:root{
  --bg:#f4f4f4;
  --paper:#ffffff;
  --ink:#1f1f21;
  --muted:#6b6b6e;
  --line:#d7d7d9;
  --dark:#2f3033;
  --dark-2:#232427;
  --dark-3:#191a1c;
  --accent:#3c3d40;
  --accent-dark:#1f2022;
  --soft:#ededee;
  --max:1180px;
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--bg);
  font-family:Arial,Helvetica,sans-serif;
  line-height:1.55;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{width:min(calc(100% - 36px),var(--max));margin:auto}

.topline{background:var(--dark);color:#fff}
.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{font-size:29px;letter-spacing:-1.8px;font-weight:300;white-space:nowrap}
.brand span{font-weight:300}.brand strong{font-weight:400}
.nav nav{display:flex;align-items:center;gap:28px;font-size:14px;font-weight:700}
.nav nav a{opacity:.88}.nav nav a:hover{opacity:1}
.breadcrumb{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb .container{min-height:44px;display:flex;align-items:center;gap:9px;font-size:13px;color:#777}
.breadcrumb strong{color:#444}

.hero{
  background:
    radial-gradient(circle at 82% 18%,rgba(0,0,0,.055),transparent 28rem),
    linear-gradient(180deg,#fff,#f7f7f5);
  padding:72px 0 76px;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:64px;align-items:center}
.eyebrow{
  display:inline-block;
  color:#fff;
  background:var(--dark);
  padding:7px 10px;
  text-transform:uppercase;
  letter-spacing:.08em;
  font-size:12px;
  font-weight:800;
}
.eyebrow.dark{background:transparent;color:var(--dark-2);padding:0}
h1{
  margin:18px 0;
  font-size:clamp(42px,5.3vw,72px);
  line-height:.98;
  letter-spacing:-3px;
  font-weight:700;
}
h1 em{font-style:normal;color:var(--accent)}
.lead{font-size:19px;line-height:1.65;color:#555;max-width:730px}
.price-row{
  display:flex;align-items:center;gap:28px;flex-wrap:wrap;
  margin:30px 0 24px;padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)
}
.price-label{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#777;font-weight:700}
.price{font-size:38px;line-height:1;color:var(--dark-2);font-weight:700;margin:3px 0 5px}
.price-row small{display:block;color:#777;font-size:11px}
.button{
  display:inline-flex;min-height:50px;padding:0 22px;align-items:center;justify-content:center;
  border-radius:4px;font-weight:700;font-size:15px;transition:.18s ease
}
.button.primary{background:var(--dark-2);color:#fff;box-shadow:0 8px 22px rgba(0,0,0,.16)}
.button.primary:hover{background:#111214;transform:translateY(-1px)}
.button.large{min-height:56px;padding:0 28px}
.usp-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:10px 18px;color:#555}
.usp-list li{position:relative;padding-left:21px}
.usp-list li:before{content:"✓";position:absolute;left:0;color:var(--dark-2);font-weight:900}

.hero-media{position:relative}
.media-card{
  background:#fff;border:1px solid #d7d7d3;padding:24px;
  box-shadow:0 24px 55px rgba(0,0,0,.1);
}
.media-card img{width:100%;aspect-ratio:1.55/1;object-fit:cover;object-position:center}
.media-note{
  margin-top:14px;padding-top:13px;border-top:1px solid var(--line);
  font-size:13px;color:#666;text-align:center;font-weight:700
}

section{padding:82px 0}
.section-title{max-width:780px;margin-bottom:36px}
.section-title>span{
  display:block;text-transform:uppercase;letter-spacing:.09em;font-size:12px;
  font-weight:800;color:var(--dark-2);margin-bottom:8px
}
.section-title h2,.specialist-copy h2,.faq-grid h2,.final-cta h2{
  margin:0 0 12px;font-size:clamp(31px,4vw,48px);line-height:1.08;letter-spacing:-1.8px
}
.section-title p,.specialist-copy p,.faq-grid>div:first-child p{color:var(--muted);font-size:17px}

.problem-section{background:#fff}
.problem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.problem-grid article{
  padding:25px;background:#f8f8f6;border:1px solid #e3e3df;border-radius:7px
}
.icon{
  width:42px;height:42px;display:grid;place-items:center;background:var(--dark);color:#fff;
  font-weight:800;font-size:12px;border-radius:3px;margin-bottom:16px
}
.problem-grid h3{margin:0 0 8px;font-size:19px}
.problem-grid p{margin:0;color:#666;font-size:14px}

