:root{
  --paper:#f7f7ef;--white:#fdfdf8;--ink:#163831;--body:#41564e;--rule:#c7d1c1;--muted:#51665a;--pale:#e6ecde;--dark:#14342e;--lime:#c5df9a;--mono:Consolas,"Courier New",monospace;--sans:Arial,Helvetica,sans-serif;--serif:Georgia,"Times New Roman",serif;
  font-family:var(--sans);color:var(--ink);background:var(--paper);font-synthesis:none
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:30px}
body{margin:0;-webkit-font-smoothing:antialiased}figure,h1,h2,h3,p,ol{margin:0}
a{color:inherit;text-decoration:none}button,input{font:inherit}img{display:block;max-width:100%}
a:focus-visible,summary:focus-visible{outline:3px solid #458033;outline-offset:5px}
.wrap{width:min(1360px,calc(100% - clamp(40px,9vw,168px)));margin-inline:auto}.skip{position:absolute;left:8px;top:-140px;background:white;color:var(--ink);padding:12px 18px;z-index:12}.skip:focus{top:8px}
.mast{background:var(--paper);border-bottom:1px solid var(--rule)}
.mast-inner{min-height:80px;display:flex;align-items:center;gap:clamp(20px,4vw,60px)}
.brand{display:inline-block;flex-shrink:0}.brand img{width:175px;height:auto}
.mast nav{display:flex;align-items:center;gap:clamp(15px,2.5vw,40px);margin-left:auto}
.mast nav a,.contact-button,.underlink,.primary-link,.foot a{font-size:14px;font-weight:600}
.mast nav a{padding:12px 0}.mast nav a:hover,.foot a:hover{text-decoration:underline;text-underline-offset:5px}
.contact-button{display:inline-flex;align-items:center;gap:22px;border:1px solid #8c9c89;border-radius:24px;padding:10px 16px}
.contact-button:hover{background:var(--pale)}
.hero{padding:clamp(30px,4vw,70px) 0 clamp(34px,4.6vw,80px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,.98fr) minmax(0,1.02fr);align-items:stretch;gap:clamp(28px,4.3vw,82px)}
.hero-copy{display:flex;align-items:flex-start;justify-content:center;flex-direction:column;padding:16px 0}
.kicker,.mini,.register-head,.plate-label,.lab-head,.serial,.family,.composition-key,.index-strip small,.demo-caption,.example-code{font-family:var(--mono)}
.kicker,.mini,.register-head,.plate-label,.lab-head,.index-strip small{font-size:11px;line-height:1.5;letter-spacing:.105em;text-transform:uppercase}
.kicker{display:flex;align-items:center;gap:12px;font-weight:600;color:var(--muted)}.dash{height:2px;width:32px;background:#66974e}
h1,h2{font-weight:500;line-height:1.02;letter-spacing:-.065em}
h1{font-size:clamp(54px,5.6vw,89px);margin:26px 0 22px}h1 em,h2 em{font-family:var(--serif);font-weight:400;letter-spacing:-.055em}
.hero-deck,.chapter-copy>p:not(.kicker),.section-intro>p{font-size:clamp(16px,1.25vw,20px);line-height:1.62;color:var(--body)}
.hero-deck{max-width:48ch}
.primary-link{display:inline-flex;align-items:center;justify-content:space-between;gap:30px;margin-top:30px;padding:15px 20px;border-radius:3px;background:var(--ink);color:#fff}
.primary-link:hover{background:#255448}.primary-link span,.underlink span{font-size:18px}
.hero-figure,.reservoir-figure{min-width:0;background:#102c29;color:#dcebd7;border:1px solid #23433b;display:flex;flex-direction:column}
.plate-label,.lab-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.plate-label{color:#d1e1c8;padding:13px 18px;border-bottom:1px solid #c5ddc32e;font-size:10px}
.hero-figure img,.reservoir-figure img{width:100%;height:auto;margin:auto 0}
figcaption{display:flex;align-items:center;gap:8px;padding:12px 18px;border-top:1px solid #c5ddc32e;font:11px/1.5 var(--mono);color:#d4e0cb}
figcaption span{margin-left:auto;color:#b3c8ba}figcaption i,.lab-head i{width:7px;height:7px;border-radius:50%;background:var(--lime);flex-shrink:0}
