:root{
  --ink:#18352b;
  --ink-soft:#355247;
  --paper:#f3efe3;
  --paper-2:#e9e2d2;
  --surface:#fffdf8;
  --surface-dark:#18352b;
  --text-on-dark:#fffdf8;
  --text-on-dark-muted:#dce7df;
  --text-on-dark-accent:#c7db8b;
  --moss:#2f6d50;
  --moss-dark:#204d39;
  --lime:#c7db8b;
  --rust:#a64f34;
  --focus-on-light:#8f3f27;
  --focus-on-dark:#f0ad78;
  --line:#cfc7b7;
  --shadow:0 22px 70px rgba(24,53,43,.12);
  --radius:24px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:inherit}
a:hover{text-decoration-thickness:2px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--focus-on-light);outline-offset:3px}
.hero-panel a:focus-visible,.result a:focus-visible,.site-footer a:focus-visible{outline-color:var(--focus-on-dark)}
img,svg{max-width:100%}
.skip{position:absolute;left:-9999px;top:1rem;background:var(--surface);padding:.75rem 1rem;border-radius:999px;z-index:99}
.skip:focus{left:1rem}
.site-header{position:sticky;top:0;z-index:40;background:rgba(243,239,227,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(24,53,43,.14)}
.header-inner{max-width:var(--max);margin:auto;padding:1rem 1.25rem;display:flex;gap:1.25rem;align-items:center;justify-content:space-between}
.brand{display:inline-flex;align-items:center;text-decoration:none;line-height:0;flex:0 1 auto}
.brand img{display:block;width:auto;height:auto;object-fit:contain;object-position:left center}
.brand--header img{width:min(305px,52vw);max-height:82px}
.brand--footer{width:min(350px,78vw);padding:.4rem .7rem;background:var(--surface);border-radius:14px}
.brand--footer img{width:100%;max-height:104px}
.nav{display:flex;gap:.9rem;align-items:center;flex-wrap:wrap}
.nav a{text-decoration:none;font-size:.93rem;font-weight:800;padding:.45rem .6rem;border-radius:999px}
.nav a:hover{background:var(--paper-2);color:var(--ink)}
.nav .nav-cta{background:var(--ink);color:var(--text-on-dark);padding:.55rem .85rem}
.nav .nav-cta:hover{background:var(--moss-dark);color:var(--text-on-dark)}
main{min-height:70vh}
.hero{max-width:var(--max);margin:auto;padding:clamp(3rem,8vw,7rem) 1.25rem 3rem;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:3rem;align-items:end}
.kicker{font-size:.75rem;font-weight:950;letter-spacing:.16em;text-transform:uppercase;color:var(--moss)}
h1,h2,h3{line-height:1.05;letter-spacing:-.045em;margin:.25em 0 .45em}
h1{font-size:clamp(3.2rem,8vw,7.2rem);max-width:10ch}
h2{font-size:clamp(2rem,4vw,3.75rem)}
h3{font-size:1.25rem}
.lede{font-size:clamp(1.1rem,2vw,1.35rem);color:var(--ink-soft);max-width:62ch}
.hero-panel{background:var(--surface-dark);color:var(--text-on-dark);padding:1.6rem;border-radius:var(--radius);box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero-panel:before{content:"LAB 01";display:block;font-size:.72rem;letter-spacing:.22em;color:var(--lime);font-weight:950;margin-bottom:3rem}
.hero-panel:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(255,255,255,.25);border-radius:50%;right:-55px;top:-50px;box-shadow:0 0 0 30px rgba(255,255,255,.04),0 0 0 60px rgba(255,255,255,.03)}
.hero-panel strong{display:block;font-size:2.4rem;line-height:1;letter-spacing:-.05em;margin-bottom:.8rem}
.hero-panel p{color:var(--text-on-dark)}
.hero-panel .small{color:var(--text-on-dark-muted)}
.actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:1.4rem}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.75rem 1rem;border-radius:999px;border:1px solid var(--ink);background:transparent;text-decoration:none;font-weight:900;cursor:pointer}
.btn.primary{background:var(--ink);color:var(--text-on-dark)}
.btn.primary:hover{background:var(--moss-dark);color:var(--text-on-dark)}
.btn.secondary{background:var(--surface);color:var(--ink)}
.btn.secondary:hover{background:var(--paper-2);color:var(--ink)}
.btn.light{background:var(--surface);color:var(--ink);border-color:var(--surface)}
.btn.light:hover{background:var(--paper-2);color:var(--ink);border-color:var(--paper-2)}
.section{max-width:var(--max);margin:auto;padding:3.5rem 1.25rem}
.section.alt{max-width:none;background:var(--paper-2)}
.section.alt>.inner{max-width:var(--max);margin:auto}
.section-head{display:grid;grid-template-columns:.8fr 1.2fr;gap:2rem;align-items:end;margin-bottom:2rem}
