin:24px 0}
.callout>.ic{color:var(--accent);margin-top:3px}
.callout.warn{border-color:#f0d9b0;background:var(--warn-bg)}.callout.warn>.ic{color:#c77700}
.tldr{background:#fff;border-radius:var(--r);border:1px solid var(--line);border-left:5px solid var(--accent);padding:16px 22px;margin:0 0 22px;box-shadow:var(--shadow)}
.tldr p{margin:.35em 0;font-size:18px}.tldr .meta{font-size:13.5px}.tlh{font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;font-weight:700;color:var(--accent);display:flex;align-items:center}
/* key fact tiles */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:22px 0}
.tile{display:flex;gap:12px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.tile>.ic{color:var(--accent);background:var(--accent-2);border-radius:10px;padding:7px;width:36px;height:36px}
.tl{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:650}.tv{display:block;font-size:15px;line-height:1.45;margin-top:2px}
/* evidence ladder */
.ladder ol{list-style:none;padding:0;margin:14px 0 6px;display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.ladder li{background:#f1eee7;color:var(--muted);font-size:13px;font-weight:600;padding:12px 10px 10px;border-radius:10px;text-align:center;position:relative;line-height:1.3}
.ladder li:first-child{border-radius:14px 6px 6px 14px}.ladder li:last-child{border-radius:6px 14px 14px 6px}
.ladder li.on{background:var(--accent);color:#fff}.ladder li.on:nth-child(1){background:#7fbfae}.ladder li.on:nth-child(2){background:#3f9a86}.ladder li.on:nth-child(3){background:#1f7d6b}
.ladder li.cur{box-shadow:0 0 0 3px #fff,0 0 0 5px var(--accent)}
.ladder-note.neg{color:#9b2c2c;font-weight:600;font-size:14px;margin:8px 0 0}
.evsteps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.evstep{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;border-top:5px solid #7fbfae}.evstep.l4{border-top-color:#0f6b5c}.evstep.l3{border-top-color:#1f7d6b}.evstep.l2{border-top-color:#3f9a86}
.evstep .ic{color:var(--accent);display:block;margin-bottom:8px}.evstep strong{display:block;font-size:15px}.evstep small{color:var(--muted);font-size:14px}
/* lists */
.twocol{display:grid;grid-template-columns:1fr 1fr;gap:18px}.twocol .panel{margin:8px 0}
.ilist{list-style:none;padding:0;margin:8px 0}.ilist li{display:flex;gap:10px;margin:10px 0;font-size:15.5px;line-height:1.55}
.ic.li{width:20px;height:20px;padding:3px;border-radius:99px;margin-top:3px}
.ilist.ok .ic.li{background:#e0f2ea;color:#0f6b5c}.ilist.no .ic.li{background:#f3eee6;color:#7a6a55}.ilist.rk .ic.li{background:#fdecec;color:#b23a3a;border-radius:6px}
.panel.good{border-top:4px solid #3f9a86}.panel.bad{border-top:4px solid #c9bfae}.panel.risk{border-top:4px solid #d46a5f}.panel.legal{border-top:4px solid var(--c)}
.panel.good h2 .ic{color:#0f6b5c}.panel.bad h2 .ic{color:#7a6a55}.panel.risk h2 .ic{color:#b23a3a}
/* page heroes */
.phero,.hubhero{background:linear-gradient(135deg,#fffdf8 0%,var(--l) 100%);border-bottom:1px solid var(--line)}
.phero .in{max-width:calc(var(--max) + 120px);margin:0 auto;padding:30px 24px 28px;display:grid;grid-template-columns:1fr 1.1fr;gap:24px;align-items:center}
.phero .part{border-radius:var(--r);box-shadow:var(--shadow);background:#fff}
.phero h1{margin:.3em 0 .25em}.hbadges{display:flex;flex-wrap:wrap;gap:8px}
.hubhero .in{max-width:var(--wide);margin:0 auto;padding:34px 24px;display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center}
.hubhero img{border-radius:22px;box-shadow:var(--shadow)}.hubhero h1{font-size:clamp(30px,4.4vw,46px)}
