/* Sandstein Concept – gemeinsames Design (alle Seiten) */
:root{
  --bg:#2b2d2e; --bg2:#242627; --panel:#323536;
  --text:#ecebe7; --muted:#a9aaa6; --line:rgba(255,255,255,.14);
  --sand:#c48a55; --beton:#9aa6a3; --rost:#d0643f; --marmor:#c9ccd0;
  --accent:var(--sand);
  --head:'Arial Black','Archivo',Arial,sans-serif;
  --body:'Segoe UI','Source Sans 3',Arial,sans-serif;
  --mono:Consolas,'IBM Plex Mono',monospace;
  --hh:64px;
}
[data-line=sandstein]{--accent:var(--sand)}
[data-line=beton]{--accent:var(--beton)}
[data-line=rost]{--accent:var(--rost)}
[data-line=marmor]{--accent:var(--marmor)}

*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--bg)}
body{background:var(--bg);color:var(--text);font-family:var(--body);font-size:18px;line-height:1.6;overflow-x:hidden}
a{color:inherit}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,p,li,address{overflow-wrap:break-word;hyphens:auto}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.skip-link{position:absolute;left:-999px;top:8px;background:var(--accent);color:#1d1e1f;padding:10px 14px;z-index:99}
.skip-link:focus{left:8px}
.container{max-width:1100px;margin:0 auto;padding:0 24px}

/* Kopfzeile */
.site-header{position:sticky;top:0;height:var(--hh);z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:0 32px;background:#2b2d2ef2;backdrop-filter:blur(6px)}
.brand{font-family:var(--head);font-weight:900;letter-spacing:.14em;text-transform:uppercase;font-size:15px;text-decoration:none;white-space:nowrap}
.brand{display:flex;align-items:center}
.brand img{height:30px;width:auto}
.main-nav{display:flex;gap:26px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase}
.main-nav a{text-decoration:none;color:var(--muted);padding:6px 0;border-bottom:2px solid transparent;transition:.2s}
.main-nav a:hover,.main-nav a[aria-current=page],.main-nav a.on{color:var(--text);border-color:var(--accent)}
.lang{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.08em}
.lang b{color:var(--text)}
.menu-toggle{display:none;position:relative;font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase}
.menu-toggle summary{cursor:pointer;padding:8px 12px;border:1px solid var(--line);list-style:none}
.menu-toggle[open] a{display:block;padding:12px 16px;text-decoration:none;background:var(--panel);border:1px solid var(--line);border-top:0}
.menu-toggle[open]{position:absolute;top:15px;right:18px;min-width:200px;max-height:calc(100vh - 30px);overflow-y:auto}
.menu-toggle[open] summary{background:var(--panel);text-align:right}
.menu-toggle[open] a:first-of-type{margin-top:4px}

/* Typografie */
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);color:color-mix(in srgb,var(--k,var(--accent)) 55%,#fff);margin-bottom:18px;display:flex;align-items:center;gap:12px}
.kicker::before{content:"";width:36px;height:2px;background:var(--k,var(--accent))}
h1,h2{font-family:var(--head);font-weight:900;line-height:1.05;letter-spacing:-.01em}
h1{font-size:clamp(30px,6vw,88px)}
h2{font-size:clamp(28px,3.4vw,50px);margin-bottom:22px}
h1 em,h2 em{font-style:normal;color:var(--accent)}
.lead{max-width:38ch;color:#d6d5d0;font-size:clamp(17px,1.4vw,21px)}
.btn{display:inline-block;margin-top:30px;padding:13px 26px;border:1.5px solid var(--accent);color:var(--text);background:none;text-decoration:none;cursor:pointer;
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;transition:.2s}
.btn:hover{background:var(--accent);color:#1d1e1f}

