:root{
  --primary:#2b3440;
  --primary-dark:#1a2028;
  --accent:#2f80ed;
  --ink:#16202b;
  --muted:#5b6875;
  --line:#e5e9ee;
  --bg:#ffffff;
  --bg-soft:#f2f4f7;
  --radius:14px;
  --maxw:1080px;
  --font:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary-dark);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.25;color:var(--ink);font-weight:700}
h1{font-size:clamp(1.8rem,4.2vw,2.7rem);margin:.2em 0 .5em}
h2{font-size:clamp(1.35rem,3vw,1.8rem);margin:2em 0 .6em;padding-top:.2em}
h3{font-size:1.15rem;margin:1.5em 0 .4em}
p{margin:0 0 1.1em}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:20px}
.skip{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;z-index:100}
.skip:focus{left:8px;top:8px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:1.15rem}
.brand:hover{text-decoration:none}
.mainnav{list-style:none;display:flex;gap:6px;margin:0;padding:0}
.mainnav a{display:block;padding:8px 12px;border-radius:8px;color:var(--ink);font-size:.97rem;font-weight:500}
.mainnav a:hover{background:var(--bg-soft);text-decoration:none}
.mainnav a[aria-current="page"]{color:var(--primary-dark);background:var(--bg-soft)}
.navtoggle,.navbtn{display:none}

/* Breadcrumb */
.breadcrumb{padding-top:16px;font-size:.86rem;color:var(--muted);display:flex;gap:8px;align-items:center}
.breadcrumb a{color:var(--muted)}
.breadcrumb span[aria-hidden]{opacity:.5}

/* Hero */
.hero{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border-radius:var(--radius);padding:44px 34px;margin:22px 0 8px}
.hero h1{color:#fff;margin-top:0}
.hero p{font-size:1.12rem;color:rgba(255,255,255,.92);max-width:60ch}
.hero .btn{background:#fff;color:var(--primary-dark)}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.hero-badges span{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.25);padding:6px 12px;border-radius:999px;font-size:.85rem}

/* Article */
main{padding-bottom:56px}
.article{max-width:760px;margin-inline:auto;padding-top:14px}
.hero + .article,.article:first-child{max-width:var(--maxw)}
.lead{font-size:1.2rem;color:var(--muted);margin-bottom:1.4em}
.meta{font-size:.85rem;color:var(--muted);margin:-.3em 0 1.4em}
.article ul,.article ol{margin:0 0 1.2em;padding-left:1.3em}
.article li{margin:.35em 0}

/* Cards grid on homepage */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:24px 0}
.card{display:block;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:box-shadow .18s,transform .18s;color:var(--ink)}
.card:hover{text-decoration:none;box-shadow:0 10px 30px rgba(20,32,43,.09);transform:translateY(-2px)}
.card h3{margin:.2em 0 .3em;color:var(--primary-dark)}
.card p{color:var(--muted);margin:0;font-size:.95rem}
.card .arrow{color:var(--primary);font-weight:700;margin-top:10px;display:inline-block}

/* Buttons */
.btn{display:inline-block;background:var(--primary);color:#fff;padding:13px 24px;border-radius:10px;font-weight:600;border:0;cursor:pointer;font-size:1rem}
.btn:hover{background:var(--primary-dark);text-decoration:none}
.btn--ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}

/* Tables */
.table-wrap{overflow-x:auto;margin:0 0 1.4em}
table{border-collapse:collapse;width:100%;font-size:.96rem}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:var(--bg-soft);font-weight:700}
tbody tr:hover{background:var(--bg-soft)}

/* Infobox / Checklist / Steps */
.infobox{background:var(--bg-soft);border-left:4px solid var(--primary);border-radius:0 12px 12px 0;padding:16px 20px;margin:0 0 1.4em}
.infobox--warn{border-left-color:#2f80ed;background:#fdf1e7}
.infobox strong{display:block;margin-bottom:.3em}
.checklist{list-style:none;padding-left:0}
.checklist li{position:relative;padding-left:30px;margin:.5em 0}
.checklist li::before{content:"✓";position:absolute;left:0;top:0;color:var(--primary);font-weight:800}
.steps{list-style:none;counter-reset:step;padding-left:0}
.steps li{position:relative;padding-left:46px;margin:0 0 1em;min-height:34px}
.steps li::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:-2px;width:32px;height:32px;background:var(--primary);color:#fff;border-radius:50%;display:grid;place-items:center;font-weight:700}

