:root{
  --navy:#0f2a43; --navy-2:#1b4263; --mist:#eef2f4; --steel:#5b6b78; --line:#d5dde3;
  --buoy:#e6b422; --ink:#17232d; --white:#fff;
  --serif:Georgia,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:5rem}
body{margin:0;font:1rem/1.65 var(--sans);color:var(--ink);background:var(--white)}
img{max-width:100%;display:block}
a{color:var(--navy-2)}
:focus-visible{outline:3px solid var(--buoy);outline-offset:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--buoy);color:var(--navy);padding:.6rem 1rem;z-index:100}
.skip:focus{left:0}
.wrap{width:min(1120px,92%);margin-inline:auto}

/* Kopfbereich */
.topbar{background:var(--navy);color:#fff;font-size:.9rem}
.topbar .wrap{display:flex;flex-wrap:wrap;gap:.25rem 1.5rem;padding:.45rem 0;justify-content:flex-end}
.topbar a{color:#fff;text-decoration:none}
.topbar a:hover{text-decoration:underline}
header.site{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
header.site .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem 2rem;padding:.6rem 0}
.brand img{height:100px;width:auto}
nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.25rem 1.5rem}
nav a{display:block;padding:.4rem 0;color:var(--navy);font-weight:600;text-decoration:none;border-bottom:3px solid transparent}
nav a:hover{border-bottom-color:var(--buoy)}

/* Einstieg */
.hero{position:relative;color:#fff;background:var(--navy) url("referenzen/referenzen001.jpg") center/cover no-repeat;min-height:min(78vh,640px);display:flex;align-items:flex-end}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(15,42,67,.92) 15%,rgba(15,42,67,.35))}
.hero .wrap{position:relative;padding:4rem 0 3rem}
.hero h1{font:700 clamp(2rem,6vw,3.75rem)/1.1 var(--serif);margin:0 0 1rem;max-width:18ch}
.hero p{font-size:1.15rem;max-width:44ch;margin:0 0 1.75rem}
.btn{display:inline-block;background:var(--buoy);color:var(--navy);font-weight:700;padding:.8rem 1.4rem;border-radius:3px;text-decoration:none}
.btn:hover{background:#f3c93e}
.btn.ghost{background:transparent;color:#fff;border:2px solid #fff;margin-left:.5rem}
.btn.ghost:hover{background:rgba(255,255,255,.15)}

/* Abschnitte */
section{padding:clamp(3rem,8vw,6rem) 0}
section.tint{background:var(--mist)}
h2{font:700 clamp(1.6rem,4vw,2.4rem)/1.2 var(--serif);color:var(--navy);margin:0 0 1.5rem}
h3{font:700 1.4rem/1.3 var(--serif);color:var(--navy);margin:0 0 1rem}
.article{display:grid;gap:2.5rem}
.article p{max-width:62ch}
.lead{font:1.3rem/1.55 var(--serif);color:var(--navy)}
figure{margin:0}
figure img{width:100%;border-radius:3px}
.facts{list-style:none;padding:0;margin:1.5rem 0 0;border-top:1px solid var(--line)}
.facts li{padding:.8rem 0;border-bottom:1px solid var(--line)}
.band{margin-top:clamp(3rem,8vw,5rem)}
.band img{width:100%;max-height:420px;object-fit:cover;border-radius:3px}

/* Leistungen */
.cols{display:grid;gap:3rem}
.service img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:3px;margin-bottom:1.25rem;background:var(--line)}
.service ul{list-style:none;margin:0 0 1.25rem;padding:0;columns:1}
.service li{padding:.55rem 0;border-bottom:1px solid var(--line);break-inside:avoid}
.service li small{display:block;color:var(--steel)}
.note{font-weight:600;color:var(--navy)}
.pair{display:grid;gap:1rem;margin-top:3rem}
.pair img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:3px}

/* Galerie */
.grid{list-style:none;margin:0;padding:0;display:grid;gap:.6rem;grid-template-columns:repeat(2,1fr)}
.grid button{all:unset;display:block;width:100%;cursor:zoom-in;aspect-ratio:4/3;background:var(--line);border-radius:3px;overflow:hidden}
.grid button:focus-visible{outline:3px solid var(--buoy);outline-offset:2px}
.grid img{width:100%;height:100%;object-fit:cover;transition:transform .2s}
.grid button:hover img{transform:scale(1.04)}
.more{margin-top:1.75rem;text-align:center}
.more button{font:inherit;font-weight:700;cursor:pointer;background:var(--navy);color:#fff;border:0;padding:.8rem 1.6rem;border-radius:3px}
.more button:hover{background:var(--navy-2)}

/* Lightbox */
dialog{border:0;padding:0;background:transparent;max-width:none;max-height:none;width:100%;height:100%}
dialog::backdrop{background:rgba(8,20,32,.92)}
.lb{position:relative;height:100%;display:grid;grid-template-rows:1fr auto;padding:3.5rem 1rem 1rem}
.lb img{margin:auto;max-height:calc(100vh - 8rem);width:auto;object-fit:contain}
.lb p{color:#fff;text-align:center;margin:.75rem 0 0}
.lb button{position:absolute;font:inherit;cursor:pointer;background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.5);border-radius:3px;padding:.6rem .9rem;font-size:1.1rem}
.lb button:hover{background:rgba(255,255,255,.3)}
.lb .x{top:.75rem;right:.75rem}
.lb .pv,.lb .nx{top:50%;transform:translateY(-50%)}
.lb .pv{left:.5rem}.lb .nx{right:.5rem}

/* Kontakt */
.contact{display:grid;gap:2.5rem}
address{font-style:normal;font-size:1.15rem}
address a{font-weight:600}
.maps{display:grid;gap:1rem;grid-template-columns:1fr 1fr}
.maps img{width:100%;border:1px solid var(--line);border-radius:3px;background:#fff}
.maps figcaption,.cap{font-size:.9rem;color:var(--steel);margin-top:.4rem}

footer{background:var(--navy);color:#dbe5ec;padding:2.5rem 0;font-size:.95rem}
footer .wrap{display:flex;flex-wrap:wrap;gap:1rem 2rem;justify-content:space-between}
footer ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.5rem 1.5rem}
footer a{color:#fff}

@media(min-width:720px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .pair{grid-template-columns:1fr 1fr}
  .service ul{columns:1}
}
@media(min-width:960px){
  .article{grid-template-columns:1.3fr 1fr;align-items:start}
  .cols{grid-template-columns:1fr 1fr}
  .grid{grid-template-columns:repeat(4,1fr)}
  .contact{grid-template-columns:1fr 1.3fr}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.grid img{transition:none}}

/* Rechtstexte */
.legal{padding:2.5rem 0 4rem;max-width:820px}
.legal h1{font:700 clamp(1.8rem,5vw,2.6rem)/1.2 var(--serif);color:var(--navy);margin:.5rem 0 1.5rem}
.legal h2{font-size:clamp(1.25rem,3vw,1.6rem);margin:2.5rem 0 1rem}
.legal h3{font-size:1.1rem;margin:1.75rem 0 .5rem}
.legal p,.legal li{max-width:70ch}
.legal ul{padding-left:1.25rem}
.legal li{margin:.4rem 0}
.legal .back{margin:0}
.ph{background:#fff3c4;color:#5a4300;padding:.1rem .35rem;border-radius:3px}
.warn{background:#fff3c4;border-left:5px solid var(--buoy);padding:1rem 1.25rem;color:#3d2f00}