/* =========================================================
   AK-Metall & Stahlbau GmbH – Industrielles Design
   Überarbeitung 2026-09: OKLCH-Token, Variable Fonts,
   dezente Scroll-Reveals, Fokus-/Touch-Feinschliff.
   Type-Scale 1.25 · Fonts self-hosted (fonts.css)
   ========================================================= */
:root{
  /* Farb-Token: Hex-Fallback zuerst, OKLCH überschreibt in modernen Browsern */
  --ink:#0e2138;        --ink:oklch(24% 0.05 255);
  --ink-2:#17324f;      --ink-2:oklch(30% 0.055 252);
  --steel:#46576b;      --steel:oklch(44% 0.035 250);
  --muted:#6c7a8b;      --muted:oklch(56% 0.028 248);
  --line:#e2e7ec;       --line:oklch(92% 0.008 240);
  --line-2:#cfd6de;     --line-2:oklch(86% 0.012 240);
  --bg:#f4f6f8;         --bg:oklch(97% 0.004 240);
  --bg-2:#eaeef2;       --bg-2:oklch(94.5% 0.007 240);
  --paper:#ffffff;
  --accent:#1f5896;     --accent:oklch(46% 0.105 253);
  --accent-2:#3174bd;   --accent-2:oklch(55% 0.115 253);
  --accent-d:#133a66;   --accent-d:oklch(35% 0.09 253);
  --accent-soft:#e7eff8;--accent-soft:oklch(94% 0.015 250);
  --sky:#9cc6ef;        --sky:oklch(80% 0.07 250);
  --blue:#274b6d;       --blue:oklch(38% 0.07 250);
  --blue-d:#1c3851;     --blue-d:oklch(31% 0.06 250);
  --radius:6px;--radius-lg:14px;--maxw:1180px;
  --fh:'Archivo Narrow','Arial Narrow','Segoe UI',system-ui,-apple-system,Arial,sans-serif;
  --fb:'Inter','Segoe UI',system-ui,-apple-system,Arial,sans-serif;
  --shadow:0 1px 2px rgba(13,22,33,.06),0 10px 28px rgba(13,22,33,.08);
  --shadow-lg:0 24px 60px rgba(13,22,33,.20);
  --ease-out:cubic-bezier(.16,1,.3,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--fb);color:var(--ink-2);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:var(--accent-d);text-decoration:none}
::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}
@supports (scrollbar-color:auto){
  html{scrollbar-color:var(--line-2) transparent}
}
h1,h2,h3,h4{font-family:var(--fh);color:var(--ink);font-weight:600;line-height:1.08;letter-spacing:.012em;text-transform:uppercase;text-wrap:balance}
h1{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:700}
h2{font-size:clamp(1.8rem,4vw,2.8rem)}
h3{font-size:1.25rem}
p{color:var(--steel)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:clamp(60px,9vw,92px) 0}
.eyebrow{display:inline-block;font-family:var(--fh);text-transform:uppercase;letter-spacing:.05em;font-size:.82rem;font-weight:600;color:var(--accent-d);margin-bottom:14px}
.eyebrow::before{content:"";display:inline-block;width:26px;height:2px;background:var(--accent);vertical-align:middle;margin-right:10px;margin-bottom:4px}
.lead{font-size:1.14rem;color:var(--steel);max-width:680px;text-wrap:pretty}
.center{text-align:center}.center .lead{margin-left:auto;margin-right:auto}
.textlink{color:var(--accent-d);font-weight:500;text-decoration:underline;text-decoration-color:color-mix(in oklab,var(--accent) 35%,transparent);text-underline-offset:3px;transition:text-decoration-color .15s}
.textlink:hover{text-decoration-color:var(--accent)}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--fh);text-transform:uppercase;letter-spacing:.03em;font-weight:600;font-size:.96rem;padding:14px 26px;border-radius:var(--radius);cursor:pointer;border:2px solid transparent;transition:transform .18s var(--ease-out),box-shadow .18s var(--ease-out),background .18s,color .18s;text-decoration:none}
.btn:hover{transform:translateY(-2px);text-decoration:none}
.btn:active{transform:translateY(0);transition-duration:.06s}
.btn--accent{background:linear-gradient(180deg,var(--accent-2) 0%,var(--accent) 55%,var(--accent-d) 100%);color:#fff;box-shadow:0 8px 20px rgba(20,58,102,.40),inset 0 1px 0 rgba(255,255,255,.28)}
.btn--accent:hover{background:linear-gradient(180deg,#3a82cf 0%,var(--accent) 60%,var(--accent-d) 100%);color:#fff;box-shadow:0 12px 26px rgba(20,58,102,.48),inset 0 1px 0 rgba(255,255,255,.35)}
.btn--dark{background:var(--ink);color:#fff;box-shadow:0 8px 20px rgba(8,22,40,.35)}
.btn--dark:hover{background:var(--ink-2);color:#fff;box-shadow:0 12px 26px rgba(8,22,40,.42)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.75)}
.btn--outline{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn--outline:hover{border-color:var(--accent);color:var(--accent-d)}

