:root{--ink:#17231e;--quiet:#46564c;--paper:#f2f5ef;--white:#fcfdfa;--dark:#0b1512;--line:#cbd5cb;--warm:#ffca77;--mint:#cce6d2;--body:system-ui,sans-serif;--display:Georgia,'Times New Roman',serif;--mono:'Courier New',monospace}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.58 var(--body);-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%}
h1,h2,h3,p,ol,ul,figure{margin-top:0}
h1,h2{font:400 clamp(36px,5.8vw,78px)/.99 var(--display);letter-spacing:-.06em;margin-bottom:22px}
h3{font-size:19px;line-height:1.25;margin-bottom:7px;letter-spacing:-.025em}
p{margin-bottom:14px}
:focus-visible{outline:2px solid #2d8260;outline-offset:4px}
[id]{scroll-margin-top:80px}
.wrap{width:min(100% - 90px,1240px);margin-inline:auto}
.skip{position:fixed;left:12px;top:12px;z-index:100;transform:translateY(-160%);padding:8px 12px;background:var(--white)}
.skip:focus{transform:none}
.site-head{position:sticky;top:0;z-index:10;color:#edf4ed;background:#0c1613;border-bottom:1px solid #8fb7a336}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:22px;min-height:66px}
.brand{display:inline-flex;align-items:center;gap:9px;text-decoration:none;font-size:24px;font-weight:800;letter-spacing:-.07em;white-space:nowrap}
.brand-mark{width:32px;height:32px;display:grid;place-items:center;border:1px solid #92bdab66;color:#bfe4cd;background:#183127;border-radius:5px}
.brand-mark svg{width:18px;height:18px}
.head-links{display:flex;gap:26px;margin-left:auto;font-size:14px;color:#c6d6cb}
.head-links a,.foot a{text-decoration:none}
.head-links a:hover,.foot a:hover{text-decoration:underline;text-underline-offset:4px}
.button{display:inline-flex;gap:9px;align-items:center;justify-content:center;min-height:44px;padding:9px 15px;font-size:14px;line-height:1.2;font-weight:700;text-decoration:none;border:1px solid transparent;border-radius:4px}
.button:hover{filter:brightness(1.1)}
.button-solid{color:#221c13;background:var(--warm);border-color:#ffe2ad;box-shadow:0 3px 0 #ab7840,0 9px 21px -12px #fbad55}
.button-light{background:var(--white);color:var(--ink);border-color:var(--line)}
.button-ghost{color:inherit;border-color:#9cb9a779}
.mobile-nav{display:none}
.hero{position:relative;isolation:isolate;overflow:hidden;background:#0c1311;color:#f4f7ef}
.hero-art,.hero::after{position:absolute;inset:0;z-index:-1;pointer-events:none}
.hero-art img{width:100%;height:100%;display:block;object-fit:cover;object-position:50% 56%}
.hero::after{content:'';background:linear-gradient(90deg,#0a100ffb 0%,#0b1412f2 20%,#0b1412bc 37%,#0b141200 72%),linear-gradient(0deg,#0b1412 0%,transparent 24%)}
.hero-stage{min-height:clamp(590px,calc(100svh - 67px),850px);display:grid;align-items:center;position:relative;padding-block:50px 87px}
.hero-copy{max-width:min(580px,57vw)}
.label{display:flex;align-items:center;gap:9px;font:700 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:#345f4d;margin-bottom:15px}
.label::before{content:'';display:block;width:18px;height:1px;background:currentColor}
.hero .label,.dark .label{color:#a6d4b8}
.hero h1{font-size:clamp(62px,7.5vw,119px);line-height:.91;margin:0 0 23px}
.hero h1 em,.dark h2 em{color:var(--warm);font-weight:400}
.lead{font-size:clamp(17px,1.55vw,21px);line-height:1.55;max-width:48ch;color:var(--quiet)}
.hero .lead,.dark .lead{color:#c9d6cd}
.hero .button-ghost{background:#0b1512ca}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:23px}
.hero-caption{position:absolute;bottom:21px;left:0;right:0;display:flex;justify-content:space-between;gap:12px;padding-top:11px;border-top:1px solid #c5dbc64d;color:#b9c9bc;font:11px var(--mono)}
.band{padding:72px 0;border-bottom:1px solid var(--line)}
.white{background:var(--white)}
.dark{background:var(--dark);color:#f4f7ef;border-color:#334139}
.split{display:grid;grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr);gap:30px clamp(32px,6vw,85px);align-items:start}
.section-intro{max-width:46ch;color:var(--quiet)}
.dark .section-intro{color:#c0cfc4}
.number-list{list-style:none;margin:0;padding:0;border-top:1px solid #94a89a}
.number-list li{border-bottom:1px solid var(--line)}
.number-list a,.step{display:grid;grid-template-columns:30px minmax(0,1fr) 21px;gap:12px;padding:16px 0;align-items:start;text-decoration:none}
.number-list a:hover h3,.articles a:hover h3{color:#2d674d;text-decoration:underline;text-underline-offset:4px}
.number-list p,.step p{margin:0;color:var(--quiet);font-size:14px;max-width:65ch}
.index{font:700 11px var(--mono);color:#476953;padding-top:5px}
.arrow{font-size:20px;line-height:1.15}
.case-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:12px;margin-top:26px}
