:root{
  --blue:#1f5fa8; --blue-dark:#16467f; --ink:#16202b; --muted:#5a6776;
  --bg:#f4f6f9; --card:#ffffff; --line:#e1e7ee; --pos:#1a7f37; --neg:#c0392b; --warn:#9a6700;
  --warn-bg:#fff8e6; --warn-line:#f0dca0; --pos-bg:#e6f4ea; --neg-bg:#fbeae8;
  --shadow:0 1px 3px rgba(20,40,70,.07),0 8px 24px rgba(20,40,70,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6}
.wrap{max-width:780px;margin:0 auto;padding:0 18px}
a{color:var(--blue-dark)}
header{background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;padding:30px 0 26px}
header .wrap{display:flex;flex-direction:column;gap:6px}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.4rem;letter-spacing:.2px;color:#fff;text-decoration:none}
.brand .ic{font-size:1.6rem}
nav.main a{color:#e8f0fa;text-decoration:none;font-size:.9rem;font-weight:600;margin-left:16px;opacity:.95}
nav.main a:hover{opacity:1;text-decoration:underline}
header h1{font-size:1.55rem;margin:10px 0 6px;line-height:1.25}
header p.lead{margin:4px 0 0;opacity:.95;max-width:56ch;font-size:1.02rem}
.catalyst{background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:12px;padding:14px 16px;margin:16px 0 0;
  font-size:.92rem;color:#6a5618}
.catalyst b{color:#5a4711}
main{padding:22px 0 50px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin:18px 0;box-shadow:var(--shadow)}
h2{font-size:1.2rem;margin:0 0 4px}
.sub{color:var(--muted);font-size:.9rem;margin:0 0 16px}
.step{font-size:.74rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);margin:18px 0 8px}
.step:first-of-type{margin-top:0}
label{display:block;font-size:.82rem;font-weight:600;color:var(--muted);margin-bottom:5px}
label .hint{font-weight:500;color:#90a0b0}
input[type=number],input[type=text],select{width:100%;padding:10px 11px;border:1px solid var(--line);border-radius:9px;font-size:1rem;background:#fff;color:var(--ink)}
input:focus,select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(31,95,168,.15)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.field{margin-bottom:12px}
.seg{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden}
.seg button{flex:1;border:0;background:#fff;padding:9px 0;font-size:.85rem;font-weight:600;color:var(--muted);cursor:pointer}
.seg button.on{background:var(--blue);color:#fff}
.seg button:not(:last-child){border-right:1px solid var(--line)}
.check{display:flex;align-items:center;gap:8px;font-size:.9rem;color:var(--ink);margin:4px 0 2px}
.check input{width:auto}
.modelfields{display:none}
.modelfields.show{display:block}
.modelnote{background:#eef3f9;border:1px solid #d6e2f0;border-radius:10px;padding:12px 14px;font-size:.88rem;color:#33475b;margin:4px 0 0}
.row-actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
button.primary{background:var(--blue);border:0;color:#fff;padding:12px 22px;border-radius:9px;font-weight:700;font-size:1rem;cursor:pointer}
button.primary:hover{background:var(--blue-dark)}
button.ghost{background:#fff;border:1px solid var(--blue);color:var(--blue);padding:10px 16px;border-radius:9px;font-weight:600;cursor:pointer}
button.ghost:hover{background:#f0f5fb}
.result{display:none;margin-top:18px}
.result.show{display:block}
.verdict{display:flex;align-items:flex-start;gap:12px;border-radius:12px;padding:14px 16px;margin:0 0 14px;font-size:.96rem}
.verdict .badge{font-size:1.4rem;line-height:1.2}
.verdict.ok{background:var(--pos-bg);border:1px solid #bfe3c8}
.verdict.bad{background:var(--neg-bg);border:1px solid #f0c5be}
.verdict.info{background:#eef3f9;border:1px solid #d6e2f0}
.verdict b{display:block;margin-bottom:2px}
.lines{margin:0;padding:0;list-style:none}
.lines li{display:flex;justify-content:space-between;gap:12px;padding:9px 2px;border-bottom:1px solid var(--line);font-size:.95rem}
.lines li:last-child{border-bottom:0}
.lines .k{color:var(--muted)}
.lines .v{font-weight:700;text-align:right}
.lines .v.match{color:var(--pos)} .lines .v.mismatch{color:var(--neg)}
.calc-steps{background:#f6f8fb;border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:12px 0 0;font-size:.86rem;color:#3a4856}
.calc-steps div{padding:2px 0}