/* Header */
.hdr{position:sticky;top:0;z-index:60;background:rgba(10,25,44,.92);backdrop-filter:saturate(1.3) blur(10px);border-bottom:1px solid rgba(255,255,255,.08);transition:background .25s}
.hdr.is-scrolled{background:rgba(9,22,39,.97);box-shadow:0 10px 30px rgba(8,22,40,.28)}
.hdr .nav{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;flex-direction:column;line-height:1;font-family:var(--fh);text-transform:uppercase;color:#fff}
.brand b{font-size:1.32rem;font-weight:700;letter-spacing:.015em}
.brand span{font-size:.62rem;letter-spacing:.14em;color:var(--sky);font-weight:500;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin-left:auto}
.nav-links a{color:#cfd6de;font-family:var(--fh);text-transform:uppercase;letter-spacing:.03em;font-size:.95rem;font-weight:500;padding:9px 13px;border-radius:var(--radius);transition:color .15s,background .15s}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.08);text-decoration:none}
.nav-links a.active{color:#fff;box-shadow:inset 0 -2px 0 var(--accent)}
.nav-cta{margin-left:6px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;width:44px;height:44px;margin-left:auto;border-radius:var(--radius)}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:'';display:block;width:24px;height:2px;background:#fff;position:relative;transition:.25s;margin:0 auto}
.nav-toggle span::before{position:absolute;top:-7px}.nav-toggle span::after{position:absolute;top:7px}

/* Hero */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(8,22,40,.93) 0%,rgba(8,22,40,.74) 45%,rgba(8,22,40,.34) 100%)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 30%;filter:saturate(1.02)}
.hero-shine{position:absolute;top:0;left:-60%;width:45%;height:100%;background:linear-gradient(105deg,transparent,rgba(255,255,255,.10) 40%,rgba(255,255,255,.24) 50%,rgba(255,255,255,.10) 60%,transparent);transform:skewX(-16deg);filter:blur(5px);mix-blend-mode:screen;z-index:2;pointer-events:none;animation:heroShine 7.5s ease-in-out infinite}
@keyframes heroShine{0%{left:-60%}55%{left:135%}100%{left:135%}}
@media (prefers-reduced-motion:reduce){.hero-shine{animation:none;opacity:0}}
.hero .container{position:relative;z-index:3}
.hero .eyebrow{color:var(--sky)}
.hero h1{color:#fff;max-width:14ch}
.hero h1 .hl{color:var(--accent-2);text-shadow:0 2px 24px rgba(49,116,189,.35)}
.hero p{color:#d7dde3;font-size:1.18rem;max-width:560px;margin-top:18px;text-wrap:pretty}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.hero-meta{display:flex;gap:26px;flex-wrap:wrap;margin-top:40px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16)}
.hero-meta div b{display:block;font-family:var(--fh);font-size:1.6rem;color:#fff;font-weight:700;font-variant-numeric:tabular-nums}
.hero-meta div span{font-size:.84rem;color:#aeb7c1;letter-spacing:.02em}