.case{min-width:0;padding:23px;background:#172820;border:1px solid #59746565;border-radius:6px}
.case.featured{background:linear-gradient(135deg,#254738,#16271f 85%);box-shadow:3px 4px 0 #07110d}
.case p{color:#c5d8cb;font-size:14px}
.case a{display:inline-block;margin-top:6px;color:#ffdc9e;text-underline-offset:4px;font-size:14px;font-weight:700}
.case .index{color:#a5c8b1}
.articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:24px 0}
.articles a{display:block;padding:16px;background:var(--white);border:1px solid var(--line);border-radius:5px;text-decoration:none}
.articles a p{font:12px var(--mono);color:var(--quiet);margin:0}
.steps{border-top:1px solid #94a89a}
.step{grid-template-columns:30px minmax(0,1fr);border-bottom:1px solid var(--line)}
.calc-teaser{background:#dcebdd;border-top:1px solid #c5d6c9}
.calc-teaser .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
.calc-teaser h2{font-size:clamp(35px,4.7vw,63px);margin:0 0 11px}
.calc-teaser p{margin:0;color:var(--quiet)}
.calc-teaser .button{flex:none}
.foot{padding:25px 0;background:#08120f;color:#c6d4c9;font-size:13px}
.foot .wrap{display:flex;justify-content:space-between;align-items:center;gap:17px;flex-wrap:wrap}
.contact .actions{margin-top:19px}
.page-head{padding:65px 0 58px;background:radial-gradient(ellipse at 86% 40%,#1f4032,#0d1915 65%);color:#f2f6ef}
.crumbs{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 24px;color:#bccec3;font-size:13px}
.crumbs a{text-underline-offset:3px}
.page-head h1{font-size:clamp(43px,6vw,76px);max-width:17ch}
.page-head .lead{color:#ccdad2;max-width:60ch}
.page-section{padding:52px 0;border-bottom:1px solid var(--line)}
.page-section h2{font-size:clamp(30px,4.4vw,53px)}
.detail-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}
.detail-grid article{padding:19px;background:var(--white);border:1px solid var(--line);border-radius:5px}
.detail-grid p{font-size:14px;color:var(--quiet);margin-bottom:0}
.prose{max-width:75ch}
.prose h3{margin-top:24px}
.related-links{display:flex;gap:10px;flex-wrap:wrap}
.calc-shell{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:15px}
.calc-fields,.calc-results{border:1px solid var(--line);border-radius:6px;padding:22px;background:var(--white)}
.calc-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}
.calc-fields label{display:flex;flex-direction:column;gap:7px;font-size:14px;font-weight:600}
.calc-fields input{width:100%;min-height:46px;border:1px solid #a5b7ab;border-radius:4px;background:#f7faf6;color:var(--ink);padding:7px 10px;font:16px var(--body)}
.calc-results{background:#162a20;color:#ecf8ed}
.calc-results dt{font-size:13px;color:#c7dfcf}
.calc-results dd{margin:0 0 14px;font-size:clamp(20px,3vw,32px);line-height:1.15;color:#ffdb9c;font-weight:650;overflow-wrap:anywhere}
.calc-note{margin-top:16px;color:var(--quiet);max-width:75ch}
@media(max-width:980px){.wrap{width:min(100% - 52px,1240px)}.head-links{gap:14px}.case-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.case.featured{grid-column:1/-1}}
@media(max-width:740px){
 .wrap{width:calc(100% - 34px)}.head-inner{min-height:57px;gap:10px}.head-links{display:none}.head-inner>.button{margin-left:auto;font-size:12px;padding-inline:9px;min-height:39px}
 .mobile-nav{display:block;position:relative}.mobile-nav summary{cursor:pointer;font-size:13px;min-height:39px;display:flex;align-items:center;color:#d3e0d6}.mobile-nav div{position:absolute;right:0;top:100%;min-width:188px;background:#14261d;border:1px solid #799987;border-radius:4px;padding:6px}.mobile-nav a{display:block;padding:9px;text-decoration:none}
 .hero-stage{align-items:start;min-height:650px;padding:42px 0 270px}.hero-copy{max-width:100%}.hero-art{top:30%}.hero-art img{object-position:67% 55%}
 .hero::after{background:linear-gradient(180deg,#0b1310 0%,#0b1310 29%,#0b1310e8 44%,#0b131025 61%,transparent 78%,#0b1310 100%)}
 .hero h1{font-size:clamp(48px,13vw,76px);margin-bottom:16px}.hero .lead{max-width:38ch;font-size:16px}.hero .actions{margin-top:16px}
 .hero-caption{font-size:9px;bottom:12px}.hero-caption span:last-child{display:none}
 .band,.page-section{padding:44px 0}.page-head{padding:42px 0}.split,.calc-shell{grid-template-columns:minmax(0,1fr);gap:15px}
 .case-grid,.detail-grid,.articles{grid-template-columns:minmax(0,1fr)}.case.featured{grid-column:auto}
 .calc-teaser .wrap{display:block}.calc-teaser .button{margin-top:16px}.foot .wrap{gap:10px}.calc-fields,.calc-results{padding:14px}
}
@media(max-width:370px){.brand{font-size:20px}.brand-mark{width:27px;height:27px}.head-inner{gap:7px}.hero-caption{font-size:8px}.calc-fields{grid-template-columns:minmax(0,1fr)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}