.specialist-section{background:var(--dark);color:#fff}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:58px;align-items:center}
.specialist-copy p{color:#d2d2d2}
.tech-points{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:26px}
.tech-points div{border:1px solid #505055;padding:16px;background:#37373a}
.tech-points strong{display:block;color:#ffffff;font-size:18px}
.tech-points span{font-size:12px;color:#c7c7c7}
.repair-card{
  background:#fff;color:var(--ink);padding:34px;border-left:5px solid #55565a
}
.repair-label{text-transform:uppercase;letter-spacing:.08em;font-size:11px;font-weight:800;color:#777}
.repair-card h3{font-size:29px;line-height:1.15;margin:10px 0 14px}
.repair-card p{color:#666}
.repair-card .highlight{
  color:#333;font-weight:700;padding:15px;background:#f3f3ee;border:1px solid #e1e1db
}

.included-section{background:#f3f3f0}
.included-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.included-grid ul{list-style:none;margin:0;padding:0;background:#fff;border:1px solid #dfdfda}
.included-grid li{padding:15px 18px 15px 45px;border-bottom:1px solid #ecece8;position:relative}
.included-grid li:last-child{border-bottom:0}
.included-grid li:before{content:"✓";position:absolute;left:19px;color:var(--dark-2);font-weight:900}

.steps-section{background:#fff}
.centered{text-align:center;margin-left:auto;margin-right:auto}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.steps article{border-top:3px solid #45464a;padding:22px;background:#f8f8f6}
.steps b{
  width:34px;height:34px;display:grid;place-items:center;background:var(--dark);color:#fff;
  border-radius:50%;font-size:13px;margin-bottom:14px
}
.steps h3{margin:0 0 7px;font-size:18px}
.steps p{margin:0;color:#666;font-size:14px}
.center-cta{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:34px}
.center-cta span{font-size:13px;color:#777}

.faq-section{background:#f4f4f1}
.faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:52px;align-items:start}
.faq details{background:#fff;border:1px solid #deded9;margin-bottom:10px}
.faq summary{cursor:pointer;padding:18px 20px;font-weight:700}
.faq details p{margin:0;padding:0 20px 18px;color:#666}

.final-cta{background:#fff}
.cta-box{
  background:var(--dark);color:#fff;padding:38px 42px;
  display:flex;justify-content:space-between;align-items:center;gap:30px
}
.cta-box>div>span{text-transform:uppercase;letter-spacing:.08em;font-size:12px;color:#cecece}
.cta-box h2{margin-top:5px;margin-bottom:0;max-width:650px}
.cta-actions{display:flex;align-items:center;gap:20px;flex-shrink:0}
.cta-actions strong{font-size:29px;color:#ffffff}

footer{background:var(--dark-2);color:#fff;padding:34px 0}
.footer-grid{display:flex;align-items:center;justify-content:space-between;gap:20px}
.footer-grid>div:last-child{display:flex;gap:22px;font-size:13px;color:#ccc}
.footer-brand{font-size:25px}
.mobile-bar{display:none}

@media (max-width:900px){
  .nav nav{display:none}
  .hero-grid,.split,.faq-grid{grid-template-columns:1fr}
  .problem-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .hero-media{order:-1}
  .hero{padding-top:36px}
  .media-card{max-width:660px}
  .cta-box{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%;justify-content:space-between}
}
@media (max-width:620px){
  body{padding-bottom:68px}
  .container{width:min(calc(100% - 24px),var(--max))}
  .breadcrumb{display:none}
  .hero{padding:28px 0 48px}
  h1{font-size:43px;letter-spacing:-2px}
  .lead{font-size:17px}
  .price-row{align-items:flex-start}
  .price-row .button{width:100%}
  .usp-list,.problem-grid,.included-grid,.steps,.tech-points{grid-template-columns:1fr}
  section{padding:58px 0}
  .media-card{padding:12px}
  .cta-box{padding:28px 22px}
  .cta-actions{flex-direction:column;align-items:flex-start}
  .cta-actions .button{width:100%}
  .footer-grid{align-items:flex-start;flex-direction:column}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:50;
    min-height:68px;background:#fff;border-top:1px solid #ccc;padding:9px 12px;
    align-items:center;justify-content:space-between;gap:12px;box-shadow:0 -5px 22px rgba(0,0,0,.12)
  }
  .mobile-bar span{font-size:12px;color:#666}
  .mobile-bar span strong{display:block;font-size:19px;color:var(--dark-2)}
  .mobile-bar a{background:var(--dark-2);color:#fff;font-weight:700;padding:12px 14px;border-radius:4px}
}


