/* Beispiel-Entwurf Dachdecker: Schiefergrau mit Ziegelrot */
:root{--slate:#1d2327;--slate-2:#252d32;--slate-3:#2f383e;--ink:#f1efeb;--muted:#b4bcc0;--brick:#b5412c;--brick-d:#97331f;--brick-l:#ec806a;--paper:#ece7df;--paper-ink:#1d2327;--line:#ffffff1c}
body{background:var(--slate);color:var(--ink);font:400 18px/1.65 Atkinson,system-ui,sans-serif}
h1,h2,h3,.logo{font-family:Bricolage,Georgia,serif;font-weight:700;letter-spacing:-.015em;line-height:1.1;margin:0}
.wrap{width:min(1180px,100% - 40px);margin-inline:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding:0 26px;border-radius:6px;font-weight:700;text-decoration:none;border:2px solid transparent;transition:background-color .2s,border-color .2s,color .2s}
.btn-brick{background:var(--brick);color:#fff}
.btn-brick:hover{background:var(--brick-d)}
.btn-line{border-color:#ffffff59;color:var(--ink)}
.btn-line:hover{border-color:var(--brick-l);color:var(--brick-l)}
svg.i{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* Sturm-Leiste */
.storm{background:#a3311d;color:#fff;font-weight:700}
.storm .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 16px;min-height:52px;padding-block:8px}
.storm a{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 16px;border-radius:6px;background:#fff;color:#8e2a18;text-decoration:none;transition:background-color .2s}
.storm a:hover{background:var(--paper)}
.storm .i{width:20px;height:20px}

/* Kopf */
.top{position:sticky;top:0;z-index:50;background:#1d2327f2;backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:28px;height:76px}
.logo{display:flex;align-items:center;gap:12px;font-size:1.45rem;text-decoration:none;line-height:1.15}
.logo b{display:grid;place-items:center;width:40px;height:40px;border-radius:4px;background:var(--brick);color:#fff}
.logo b .i{width:22px;height:22px;stroke-width:2.2}
.logo small{display:block;font:700 .72rem/1.3 Atkinson,system-ui,sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.nav{display:flex;gap:28px;margin-left:auto}
.nav a{text-decoration:none;font-weight:700;color:var(--muted);padding-block:10px}
.nav a:hover{color:var(--ink)}
.top .tel{display:inline-flex;align-items:center;gap:8px;font-weight:700;text-decoration:none;color:var(--ink);padding:10px 0 10px 24px;border-left:1px solid var(--line)}
.top .tel .i{color:var(--brick-l);width:20px;height:20px}
.menu{display:none;margin-left:auto;width:46px;height:46px;border-radius:6px;border:1px solid var(--line);background:var(--slate-2);color:var(--ink);font-size:22px}

/* Start */
.hero{padding:0}
.hero .wrap{display:grid;grid-template-columns:1.3fr .7fr;gap:64px;align-items:center;padding:64px 0 84px}
.hero h1{font-size:clamp(2.5rem,5.2vw,4.25rem)}
.hero h1 span{display:block;color:var(--brick-l)}
.hero p{color:var(--muted);font-size:1.2rem;max-width:36ch;margin:24px 0 0}
.hero .acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-media{position:relative;padding:0 18px 18px 0}
.hero-media:before{content:"";position:absolute;right:0;bottom:0;width:62%;height:58%;background:var(--brick);border-radius:4px}
.hero .ph{aspect-ratio:4/5;max-height:540px;width:100%;border-radius:4px;--ph-a:#2f383e;--ph-b:#252d32}

/* Abschnitte */
section{padding:88px 0}
.sec-h{font-size:clamp(2rem,4vw,3rem);max-width:22ch}
.sec-h:before{content:"";display:block;width:48px;height:4px;margin-bottom:20px;background:var(--brick)}
.sec-p{color:var(--muted);max-width:52ch;margin:16px 0 0}

/* Leistungen */
#leistungen{border-top:1px solid var(--line)}
.svc{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.svc article{display:flex;flex-direction:column;background:var(--slate-2);border:1px solid var(--line);border-radius:4px;overflow:hidden}
.svc .ph{aspect-ratio:4/3;--ph-a:#2f383e;--ph-b:#252d32}
.svc .ph .ph-label{font-size:12px;left:10px;bottom:10px}
.svc .txt{padding:22px 22px 26px;border-top:4px solid var(--brick)}
.svc h3{font-size:1.3rem}
.svc p{color:var(--muted);font-size:1rem;margin:10px 0 0}

/* Vorteile */
.perks{background:var(--paper);color:var(--paper-ink);padding:34px 0}
.perks ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr)}
.perks li{display:flex;align-items:center;gap:14px;padding:10px 24px;border-left:1px solid #1d232726}
.perks li:first-child{border-left:0;padding-left:0}
.perks .i{width:30px;height:30px;color:#a3311d}
.perks b{font-size:1.05rem;line-height:1.35}

