:root{--ink:#20241f;--muted:#6c7169;--paper:#f6f5f0;--white:#fff;--bronze:#ac855b;--bronze-light:#d2b28c;--line:#dcded6;--dark:#191d19;--ease:cubic-bezier(.22,.68,0,1.05)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:115px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;-webkit-font-smoothing:antialiased}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}img{display:block;max-width:100%;height:auto}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:400}p{line-height:1.75}button{color:inherit}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}::selection{color:#fff;background:#8b6843}:focus-visible{outline:3px solid 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@media(min-width:1600px){.wrap{width:min(1360px,calc(100% - 160px))}.hero{height:760px}.hero h1{font-size:116px}.service-photo{height:360px}}
@media(max-width:1150px){.wrap{width:calc(100% - 64px)}.main-nav{gap:20px}.brand-name{font-size:16px}.brand img{width:70px}.header-inner>.btn{padding:13px}.planner-layout,.detail-split{gap:48px}.service-grid{gap:16px}.service-photo{height:270px}.footer-grid{gap:30px}.faq-wrap{gap:55px}.contact-layout{gap:50px}.hero-lines{right:32px}.brand-name small{font-size:7px}.trust-item{padding-left:18px;gap:10px}}
@media(max-width:900px){.main-nav{position:absolute;top:88px;left:0;right:0;background:var(--dark);padding:25px 32px 35px;display:none;flex-direction:column;align-items:stretch;gap:0;border-bottom:1px solid #ffffff30}.main-nav.is-open{display:flex}.main-nav>a{font-size:18px;padding:20px 0;border-bottom:1px solid #ffffff18}.menu-toggle{display:block}.header-inner>.btn{margin-left:auto}.header-inner{gap:15px}.hero{height:650px}.hero h1{font-size:83px}.hero-description{max-width:360px}.hero:after{background:linear-gradient(90deg,#101611d9,#1016116b 80%)}.section{padding-block:80px}.service-grid{grid-template-columns:repeat(2,1fr);gap:40px 24px}.service-photo{height:370px}.planner-layout{grid-template-columns:1fr;gap:45px}.planner-layout>.planner-intro{max-width:620px}.planner-layout .copy{max-width:500px}.planner{max-width:100%;padding:30px}.detail-split{gap:40px}.editorial-photo>img{height:510px}.display{font-size:49px}.process-grid{gap:25px;grid-template-columns:1fr 1fr}.process-item h3{margin-top:24px}.faq-wrap{grid-template-columns:1fr;gap:40px}.faq-wrap .copy{max-width:500px}.footer-grid{grid-template-columns:1.5fr 1fr;gap:40px}.page-hero-split{gap:40px}.page-hero-image{height:350px}.content-grid{gap:20px}.content-card{padding:23px}.contact-layout{grid-template-columns:1fr;gap:45px}.contact-info{display:grid;grid-template-columns:1fr 1fr;gap:0 30px}.contact-info h2,.contact-info>p{grid-column:1/-1}.contact-detail:first-of-type{margin-top:25px}.contact-detail{margin-top:25px}.energy-layout{gap:25px}.energy-inputs,.energy-result{padding:28px}.energy-result .big-number{font-size:52px}.gallery-item img{height:320px}.trust-item{font-size:10px}.trust-item small{font-size:9px}.trust-item svg{width:24px}}
