/* bse it – Website-Styles. Keine externen Schriften, keine Cookies, keine Tracker. */
:root{
  /* Blau aus dem BSE-Logo (BSE_Logo_NEW_v1) */
  --bg:#f5f8fb;
  --surface:#ffffff;
  --ink:#0f1f2e;
  --muted:#4a5c6e;
  --line:#d8e2ec;
  --brand:#006cb4;
  --brand-dark:#00538c;
  --brand-tint:#e3f0fa;
  --accent:#006cb4;
  --accent-dark:#00538c;
  --accent-soft:#6fb6e8;
  --dark:#0a2540;
  --dark-2:#123a5c;
  --radius:16px;
  --shadow:0 1px 2px rgba(15,31,46,.06),0 12px 32px -12px rgba(15,31,46,.18);
  --font:"Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-display:"Segoe UI Variable Display","Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.65;overflow-x:hidden}
img,svg{max-width:100%}
a{color:var(--brand-dark)}
a:hover{color:var(--brand)}
h1,h2,h3{font-family:var(--font-display);line-height:1.15;margin:0;letter-spacing:-.015em;hyphens:auto;overflow-wrap:break-word}
h1{font-size:clamp(34px,5vw,56px);font-weight:800}
h2{font-size:clamp(26px,3.2vw,38px);font-weight:750}
h3{font-size:20px;font-weight:700;letter-spacing:-.005em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:3px solid var(--brand);outline-offset:3px;border-radius:6px}
.cta-band :focus-visible,.site-footer :focus-visible,a.card-dark:focus-visible{outline-color:#fff}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
.icon{width:24px;height:24px;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* Kopfzeile */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.logo-img{display:block;height:48px;width:auto;max-width:none;flex:none}
.logo small{padding-left:14px;border-left:1px solid var(--line);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}
.nav-toggle{display:none;align-items:center;gap:8px;background:none;border:1px solid var(--line);border-radius:10px;padding:9px 12px;font:inherit;font-weight:600;color:var(--ink);cursor:pointer}
.nav ul{list-style:none;margin:0;padding:0}
.nav>ul{display:flex;align-items:center;gap:4px}
.nav a{display:block;text-decoration:none;color:var(--ink);font-weight:600;font-size:16px;padding:10px 14px;border-radius:10px}
.nav a:hover,.nav a[aria-current="page"]{background:var(--brand-tint);color:var(--brand-dark)}
.nav .has-sub{position:relative}
.nav .sub{position:absolute;left:0;top:100%;min-width:270px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:8px;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .15s,transform .15s,visibility .15s}
.nav .has-sub:hover .sub,.nav .has-sub:focus-within .sub{opacity:1;visibility:visible;transform:none}
.nav .sub a{font-weight:500}
.nav .cta a{background:var(--accent);color:#fff}
.nav .cta a:hover{background:var(--accent-dark);color:#fff}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:17px;padding:14px 22px;border-radius:12px;border:2px solid transparent;transition:transform .12s,background .15s,border-color .15s,color .15s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff}
.btn-outline{border-color:var(--line);background:var(--surface);color:var(--ink)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-dark)}
.btn-light{background:#fff;color:var(--dark)}
.btn-light:hover{background:var(--brand-tint);color:var(--dark)}
.btn-ghost-light{border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost-light:hover{border-color:#fff;color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:700;text-decoration:none;color:var(--brand-dark)}
.link-arrow .icon{width:18px;height:18px;transition:transform .15s}
.link-arrow:hover .icon{transform:translateX(3px)}