.section-head p{color:var(--ink-soft);max-width:64ch}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.45rem;min-height:220px;display:flex;flex-direction:column;justify-content:space-between;text-decoration:none;transition:transform .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .index{font-size:.72rem;font-weight:950;letter-spacing:.15em;color:var(--rust)}
.card p{color:var(--ink-soft)}
.card .linkline{font-weight:900;margin-top:1rem}
.lab-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.lab-grid>div{padding:1.25rem;border-right:1px solid var(--line)}
.lab-grid>div:last-child{border-right:0}
.lab-grid strong{display:block;font-size:1.8rem;line-height:1}
.content{max-width:var(--max);margin:auto;padding:3.5rem 1.25rem 5rem}
.content .lede{margin-bottom:2rem}
.content h2{margin-top:1.4em}
.content p,.content li{color:var(--ink-soft)}
.content a{font-weight:800}
.callout{margin:1.5rem 0;padding:1.2rem 1.3rem;border-left:5px solid var(--rust);background:var(--surface);border-radius:0 18px 18px 0}
.source-list{padding-left:1.1rem}
.tool-shell{max-width:var(--max);margin:auto;padding:3rem 1.25rem 5rem}
.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.2rem,3vw,2rem);box-shadow:var(--shadow)}
.tool-card fieldset{border:0;padding:0;margin:0 0 1.5rem}
.tool-card legend{font-weight:950;font-size:1.05rem;margin-bottom:.65rem}
.option-list{display:grid;gap:.65rem}
.option{display:flex;gap:.7rem;align-items:flex-start;padding:.75rem;border:1px solid var(--line);border-radius:16px;background:#fff}
.option input{margin-top:.25rem}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
label{font-weight:850}
input[type="number"],select{width:100%;margin-top:.35rem;padding:.75rem;border:1px solid var(--line);border-radius:12px;background:white;color:var(--ink);font:inherit}
.result{margin-top:1.5rem;padding:1.3rem;border-radius:18px;background:var(--surface-dark);color:var(--text-on-dark)}
.result p,.result li{color:var(--text-on-dark-muted)}
.result[hidden]{display:none}
.result h2{font-size:1.7rem;margin-top:0}
.result ul{padding-left:1.2rem}
.badge{display:inline-flex;padding:.35rem .6rem;border-radius:999px;background:var(--lime);color:var(--ink);font-size:.75rem;font-weight:950;letter-spacing:.08em;text-transform:uppercase}
.ref-note{font-size:.9rem;color:var(--ink-soft)}
.site-footer{background:var(--surface-dark);color:var(--text-on-dark);margin-top:3rem}
.footer-inner{max-width:var(--max);margin:auto;padding:2.2rem 1.25rem;display:grid;grid-template-columns:1fr auto;gap:2rem}
.footer-inner p{color:var(--text-on-dark-muted);max-width:55ch}
.footer-links{display:grid;gap:.5rem;align-content:start}
.footer-links a{color:var(--text-on-dark)}
.footer-links a:hover{color:var(--text-on-dark-accent)}
.small{font-size:.85rem;color:var(--ink-soft)}
@media(max-width:850px){.hero,.section-head{grid-template-columns:1fr}.grid{grid-template-columns:1fr 1fr}.lab-grid{grid-template-columns:1fr 1fr}.lab-grid>div:nth-child(2){border-right:0}.lab-grid>div{border-bottom:1px solid var(--line)}}
@media(max-width:620px){.header-inner{align-items:center;gap:.5rem}.brand--header img{width:min(205px,50vw);max-height:64px}.nav{justify-content:flex-end;gap:.35rem}.nav .nav-cta{font-size:.78rem;padding:.45rem .6rem}.nav a:not(.nav-cta){display:none}.hero{padding-top:2.5rem}.grid,.form-grid,.lab-grid,.footer-inner{grid-template-columns:1fr}.lab-grid>div{border-right:0}.footer-inner{gap:1rem}}

.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.product-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.35rem;display:flex;flex-direction:column;gap:.7rem}
.product-card .product-type{font-size:.72rem;font-weight:950;letter-spacing:.14em;text-transform:uppercase;color:var(--rust)}
.product-card p{color:var(--ink-soft);margin:.15rem 0}
.product-card .btn{align-self:flex-start;margin-top:auto}
.disclosure{font-size:.88rem;color:var(--ink-soft);margin-top:1rem}
.journal-list{display:grid;gap:1rem}
.journal-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem}
.journal-meta{font-size:.8rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:var(--moss)}
@media(max-width:850px){.product-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.product-grid{grid-template-columns:1fr}}

.product-image-link{display:block;margin:-.15rem -.15rem 1rem;overflow:hidden;border-radius:12px;background:#fff;aspect-ratio:1/1}.product-image{display:block;width:100%;height:100%;object-fit:contain;padding:.6rem}.product-image-link:focus-visible{outline:3px solid currentColor;outline-offset:3px}