@media(max-width:600px){.wrap{width:calc(100% - 40px)}.topline .wrap{min-height:28px;font-size:8px}.topline .wrap>span{max-width:210px}.header-inner{height:76px;gap:8px}.brand img{width:64px;height:51px}.brand{gap:5px}.brand-name{font-size:15px}.brand-name small{font-size:6px;letter-spacing:.16em}.header-inner>.btn{display:none}.menu-toggle{margin-left:auto}.main-nav{top:76px;padding-inline:20px}.hero{height:650px;min-height:600px}.hero-picture img{object-position:63% center}.hero:after{background:linear-gradient(90deg,#101611c9,#10161160),linear-gradient(0deg,#101611ad,transparent 55%)}.hero-content{justify-content:flex-start;padding-top:95px;padding-bottom:90px}.hero .eyebrow{font-size:8px;letter-spacing:.17em;margin-bottom:28px}.hero h1{font-size:clamp(54px,13.5vw,78px);letter-spacing:-.065em}.hero .hero-description{max-width:300px;font-size:13px;margin-top:25px}.hero .actions{gap:12px;margin-top:28px}.btn{padding:15px 18px;font-size:11px;gap:15px}.hero .btn{padding:16px 18px;font-size:11px}.hero-bottom{bottom:25px;font-size:8px}.hero-bottom .image-note{font-size:7px;max-width:130px;text-align:right;line-height:1.7}.hero-lines{right:20px;top:auto;bottom:102px}.trust-grid{grid-template-columns:1fr 1fr;padding-block:8px}.trust-item{border-right:0;padding:19px 0;font-size:10px;gap:10px}.trust-item:nth-child(-n+2){border-bottom:1px solid #d5d7cd}.trust-item:nth-child(even){padding-left:12px}.trust-item svg{width:22px;height:22px}.trust-item small{font-size:8px}.section{padding-block:65px}.eyebrow{font-size:9px;margin-bottom:20px}.display{font-size:43px}.section-head{display:block;margin-bottom:32px}.section-head>.copy{margin-top:24px;max-width:100%;font-size:13px}.section-head>.text-link{margin-top:25px}.service-grid{gap:33px 16px}.service-photo{height:230px}.service-card h3{font-size:20px;margin-top:17px}.service-card h3 svg{width:16px}.service-card p{font-size:11px;margin-top:8px}.service-number{top:10px;left:10px;width:24px;height:24px;font-size:8px}.services-bottom{display:block;font-size:10px;margin-top:30px}.services-bottom .text-link{margin-top:20px}.planner-layout{gap:35px}.project-panel .display{font-size:43px}.project-panel .copy{font-size:13px}.planner{padding:22px}.planner-progress span{font-size:9px;gap:5px}.planner-progress b{width:19px;height:19px;font-size:8px}.planner-progress{gap:5px}.planner h3{font-size:22px}.choice{padding:14px 10px;font-size:11px;gap:10px;min-height:70px}.choice svg{width:21px}.planner-sub{font-size:10px;line-height:1.7}.planner-controls .btn{padding:12px;font-size:10px;gap:10px}.fields{gap:18px 13px}.field{font-size:10px}.field input,.field select,.field textarea{padding:12px;font-size:16px}.planner-benefits{font-size:9px;gap:15px}.detail-split{grid-template-columns:1fr;gap:40px}.editorial-photo>img{height:410px}.photo-label{left:15px;bottom:15px;padding:12px 16px;font-size:9px}.detail-list{margin-top:26px}.detail-list article{padding:20px 0}.gallery-grid{grid-template-columns:1fr;gap:35px}.gallery-item:nth-child(2){margin-top:0}.gallery-item img{height:300px}.gallery-caption{margin-top:16px}.gallery-caption h3{font-size:18px}.process-grid{gap:30px 20px;margin-top:35px}.process-item h3{font-size:19px;margin:25px 0 12px}.process-item p{font-size:11px}.faq-wrap{gap:30px}.faq-wrap .copy{font-size:13px}.faq-list summary{font-size:14px;padding-block:23px}.faq-list details p{font-size:12px}.contact-band{padding-block:50px}.contact-band .wrap{display:block}.contact-band h2{font-size:39px}.contact-band p{font-size:11px;max-width:310px}.contact-band .btn{margin-top:27px;min-width:200px}.footer{padding-top:45px;padding-bottom:85px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}.footer-brand{grid-column:1/-1}.footer-brand p{max-width:310px}.footer-grid>div:last-child{grid-column:1/-1}.footer h3{font-size:9px;margin:10px 0 20px}.footer ul{font-size:11px;gap:13px}.footer-bottom{display:block;font-size:8px;line-height:1.6;margin-top:35px}.footer-bottom div{margin-top:16px;gap:22px}.mobile-cta{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:90;background:#171b17;border-top:1px solid #ffffff30;padding:10px 15px calc(10px + env(safe-area-inset-bottom));gap:10px}.mobile-cta a{flex:1;font-size:10px;padding:12px 10px;gap:10px}.page-hero{padding:30px 0 45px}.crumbs{font-size:9px;margin-bottom:35px}.page-hero-split{grid-template-columns:1fr;gap:35px}.page-hero .display{font-size:45px}.page-hero .copy{font-size:13px}.page-hero-image{height:300px}.content-grid{grid-template-columns:1fr;gap:18px}.content-card{padding:26px}.content-card>svg{margin-bottom:22px}.content-card p{font-size:13px}.feature-row{grid-template-columns:1fr;gap:18px;padding-block:30px}.feature-row h3{font-size:25px}.feature-row p{font-size:13px}.contact-layout{gap:35px}.contact-info{display:block}.contact-info>p{font-size:13px}.contact-detail{margin-top:0;padding:22px 0}.contact-form{padding:24px}.contact-form h2{font-size:24px}.form-intro{font-size:11px}.check-field{font-size:10px}.energy-layout{grid-template-columns:1fr;gap:25px}.energy-inputs,.energy-result{padding:26px}.energy-result .big-number{font-size:65px}.energy-result{position:static}.energy-result p{font-size:12px}.prose h2{font-size:23px}.prose p,.prose li{font-size:13px}.comparison{height:330px}.comparison-label{bottom:15px;font-size:9px}.comparison-label.left{left:15px}.comparison-label.right{right:15px}.contact-form .actions .btn{width:100%}.lightbox-bar{padding:13px;font-size:10px;gap:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.js .reveal{opacity:1;transform:none}}

/* Original seven-layer window illustration, restyled for 2bfensterwerk. */
.anatomy{background:#171b18;color:#f1f2ed;overflow:clip;border-bottom:1px solid #ffffff16}
.anatomy-heading{max-width:1030px;margin-bottom:45px}
.anatomy-heading .display{font-size:clamp(40px,4.6vw,66px)}
.anatomy-heading .display em{color:#bcbfb5}
.anatomy-heading .copy{color:#aab2a2;max-width:640px;margin-top:25px;font-size:14px}
.anatomy-in{display:grid;grid-template-columns:minmax(290px,.8fr) minmax(0,1.2fr);gap:60px;align-items:start}
.layer-list{list-style:none;padding:0;margin:0 0 30px}
.layer-list li{border-top:1px solid #3a4234}
.layer-list li:last-child{border-bottom:1px solid #3a4234}
.anatomy-layer{border:0;background:transparent;color:#e0e5d8;display:grid;grid-template-columns:24px 1fr;gap:15px;padding:18px 8px 18px 0;text-align:left;width:100%;transition:background .25s,color .25s}
.anatomy-number{color:var(--bronze-light);font-size:10px;line-height:1.8;padding-top:2px}
.anatomy-layer strong{font-size:14px;font-weight:500;letter-spacing:-.015em}
.anatomy-description{display:block;color:#9ea993;font-size:11px;line-height:1.75;margin-top:8px}
.anatomy-layer:hover,.anatomy-layer:focus-visible,.anatomy-layer[aria-pressed=true]{background:#ffffff06;color:#dfc7a4}
