:root{--max:1080px;--pad:18px;--radius:14px;--bg:#f8fafc;--text:#111827;--muted:#475569;--line:#e2e8f0;--brand:#0f172a;--soft:#f1f5f9}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.6;color:var(--text);background:var(--bg)}
a{color:#0f172a}
header.site-header{background:var(--brand);color:#fff}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 0}
.brand{font-weight:800;letter-spacing:.2px}
nav.main-nav a{color:#e5e7eb;text-decoration:none;margin:0 10px 0 0;font-size:14px}
nav.main-nav a:hover{text-decoration:underline;color:#fff}
.badge{font-size:12px;background:rgba(255,255,255,.12);padding:6px 10px;border-radius:999px}
main{padding:26px 0 10px}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:18px;background:#fff;box-shadow:0 1px 1px rgba(15,23,42,.02)}
.hero-card h1{font-size:clamp(26px,3.2vw,40px);line-height:1.15;margin:0 0 10px}
.hero-sub{font-size:16px;color:#334155;margin:0 0 12px}
.updated{font-size:13px;color:#64748b;margin:0 0 14px}
.notice{background:var(--soft);border:1px solid var(--line);padding:12px 14px;border-radius:var(--radius);font-size:14px;margin-top:8px}
.content-stack{display:grid;gap:16px;margin-top:16px}
.content-stack section,.content-stack article,.content-stack .box{border:1px solid var(--line);border-radius:var(--radius);padding:18px;background:#fff}
.content-stack h2{font-size:24px;line-height:1.2;margin:0 0 12px}
.content-stack h3{font-size:19px;margin:18px 0 8px;color:#0f172a}
.content-stack p,.content-stack li{color:#334155}
.content-stack ul,.content-stack ol{padding-left:22px;margin:0}
.content-stack ul li::marker{color:#0f172a}
.product{display:grid;grid-template-columns:180px 1fr;gap:16px;align-items:start}
.product img{width:180px;max-width:100%;height:auto;border-radius:12px;background:#f8fafc;border:1px solid var(--line)}
.product h3{margin-top:0}
.button,.btn{display:inline-block;padding:10px 12px;border-radius:12px;background:var(--brand);color:#fff !important;text-decoration:none;font-weight:700;font-size:14px}
.button:hover,.btn:hover{filter:brightness(1.06)}
.alt-link{margin-top:8px;font-size:13px}
.alt-link a,.alt{color:#334155;text-decoration:none;border-bottom:1px dashed #94a3b8}
.alt-link a:hover,.alt:hover{color:#0f172a;border-bottom-color:#0f172a}
.ratgeber-links{background:var(--soft)!important}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{border:1px solid var(--line);padding:10px;text-align:left}
th{background:var(--soft)}
details{border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:#fff}
details+details{margin-top:10px}
summary{cursor:pointer;font-weight:700}
footer.site-footer{margin-top:30px;padding:18px 0;border-top:1px solid var(--line);color:#475569;font-size:13px}
footer.site-footer a{color:#475569;text-decoration:none;margin-right:12px}
footer.site-footer a:hover{text-decoration:underline;color:#0f172a}
@media (max-width:740px){nav.main-nav{display:none}.product{grid-template-columns:1fr}.product img{width:100%;max-width:420px}}