/* B2B Solar – Layout nach CI: weisser Kopf mit Farblogo, Tech-Grid-Hero (CI-Cover), CI-Blau #11638A für ruhige Flächen, Sonnengelb nur für Aktionen */
:root{
  --navy:#11638A; --navy-deep:#0a3f5a; --space:#05142b; --blue:#0098DA; --sky:#91D8F7; --sun:#FFF121;
  --white:#ffffff; --mist:#eef7fc; --ink:#0d2433; --muted:#4b6676; --line:#d5e6ef;
  --display:"Jost",ui-sans-serif,system-ui,sans-serif; --body:"Source Sans 3",ui-sans-serif,system-ui,sans-serif;
  --r:18px; --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--body);font-size:17.5px;line-height:1.6}
img{max-width:100%;display:block}
a{color:var(--navy)}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:20px}
h1,h2,h3{font-family:var(--display);line-height:1.12;text-wrap:balance;margin:0;font-weight:500}
h1{font-size:clamp(36px,5.6vw,64px);letter-spacing:-.015em}
h2{font-size:clamp(28px,3.6vw,42px);letter-spacing:-.01em;color:var(--navy)}
h3{font-size:21px;color:var(--ink)}
p{margin:0}
.eyebrow{font-family:var(--display);text-transform:uppercase;letter-spacing:.32em;font-size:13px;color:var(--blue);font-weight:500;font-style:italic}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px}

/* Kopf */
.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:8px}
.logo img{height:62px;width:auto}
.nav{display:flex;gap:2px;align-items:center}
.nav a{color:var(--navy);text-decoration:none;font-family:var(--display);font-size:15.5px;padding:8px 11px;border-radius:10px;white-space:nowrap}
.nav a:hover,.nav a[aria-current=page]{background:var(--mist)}
.nav .btn{margin-left:8px}
.menu-btn{display:none;background:var(--white);border:1px solid var(--line);color:var(--navy);border-radius:10px;padding:8px 14px;font:inherit;font-family:var(--display);font-size:15px}
@media (max-width:1120px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--white);flex-direction:column;align-items:stretch;padding:10px 20px 18px;border-bottom:1px solid var(--line);box-shadow:0 16px 30px rgba(13,36,51,.08)}
  .nav.open{display:flex}
  .nav .btn{margin:8px 0 0;text-align:center}
}

/* Buttons */
.btn{display:inline-block;background:var(--sun);color:#0d2433!important;font-family:var(--display);font-weight:600;text-decoration:none;padding:13px 24px;border-radius:999px;border:0;cursor:pointer;font-size:16px;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(255,241,33,.35)}
.btn.ghost{background:transparent;color:#fff!important;border:1.5px solid rgba(145,216,247,.6)}
.btn.ghost:hover{box-shadow:none;border-color:var(--sky);background:rgba(145,216,247,.08)}
.btn.dark{background:var(--navy);color:#fff!important}
.btn.dark:hover{box-shadow:0 8px 24px rgba(17,99,138,.3)}

/* Hero mit CI-Tech-Grid */
.hero{position:relative;background:var(--space) url('img/hero-grid.jpg') center/cover no-repeat;color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(5,20,43,.92) 0%,rgba(5,20,43,.7) 50%,rgba(5,20,43,.25) 100%)}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding-block:84px 92px}
@media (max-width:960px){.hero-grid{grid-template-columns:1fr;padding-block:56px 64px}}
.hero .copy{display:grid;gap:24px;min-width:0}
.hero .eyebrow{color:var(--sky)}
.hero h1 .hl{color:var(--sun)}
.hero p.lead{font-size:20px;color:#cde6f3;max-width:600px}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap}
.hero .facts{display:flex;flex-wrap:wrap;gap:10px 26px;color:var(--sky);font-family:var(--display);font-size:15.5px}
.hero .facts span::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--sun);margin-right:9px;vertical-align:middle;box-shadow:0 0 10px var(--sun)}
.glass{background:rgba(255,255,255,.97);color:var(--ink);border-radius:22px;padding:28px;box-shadow:0 30px 60px rgba(0,0,0,.35);display:grid;gap:14px}
.glass h2{font-size:24px}
.glass p.small{color:var(--muted);font-size:15px}
.page-hero .hero-grid{grid-template-columns:1fr;padding-block:70px 74px}
.page-hero h1{font-size:clamp(32px,4.8vw,54px);max-width:860px}