.anatomy-layer[aria-pressed=true] .anatomy-number{color:white}
.anatomy-copy>.text-link{color:#d7be9a;font-size:11px}
.anatomy-art{min-width:0;position:sticky;top:122px;padding-top:3px}
.anatomy-art-heading{display:flex;justify-content:space-between;gap:20px;font-size:8px;text-transform:uppercase;letter-spacing:.12em;color:#adb6a2;padding-bottom:20px;border-bottom:1px solid #3a4234}
.anatomy-view-label{color:var(--bronze-light);text-align:right}
.anatomy-svg{width:100%;height:auto;display:block;overflow:visible;fill:initial;stroke:none;stroke-linecap:initial;stroke-linejoin:initial;margin:30px 0 15px}
.anatomy-art .lbl{font:400 14px Arial,Helvetica,sans-serif;letter-spacing:-.01em;fill:#dde1d5}
.anatomy-art .lbl-n{font:500 11.5px Arial,Helvetica,sans-serif;fill:var(--bronze-light)}
.anatomy-art .lead-line{stroke:#bfc5b580;stroke-width:1}
.anatomy-art .lead-dot{fill:var(--bronze-light)}
.anatomy-svg .layer{transition:transform 1.05s cubic-bezier(.16,1,.3,1),opacity .35s;transition-delay:calc(var(--i) * .07s),0s}
.anatomy.on .anatomy-svg .layer{transform:translate(var(--tx),var(--ty))}
.anatomy-svg .layer-label{opacity:0;transform:translateX(-10px);transition:opacity .5s,transform .5s}
.anatomy.on .anatomy-svg .layer-label{opacity:1;transform:none;transition-delay:calc(.75s + var(--i) * .08s)}
.anatomy.on .anatomy-svg .layer-label.dim{opacity:.2;transition-delay:0s}
.anatomy-svg .sound{opacity:0;transition:opacity .4s}
.anatomy.on .anatomy-svg .sound{opacity:1;transition-delay:.5s}
.anatomy-svg .wave{stroke:var(--bronze-light);stroke-width:2.6;stroke-linecap:round;opacity:0;transform-box:fill-box;transform-origin:78% 82%}
.anatomy.on.in-view .anatomy-svg .wave{animation:anatomyWave 2.6s cubic-bezier(.16,1,.3,1) infinite;animation-delay:calc(.6s + var(--j) * .28s)}
@keyframes anatomyWave{0%{opacity:0;transform:scale(.72)}22%{opacity:.9}70%{opacity:.15;transform:scale(1.12)}100%{opacity:0;transform:scale(1.18)}}
.anatomy-svg .layer.mute{opacity:.18}
.anatomy-controls{display:flex;flex-wrap:wrap;align-items:center;gap:18px;padding-top:22px;border-top:1px solid #3a4234}
.anatomy-controls .btn{font-size:10px;padding:13px 18px;min-width:190px}
.anatomy-controls>span{font-size:9px;line-height:1.7;color:#a8b29d}
.anatomy-note{font-size:10px;line-height:1.9;color:#8f9b83;margin-top:22px;max-width:560px}
@media(max-width:1100px){.anatomy-in{gap:30px;grid-template-columns:minmax(270px,.9fr) minmax(0,1.1fr)}}
@media(max-width:760px){.anatomy-in{grid-template-columns:1fr;gap:35px}.anatomy-art{order:-1;position:static}.anatomy-heading{margin-bottom:35px}.anatomy-heading .display{font-size:clamp(36px,7vw,48px)}.anatomy-heading .copy{font-size:13px}.anatomy-svg{max-width:560px;margin:10px auto}.anatomy-svg .layer-label{display:none}.anatomy-art-heading{font-size:7px;gap:10px}.anatomy-controls{padding-top:18px}.anatomy-controls .btn{font-size:10px;min-width:180px}.anatomy-note{font-size:9px}.anatomy-layer{padding-block:17px}.anatomy-layer strong{font-size:14px}.anatomy-description{font-size:11px}.anatomy-copy .text-link{font-size:11px}}
@media(prefers-reduced-motion:reduce){.anatomy-svg .layer,.anatomy-svg .layer-label,.anatomy-svg .layer-wrap{transition:none!important}.anatomy-svg .wave{animation:none!important;opacity:.6}}