/* ---- ECUswap monochrome refinement ---- */
.button.primary{
  background:#2c2d30;
  color:#fff;
  border:1px solid #2c2d30;
  box-shadow:0 8px 22px rgba(0,0,0,.14);
}
.button.primary:hover{
  background:#111214;
  border-color:#111214;
}
.price{
  color:#202124;
}
.section-title>span,
.eyebrow.dark{
  color:#46474b;
}
.usp-list li:before,
.included-grid li:before{
  color:#333438;
}
.tech-points strong{
  color:#fff;
}
.cta-actions strong{
  color:#fff;
}
.mobile-bar span strong{
  color:#222326;
}
.mobile-bar a{
  background:#252629;
}
.hero{
  background:
    radial-gradient(circle at 82% 18%,rgba(0,0,0,.05),transparent 28rem),
    linear-gradient(180deg,#fff,#f5f5f5);
}

/* Hero thumbnail strip */
.hero-thumbs{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:10px;
  margin-top:10px;
}
.thumb{
  min-height:92px;
  border:1px solid #d7d7d9;
  background:#fff;
}
.thumb.placeholder{
  display:grid;
  place-items:center;
  background:
    linear-gradient(135deg,#f3f3f3,#e4e4e5);
  color:#777;
  font-size:11px;
  text-align:center;
  padding:10px;
}

.hero-thumbs .thumb {
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #fff;
}

.hero-thumbs .thumb span {
  width: 100%;
  height: 100%;
  display: block;
}

.hero-thumbs .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Workshop image section */
.workshop-section{
  background:#f0f0f1;
}
.workshop-grid{
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:16px;
}
.workshop-card{
  margin:0;
  background:#fff;
  border:1px solid #d9d9db;
}
.workshop-card.large{
  grid-row:span 2;
}
.image-placeholder{
  min-height:245px;
  display:grid;
  place-items:center;
  text-align:center;
  padding:28px;
  color:#6f7074;
  font-size:13px;
  background:
    linear-gradient(135deg,#ececed,#dcdcdf);
}
.workshop-card.large .image-placeholder{
  min-height:505px;
}
.image-placeholder.dark{
  background:
    linear-gradient(145deg,#3a3b3e,#252629);
  color:#d5d5d7;
}
.workshop-card figcaption{
  display:flex;
  flex-direction:column;
  gap:5px;
  padding:16px 18px 18px;
}
.workshop-card figcaption strong{
  font-size:16px;
}
.workshop-card figcaption span{
  font-size:13px;
  color:#6c6c70;
}
@media(max-width:900px){
  .workshop-grid{grid-template-columns:1fr 1fr}
  .workshop-card.large{grid-row:auto;grid-column:1/-1}
  .workshop-card.large .image-placeholder{min-height:360px}
}
@media(max-width:620px){
  .hero-thumbs{grid-template-columns:1fr 1fr 1fr}
  .thumb{min-height:72px}
  .workshop-grid{grid-template-columns:1fr}
  .workshop-card.large{grid-column:auto}
  .workshop-card.large .image-placeholder,.image-placeholder{min-height:240px}
}


/* ---- Final header: logo + one CTA + Impressum ---- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  box-shadow:0 1px 0 rgba(255,255,255,.04),0 4px 18px rgba(0,0,0,.12);
}
.topline{
  background:#2f3033;
}
.nav{
  min-height:72px;
}
.brand-logo{
  display:flex;
  align-items:center;
  min-width:0;
}
.brand-logo img{
  display:block;
  width:178px;
  height:auto;
  max-height:42px;
  object-fit:contain;
  object-position:left center;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:20px;
  margin-left:auto;
}
.header-imprint{
  color:#e4e4e5;
  font-size:13px;
  font-weight:600;
}
.header-imprint:hover{
  color:#fff;
}
.header-cta{
  min-height:44px;
  padding:0 18px;
  border:1px solid rgba(255,255,255,.65);
  background:#fff;
  color:#242529;
  border-radius:3px;
  font-size:14px;
  box-shadow:none;
}
.header-cta:hover{
  background:#e9e9ea;
  border-color:#fff;
  color:#111214;
  transform:none;
}