/* Bausteine */
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand-dark);margin-bottom:14px}
.lead{font-size:clamp(18px,1.7vw,21px);color:var(--muted);max-width:38em}
section{padding:clamp(56px,8vw,96px) 0}
.tint{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* Hero */
.hero{padding:clamp(40px,6vw,80px) 0 clamp(48px,7vw,88px);background:
  radial-gradient(700px 380px at 88% 0%,rgba(0,108,180,.13),transparent 65%),
  linear-gradient(var(--line) 1px,transparent 1px) 0 0/100% 44px,
  linear-gradient(90deg,var(--line) 1px,transparent 1px) 0 0/44px 100%,
  var(--bg)}
.hero{background-blend-mode:normal}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{margin-bottom:22px}
.hero-art{width:100%;height:auto;display:block}
.hero-art .ring{fill:none;stroke:var(--brand);opacity:.18}
.hero-art .wire{stroke:var(--brand);stroke-width:2;stroke-dasharray:6 8;animation:flow 1.6s linear infinite}
.hero-art .hub{fill:#fff;stroke:var(--brand);stroke-width:2.5}
.hero-art .node{fill:#fff;stroke:var(--line);stroke-width:1.5}
.hero-art .node-i{color:var(--brand-dark)}
.hero-art .lbl{fill:var(--muted);font-family:var(--font);font-size:14px;font-weight:600}
.hero-art .dot{fill:var(--accent-soft)}
@keyframes flow{to{stroke-dashoffset:-28}}

.page-hero{padding:clamp(40px,6vw,72px) 0;background:radial-gradient(640px 300px at 92% 0%,rgba(0,108,180,.12),transparent 65%),var(--surface);border-bottom:1px solid var(--line)}
.page-hero-grid{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center}
.page-hero h1{margin-bottom:18px}
.badge-icon{width:132px;height:132px;border-radius:32px;background:var(--brand);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow);transform:rotate(4deg)}
.badge-icon .icon{width:64px;height:64px;stroke-width:1.5}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted)}

/* Zwei Spalten */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px)}
.split h2{margin-bottom:18px}

/* Karten */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:12px}
.card p{color:var(--muted);margin:0}
.card .link-arrow{margin-top:auto;padding-top:8px}
a.card{text-decoration:none;color:inherit;transition:transform .15s,box-shadow .15s,border-color .15s}
a.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--brand)}
.card-icon{width:52px;height:52px;border-radius:14px;background:var(--brand-tint);color:var(--brand-dark);display:grid;place-items:center}
.card-icon .icon{width:28px;height:28px}
.card-dark{background:var(--dark);border-color:var(--dark);color:#fff}
.card-dark p{color:#c5d6e6}
.card-dark .link-arrow{color:#fff}
.num{font-family:var(--font-display);font-weight:800;font-size:15px;color:var(--brand-dark);background:var(--brand-tint);width:40px;height:40px;border-radius:50%;display:grid;place-items:center}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.section-head h2{max-width:20em}
.section-head p{color:var(--muted);margin:10px 0 0}

/* Inhaltsseiten */
.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.prose>*+*{margin-top:22px}
.block{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px 30px;border-left:5px solid var(--brand)}
.block h2{font-size:24px;margin-bottom:10px}
.block h3{margin-bottom:8px}
.block p{color:var(--muted)}
.group-title{font-size:clamp(24px,2.6vw,30px);margin-top:44px!important}
.group-intro{color:var(--muted)}
.closing{font-size:18px;font-weight:600}
.side{position:sticky;top:96px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.side h2{font-size:14px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.side ul{list-style:none;margin:0;padding:0}
.side li a{display:flex;align-items:center;gap:12px;padding:10px 10px;border-radius:10px;text-decoration:none;color:var(--ink);font-weight:600}
.side li a:hover,.side li a[aria-current="page"]{background:var(--brand-tint);color:var(--brand-dark)}
.side .icon{width:20px;height:20px;color:var(--brand-dark)}

/* Kontakt */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.contact-card{align-items:flex-start}
.contact-card .big{font-family:var(--font-display);font-size:22px;font-weight:750;color:var(--ink);text-decoration:none;overflow-wrap:anywhere}
.contact-card a.big:hover{color:var(--brand-dark)}
address{font-style:normal}

/* Rechtstexte */
.legal{max-width:780px}
.legal h2{font-size:22px;margin:36px 0 10px}
.legal h3{font-size:18px;margin:24px 0 8px}