/* Vorher/Nachher */
.ba{background:var(--slate-2)}
.ba-head{display:grid;grid-template-columns:1fr 1fr;gap:24px 56px;align-items:end}
.ba-head .sec-p{margin:0}
.ba-box{--pos:50%;position:relative;margin-top:40px;aspect-ratio:3/2;max-height:720px;width:100%;overflow:hidden;border-radius:4px;background:var(--slate-3);user-select:none}
.ba-box img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba-before{position:absolute;inset:0;clip-path:inset(0 calc(100% - var(--pos)) 0 0)}
.ba-tag{position:absolute;top:16px;padding:6px 12px;border-radius:4px;background:#1d2327d9;color:#fff;font-weight:700;font-size:.85rem;line-height:1.3;letter-spacing:.1em;text-transform:uppercase;pointer-events:none}
.ba-tag-l{left:16px}
.ba-tag-r{right:16px}
.ba-line{position:absolute;top:0;bottom:0;left:var(--pos);width:3px;margin-left:-1.5px;background:#fff;pointer-events:none}
.ba-line i{position:absolute;top:50%;left:50%;width:52px;height:52px;margin:-26px 0 0 -26px;border-radius:50%;background:var(--brick);border:3px solid #fff;box-shadow:0 6px 18px #0006}
.ba-line i:before,.ba-line i:after{content:"";position:absolute;top:50%;width:0;height:0;margin-top:-7px;border:7px solid transparent}
.ba-line i:before{left:6px;border-right-color:#fff}
.ba-line i:after{right:6px;border-left-color:#fff}
.ba-range{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;touch-action:pan-y;-webkit-appearance:none;appearance:none;background:none}
.ba-range::-webkit-slider-thumb{-webkit-appearance:none;width:56px;height:600px}
.ba-range::-moz-range-thumb{width:56px;height:600px;border:0}
.ba-box:focus-within .ba-line i{outline:3px solid #fff;outline-offset:4px}

/* Ablauf */
.steps .wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.steps .ph{aspect-ratio:4/3;border-radius:4px;--ph-a:#2f383e;--ph-b:#252d32}
.tl{list-style:none;margin:30px 0 34px;padding:0;position:relative}
.tl:before{content:"";position:absolute;left:21px;top:12px;bottom:24px;width:2px;background:#ec806a4d}
.tl li{position:relative;padding:0 0 24px 66px}
.tl li span{position:absolute;left:0;top:0;width:44px;height:44px;border-radius:4px;background:var(--brick);color:#fff;display:grid;place-items:center;font:700 1.2rem Bricolage,Georgia,serif}
.tl b{display:block;font-size:1.15rem;padding-top:8px}
.tl p{margin:4px 0 0;color:var(--muted);font-size:1rem}

/* Fragen */
.faq-sec{border-top:1px solid var(--line)}
.faq-sec .wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.faq{border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line)}
summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 0;font-weight:700;font-size:1.1rem}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";flex:none;color:var(--brick-l);font:700 1.6rem/1 Bricolage,Georgia,serif}
details[open] summary:after{content:"–"}
details p{margin:0 0 22px;color:var(--muted);max-width:60ch}

/* Kontakt */
.contact{background:var(--slate-2)}
.contact .wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:56px}
.card{background:var(--slate-3);border-radius:4px;padding:30px;border:1px solid var(--line)}
.call{display:flex;align-items:center;gap:14px;margin-top:30px;text-decoration:none}
.call b{display:block;font-family:Bricolage,Georgia,serif;font-size:1.7rem;color:var(--ink)}
.call span{color:var(--muted);font-size:.95rem}
.call .i{width:54px;height:54px;padding:13px;border-radius:4px;background:var(--brick);color:#fff}
form{display:grid;gap:14px}
label{font-weight:700;font-size:.95rem}
input,select,textarea{width:100%;margin-top:6px;padding:14px 16px;border-radius:4px;border:1.5px solid #ffffff33;background:var(--slate);color:var(--ink);font:inherit;font-size:1rem}
textarea{min-height:120px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brick-l);box-shadow:0 0 0 3px #ec806a40}
.demo-sent{background:#b5412c40;color:var(--ink)}
footer{padding:28px 0;color:var(--muted);font-size:.95rem;border-top:1px solid var(--line)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}

@media (max-width:1080px){.svc{grid-template-columns:1fr 1fr}.perks ul{grid-template-columns:1fr 1fr;gap:8px 0}.perks li:nth-child(3){border-left:0;padding-left:0}}
@media (max-width:860px){
  .nav{display:none;position:absolute;top:76px;left:0;right:0;flex-direction:column;gap:0;background:var(--slate);border-bottom:1px solid var(--line);padding:8px 20px 16px}
  .nav.open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line);font-size:1.1rem;color:var(--ink)}
  .menu{display:block}
  .top .tel{display:none}
  .hero .wrap,.steps .wrap,.contact .wrap,.faq-sec .wrap,.ba-head{grid-template-columns:1fr}
  .hero .wrap{padding:36px 0 56px;gap:36px}
  .hero .ph{aspect-ratio:4/3;max-height:none}
  .steps .wrap,.faq-sec .wrap{gap:36px}
  section{padding:64px 0}
  .ba-box{aspect-ratio:4/3}
}
@media (max-width:560px){
  .svc{grid-template-columns:1fr}
  .perks ul{grid-template-columns:1fr}
  .perks li,.perks li:nth-child(3){border-left:0;padding:10px 0}
  .storm .wrap{justify-content:flex-start}
  .logo{font-size:1.3rem}
  .ba-tag{top:10px;font-size:.75rem}
  .ba-tag-l{left:10px}
  .ba-tag-r{right:10px}
}
@media (prefers-reduced-motion:reduce){.btn,.storm a{transition:none}}