:root{
  --blue:#120A8F;
  --blue-dark:#0B0860;
  --red:#C81919;
  --paper:#fffdf9;
  --sand:#f7f1e8;
  --line:#d8dbe8;
  --muted:#3f4285;
  --shadow:0 18px 50px rgba(18,10,143,.12);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  color:var(--blue);
  background:var(--paper);
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{width:min(1180px,92vw);margin:auto}

/* Header */
header{
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(255,253,249,.97);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(216,219,232,.9);
  box-shadow:0 4px 18px rgba(18,10,143,.06);
}
.nav{
  display:grid;
  grid-template-columns:390px 1fr;
  align-items:center;
  gap:28px;
  min-height:126px;
}
.brand{
  display:block;
  width:390px;
  height:118px;
  overflow:hidden;
  position:relative;
}
.brand img{
  position:absolute;
  width:390px;
  max-width:none;
  height:auto;
  left:0;
  top:-118px;
  display:block;
}
nav{
  display:flex;
  justify-content:flex-end;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 22px;
  font-size:14px;
  font-weight:700;
}
nav a{
  position:relative;
  padding:10px 0;
  white-space:nowrap;
}
nav a:hover{color:var(--red)}
nav a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:4px;
  height:2px;
  background:var(--red);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease;
}
nav a:hover::after{transform:scaleX(1)}
.nav-contact{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:11px 20px;
  border-radius:999px;
  color:#fff;
  background:var(--blue);
  box-shadow:0 8px 22px rgba(18,10,143,.18);
}
.nav-contact:hover{background:var(--red);color:#fff}
.nav-contact::after{display:none}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:0;
  border-radius:999px;
  padding:12px 18px;
  background:var(--blue);
  color:#fff;
  font:inherit;
  font-weight:700;
  box-shadow:0 8px 22px rgba(18,10,143,.22);
  cursor:pointer;
}
.btn:hover{background:var(--red)}
.btn.alt{
  background:#fff;
  color:var(--blue);
  border:1px solid var(--line);
  box-shadow:none;
}
.btn.alt:hover{background:var(--red);color:#fff}

/* Hero: logo appears only in the header */
.hero{
  padding:88px 0 72px;
  background:
    radial-gradient(circle at 85% 18%,rgba(18,10,143,.10),transparent 28%),
    linear-gradient(180deg,#fffdf9 0%,#f7f2ea 100%);
}
.hero-grid{
  display:block;
  max-width:1000px;
}
.hero-grid>div:first-child{max-width:940px}
h1,h2,h3{
  font-family:inherit;
  color:var(--red);
  line-height:1.16;
  font-weight:750;
}
h1{font-size:clamp(42px,6.5vw,78px);margin:0 0 22px;max-width:940px}
h2{font-size:clamp(31px,4vw,48px);margin:0 0 12px}
h3{font-size:22px;margin:0 0 10px}
p{margin-top:0}
.lead{
  font-size:clamp(18px,2vw,22px);
  color:var(--blue);
  margin:0 0 28px;
  max-width:900px;
}
.eyebrow{
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--red);
  font-weight:800;
  font-size:13px;
  margin-bottom:12px;
}
.subline-blue{color:var(--blue);font-size:22px;font-weight:700;margin:-4px 0 16px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}

/* Content */
section{padding:72px 0;border-top:1px solid rgba(216,219,232,.8)}
.section-head{max-width:860px;margin-bottom:30px}
.section-head p{color:var(--blue);font-size:18px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:0 10px 30px rgba(18,10,143,.06);
}
.card p,.card li{color:var(--blue)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.panel{
  background:var(--sand);
  border-radius:var(--radius);
  padding:30px;
  border:1px solid rgba(216,219,232,.95);
}
.panel ul{margin:14px 0 0;padding-left:20px}
.panel li{margin:9px 0}
.note{
  background:#fff;
  border-left:5px solid var(--red);
  border-radius:16px;
  padding:20px;
  margin-top:20px;
  box-shadow:0 10px 30px rgba(18,10,143,.06);
}
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:22px}
.review{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:18px;
  box-shadow:0 8px 24px rgba(18,10,143,.05);
}
.stars{color:var(--red);letter-spacing:.08em;margin-bottom:8px;font-weight:800}
.review p{font-size:17px;margin-bottom:0}
.mini-title{
  font-family:inherit;
  color:var(--red);
  font-size:19px;
  font-weight:750;
  letter-spacing:.01em;
  margin:30px 0 8px;
}
.showroom{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.tile{
  min-height:170px;
  border-radius:20px;
  background:linear-gradient(135deg,rgba(18,10,143,.12),rgba(200,25,25,.08)),#eee;
  border:1px solid var(--line);
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:16px;
  color:var(--blue);
  font-weight:800;
}
.tile small{display:block;color:var(--muted);font-weight:500}
.tag-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.tag{
  border:1px solid rgba(18,10,143,.18);
  background:#fff;
  border-radius:999px;
  padding:8px 12px;
  font-weight:700;
}
.notice{font-size:14px;color:var(--muted)}
.legal{max-width:850px}
.legal h2{font-size:28px;margin-top:30px}
.form{display:grid;gap:10px}
.form input,.form textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:12px;
  padding:12px 14px;
  font:inherit;
  color:var(--blue);
  background:#fff;
}
.form textarea{min-height:180px;resize:vertical}

/* Contact and footer */
.contact-band{background:var(--blue-dark);color:#fff}
.contact-band h2,.contact-band h3,.contact-band p{color:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.contact-card{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);
  padding:24px;
}
.contact-card a{text-decoration:underline;text-underline-offset:4px}
footer{padding:26px 0;background:#070440;color:rgba(255,255,255,.82);font-size:14px}
footer a:hover{color:#fff;text-decoration:underline}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot-links{display:flex;gap:14px;flex-wrap:wrap}