.index-strip{border-block:1px solid var(--rule);background:#eef1e7}
.contents{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.contents a{padding:21px clamp(14px,2vw,32px);display:grid;gap:8px;min-width:0;border-left:1px solid var(--rule)}
.contents a:last-child{border-right:1px solid var(--rule)}.contents a:hover{background:#e2e8d9}
.contents small{color:var(--muted);font-size:10px}.contents a>span{font-size:clamp(15px,1.4vw,21px);font-weight:500;line-height:1.4;letter-spacing:-.035em;display:flex;align-items:center;justify-content:space-between;gap:6px}.contents b{font-size:18px;font-weight:500}
.chapter{padding:clamp(64px,7.2vw,112px) 0}
.split{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);align-items:start;gap:clamp(36px,6vw,115px)}
.section-no{display:inline-block;flex-shrink:0;border:1px solid #a4b69c;padding:2px 7px;border-radius:2px;font-weight:500;letter-spacing:.04em}
h2{font-size:clamp(43px,4.7vw,73px)}
.chapter-copy h2{margin:25px 0}.chapter-copy>p:not(.kicker){max-width:45ch}.chapter-copy>p+p{margin-top:15px}
.underlink{display:inline-flex;align-items:center;gap:20px;border-bottom:1px solid #67806a;padding:0 0 5px;margin-top:24px}
.underlink:hover{color:#416b33}.register-head{display:flex;align-items:center;justify-content:space-between;padding:0 0 16px;border-bottom:2px solid var(--ink);color:var(--muted);font-size:10px}
.material-register details{border-bottom:1px solid var(--rule)}
summary{cursor:pointer;list-style:none;display:grid;grid-template-columns:24px 1fr auto 20px;align-items:center;gap:12px;padding:21px 0;min-height:74px}
summary::-webkit-details-marker{display:none}summary:hover .summary-name{color:#557c44}.summary-name{font-size:clamp(19px,1.75vw,27px);font-weight:500;letter-spacing:-.045em}.serial,.family{font-size:10px;color:var(--muted)}
.toggle{position:relative;border:1px solid #9baa97;border-radius:50%;width:20px;height:20px}
.toggle::before,.toggle::after{content:"";position:absolute;inset:8px 4px auto;height:1px;background:var(--ink)}.toggle::after{transform:rotate(90deg)}details[open] .toggle::after{display:none}
details[open] .toggle{background:var(--pale)}.detail-body{padding:0 32px 26px 36px;color:var(--body)}.detail-body>p:first-child{font-size:15px;line-height:1.65;max-width:57ch}
.composition{height:7px;max-width:265px;display:flex;gap:3px;margin-top:20px}.composition i{background:#28584c}.composition i:nth-child(2){background:#8cae72}.composition i:nth-child(3){background:#d4bea1}
.composition-key{font-size:11px;margin-top:12px;letter-spacing:.03em}.composition-key span{color:#889a81;margin:0 6px}
.reservoir{background:#e7eddf;border-block:1px solid var(--rule)}
.section-intro{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(25px,5vw,80px);align-items:center;margin:22px 0 36px}
.section-intro>p{max-width:56ch}.reservoir-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.76fr);gap:clamp(22px,4.2vw,75px);align-items:center}
.reservoir-figure{background:#eef2e8;color:var(--ink);border-color:#97a991}.reservoir-figure .plate-label,.reservoir-figure figcaption{border-color:#bcc9b6;color:var(--body)}.reservoir-figure figcaption span{color:var(--muted)}
.method h3,.applications h3,.contact-directory h3{font-size:clamp(18px,1.4vw,23px);font-weight:550;letter-spacing:-.035em}.method ol{counter-reset:steps;list-style:none;padding:15px 0 0}
.method li{counter-increment:steps;display:grid;grid-template-columns:27px 1fr;gap:8px;border-top:1px solid #b6c4af;padding:16px 0}
.method li::before{content:"0" counter(steps);font:10px/1.7 var(--mono);color:var(--muted)}.method b{font-size:16px;font-weight:600}