/* Trust bar */
.trust{background:var(--ink);color:#fff;padding:22px 0}
.trust .row{display:flex;flex-wrap:wrap;gap:14px 40px;justify-content:center;align-items:center}
.trust .item{display:flex;align-items:center;gap:10px;font-family:var(--fh);text-transform:uppercase;letter-spacing:.04em;font-size:.95rem;color:#e7ebf0}
.trust .item svg{width:22px;height:22px;color:var(--accent-2);flex:none}

/* Section heads */
.shead{max-width:720px;margin-bottom:46px}
.shead.center{margin-left:auto;margin-right:auto}

/* Leistungen grid */
.grid{display:grid;gap:24px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.svc{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--ink);min-height:300px;display:flex;align-items:flex-end;box-shadow:var(--shadow);transition:transform .3s var(--ease-out),box-shadow .3s var(--ease-out)}
.svc:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(13,22,33,.22)}
.svc img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease-out);opacity:.92}
.svc::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,22,40,0) 30%,rgba(8,22,40,.88) 100%)}
.svc:hover img{transform:scale(1.06)}
.svc .body{position:relative;z-index:2;padding:22px;display:grid;grid-template-rows:auto 0fr;transition:grid-template-rows .35s var(--ease-out)}
.svc:hover .body,.svc:focus-visible .body{grid-template-rows:auto 1fr}
.svc h3{color:#fff;font-size:1.4rem}
.svc p{color:#d2d8de;font-size:.92rem;margin:0;min-height:0;overflow:hidden;opacity:0;transition:opacity .3s ease .05s}
.svc p::before{content:"";display:block;height:8px}
.svc:hover p,.svc:focus-visible p{opacity:1}
.svc .tag{position:absolute;top:14px;left:14px;z-index:2;background:var(--accent);color:#fff;font-family:var(--fh);text-transform:uppercase;letter-spacing:.04em;font-size:.72rem;padding:5px 11px;border-radius:50px}
/* Touch-Geräte: Beschreibungen ohne Hover immer sichtbar */
@media (hover:none){
  .svc .body{grid-template-rows:auto 1fr}
  .svc p{opacity:1}
  .svc:hover img{transform:none}
}

/* Über uns split */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.about-img{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:4/3}
.about-img img{width:100%;height:100%;object-fit:cover}
.ulist{list-style:none;margin-top:22px;display:grid;gap:12px}
.ulist li{display:flex;gap:12px;align-items:flex-start;color:var(--ink-2);font-weight:500}
.ulist svg{width:22px;height:22px;color:var(--accent);flex:none;margin-top:2px}
.stat-row{display:flex;gap:34px;flex-wrap:wrap;margin-top:30px}
.stat b{display:block;font-family:var(--fh);font-size:2.2rem;color:var(--ink);font-weight:700;line-height:1}
.stat span{font-size:.86rem;color:var(--muted)}

/* Galerie */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.gallery a{border-radius:8px;overflow:hidden;aspect-ratio:1/1;background:var(--bg-2);cursor:zoom-in}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease-out)}
.gallery a:hover img,.gallery a:focus-visible img{transform:scale(1.07)}
.gallery a.tall{grid-row:span 2;aspect-ratio:auto}

/* Kontakt */
.contact{background:var(--ink);color:#fff}
.contact h2{color:#fff}
.contact .eyebrow{color:var(--sky)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cinfo{display:grid;gap:18px;margin-top:26px}
.cinfo a{color:#fff;text-decoration:underline;text-decoration-color:rgba(255,255,255,.3);text-underline-offset:3px}
.cinfo a:hover{text-decoration-color:#fff}
.crow{display:flex;gap:16px;align-items:flex-start}
.crow .ic{width:46px;height:46px;border-radius:10px;background:rgba(255,255,255,.08);display:grid;place-items:center;flex:none;border:1px solid rgba(255,255,255,.12)}
.crow .ic svg{width:22px;height:22px;color:var(--accent-2)}
.crow b{font-family:var(--fh);text-transform:uppercase;letter-spacing:.06em;font-size:.82rem;color:#aeb7c1;font-weight:500;display:block;margin-bottom:2px}
.crow .v{font-size:1.06rem;color:#fff}
.map{border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.12);min-height:340px;height:100%}
.map iframe{width:100%;height:100%;min-height:340px;border:0;display:block;filter:grayscale(.2) contrast(1.05)}
/* Karte: Click-to-Load (Datenschutz) */
.map-consent{position:relative;display:grid;place-items:center;min-height:340px;height:100%;background:linear-gradient(160deg,#12283f,#1c3851 70%,#274b6d);text-align:center;padding:30px}
.map-consent .inner{max-width:34ch;display:grid;gap:12px;justify-items:center}
.map-consent p{color:#c3cbd3;font-size:.92rem;line-height:1.55}
.map-consent .pin{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);display:grid;place-items:center}
.map-consent .pin svg{width:22px;height:22px;color:var(--accent-2)}
.map-consent .alt{font-size:.82rem}
.map-consent .alt a{color:#c3cbd3;text-decoration:underline;text-underline-offset:3px}
.map-consent .alt a:hover{color:#fff}

