:root{
  --blue:#0057a4;
  --blue-dark:#073764;
  --blue-light:#0b66b2;
  --gold:#f2b600;
  --red:#c8102e;
  --cyan:#4cd9ff;
  --surface:#ffffff;
  --surface-soft:#f5f9fc;
  --text:#17324d;
  --muted:#607387;
  --line:rgba(0,87,164,.18);
  --shadow:0 18px 46px rgba(0,44,88,.16);
  --radius:24px;
  --header-h:100px;
  --sidebar-w:286px;
  --content-max:1500px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 1rem)}
body{
  margin:0;
  min-height:100vh;
  color:var(--text);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  line-height:1.65;
  background:
    radial-gradient(circle at 92% 8%,rgba(255,255,255,.22),transparent 28rem),
    radial-gradient(circle at 10% 76%,rgba(242,182,0,.16),transparent 24rem),
    linear-gradient(145deg,var(--blue),var(--blue-light));
}
a{color:inherit}
img{display:block;max-width:100%;height:auto}
button,input,textarea,select{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
h1,h2,h3{line-height:1.15;text-wrap:balance}
p{max-width:75ch}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:1rem;top:-6rem;z-index:999;padding:.8rem 1rem;background:var(--gold);color:#08182a;border-radius:10px;font-weight:800}
.skip-link:focus{top:1rem}
.page-shell{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);max-width:1800px;margin:auto}
.main-content{min-width:0;padding:clamp(18px,3vw,48px)}
.content-wrap{width:min(100%,var(--content-max));margin:auto}
.button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.78rem 1.05rem;border:1px solid transparent;border-radius:12px;text-decoration:none;font-weight:800;transition:.2s ease}
.button:hover{transform:translateY(-2px)}
.button--gold{background:var(--gold);color:#102235;box-shadow:0 0 22px rgba(242,182,0,.28)}
.button--blue{background:var(--blue);color:#fff}
:focus-visible{outline:3px solid var(--gold);outline-offset:4px}
@media(max-width:920px){
  :root{--header-h:82px}
  .page-shell{display:block}
  .main-content{padding-inline:clamp(14px,4vw,30px)}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}

/* Migration nh_hor -> nh_hor: einspaltiger Inhaltsbereich unter horizontaler Navigation */
:root{--header-h:100px;--sidebar-w:0px}
.page-shell{display:block;max-width:1800px;margin:auto}
.main-content{width:100%;min-width:0}
@media(max-width:1050px){:root{--header-h:60px}}

/* WCAG: Inhalt visuell ausblenden, für assistive Technologien erhalten. */
.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}