/* LBO Saar – Gestaltung nach dem Vorbild einer Bauzeichnung (Schriftfeld, Änderungsindex) */
:root{
  --paper:#f1f4f6; --sheet:#fff; --ink:#16202a; --muted:#566471; --line:#cbd4db; --tint:#e7edf2;
  --blue:#174a7c; --blue-ink:#0f3a64; --red:#b3261e; --focus:#d98a00;
  --serif:Charter,"Bitstream Charter","Sitka Text",Cambria,"Iowan Old Style","Palatino Linotype",Georgia,serif;
  --sans:"Avenir Next","Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  --top:3.5rem;
}
:root[data-theme=dark]{
  --paper:#0e151c; --sheet:#141e27; --ink:#e3e9ee; --muted:#93a2ae; --line:#2a3845; --tint:#1b2935;
  --blue:#82b6e8; --blue-ink:#a9cdf2; --red:#ff9188; --focus:#ffb938;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme=light]){
    --paper:#0e151c; --sheet:#141e27; --ink:#e3e9ee; --muted:#93a2ae; --line:#2a3845; --tint:#1b2935;
    --blue:#82b6e8; --blue-ink:#a9cdf2; --red:#ff9188; --focus:#ffb938;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:1rem;line-height:1.5;min-height:100vh;display:flex;flex-direction:column}
a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:.18em}
a:hover{color:var(--blue-ink)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:2px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--paper);padding:.6rem 1rem;z-index:100}
.skip:focus{left:0}
h1,h2,h3{font-family:var(--sans);line-height:1.2;margin:0}

/* ---------- Kopfleiste ---------- */
.topbar{position:sticky;top:0;z-index:50;background:var(--sheet);border-bottom:2px solid var(--ink);height:var(--top)}
.topbar-in{max-width:90rem;margin:0 auto;height:100%;display:flex;align-items:center;gap:1rem;padding:0 1rem}
.brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--ink);flex:none}
.brand-p{display:grid;place-items:center;width:2rem;height:2rem;border:2px solid var(--ink);font:700 1.15rem/1 var(--serif)}
.brand-t{font-weight:800;letter-spacing:.02em;font-size:1.1rem}
.brand-s{font-weight:400;margin-left:.3rem;color:var(--blue)}
.search{position:relative;flex:1;max-width:34rem;margin-left:auto}
.search input{width:100%;font:inherit;font-size:.95rem;padding:.5rem .8rem;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:2px}
.search input::placeholder{color:var(--muted)}
.treffer{position:absolute;left:0;right:0;top:calc(100% + 4px);background:var(--sheet);border:2px solid var(--ink);margin:0;padding:0;list-style:none;max-height:70vh;overflow:auto;box-shadow:0 12px 30px rgba(0,0,0,.18)}
.treffer li a{display:block;padding:.6rem .85rem;text-decoration:none;color:var(--ink);border-bottom:1px solid var(--line)}
.treffer li:last-child a{border-bottom:0}
.treffer li a:hover,.treffer li a.sel{background:var(--tint)}
.treffer b{color:var(--blue);margin-right:.4rem;font-variant-numeric:tabular-nums}
.treffer small{display:block;color:var(--muted);font-size:.82rem;margin-top:.15rem;line-height:1.35}
.treffer mark{background:#ffe08a;color:#000;padding:0 1px}
.treffer .none{padding:.8rem .85rem;color:var(--muted)}
.theme-btn,.menu-btn{font:inherit;border:1px solid var(--line);background:var(--sheet);color:var(--ink);cursor:pointer;border-radius:2px;height:2.2rem}
.theme-btn{width:2.2rem;display:grid;place-items:center;flex:none}
.theme-btn span{width:1rem;height:1rem;border-radius:50%;border:2px solid var(--ink);background:linear-gradient(90deg,var(--ink) 50%,transparent 50%)}
.menu-btn{display:none;padding:0 .7rem;font-size:.9rem;align-items:center;gap:.5rem}
.menu-ic{width:1rem;height:2px;background:var(--ink);box-shadow:0 -5px 0 var(--ink),0 5px 0 var(--ink)}