/* CTA band */
.ctaband{background:linear-gradient(120deg,var(--blue-d) 0%,var(--accent) 62%,var(--accent-2) 100%);color:#fff;text-align:center;position:relative;overflow:hidden}
.ctaband::before{content:"";position:absolute;inset:0;background:radial-gradient(90% 120% at 85% 10%,rgba(255,255,255,.10),transparent 55%);pointer-events:none}
.ctaband .container{position:relative}
.ctaband h2{color:#fff}
.ctaband p{color:rgba(255,255,255,.92);margin:10px auto 24px;max-width:560px}

/* Footer */
.ftr{background:#081626;color:#aeb7c1;padding:56px 0 26px}
.ftr-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}
.ftr .brand{margin-bottom:14px}
.ftr h4{color:#fff;font-size:1rem;letter-spacing:.05em;margin-bottom:14px}
.ftr ul{list-style:none;display:grid;gap:9px}
.ftr a{color:#aeb7c1;transition:color .15s}.ftr a:hover{color:#fff}
.ftr-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.86rem}

/* Lightbox */
.lb{position:fixed;inset:0;background:rgba(10,13,17,.92);z-index:200;display:none;align-items:center;justify-content:center;padding:24px}
.lb.open{display:flex}
.lb img{max-width:92vw;max-height:88vh;border-radius:8px;box-shadow:var(--shadow-lg)}
.lb-close{position:absolute;top:20px;right:24px;color:#fff;font-size:2.4rem;cursor:pointer;line-height:1;font-family:var(--fh);background:none;border:0;padding:4px 10px}

/* Legal pages */
.legal{max-width:780px}
.legal h1{font-size:clamp(2rem,5vw,2.8rem);margin-bottom:8px}
.legal h2{font-size:1.3rem;margin:30px 0 8px}
.legal p,.legal address{color:var(--ink-2);font-style:normal;line-height:1.8}
.legal a{text-decoration:underline;text-decoration-color:color-mix(in oklab,var(--accent) 35%,transparent);text-underline-offset:3px}
.legal a:hover{text-decoration-color:var(--accent)}
.page-top{background:var(--ink);color:#fff;padding:54px 0}
.page-top h1{color:#fff}
.page-top .eyebrow{color:var(--sky)}

/* Responsive */
@media(max-width:980px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px}
  .contact-grid{grid-template-columns:1fr;gap:28px}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .ftr-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .nav-links{position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--ink);border-bottom:1px solid rgba(255,255,255,.1);max-height:0;overflow:hidden;transition:max-height .3s;margin:0}
  .nav-links.open{max-height:460px;padding:8px 0}
  .nav-links a{margin:2px 14px;text-align:center}
  .nav-links a.active{box-shadow:none;background:rgba(255,255,255,.06)}
  .nav-cta{margin:8px 14px}
  .nav-toggle{display:block}
  .section{padding:60px 0}
  .hero{min-height:80vh}
  .grid-3{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .ftr-grid{grid-template-columns:1fr}
  .stat-row{gap:24px}
}
@media(max-width:480px){
  .grid-4,.grid-3{grid-template-columns:1fr}
  .container{padding:0 16px}
  .hero-meta{gap:18px}
}

