:root{--blau:#2C3E50;--blau2:#34495E;--orange:#F0A020;--link:#277DB6;--grau:#F4F5F7;--text:#1f2a35;--muted:#5b6774;--max:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:#fff;line-height:1.6;font-size:17px}
img{max-width:100%;height:auto;display:block}
a{color:var(--link)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}

/* Kopfzeile */
header.top{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid #e6e8eb}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:84px;gap:16px;position:relative}
header.top .logo img{height:64px;width:auto}
nav{display:flex;align-items:center}
nav a{color:var(--blau);text-decoration:none;font-weight:600;margin-left:20px;font-size:15px;white-space:nowrap}
nav a:hover{color:var(--orange)}
nav a.tel{color:var(--blau);font-weight:700}
nav a.cta{background:var(--orange);color:#1b1b1b;padding:8px 14px;border-radius:6px}
.burger{display:none;width:46px;height:42px;border:1px solid #dfe3e8;border-radius:6px;background:#fff;cursor:pointer;padding:10px 11px;flex-direction:column;justify-content:space-between}
.burger span{display:block;height:3px;background:var(--blau);border-radius:2px}
@media(max-width:1040px){nav a.tel{display:none}}
@media(max-width:900px){
 header.top .wrap{height:76px}header.top .logo img{height:56px}
 .burger{display:flex}
 nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:8px 20px 18px;border-bottom:1px solid #e6e8eb;box-shadow:0 12px 24px rgba(0,0,0,.08)}
 nav.open{display:flex}
 nav a{margin:0;padding:13px 2px;border-bottom:1px solid #eef0f2;font-size:17px}
 nav a.tel{display:block}
 nav a.cta{margin-top:12px;text-align:center;border:0;padding:12px}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:6px;font-weight:700;text-decoration:none;font-size:16px}
.btn-o{background:var(--orange);color:#1b1b1b}.btn-o:hover{filter:brightness(.95)}
.btn-w{background:#fff;color:var(--blau);border:2px solid #fff}
.btn-l{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.7)}

/* Startbereich */
.hero{display:grid;grid-template-columns:1.1fr 1fr;min-height:560px;background:var(--blau);color:#fff}
.hero .txt{padding:56px 48px 56px max(20px,calc((100vw - var(--max))/2 + 20px));display:flex;flex-direction:column;justify-content:center}
.hero .bar{width:64px;height:5px;background:var(--orange);margin-bottom:20px}
.badges{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0 0 20px;padding:0}
.badges li{font-size:13.5px;font-weight:700;color:#fff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:5px 12px}
.hero .pre{font-size:15px;font-weight:700;letter-spacing:.04em;color:var(--orange);margin:0 0 10px;text-transform:uppercase}
.hero h1{font-size:clamp(30px,3.9vw,46px);line-height:1.12;margin:0 0 18px}
.hero p{font-size:19px;margin:0 0 28px;color:#dfe6ee;max-width:540px}
.hero .img{background:url(img/f1_rohbau_huerth.jpg) center 35%/cover}
@media(max-width:860px){.hero .img{background-image:url(img/f1_rohbau_huerth-800.jpg)}}
.hero .acts{display:flex;gap:12px;flex-wrap:wrap}
@media(max-width:860px){.hero{grid-template-columns:1fr}.hero .img{min-height:240px;order:-1}.hero .txt{padding:36px 20px 40px}.hero p{font-size:17.5px}}

/* Abschnitte */
section{padding:72px 0}
section.alt{background:var(--grau)}
@media(max-width:600px){section{padding:52px 0}}
.kicker{color:var(--orange);font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:13px;margin:0 0 8px}
h2{font-size:clamp(26px,3vw,36px);line-height:1.2;margin:0 0 20px;color:var(--blau)}
h3{color:var(--blau);margin:0 0 8px;font-size:20px}
.lead{max-width:780px}
.two{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
@media(max-width:860px){.two{grid-template-columns:1fr}}
.checks{list-style:none;padding:0;margin:18px 0 0}.checks li{padding-left:28px;position:relative;margin:6px 0;font-weight:600}
.checks li:before{content:"";position:absolute;left:0;top:7px;width:14px;height:14px;background:var(--orange);border-radius:3px}
.photo{border-radius:8px;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.12)}
.photo img{aspect-ratio:4/3;object-fit:cover;width:100%}