/* Responsive */
@media(max-width:1080px){
  .nav{grid-template-columns:310px 1fr;gap:18px;min-height:108px}
  .brand{width:310px;height:96px}
  .brand img{width:310px;top:-94px}
  nav{gap:8px 15px;font-size:13px}
}
@media(max-width:820px){
  .nav{display:flex;align-items:center;justify-content:space-between;min-height:92px}
  .brand{width:255px;height:80px}
  .brand img{width:255px;top:-78px}
  nav{display:none}
  .hero{padding:58px 0 52px}
  .split,.contact-grid{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .showroom{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
  .wrap{width:min(94vw,1180px)}
  .nav{min-height:78px}
  .brand{width:220px;height:68px}
  .brand img{width:220px;top:-67px}
  h1{font-size:clamp(38px,12vw,56px)}
  section{padding:54px 0}
  .showroom{grid-template-columns:1fr}
  .actions .btn{width:100%}
}


/* Entwicklungsstufe 2.0: Vertrauensplattform */
body.menu-open{overflow:hidden}
.positioning-line{
  max-width:900px;
  margin:-6px 0 22px;
  font-size:clamp(19px,2.2vw,25px);
  line-height:1.45;
  font-weight:700;
  color:var(--blue);
}
.menu-toggle{
  display:none;
  width:48px;
  height:48px;
  padding:11px;
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;
  cursor:pointer;
  flex:0 0 auto;
}
.menu-toggle span{
  display:block;
  height:2px;
  margin:5px 0;
  border-radius:999px;
  background:var(--blue);
  transition:transform .2s ease,opacity .2s ease;
}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.reference-mount:empty{display:none}
.reference-card{
  margin-top:34px;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
  box-shadow:0 14px 38px rgba(18,10,143,.07);
}
.reference-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 22px;
  border-bottom:1px solid var(--line);
  background:var(--sand);
  font-size:14px;
}
.reference-kicker{
  color:var(--red);
  font-weight:800;
  letter-spacing:.06em;
  text-transform:uppercase;
}
.reference-area{color:var(--muted);font-weight:650;text-align:right}
.reference-layout{display:grid;grid-template-columns:minmax(240px,.72fr) 1.7fr}
.reference-media{
  min-height:360px;
  margin:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  padding:24px;
  text-align:center;
  background:linear-gradient(145deg,rgba(18,10,143,.08),rgba(200,25,25,.05)),var(--sand);
  color:var(--blue);
  border-right:1px solid var(--line);
}
.reference-media span{font-weight:800}
.reference-media small{margin-top:4px;color:var(--muted)}
.reference-media img{width:100%;height:100%;object-fit:cover}
.reference-content{padding:30px}
.reference-summary{font-size:17px;font-weight:650;color:var(--blue)}
.reference-content blockquote{
  margin:22px 0 0;
  padding:0 0 0 20px;
  border-left:4px solid var(--red);
}
.reference-content blockquote p{margin:0 0 14px}
.reference-content blockquote p:last-child{margin-bottom:0}
.reference-gallery{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:10px;
}
.reference-gallery:empty{display:none}

.knowledge-section{background:var(--sand)}
.knowledge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.knowledge-card{
  position:relative;
  min-height:245px;
  padding:28px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
  box-shadow:0 10px 30px rgba(18,10,143,.05);
}
.knowledge-number{
  display:block;
  margin-bottom:36px;
  color:var(--muted);
  font-weight:800;
  letter-spacing:.08em;
}
.knowledge-note{
  margin:22px 0 0;
  color:var(--muted);
  font-size:15px;
}

@media(max-width:820px){
  header{backdrop-filter:none}
  .nav{position:relative}
  .menu-toggle{display:block}
  .site-navigation{
    position:fixed;
    top:92px;
    left:0;
    right:0;
    z-index:30;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    max-height:calc(100dvh - 92px);
    overflow-y:auto;
    padding:14px max(4vw,18px) 24px;
    background:rgba(255,253,249,.995);
    border-bottom:1px solid var(--line);
    box-shadow:0 18px 35px rgba(18,10,143,.14);
    transform:translateY(-120%);
    visibility:hidden;
    opacity:0;
    transition:transform .22s ease,opacity .18s ease,visibility .22s;
  }
  .site-navigation.is-open{
    transform:translateY(0);
    visibility:visible;
    opacity:1;
  }
  .site-navigation a{
    min-height:50px;
    display:flex;
    align-items:center;
    padding:12px 4px;
    border-bottom:1px solid rgba(216,219,232,.75);
    font-size:16px;
  }
  .site-navigation .nav-contact{
    min-height:48px;
    margin-top:14px;
    padding:12px 20px;
    border-bottom:0;
  }
  .reference-layout{grid-template-columns:1fr}
  .reference-media{min-height:220px;border-right:0;border-bottom:1px solid var(--line)}
  .reference-meta{align-items:flex-start;flex-direction:column}
  .reference-area{text-align:left}
  .knowledge-grid{grid-template-columns:1fr}
}
@media(max-width:520px){
  .site-navigation{top:78px;max-height:calc(100dvh - 78px)}
  .menu-toggle{width:46px;height:46px}
  .btn{min-height:48px;padding:13px 20px}
  .card,.panel,.reference-content,.knowledge-card{padding:22px}
  .reference-content blockquote{padding-left:15px}
  .reference-meta{padding:13px 18px}
  .positioning-line{font-size:19px}
}