/* Handlauf-Shop-Band */
.shopband{background:var(--accent-soft)}
.shopband-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:0;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.shopband-text{padding:44px}
.shopband-text h2{margin:6px 0 10px}
.shopband-text p{font-size:1.06rem}
.shopband-text .btn{margin-top:22px}
.shopband-note{font-size:.84rem;color:var(--muted);margin-top:16px}
.shopband-img{min-height:300px}
.shopband-img img{width:100%;height:100%;object-fit:cover}
@media(max-width:760px){
  .shopband-inner{grid-template-columns:1fr}
  .shopband-img{min-height:200px;order:-1}
  .shopband-text{padding:28px}
}

/* Referenzen nach Kategorie */
.refcat{margin-bottom:50px}
.refcat:last-child{margin-bottom:0}
.refcat-head{margin-bottom:18px}
.refcat-head h3{font-size:1.5rem}
.refcat-head h3::before{content:"";display:block;width:26px;height:2px;background:var(--accent);margin-bottom:10px}
.refcat-head p{margin-top:5px;max-width:780px}

/* Ladescreen / Intro (nur erster Besuch) */
#intro{display:none}
html.intro-play #intro{position:fixed;inset:0;z-index:300;background:#0a1726;display:grid;place-items:center;overflow:hidden;transition:opacity .6s ease}
#intro.hide{opacity:0;pointer-events:none}
.introMedia{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
#intro::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,22,40,.30),rgba(8,22,40,.66));z-index:1}
#intro .center{position:relative;z-index:3;text-align:center;color:#fff}
#intro .center h2{color:#fff;font-family:var(--fh);text-transform:uppercase;letter-spacing:.03em;font-size:2rem}
#intro .center p{color:var(--sky);font-family:var(--fh);letter-spacing:.14em;text-transform:uppercase;font-size:.78rem;margin-top:6px}
#intro .bar{width:160px;height:4px;border-radius:4px;background:rgba(255,255,255,.18);margin:22px auto 0;overflow:hidden}
#intro .bar i{display:block;height:100%;width:42%;background:linear-gradient(90deg,var(--accent-2),var(--sky));border-radius:4px;animation:introBar 1.3s ease-in-out infinite}
@keyframes introBar{0%{margin-left:-42%}100%{margin-left:150%}}
@media (prefers-reduced-motion:reduce){#intro .bar i{animation:none}}

/* FAQ */
.faq{max-width:820px;margin:0 auto;display:grid;gap:10px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:0 18px;transition:border-color .2s}
.faq details:hover{border-color:var(--line-2)}
.faq details[open]{border-color:var(--accent)}
.faq summary{cursor:pointer;font-family:var(--fh);font-weight:600;color:var(--ink);padding:16px 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:1.05rem;text-transform:none;letter-spacing:0}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--accent);line-height:1;flex:none;transition:transform .25s var(--ease-out)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--steel);padding:0 0 16px;margin:0;max-width:none}

/* =========================================================
   Dezente Scroll-Reveals (CSS-nativ, off-thread)
   – nur in Browsern mit animation-timeline, respektiert
     prefers-reduced-motion. Eine ruhige Bewegung, kein Effektzoo.
   ========================================================= */
@media (prefers-reduced-motion:no-preference){
  @supports (animation-timeline:view()){
    .shead,.svc,.split>*,.shopband-inner,.faq details,.refcat,.step,.contact-grid>*{
      animation:rv .8s var(--ease-out) both;
      animation-timeline:view();
      animation-range:entry 0% entry 42%;
    }
    .grid-4 .svc:nth-child(4n+2){animation-range:entry 4% entry 46%}
    .grid-4 .svc:nth-child(4n+3){animation-range:entry 8% entry 50%}
    .grid-4 .svc:nth-child(4n){animation-range:entry 12% entry 54%}
    /* "to" hält bewusst nur opacity – so bleibt der Basis-transform frei
       und Hover-Lifts der Karten funktionieren nach dem Reveal weiter. */
    @keyframes rv{from{opacity:.001;transform:translateY(14px)}to{opacity:1}}
  }
}