/* Sektionen */
section{padding-block:88px}
.sec-head{display:grid;gap:12px;max-width:740px;margin-bottom:44px}
.sec-head p{color:var(--muted);font-size:18.5px}
.mist{background:var(--mist)}
.navy{background:var(--navy);color:#e8f5fb}
.navy h2,.navy h3{color:#fff}
.navy .eyebrow{color:var(--sky)}
.navy .sec-head p{color:#c4e3f1}

.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:960px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}

.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:28px;display:grid;gap:12px;align-content:start;transition:border-color .2s,box-shadow .2s}
a.card:hover{border-color:var(--blue);box-shadow:0 14px 34px rgba(17,99,138,.12)}
.card p{color:var(--muted)}
.card .ico{width:54px;height:54px;border-radius:16px;background:var(--navy);display:grid;place-items:center;color:var(--sun)}
.card .ico svg{width:27px;height:27px}
.card .more{color:var(--blue);font-family:var(--display);font-weight:500}

/* Zahlen-Leiste */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;background:var(--white);border-radius:var(--r);box-shadow:0 20px 50px rgba(13,36,51,.12);margin-top:-48px;position:relative;z-index:2}
.stats div{padding:24px 26px;border-left:1px solid var(--line)}
.stats div:first-child{border-left:0}
.stats b{display:block;font-family:var(--display);font-size:30px;font-weight:600;color:var(--navy);line-height:1.1}
.stats span{color:var(--muted);font-size:15px}
@media (max-width:860px){.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.stats div:nth-child(3){border-left:0}.stats div{border-top:1px solid var(--line)}.stats div:nth-child(-n+2){border-top:0}}

/* Ablauf */
.steps{counter-reset:s;display:grid;gap:26px;grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:960px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.steps{grid-template-columns:1fr}}
.step{position:relative;padding:62px 0 0;display:grid;gap:8px;align-content:start;border-top:2px solid rgba(145,216,247,.35)}
.step::before{counter-increment:s;content:"0" counter(s);position:absolute;top:16px;left:0;font-family:var(--display);font-weight:600;font-size:28px;color:var(--sun)}
.step p{color:#c4e3f1}

/* Flächen */
.area{background:var(--white);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:grid;align-content:start}
.area img{width:100%;aspect-ratio:16/10;object-fit:cover}
.area .in{padding:22px 24px 26px;display:grid;gap:10px}
.area .min{font-family:var(--display);font-size:14.5px;color:var(--navy);background:#fffbd0;border-radius:999px;padding:4px 12px;justify-self:start;font-weight:500}
.area ul{margin:0;padding-left:18px;color:var(--muted)}

/* Vergleich */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
@media (max-width:760px){.compare{grid-template-columns:1fr}}
.opt{border-radius:var(--r);padding:34px;display:grid;gap:14px;align-content:start}
.opt.a{background:var(--navy);color:#fff}
.opt.a h3{color:#fff}
.opt.b{background:var(--white);border:1px solid var(--line)}
.opt ul{margin:0;padding-left:20px;display:grid;gap:6px}
.opt.a li::marker{color:var(--sun)}
.opt.b li::marker{color:var(--blue)}
.opt .tag{font-family:var(--display);font-size:13px;letter-spacing:.26em;text-transform:uppercase;color:var(--sky);font-style:italic}
.opt.b .tag{color:var(--blue)}

/* Galerie */
.gallery{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
@media (max-width:960px){.gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px}