.method p,.applications div>p,.evidence>p:not(.mini){font-size:14px;line-height:1.65;color:var(--body);margin-top:5px}
.applications{margin-top:32px;display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:clamp(18px,3vw,52px)}.applications>div{border-top:1px solid #adbfaa;padding:18px 0 0}
.evidence{background:#d6e2c9;border-left:3px solid #739258;padding:17px 22px}.evidence .mini{font-size:9px;color:#355134;margin:0 0 8px}
.tags .split{align-items:center}.tag-demo{background:var(--dark);color:#f3f6e9;padding:clamp(22px,3.2vw,50px);min-width:0;border-radius:2px}
.lab-head{color:#c3d3bd;font-size:10px;padding-bottom:16px;border-bottom:1px solid #ffffff36;margin-bottom:24px}
.tag-demo fieldset{padding:0;margin:0;border:0;min-inline-size:0}.tag-demo legend{font-size:clamp(23px,2.1vw,34px);font-family:var(--serif);line-height:1.12;letter-spacing:-.035em;padding:0}
.demo-instruction,.readout>p:last-child{font-size:14px;line-height:1.55;color:#c5d3c2}.demo-instruction{margin:9px 0 18px}
.tag-demo input{position:absolute;opacity:0;width:1px;height:1px}
.tag-demo label{display:inline-flex;align-items:center;justify-content:center;gap:7px;width:calc(33.333% - 5px);min-height:44px;padding:8px 4px;border:1px solid #829b86;font:10px var(--mono);border-radius:2px;cursor:pointer;color:#c1d0bc}
.tag-demo label span{font:600 12px var(--sans)}.tag-demo input:checked+label{background:var(--lime);color:#17392e;border-color:var(--lime)}
.tag-demo input:focus-visible+label{outline:2px solid white;outline-offset:3px}.tag-demo label:hover{border-color:#fff}
.readouts{margin:19px 0 0}.readout{display:none}#s1:checked~.readouts .r1,#s2:checked~.readouts .r2,#s3:checked~.readouts .r3{display:block}
.signal{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:7px;align-items:stretch;height:76px;padding:10px;background:#0b2823;border:1px solid #496558}
.signal i{background:repeating-linear-gradient(90deg,#6a8575 0 2px,transparent 2px 6px);align-self:end;height:54%;border-block-end:2px solid #93b09b}
.signal i.one{align-self:start;background:repeating-linear-gradient(90deg,#cbe9a0 0 3px,transparent 3px 7px);border-block-end:0;border-top:2px solid #c6e995}
.example-code{color:#b7c9b3;font-size:10px;display:flex;justify-content:space-between;align-items:center;margin:8px 0 21px}.example-code code{font:12px var(--mono);letter-spacing:.15em;color:var(--lime)}
.readout h3{font-size:20px;letter-spacing:-.03em;margin-bottom:6px;font-weight:500}.readout>p:last-child{min-height:44px}
.demo-caption{color:#c1cdbb;font-size:10px;line-height:1.6;padding-top:14px;margin-top:14px;border-top:1px solid #ffffff36}
.contact{background:var(--dark);color:var(--white);padding:clamp(50px,6vw,92px) 0}.contact .kicker{color:#c2d7ba}.contact .dash{background:var(--lime)}
.contact h2 em{color:var(--lime)}.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:6vw;margin-top:22px}
.contact-directory h3{color:#dfe9d5;font-size:18px;margin:4px 0 13px}.contact-directory h3 span{font-weight:400;font-size:13px;color:#b7cbb8}
.contact-directory h3:not(:first-child){margin-top:32px}.contact-directory a{display:grid;grid-template-columns:1fr auto 16px;gap:14px;align-items:center;padding:16px 0;border-top:1px solid #688276}
.contact-directory a:hover,.contact-directory a:focus-visible{color:var(--lime)}.contact-directory a:focus-visible{outline-color:var(--lime)}
.contact-directory a:is([href^="mailto:"],[href^="tel:"]){grid-template-columns:minmax(0,1fr) auto}.contact-directory a span{font-size:clamp(18px,2vw,28px);overflow-wrap:anywhere}.contact-directory b{font-weight:400;grid-column:2;align-self:center}