/* CTA-Band */
.cta-band{background:
  radial-gradient(600px 300px at 10% 0%,rgba(0,108,180,.55),transparent 70%),
  var(--dark);color:#fff}
.cta-band h2{color:#fff;margin-bottom:16px}
.cta-band p{color:#c5d6e6;max-width:44em}
.cta-inner{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center}
.cta-actions{display:flex;flex-direction:column;gap:12px}

/* Fuss */
.site-footer{background:#071a2e;color:#b5c6d6;padding:56px 0 28px;font-size:16px}
.foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px}
.site-footer h2{font-size:14px;letter-spacing:.12em;text-transform:uppercase;color:#fff;margin-bottom:14px;font-weight:700}
.site-footer a{color:#e6eef6;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li+li{margin-top:8px}
.foot-logo .logo-img{height:40px}
.foot-logo{margin-bottom:16px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;font-size:14px;color:#8ea3b8}

@media (max-width:1080px){
  .logo small{display:none}
}
@media (max-width:980px){
  .hero-grid,.split,.content-grid,.cta-inner,.page-hero-grid{grid-template-columns:1fr}
  .hero-art{max-width:460px;margin:0 auto}
  .grid-3,.contact-grid{grid-template-columns:1fr 1fr}
  .side{position:static}
  .badge-icon{display:none}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
}
@media (max-width:860px){
  .js .nav-toggle{display:inline-flex}
  .js .nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:12px 16px 18px}
  .js .nav.open{display:block}
  .nav>ul{flex-direction:column;align-items:stretch;gap:2px}
  .nav .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 0 14px;min-width:0}
  .nav .cta{margin-top:8px}
  .nav .cta a{text-align:center}
  .no-js-nav .head-row{flex-wrap:wrap;padding:12px 0}
}
@media (max-width:620px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .grid-3,.contact-grid,.foot-grid{grid-template-columns:1fr}
  .logo-img{height:36px}
  .btn{width:100%;justify-content:center}
  .block{padding:22px 20px}
}
@media (max-width:360px){
  .logo-img{height:30px}
  .head-row{gap:12px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero-art .wire{animation:none}
  .btn,a.card,.link-arrow .icon{transition:none}
}
@media print{
  .site-header,.cta-band,.nav-toggle,.side{display:none}
  body{background:#fff}
}
.h3{font-size:20px;font-weight:700;letter-spacing:-.005em}
.hero h1{font-size:clamp(31px,4.1vw,46px);hyphens:manual}
.card-dark h3{color:#fff}
.card-dark .card-icon{background:rgba(255,255,255,.12);color:#fff}

/* Software-Bereich (14.10.2026) */
.bald{display:inline-block;margin-left:6px;padding:1px 8px;border-radius:999px;background:var(--brand-tint);color:var(--brand-dark);font-size:12px;font-weight:700;letter-spacing:.02em;vertical-align:middle}
.card-dark .bald{background:rgba(255,255,255,.18);color:#fff}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:760px){.grid-2{grid-template-columns:1fr}}
ul.haken{list-style:none;margin:0;padding:0;display:grid;gap:10px;color:var(--muted)}
ul.haken li{position:relative;padding-left:30px}
/* Kopfzeile mit mehr Menüpunkten: nicht umbrechen, Handy-Menü früher */
.nav a{white-space:nowrap}
.logo small{white-space:nowrap}
@media (max-width:1480px){.logo small{display:none}}
@media (max-width:1200px){.nav a{padding:10px 10px;font-size:15px}}
@media (max-width:1060px){
  .js .nav-toggle{display:inline-flex}
  .js .nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:12px 16px 18px}
  .js .nav.open{display:block}
  .nav>ul{flex-direction:column;align-items:stretch;gap:2px}
  .nav .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 0 14px;min-width:0}
  .nav .cta{margin-top:8px}
  .nav .cta a{text-align:center}
  .nav a{font-size:16px;padding:10px 14px}
}
ol.schritte{margin:0;padding-left:22px;display:grid;gap:8px;color:var(--muted)}
ul.haken li::before{content:"";position:absolute;left:4px;top:.45em;width:12px;height:7px;border-left:2.5px solid var(--brand);border-bottom:2.5px solid var(--brand);transform:rotate(-45deg)}