/* Normalseiten */
.page-hero{position:relative;min-height:56vh;display:flex;align-items:flex-end;padding:80px 0 56px;overflow:hidden;margin-top:calc(var(--hh) * -1);padding-top:calc(var(--hh) + 80px)}
.page-hero--plain{min-height:0;padding-bottom:24px}
.page-hero__bg{position:absolute;inset:0}
.page-hero__bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.5)}
.page-hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#2b2d2e 0%,#2b2d2e00 70%)}
.page-hero .container{position:relative;width:100%}
.page-hero h1{margin-bottom:22px}
.facts{display:flex;flex-wrap:wrap;gap:16px 44px;margin:40px 0;font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.facts b{display:block;font-family:var(--head);font-size:clamp(26px,3vw,36px);color:var(--text);letter-spacing:0}
.prose p{max-width:62ch;margin-bottom:16px;color:#d6d5d0}
.prose h2{margin:48px 0 16px}
.prose ul{max-width:62ch;margin:0 0 16px 22px;color:#d6d5d0}
.section{margin-top:56px}
.grid-swatches{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:18px}
.swatch{margin:0}
.swatch img{width:100%;aspect-ratio:1/1.6;object-fit:cover;border:1px solid var(--line);background:var(--panel)}
.grid-swatches--square .swatch img{aspect-ratio:1/1}
.swatch figcaption{margin-top:10px;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.detail-img{max-width:min(440px,100%);height:auto;border:1px solid var(--line)}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:36px 0}
.kpi{border:1px solid var(--line);padding:26px 24px;background:var(--panel)}
.kpi b{display:block;font-family:var(--head);font-weight:900;font-size:clamp(36px,4vw,56px);line-height:1;color:var(--sand)}
.kpi span{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.notice{border:1px dashed var(--rost);background:#d0643f14;padding:14px 18px;margin:0 0 28px;font-family:var(--mono);font-size:13px;color:#e9b7a4}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
address{font-style:normal;font-size:19px;line-height:1.8}
address a{color:var(--sand)}
.form-box{border:1px solid var(--line);background:var(--panel);padding:30px}
.form-box label{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:14px 0 6px}
.form-box input,.form-box textarea{width:100%;background:#1f2122;border:1px solid var(--line);color:var(--text);padding:11px 12px;font:inherit;font-size:16px}
.form-box textarea{height:130px;resize:vertical}
.site-footer{border-top:1px solid var(--line);padding:40px 0;margin-top:80px;color:var(--muted);font-size:15px}
.site-footer .container{display:flex;flex-wrap:wrap;gap:24px 48px;justify-content:space-between}
.site-footer a{text-decoration:none;border-bottom:1px solid var(--line)}
.site-footer a:hover{color:var(--text)}