/* ---------- Dokumentlayout ---------- */
.shell{flex:1;display:grid;grid-template-columns:19rem minmax(0,1fr);max-width:90rem;width:100%;margin:0 auto}
.side{position:sticky;top:var(--top);height:calc(100vh - var(--top));overflow:auto;padding:1rem .75rem 3rem 1rem;border-right:1px solid var(--line);font-size:.9rem;scrollbar-width:thin}
.side-all{display:block;margin-bottom:.7rem;font-weight:600;text-decoration:none}
.side-teil{border-top:1px solid var(--line)}
.side-teil summary{cursor:pointer;padding:.55rem .2rem;list-style:none;display:flex;gap:.55rem;align-items:baseline}
.side-teil summary::-webkit-details-marker{display:none}
.side-teil summary::before{content:"";flex:none;width:.45rem;height:.45rem;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(-45deg);transition:transform .15s}
.side-teil[open] summary::before{transform:rotate(45deg) translate(-2px,-2px)}
.side-tn{font-weight:700;white-space:nowrap}
.side-tt{color:var(--muted);font-size:.84rem;line-height:1.3}
.side-ab{margin:.7rem 0 .2rem .9rem;font-size:.78rem;color:var(--muted);font-weight:600}
.side ul{list-style:none;margin:0 0 .4rem;padding:0}
.side li a{display:flex;gap:.5rem;padding:.28rem .4rem .28rem .9rem;text-decoration:none;color:var(--ink);border-left:3px solid transparent;line-height:1.3}
.side li a:hover{background:var(--tint)}
.side li a[aria-current=page]{border-left-color:var(--red);background:var(--tint);font-weight:600}
.side .sn{flex:none;width:3.1rem;color:var(--blue);font-variant-numeric:tabular-nums;font-weight:600}
.side li.aufg a{color:var(--muted)}

.doc{padding:1.6rem clamp(1rem,4vw,3.5rem) 4rem;min-width:0;outline:0}
.doc>*{max-width:44rem}
.crumbs{display:flex;gap:.5rem;align-items:center;font-size:.85rem;color:var(--muted);margin-bottom:1.1rem;flex-wrap:wrap}
.crumbs a{color:var(--muted)}
.crumbs span{opacity:.6}

/* ---------- Schriftfeld ---------- */
.titleblock{display:grid;grid-template-columns:auto 1fr;border:2px solid var(--ink);background:var(--sheet);margin-bottom:2rem}
.tb-num{display:flex;align-items:baseline;gap:.35rem;padding:.9rem 1.3rem;border-right:2px solid var(--ink);background:var(--tint);min-width:7rem;justify-content:center}
.tb-sym{font:400 1.6rem/1 var(--serif);color:var(--muted)}
.tb-n{font:800 clamp(2.6rem,6vw,3.8rem)/1 var(--sans);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.tb-n.sm{font-size:2rem}
.tb-main{min-width:0;display:flex;flex-direction:column}
.titleblock h1{font-size:clamp(1.35rem,2.8vw,1.85rem);padding:.85rem 1.1rem;border-bottom:1px solid var(--ink);font-weight:700;line-height:1.2}
.tb-grid{display:flex;flex-wrap:wrap;gap:1px;margin:0;font-size:.82rem;background:var(--line)}
.tb-grid>div{padding:.5rem 1.1rem .6rem;flex:1 1 auto;min-width:9rem;background:var(--sheet)}
.tb-grid dt{color:var(--muted);font-size:.74rem;margin-bottom:.1rem}
.tb-grid dd{margin:0;font-weight:600}
.tb-date dd{color:var(--red);font-variant-numeric:tabular-nums}

/* ---------- Gesetzestext ---------- */
.statute{font-family:var(--serif);font-size:1.14rem;line-height:1.68;hyphens:auto;-webkit-hyphens:auto;overflow-wrap:break-word}
.statute p{margin:0}
.abs{position:relative;padding-left:3.3rem;margin:0 0 1.05rem;scroll-margin-top:calc(var(--top) + 1rem)}
.abs:target{background:linear-gradient(90deg,rgba(217,138,0,.18),transparent 80%);outline:0;box-shadow:-.6rem 0 0 rgba(217,138,0,.18)}
.abs-nr{position:absolute;left:0;top:.18em;font:600 .92rem/1.7 var(--sans);color:var(--blue);text-decoration:none;font-variant-numeric:tabular-nums}
.abs-nr:hover{text-decoration:underline}
.satz{font:600 .62em/0 var(--sans);color:var(--red);margin:0 .22em 0 .12em;vertical-align:super;font-variant-numeric:tabular-nums}
.item{display:grid;grid-template-columns:2.3rem 1fr;margin:.5rem 0}
.item.l2{margin-left:2.3rem}
.item.l3{margin-left:4.6rem}
.lbl{font-family:var(--sans);font-size:.95rem;color:var(--muted);font-variant-numeric:tabular-nums;padding-top:.12em}
.cont{margin-top:.6rem!important}
.statute>.cont:first-child{margin-top:0!important}
.xref{text-decoration-style:dotted;text-decoration-thickness:1.5px;white-space:nowrap}
.xref:hover{text-decoration-style:solid}
.sup,.fn{font:.7em var(--sans);vertical-align:super;line-height:0}
.fn a{text-decoration:none;font-weight:700}
.aufg-note{font-family:var(--sans);color:var(--muted);padding:1rem 1.2rem;border:1px dashed var(--line)}
.fussnoten{margin-top:2.2rem;padding-top:1rem;border-top:1px solid var(--line);font-size:.9rem;color:var(--muted)}
.fussnoten h2{font-size:.9rem;margin-bottom:.5rem;color:var(--ink)}
.fn-list{list-style:none;margin:0;padding:0}
.fn-list li{margin:.35rem 0}.fn-list li:target{background:rgba(217,138,0,.18)}
.fn-nr{font-weight:700;color:var(--ink)}