.footer-brand img{
  width:145px;
  height:auto;
}
footer .footer-grid>div:last-child{
  display:flex;
  gap:18px;
}
footer a:hover{
  color:#fff;
}

/* ---- Mobile QA refinements ---- */
@media (max-width:900px){
  .nav{
    min-height:66px;
  }
  .brand-logo img{
    width:156px;
  }
  .header-actions{
    gap:14px;
  }
  .header-cta{
    min-height:42px;
    padding:0 14px;
  }

  .hero-grid{
    gap:34px;
  }
  .hero-media{
    order:0;
  }
  .hero-copy{
    order:0;
  }

  .media-card img{
    aspect-ratio:auto;
    max-height:460px;
    object-fit:contain;
    background:#fff;
  }

  .price-row{
    justify-content:space-between;
  }
  .price-row .button{
    min-width:220px;
  }

  .workshop-grid{
    gap:12px;
  }
}

@media (max-width:700px){
  .nav{
    min-height:62px;
    gap:12px;
  }
  .brand-logo img{
    width:138px;
  }
  .header-actions{
    gap:10px;
  }
  .header-imprint{
    font-size:12px;
  }
  .header-cta{
    min-height:40px;
    padding:0 12px;
    font-size:12px;
  }

  .hero-grid{
    gap:26px;
  }
  .hero-copy h1{
    max-width:12ch;
  }
}

@media (max-width:620px){
  .site-header{
    position:sticky;
  }
  .nav{
    min-height:58px;
  }
  .brand-logo img{
    width:124px;
  }
  .header-imprint{
    display:none;
  }
  .header-cta{
    min-height:38px;
    padding:0 11px;
    font-size:11px;
    white-space:nowrap;
  }

  .hero{
    padding-top:30px;
  }
  .hero-grid{
    display:flex;
    flex-direction:column;
    gap:24px;
  }
  .hero-copy{
    width:100%;
  }
  .hero-media{
    width:100%;
  }

  h1{
    font-size:40px;
    line-height:1.01;
    letter-spacing:-1.8px;
  }
  .lead{
    font-size:16px;
    line-height:1.55;
  }

  .price-row{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
    padding:20px 0;
  }
  .price-row .button{
    width:100%;
    min-width:0;
  }

  .usp-list{
    gap:9px;
  }
  .usp-list li{
    font-size:14px;
  }

  .media-card img{
    width:100%;
    max-height:none;
    object-fit:contain;
  }

  .hero-thumbs{
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:7px;
  }
  .thumb{
    min-width:0;
    min-height:68px;
  }
  .thumb.placeholder{
    font-size:9px;
    padding:6px;
  }

  .section-title h2,
  .specialist-copy h2,
  .faq-grid h2,
  .final-cta h2{
    font-size:31px;
    letter-spacing:-1.2px;
  }

  .problem-grid,
  .included-grid,
  .steps,
  .tech-points,
  .faq-grid,
  .workshop-grid{
    grid-template-columns:1fr;
  }

  .repair-card{
    padding:24px;
  }

  .workshop-card.large .image-placeholder,
  .image-placeholder{
    min-height:220px;
  }

  .center-cta .button{
    width:100%;
    text-align:center;
  }

  .cta-box{
    gap:20px;
  }
  .cta-actions{
    width:100%;
  }

  .footer-grid{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
  }
  .footer-brand img{
    width:118px;
  }

  .mobile-bar{
    min-height:64px;
  }
  .mobile-bar a{
    font-size:12px;
    white-space:nowrap;
  }
}

@media (max-width:390px){
  .container{
    width:min(calc(100% - 18px),var(--max));
  }
  .brand-logo img{
    width:112px;
  }
  .header-cta{
    padding:0 9px;
    font-size:10px;
  }
  h1{
    font-size:36px;
  }
  .hero-thumbs{
    grid-template-columns:1fr;
  }
  .thumb{
    min-height:60px;
  }
  .mobile-bar{
    gap:8px;
    padding:8px 9px;
  }
  .mobile-bar span{
    font-size:11px;
  }
  .mobile-bar span strong{
    font-size:17px;
  }
  .mobile-bar a{
    padding:11px 10px;
    font-size:11px;
  }
}