/* Karten */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.cards{grid-template-columns:1fr 1fr}}@media(max-width:600px){.cards{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid #e6e8eb;border-radius:8px;padding:22px}
.card h3{font-size:18px}.card p{margin:0;color:var(--muted);font-size:15.5px}
.opts{margin-top:24px}
.opt{border-top:4px solid var(--orange);position:relative}
.opt .num{display:inline-flex;width:32px;height:32px;border-radius:50%;background:var(--blau);color:#fff;font-weight:800;align-items:center;justify-content:center;margin-bottom:12px}
.note2{margin:22px 0 0;max-width:780px;background:#fff;border-left:4px solid var(--blau);border-radius:4px;padding:14px 18px}

/* Über uns */
.profile{margin:20px 0 6px;background:var(--grau);border-left:4px solid var(--orange);border-radius:6px;padding:16px 20px}
.profile b{display:block;font-size:19px;color:var(--blau)}
.profile span{display:block;color:var(--orange);font-weight:700;font-size:14px;margin:2px 0 6px}
.profile p{margin:0;color:var(--muted);font-size:15.5px}

/* Zahlen */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:1000px){.stats{grid-template-columns:1fr 1fr}}@media(max-width:560px){.stats{grid-template-columns:1fr}}
.stat{background:#fff;border-radius:8px;padding:26px;border-top:4px solid var(--orange)}
.stat b{display:block;font-size:30px;color:var(--blau);line-height:1.1;margin-bottom:6px}
.stat span{color:var(--muted)}
.phases{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}
@media(max-width:760px){.phases{grid-template-columns:1fr}}
.phase{background:#fff;border-radius:8px;padding:28px;border-left:4px solid var(--blau)}
.phase .y{color:var(--orange);font-weight:800;font-size:14px;letter-spacing:.05em}

/* Galerie */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media(max-width:900px){.gallery{grid-template-columns:repeat(3,1fr)}}@media(max-width:600px){.gallery{grid-template-columns:repeat(2,1fr)}}
.gallery figure{margin:0;position:relative;border-radius:6px;overflow:hidden;background:#ddd}
.gallery a{display:block;cursor:zoom-in}
.gallery img{aspect-ratio:1/1;object-fit:cover;width:100%;transition:transform .3s}
.gallery a:hover img{transform:scale(1.04)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:22px 10px 8px;font-size:13px;font-weight:600;color:#fff;background:linear-gradient(transparent,rgba(0,0,0,.7));pointer-events:none}
.featured{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.featured.three{grid-template-columns:repeat(3,1fr)}
.featured.gallery img{aspect-ratio:4/3}
@media(max-width:860px){.featured.three{grid-template-columns:1fr 1fr}}@media(max-width:600px){.featured,.featured.three{grid-template-columns:1fr}}

/* Großansicht */
.lb{position:fixed;inset:0;z-index:50;background:rgba(15,20,26,.92);display:flex;align-items:center;justify-content:center;padding:20px}
.lb[hidden]{display:none}
.lb figure{margin:0;max-width:min(1100px,100%);text-align:center}
.lb img{max-height:82vh;width:auto;margin:0 auto;border-radius:4px}
.lb figcaption{color:#dfe6ee;margin-top:10px;font-weight:600}
.lb button{position:absolute;background:rgba(255,255,255,.12);color:#fff;border:0;border-radius:50%;width:48px;height:48px;font-size:30px;line-height:1;cursor:pointer}
.lb button:hover{background:rgba(255,255,255,.25)}
.lb-x{top:16px;right:16px}.lb-p{left:12px;top:50%;transform:translateY(-50%)}.lb-n{right:12px;top:50%;transform:translateY(-50%)}

/* Einsatzgebiet, Kontakt, Fuß */
.region{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 0;padding:0;list-style:none}
.region li{background:#fff;border:1px solid #dfe3e8;border-radius:999px;padding:6px 14px;font-weight:600;color:var(--blau);font-size:15px}
.contact{background:var(--blau);color:#fff}
.contact h2{color:#fff}.contact p{color:#dfe6ee;max-width:680px}
.contact .acts{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}
.contact small{display:block;margin-top:18px;color:#b9c6d3}
footer{background:#1e2a36;color:#b9c6d3;padding:28px 0;font-size:14px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer a{color:#fff;text-decoration:none;margin-left:16px}
.legal{padding:56px 0}.legal h1{color:var(--blau);font-size:32px;margin:0 0 24px}.legal h2{font-size:21px;margin:28px 0 8px}
.legal p{max-width:760px}
.note{background:#fff6e0;border-left:4px solid var(--orange);padding:14px 18px;border-radius:4px;max-width:760px}

