:root{
  --c1:#0a5cff;
  --c2:#00b7ff;
  --text:#0a1b2b;
  --text-inv:#ffffff;
  --muted:#5d6b7a;
  --maxw:1200px;
  --radius:18px;
  --shadow:0 10px 30px rgba(10,20,30,.15);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue','Noto Sans',sans-serif;
  color:var(--text);
  background:linear-gradient(135deg,var(--c1),var(--c2));
  min-height:100%;
}
.container{max-width:var(--maxw); margin:0 auto; padding:0 20px}
.header{
  position:sticky; top:0; z-index:20;
  backdrop-filter: saturate(150%) blur(6px);
  background:linear-gradient(135deg,rgba(255,255,255,.85),rgba(255,255,255,.75));
  border-bottom:1px solid rgba(255,255,255,.35);
}
.nav{display:flex; align-items:center; gap:18px; padding:12px 0}
.nav a.logo{display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--text); font-weight:700; letter-spacing:.6px}
.nav a{color:var(--text); text-decoration:none; font-weight:600}
.nav .links{margin-left:auto; display:flex; gap:16px; flex-wrap:wrap}
.btn{
  padding:12px 18px; border-radius:999px; border:none; cursor:pointer;
  color:var(--text-inv); background:linear-gradient(135deg,var(--c1),var(--c2)); box-shadow:var(--shadow); font-weight:700;
}
.hero{color:var(--text-inv); text-align:center; padding:90px 0 70px;
  background:radial-gradient(1200px 600px at 20% -20%, rgba(255,255,255,.25), transparent 70%);
}
.card{
  background:#fff; border-radius:var(--radius); box-shadow:var(--shadow); overflow:hidden;
}
.grid{display:grid; gap:20px}
.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:900px){ .grid.cols-3{grid-template-columns:1fr 1fr} }
@media (max-width:680px){
  .grid.cols-3,.grid.cols-2{grid-template-columns:1fr}
  .nav .links{display:none}
}
.section{padding:56px 0}
.section h2{margin:0 0 14px; color:#083b7b}
.muted{color:var(--muted)}
.footer{padding:36px 0; color:var(--text-inv); backdrop-filter:saturate(150%) blur(6px);
  background:linear-gradient(135deg,rgba(0,0,0,.25),rgba(0,0,0,.2));}
.footer a{color:#dff1ff}

.fade-up{opacity:0; transform:translateY(20px); transition: all .7s ease}
.fade-up.appear{opacity:1; transform:none}

.badge{display:inline-block; padding:6px 10px; border-radius:999px; background:rgba(255,255,255,.85); color:#083b7b; font-weight:700}
.hero h1{font-size:clamp(32px,4vw,56px); margin:0 0 10px}
.hero p{font-size:clamp(16px,2.2vw,20px); margin:0 auto 24px; max-width:800px}
.cards .card{padding:22px}
.cards .icon{width:40px; height:40px}
.kontakt form{display:grid; gap:12px}
.input, textarea{
  width:100%; padding:12px 14px; border-radius:12px; border:1px solid #dde6f0; font:inherit;
}
.cta{
  display:flex; align-items:center; justify-content:center; gap:16px; flex-wrap:wrap;
  background:linear-gradient(135deg,rgba(255,255,255,.9),rgba(255,255,255,.8));
  padding:26px; border-radius:var(--radius); box-shadow:var(--shadow);
}
.small{font-size:.9rem}