@media (max-width:1000px){
  .main-nav,.lang{display:none}
  .menu-toggle{display:block}
}
@media (max-width:760px){
  .site-header{padding:0 18px}
  .contact-grid{grid-template-columns:1fr}
  body{font-size:17px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* === Startseite quer === */
body.home{overflow:hidden;height:100vh}
.home .site-header{position:fixed;inset:0 0 auto 0;width:100%;background:linear-gradient(#2b2d2eee,#2b2d2e00);backdrop-filter:none}
#scroller{position:fixed;inset:0;display:flex;overflow-x:auto;overflow-y:hidden;scrollbar-width:none}
#scroller::-webkit-scrollbar{display:none}
.panel{position:relative;flex:0 0 auto;height:100%;display:flex;align-items:center;padding:calc(var(--hh) + 20px) 64px 56px}
.panel.full{width:100vw}
.panel .bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.panel .bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.55) contrast(1.05)}
.panel .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#2b2d2e 0%,#2b2d2ecc 28%,#2b2d2e33 70%,#2b2d2e 100%)}
.panel>*:not(.bg){position:relative;z-index:1}
.panel h1{font-size:clamp(48px,7vw,116px);max-width:12ch;hyphens:none;overflow-wrap:normal}
.panel h2{font-size:clamp(40px,4.6vw,76px)}
.panel h2 a{text-decoration:none}
.panel .lead{margin-top:0}
.hint{margin-top:44px;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);display:flex;gap:14px;align-items:center}
.hint i{display:inline-block;width:64px;height:2px;background:var(--accent);position:relative;animation:nudge 1.8s ease-in-out infinite}
.hint i::after{content:"";position:absolute;right:0;top:-4px;width:9px;height:9px;border:solid var(--accent);border-width:2px 2px 0 0;transform:rotate(45deg)}
@keyframes nudge{50%{transform:translateX(12px)}}
.product{gap:56px}
.product .txt{flex:0 0 min(470px,40vw)}
.product .facts{margin:30px 0 0}
.swatches{display:flex;gap:18px;align-items:flex-end}
.sw{flex:0 0 auto;width:clamp(120px,11vw,170px);text-decoration:none}
.sw .img{aspect-ratio:1/2;overflow:hidden;background:var(--panel);border:1px solid var(--line);transition:transform .35s}
.sw:nth-child(even) .img{aspect-ratio:1/1.8}
.swatches--grid{display:grid;grid-template-columns:repeat(6,auto);gap:18px 14px;align-items:start}
.swatches--grid4{grid-template-columns:repeat(4,auto)}
.swatches--grid .sw{width:160px}
.swatches--grid .sw .img,.swatches--grid .sw:nth-child(even) .img{aspect-ratio:1/1}
.swatches--grid .sw span{font-size:11px}
.swatches--rost{grid-template-columns:repeat(5,auto)}
.swatches--marmor{grid-template-columns:repeat(5,auto)}
.swatches--rost .sw--big{grid-column:1/3;grid-row:1/3;width:334px;align-self:stretch;display:flex;flex-direction:column}
.swatches--rost .sw--big .img,.swatches--rost .sw--big:nth-child(even) .img{flex:1;aspect-ratio:auto}
.swatches--square .sw{width:clamp(170px,16vw,250px)}
.swatches--square .sw .img,.swatches--square .sw:nth-child(even) .img{aspect-ratio:1/1}
.sw img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.sw:hover .img{transform:translateY(-8px)}
.sw:hover img{transform:scale(1.06)}
.sw span{display:block;margin-top:10px;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.detail{flex:0 0 auto;width:clamp(260px,26vw,420px);aspect-ratio:1/1;border:1px solid var(--line);overflow:hidden}
.detail img{width:100%;height:100%;object-fit:cover}
.end-gap{flex:0 0 40px}
.panel+.panel::before{content:"";position:absolute;left:0;top:calc(var(--hh) + 10px);bottom:40px;width:1px;background:var(--line);z-index:2}
.about{gap:72px;background:var(--bg2)}
.about .txt{flex:0 0 min(560px,42vw)}
.about p{color:#d6d5d0;margin-bottom:16px;max-width:46ch}
.about .kpis{grid-template-columns:repeat(2,minmax(150px,220px));margin:0}
.contact-panel{gap:80px}
.contact-panel address{font-size:20px}
.legal{margin-top:40px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--muted);display:flex;gap:22px;flex-wrap:wrap}
.legal a{text-decoration:none;border-bottom:1px solid var(--line)}
.legal a:hover{color:var(--text)}
#bar{position:fixed;left:0;bottom:0;height:4px;width:0;background:var(--accent);z-index:30;transition:background .4s}
.arrows{position:fixed;right:28px;bottom:26px;z-index:25;display:flex;gap:8px}
.arrows button{width:46px;height:46px;background:#1f2122cc;border:1px solid var(--line);color:var(--text);font-size:20px;cursor:pointer;transition:.2s}
.arrows button:hover{background:var(--accent);color:#1d1e1f}
.counter{position:fixed;left:32px;bottom:22px;z-index:25;font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--muted)}
.counter b{color:var(--text)}

/* Handy: vertikaler Rückfall der Startseite */
@media (max-width:760px){
  body.home{overflow:auto;height:auto}
  .home .site-header{background:#2b2d2ef2}
  .arrows,.counter,#bar{display:none}
  .panel .bg{width:auto!important;right:0!important}
  #scroller{position:static;display:block;overflow:visible}
  .panel{display:block;height:auto;min-height:88vh;padding:calc(var(--hh) + 24px) 20px 48px}
  .panel+.panel::before{left:20px;right:20px;top:0;bottom:auto;width:auto;height:1px}
  .product .txt,.about .txt{margin-bottom:28px}
  .swatches{overflow-x:auto;padding-bottom:14px;margin:0 -20px;padding-left:20px}
  .detail{width:70%;margin-top:22px}
  .about .kpis{grid-template-columns:1fr 1fr}
  .panel h1{font-size:clamp(32px,10vw,64px)}
}

/* Karten (Steinpaneele: Kollektionen und Paneele) */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:24px}
.card{display:block;color:inherit;text-decoration:none;border:1px solid var(--line);background:var(--panel)}
a.card:hover{border-color:var(--accent)}
.card img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}
.cards--panel .card img{aspect-ratio:1/1}
.card .meta{padding:16px 18px 18px}
.card h3{margin:0 0 6px;font-size:20px}
.card .sub{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.card--soon{opacity:.55}
.swatches--drei{grid-template-columns:repeat(3,auto)}
.swatches--drei .sw{width:240px}
.swatches--drei .sw .img,.swatches--drei .sw:nth-child(even) .img{aspect-ratio:4/3}
.ref-title{margin:36px 0 14px;font-size:20px}
.refs .ref-title:first-child{margin-top:0}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.ref{margin:0}
.ref img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line);background:var(--panel)}
.prose + .refs{margin-top:20px}

.nosale{color:var(--rost);font-weight:600}