/* Split */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center}
@media (max-width:880px){.split{grid-template-columns:1fr}}
.split > *{min-width:0}
.split img{border-radius:var(--r);width:100%;aspect-ratio:4/3;object-fit:cover}
.split .txt{display:grid;gap:16px}
.split .txt p{color:var(--muted)}
.navy .split .txt p{color:#c4e3f1}
.checks{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.checks li{padding-left:32px;position:relative}
.checks li::before{content:"";position:absolute;left:2px;top:8px;width:16px;height:9px;border-left:3px solid var(--blue);border-bottom:3px solid var(--blue);transform:rotate(-45deg)}
.navy .checks li::before{border-color:var(--sun)}

/* CTA-Band */
.band{position:relative;overflow:hidden;background:var(--space) url('img/hero-grid.jpg') center/cover;color:#fff;border-radius:26px;padding:52px;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.band::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,20,43,.9),rgba(5,20,43,.45))}
.band > *{position:relative}
.band h2{font-size:clamp(26px,3.2vw,38px);color:#fff}
.band p{color:#cde6f3;margin-top:8px}
@media (max-width:620px){.band{padding:32px 24px}}

/* FAQ */
.faq{display:grid;gap:12px;max-width:880px}
.faq details{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:18px 22px}
.faq summary{cursor:pointer;font-family:var(--display);font-weight:500;font-size:18.5px;color:var(--navy)}
.faq details p{margin-top:10px;color:var(--muted)}

/* Formular */
.form{display:grid;gap:14px}
.form.box{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:30px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:620px){.form .row{grid-template-columns:1fr}}
.form label{display:grid;gap:6px;font-size:14.5px;font-weight:600;color:var(--ink)}
.form input,.form select,.form textarea{font:inherit;font-weight:400;padding:11px 14px;border:1px solid #c3d6e1;border-radius:11px;background:#fbfdfe;color:var(--ink);width:100%;min-width:0}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--blue);outline:2px solid rgba(0,152,218,.2)}
.form textarea{min-height:120px;resize:vertical}
.form .consent{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:13.5px;color:var(--muted)}
.form .consent input{width:auto;margin-top:4px}
.hp{position:absolute;left:-9999px}
.contact-box{display:grid;gap:20px;align-content:start}
.contact-box .item{display:grid;gap:2px}
.contact-box .item span{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.14em}
.contact-box .item a,.contact-box .item b{font-family:var(--display);font-size:22px;font-weight:500;color:var(--navy);text-decoration:none}

/* Fliesstext */
.prose{max-width:780px;display:grid;gap:16px}
.prose h1{color:var(--navy);font-size:clamp(32px,4vw,44px)}
.prose h2{font-size:24px;margin-top:18px}
.prose p,.prose li{color:#33495a}

/* Fuss */
footer{background:var(--navy-deep);color:#b9d9e8;padding-block:60px 30px;font-size:15.5px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
@media (max-width:760px){footer .cols{grid-template-columns:1fr}}
footer h3{color:#fff;font-size:17px;margin-bottom:10px}
footer a{color:#e2f2fa;text-decoration:none}
footer a:hover{color:var(--sun)}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
footer .logo img{height:84px;margin-bottom:14px}
footer .legal{border-top:1px solid rgba(145,216,247,.18);margin-top:36px;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:14px}

/* Mobile Anruf-Leiste */
.callbar{display:none}
@media (max-width:620px){
  .callbar{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:30;background:var(--white);padding:10px 14px calc(10px + env(safe-area-inset-bottom,0px));gap:10px;border-top:1px solid var(--line);box-shadow:0 -8px 20px rgba(13,36,51,.08)}
  .callbar a{flex:1;text-align:center;padding:12px;border-radius:999px;font-family:var(--display);font-weight:600;text-decoration:none}
  .callbar .c1{border:1.5px solid var(--navy);color:var(--navy)}
  .callbar .c2{background:var(--sun);color:#0d2433}
  body{padding-bottom:76px}
  section{padding-block:64px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}