/* CTA / Empfehlung */
.cta{display:flex;gap:16px;align-items:flex-start;background:#e9f1fd;border:1px solid #c3ddfb;border-radius:var(--radius);padding:18px 20px;margin:1.6em 0}
.cta__icon{font-size:1.6rem;line-height:1;flex-shrink:0}
.cta__lead{margin:0 0 .3em;font-weight:600}
.cta__hint{margin:0;font-size:.92rem;color:var(--muted)}

/* TOC */
.toc{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin:0 0 1.8em;font-size:.95rem}
.toc strong{display:block;margin-bottom:.4em}
.toc ul{margin:0;padding-left:1.1em;columns:2;column-gap:26px}
.toc a{color:var(--primary-dark)}

/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:12px;margin:0 0 10px;overflow:hidden;background:var(--bg)}
.faq-item summary{cursor:pointer;padding:15px 18px;font-weight:600;list-style:none;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:18px;color:var(--primary);font-weight:700}
.faq-item[open] summary::after{content:"–"}
.faq-a{padding:0 18px 16px;color:var(--muted)}
.faq-a p:last-child{margin-bottom:0}

/* Related */
.related{margin-top:2.4em;border-top:1px solid var(--line);padding-top:1.2em}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.rel-card{border:1px solid var(--line);border-radius:12px;padding:16px;background:var(--bg-soft)}
.rel-card:hover{text-decoration:none;border-color:var(--primary)}
.rel-label{display:block;font-weight:700;color:var(--primary-dark);margin-bottom:.2em}
.rel-desc{display:block;font-size:.9rem;color:var(--muted)}

/* Contact form */
.form-grid{display:grid;gap:14px;max-width:560px}
.form-grid label{font-weight:600;font-size:.95rem}
.form-grid input,.form-grid textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:1rem}
.form-grid input:focus,.form-grid textarea:focus{outline:2px solid var(--primary);border-color:var(--primary)}
.hp{position:absolute;left:-9999px}
.form-status{padding:12px 16px;border-radius:10px;display:none}
.form-status.ok{display:block;background:#e7f7ec;color:#166534}
.form-status.err{display:block;background:#fdecec;color:#b91c1c}

/* Footer */
.site-footer{background:#12171d;color:#c7d0da;margin-top:40px;padding:44px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(auto-fit,minmax(150px,1fr));gap:28px}
.site-footer .brand{color:#fff}
.footer-grid p{color:#9aa7b4;font-size:.92rem}
.fcol h3{color:#fff;font-size:.95rem;margin:0 0 .7em}
.fcol ul{list-style:none;margin:0;padding:0}
.fcol li{margin:.4em 0}
.fcol a{color:#c7d0da;font-size:.92rem}
.fcol a:hover{color:#fff}
.footer-legal{margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);font-size:.82rem;color:#8a97a4}
.footer-legal .disclaimer{margin-top:.4em}

/* Mobile nav */
@media (max-width:760px){
  .navbtn{display:block;width:44px;height:44px;cursor:pointer;position:relative}
  .navbtn span,.navbtn span::before,.navbtn span::after{position:absolute;left:10px;width:24px;height:2px;background:var(--ink);transition:.2s}
  .navbtn span{top:21px}
  .navbtn span::before{content:"";top:-7px}
  .navbtn span::after{content:"";top:7px}
  .mainnav{position:fixed;inset:64px 0 auto 0;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:10px 16px;gap:2px;transform:translateY(-120%);transition:transform .22s;box-shadow:0 12px 24px rgba(0,0,0,.08)}
  .navtoggle:checked ~ .mainnav{transform:translateY(0)}
  .mainnav a{padding:12px 10px}
  .toc ul{columns:1}
  .hero{padding:32px 22px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}