/* Gewerkekette */
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:22px}
.flow span{background:var(--blau);color:#fff;font-weight:700;padding:10px 16px;border-radius:6px;font-size:15px}
.flow i{width:22px;height:3px;background:var(--orange);display:inline-block}
@media(max-width:600px){.flow i{width:12px}.flow span{font-size:14px;padding:8px 12px}}

nav.simple{display:flex!important;position:static;flex-direction:row;padding:0;border:0;box-shadow:none;background:none}
nav.simple a{border:0;padding:8px 14px;margin-left:12px;font-size:15px}

/* V17 */
.photo.small{max-width:380px;justify-self:center}
.photo.small img{aspect-ratio:4/5}
.btn-big{font-size:17px;padding:14px 24px}
.contact .alt-contact{margin-top:20px;font-size:15.5px}
.contact .alt-contact a{color:#fff;font-weight:700}

/* V18 */
.umfang{background:linear-gradient(180deg,var(--grau),#fff);border-top:5px solid var(--orange)}
.umfang h2{font-size:clamp(28px,3.4vw,40px)}
.opt{box-shadow:0 10px 26px rgba(44,62,80,.10);border:0;border-top:5px solid var(--orange);padding:26px}
.opt .num{width:40px;height:40px;font-size:18px;background:var(--orange);color:#1b1b1b}
.opt h3{font-size:20px}
.umfang .note2{border-left:5px solid var(--orange);background:#fff8ea;font-size:16.5px;max-width:none}

.portrait{margin:0;justify-self:center;width:100%;max-width:360px}
.portrait .ph{aspect-ratio:4/5;border-radius:8px;background:repeating-linear-gradient(135deg,#eef1f4 0 14px,#e6eaee 14px 28px);border:2px dashed #c6ced6;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#9aa6b2;gap:10px}
.portrait .ph span{font-weight:700;font-size:15px}
.portrait img{aspect-ratio:4/5;object-fit:cover;width:100%;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.12)}
.portrait figcaption{text-align:center;color:var(--muted);font-size:14px;margin-top:8px}
@media(max-width:860px){.portrait{max-width:260px}}

.mosaic{grid-auto-rows:190px;grid-auto-flow:dense}
.mosaic figure{height:100%}
.mosaic img{aspect-ratio:auto;height:100%}
.mosaic .w{grid-column:span 2}.mosaic .t{grid-row:span 2}
@media(max-width:900px){.mosaic{grid-auto-rows:170px}}
@media(max-width:600px){.mosaic{grid-auto-rows:150px}.mosaic .w{grid-column:span 2}}

.steps{list-style:none;margin:8px 0 34px;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:st}
.steps li{counter-increment:st;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:8px;padding:16px 16px 16px 58px;position:relative}
.steps li:before{content:counter(st);position:absolute;left:16px;top:16px;width:30px;height:30px;border-radius:50%;background:var(--orange);color:#1b1b1b;font-weight:800;display:flex;align-items:center;justify-content:center}
.steps b{display:block;color:#fff;font-size:17px}.steps span{display:block;color:#c9d4df;font-size:14.5px;line-height:1.45;margin-top:2px}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr}}@media(max-width:520px){.steps{grid-template-columns:1fr}}
.ask{display:grid;grid-template-columns:1.3fr 1fr;gap:36px;align-items:center;background:rgba(0,0,0,.14);border-radius:10px;padding:28px}
.ask h3{color:#fff;font-size:22px}.ask p{margin:0}
.checks.light li{color:#fff;font-weight:600;font-size:15.5px}
.ask-cta{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.mailaddr{color:#dfe6ee;font-weight:600}
.contact .ask .alt-contact{margin-top:10px;font-size:14.5px;color:#c9d4df}
@media(max-width:860px){.ask{grid-template-columns:1fr;padding:22px;gap:22px}.ask-cta .btn{width:100%;justify-content:center}}
.portrait-photo{max-width:380px;justify-self:center;width:100%}
.portrait-photo img{aspect-ratio:4/5}
@media(max-width:860px){.portrait-photo{max-width:none}.portrait-photo img{aspect-ratio:4/3}}
@media(max-width:560px){.stats{grid-template-columns:1fr 1fr;gap:12px}.stat{padding:16px}.stat b{font-size:22px}.stat span{font-size:14px}}