.warnbox{background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:10px;padding:10px 14px;margin:12px 0 0;font-size:.88rem;color:var(--warn)}
.warnbox.err{background:var(--neg-bg);border-color:#f0c5be;color:var(--neg)}
.warnbox ul{margin:6px 0 0;padding-left:18px}
textarea{width:100%;min-height:300px;padding:12px;border:1px solid var(--line);border-radius:9px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.86rem;line-height:1.5;background:#fff;color:var(--ink);white-space:pre}
.copied{color:var(--pos);font-size:.85rem;font-weight:600;margin-left:8px;opacity:0;transition:opacity .2s}
.copied.show{opacity:1}
/* Inhalt / Prosa */
.prose h2{font-size:1.3rem;margin:28px 0 8px}
.prose h3{font-size:1.05rem;margin:18px 0 6px}
.prose p{margin:0 0 12px}
.prose ul,.prose ol{margin:0 0 12px;padding-left:22px}
.prose li{margin:5px 0}
.prose table{width:100%;border-collapse:collapse;margin:10px 0 18px;font-size:.92rem}
.prose th,.prose td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.prose th{background:#eef3f9;font-weight:700}
.prose td.num,.prose th.num{text-align:right;white-space:nowrap}
.faq details{border:1px solid var(--line);border-radius:10px;padding:2px 14px;margin:10px 0;background:#fff}
.faq summary{cursor:pointer;font-weight:700;padding:12px 0;font-size:.98rem}
.faq details[open] summary{border-bottom:1px solid var(--line);margin-bottom:8px}
.faq p{margin:0 0 12px}
.note{font-size:.85rem;color:var(--muted)}
footer{border-top:1px solid var(--line);padding:22px 0 50px;color:var(--muted);font-size:.82rem}
footer a{color:var(--blue-dark)}
footer .links{margin-bottom:8px}
footer .links a{margin-right:16px;font-weight:600}
.disclaimer{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin:14px 0;font-size:.84rem;color:var(--muted)}
/* Ratgeber / Bundesland-Seiten */
.crumbs{font-size:.82rem;color:var(--muted);margin:18px 0 6px}
.crumbs a{color:var(--blue-dark);text-decoration:none}
.crumbs a:hover{text-decoration:underline}
.lead-prose{font-size:1.05rem;color:var(--ink);margin:0 0 14px}
.meta-line,.post-meta{font-size:.82rem;color:var(--muted)}
.answer-block{background:#eef3f9;border:1px solid #d6e2f0;border-left:4px solid var(--blue);border-radius:10px;padding:12px 16px;margin:14px 0;font-size:.96rem}
.cta-box{background:linear-gradient(135deg,#eef3f9,#dfeaf6);border:1px solid #cfe0f0;border-radius:12px;padding:16px 18px;margin:20px 0}
.cta-box b{font-size:1.05rem}
.cta-box p{margin:6px 0 12px;font-size:.92rem;color:#33475b}
.cta{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;font-weight:700;padding:11px 18px;border-radius:9px}
.cta:hover{background:var(--blue-dark)}
.article-disclaimer{margin-top:22px;padding-top:14px;border-top:1px solid var(--line)}
.related,.postlist{list-style:none;padding:0;margin:8px 0 0}
.related li{margin:6px 0}
.postlist .post{border-bottom:1px solid var(--line);padding:14px 0}
.postlist .post:last-child{border-bottom:0}
.postlist .post>a{font-weight:700;font-size:1.05rem;text-decoration:none;color:var(--blue-dark)}
.postlist .post>a:hover{text-decoration:underline}
.postlist .post-meta{display:block;margin:3px 0 4px}
.postlist .post p{margin:0;font-size:.92rem;color:#3a4856}
.prevnext{display:flex;justify-content:space-between;gap:12px;margin-top:22px;flex-wrap:wrap}
.prevnext .pn{flex:1;min-width:200px;border:1px solid var(--line);border-radius:10px;padding:10px 14px;text-decoration:none;color:var(--blue-dark);font-weight:600;font-size:.9rem}
.prevnext .pn.next{text-align:right}
.prevnext .pn:hover{background:#f0f5fb}
.land-grid{list-style:none;padding:0;margin:14px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.land-grid a{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:10px;padding:12px 14px;text-decoration:none;color:var(--ink)}
.land-grid a:hover{border-color:var(--blue);background:#f0f5fb}
.land-grid b{color:var(--blue-dark)}
.land-grid span{font-size:.8rem;color:var(--muted);margin-top:2px}
@media(max-width:560px){
  .grid2,.grid3{grid-template-columns:1fr}
  header h1{font-size:1.35rem}
  nav.main a{margin-left:12px}
  .lines li{font-size:.9rem}
  .land-grid{grid-template-columns:1fr}
}