/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;margin:18px 0}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r);text-decoration:none;color:var(--ink);overflow:hidden;transition:transform .15s,box-shadow .15s,border-color .15s}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#cfd8d3}
.card img{width:100%;aspect-ratio:10/3;object-fit:cover;background:#f4f1ea}.ccard img{aspect-ratio:4/3}
.cbody{display:flex;flex-direction:column;gap:6px;padding:14px 16px 16px;flex:1}
.card strong{font-size:17.5px;font-family:var(--serif)}
.card small{color:var(--muted);font-size:14px;line-height:1.5}
.crow{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px}
.ccard .chip{align-self:flex-start;background:var(--l);border:0;color:var(--c);font-size:14px}
.more{margin-top:auto;font-size:13.5px;font-weight:650;color:var(--c);display:flex;align-items:center;gap:4px}.more .ic.sm{margin:0}
/* bars */
.bars{margin:14px 0 6px}.bar-row{display:grid;grid-template-columns:190px 1fr 30px;gap:12px;align-items:center;margin:9px 0;font-size:14px}
.bt{background:#f1eee7;border-radius:99px;height:14px;overflow:hidden}.bf{display:block;height:100%;border-radius:99px;background:#7fbfae;min-width:0}
.bf.l4{background:#0f6b5c}.bf.l3{background:#1f7d6b}.bf.l2{background:#3f9a86}.bf.l0{background:#d46a5f}.bn{font-weight:700;text-align:right}
/* tables, faq, sources */
table{width:100%;border-collapse:separate;border-spacing:0;font-size:14.5px;margin:14px 0;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
th,td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}tr:last-child td{border-bottom:0}
th{background:#f6f3ec;font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.tablewrap{overflow-x:auto}
.faqs details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0;margin:10px 0;overflow:hidden}
details summary{cursor:pointer;font-weight:650;padding:14px 46px 14px 18px;list-style:none;position:relative}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";position:absolute;right:18px;top:10px;font-size:22px;color:var(--accent);font-weight:400}
details[open] summary::after{content:"–"}details>p{margin:0;padding:0 18px 16px;color:#36414d}
ol.sources{font-size:14px;padding-left:22px;color:var(--muted)}ol.sources li{margin:6px 0}
.related{display:flex;flex-wrap:wrap;gap:8px}.related a{display:inline-block;padding:6px 14px;border-radius:99px;background:#fff;border:1px solid var(--line);text-decoration:none;font-size:14.5px}.related a:hover{border-color:var(--accent)}
footer.site{border-top:1px solid var(--line);background:#fff;font-size:14px;color:var(--muted)}
footer.site .bar{display:block;padding:28px 24px}footer.site p{margin:.4em 0}
@media (max-width:860px){.phero .in,.hubhero .in,.panel.split{grid-template-columns:1fr}.twocol{grid-template-columns:1fr}.hubhero img{max-width:420px}}
@media (max-width:600px){body{font-size:16px}main{padding:24px 18px 56px}.bar{padding:10px 16px}nav.top{flex-wrap:nowrap;overflow-x:auto;width:100%;scrollbar-width:none}nav.top a{white-space:nowrap}
.hero .hbg{object-position:70% center;opacity:.45}.hero .in{padding:44px 18px 72px}.stats.big{grid-template-columns:1fr 1fr;margin-top:-40px}.stats.big span{padding:12px}
.ladder ol{grid-template-columns:1fr 1fr}.ladder li{border-radius:10px!important}.bar-row{grid-template-columns:120px 1fr 24px;font-size:13px}.panel{padding:4px 18px 14px}}
@media print{.notice,nav.top,header.site{position:static}.hero .hbg{display:none}}