footer{background:#0d2823;color:#dbe7d3}.foot{padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:13px}.foot a{font-size:12px}
@media(max-width:960px){
  .wrap{width:calc(100% - 60px)}.mast-inner{gap:20px}.mast nav{gap:18px}.mast nav a,.contact-button{font-size:12px}.brand img{width:150px}
  .hero-grid{gap:25px}.hero-deck{font-size:16px}h1{font-size:clamp(43px,5.8vw,58px)}.split{gap:34px;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}
  .reservoir-grid{grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:24px}.method li{padding:12px 0}
  .applications{gap:18px}.evidence{padding:15px}.tag-demo{padding:24px}.contact-grid{grid-template-columns:.8fr 1.2fr}
}
@media(max-width:740px){
  html{scroll-padding-top:16px}.wrap{width:calc(100% - 36px)}.mast-inner{display:grid;grid-template-columns:1fr auto;gap:0;min-height:0;padding-top:13px}.brand img{width:148px}.contact-button{justify-self:end;gap:10px}
  .mast nav{grid-row:2;grid-column:1/-1;margin:8px 0 0;justify-content:space-between;gap:9px;border-top:1px solid var(--rule)}.mast nav a{font-size:12px;padding:12px 0}
  .hero{padding:30px 0}.hero-grid,.split,.section-intro,.reservoir-grid,.contact-grid{grid-template-columns:minmax(0,1fr)}.hero-copy{padding:0}.hero-grid{gap:28px}
  h1{font-size:clamp(44px,9.7vw,68px);margin:16px 0}.hero-deck{max-width:52ch}.primary-link{margin-top:21px;padding:13px 17px}
  .hero-figure{max-width:580px;width:100%}.plate-label,figcaption{padding:9px 12px}.plate-label{font-size:9px}figcaption{font-size:10px}
  .contents{display:block}.contents a,.contents a:last-child{display:flex;align-items:center;gap:12px;border-inline:0;padding:12px 0}.contents a+a{border-top:1px solid var(--rule)}
  .contents small{font-size:9px;letter-spacing:.04em;width:42%;flex-shrink:0}.contents a>span{font-size:15px;flex:1;justify-content:space-between}.contents b{font-size:14px}
  .chapter{padding:54px 0}.split{gap:30px}.chapter-copy h2{margin:16px 0}h2{font-size:clamp(43px,8.4vw,58px)}.kicker{font-size:10px;letter-spacing:.07em;gap:9px}
  .chapter-copy>p:not(.kicker),.section-intro>p{font-size:16px;max-width:55ch}.underlink{margin-top:16px}.section-intro{gap:17px;margin:18px 0 24px}
  .reservoir-grid{gap:22px}.method li{padding:12px 0}.method li:last-child{padding-bottom:0}.applications{margin-top:24px;grid-template-columns:1fr 1fr}.evidence{grid-column:1/-1}
  summary{grid-template-columns:18px 1fr auto 20px;gap:8px;padding:15px 0;min-height:62px}.detail-body{padding:0 0 21px 26px}.summary-name{font-size:20px}
  .tag-demo{padding:24px 18px}.contact-grid{gap:28px}.contact-directory h3 span{display:block;margin-top:4px}.contact-directory a{gap:7px}
}
@media(max-width:430px){
  .contents small{width:39%;font-size:8px}.contents a>span{font-size:14px}
  .family{display:none}summary{grid-template-columns:18px 1fr 20px}.summary-name{font-size:20px}
  .applications{grid-template-columns:1fr}.evidence{grid-column:auto}
  .tag-demo label{font-size:9px;gap:4px}.tag-demo label span{font-size:11px}
  .contact-directory a{grid-template-columns:minmax(0,1fr) 18px}.contact-directory a span,.contact-directory a small{grid-column:1}.contact-directory a b{grid-column:2;grid-row:1/3}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.research-notes{border-block:1px solid #b6c4af;margin-top:27px}.research-notes summary{display:flex;justify-content:space-between;min-height:48px;padding:13px 0;font-size:14px;font-weight:600}.research-notes>p{max-width:84ch;font-size:14px;line-height:1.65;padding:0 0 17px;color:var(--body)}