.pager{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin-top:2.8rem}
.pg{display:flex;flex-direction:column;gap:.15rem;padding:.8rem 1rem;border:1px solid var(--line);background:var(--sheet);text-decoration:none;color:var(--ink);border-radius:2px;transition:border-color .15s}
.pg:hover{border-color:var(--ink)}
.pg.next{text-align:right;grid-column:2}
.pg-d{font-size:.78rem;color:var(--red);font-weight:600}
.pg-t{font-size:.92rem;line-height:1.3}
.pg-t b{color:var(--blue)}
.komm{margin-top:2.6rem;padding:1.1rem 1.3rem;border:1px dashed var(--line);color:var(--muted)}
.komm h2{font-size:1rem;color:var(--ink);margin-bottom:.3rem}
.komm p{margin:0;font-size:.92rem}

/* ---------- Inhaltsverzeichnis ---------- */
.wide{max-width:76rem;width:100%;margin:0 auto;padding:1.6rem 1rem 4rem;flex:1;outline:0}
.tb-wide{max-width:56rem}
.stand{max-width:44rem;color:var(--muted);font-size:.93rem;margin:-.8rem 0 1.6rem}
.filter{display:flex;align-items:center;gap:.8rem;flex-wrap:wrap;margin-bottom:1.6rem;padding:.8rem 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.filter label{font-weight:600;font-size:.9rem}
.filter input{flex:1 1 16rem;max-width:26rem;font:inherit;padding:.5rem .8rem;border:1px solid var(--line);background:var(--sheet);color:var(--ink);border-radius:2px}
.filter-n{font-size:.85rem;color:var(--muted)}
.toc{columns:2;column-gap:3rem}
.toc-teil{break-inside:avoid-column;margin-bottom:2rem}
.toc-teil h2{display:flex;flex-direction:column;border-bottom:2px solid var(--ink);padding-bottom:.35rem;margin-bottom:.4rem;font-size:1.15rem}
.tt-n{font-size:.78rem;color:var(--red);font-weight:700}
.toc-teil h3{font-size:.84rem;color:var(--muted);margin:1rem 0 .15rem;font-weight:600}
.toc-list{list-style:none;margin:0;padding:0}
.toc-list li{display:flex;align-items:baseline;gap:.6rem;border-bottom:1px solid var(--line)}
.toc-list li a{flex:1;display:flex;gap:.7rem;padding:.42rem .2rem;text-decoration:none;color:var(--ink);line-height:1.3}
.toc-list li a:hover{background:var(--tint)}
.toc-list .sn{flex:none;width:3.3rem;color:var(--blue);font-weight:700;font-variant-numeric:tabular-nums}
.toc-list time{flex:none;font-size:.75rem;color:var(--muted);font-variant-numeric:tabular-nums}
.toc-list li.aufg a{color:var(--muted)}
.toc-empty{color:var(--muted)}
[hidden]{display:none!important}

/* ---------- Startseite ---------- */
.home{max-width:76rem;width:100%;margin:0 auto;padding:1.4rem 1rem 4rem;flex:1;outline:0}
.hero{margin-bottom:3rem}
.sheet{border:2px solid var(--ink);background:var(--sheet);display:grid;grid-template-columns:minmax(0,1fr) 15rem;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:2rem 2rem;background-position:-1px -1px}
:root[data-theme=dark] .sheet,:root:not([data-theme=light]) .sheet{background-blend-mode:normal}
.sheet-main{padding:clamp(1.4rem,4vw,3.2rem);background:linear-gradient(90deg,var(--sheet) 70%,transparent)}
.kicker{margin:0 0 .9rem;color:var(--red);font-weight:700;font-size:.9rem}
.sheet h1{font-size:clamp(2rem,5.2vw,3.5rem);line-height:1.06;letter-spacing:-.02em;font-weight:800;max-width:15em}
.lead{font-family:var(--serif);font-size:1.18rem;line-height:1.6;max-width:34rem;margin:1.2rem 0 1.6rem}
.cta{display:flex;gap:.7rem;flex-wrap:wrap;margin:0}
.btn{display:inline-block;padding:.7rem 1.1rem;background:var(--ink);color:var(--paper);text-decoration:none;font-weight:600;border:2px solid var(--ink);border-radius:2px;transition:background .15s,color .15s}
.btn:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.ghost{background:var(--sheet);color:var(--ink)}
.btn.ghost:hover{background:var(--tint);color:var(--ink);border-color:var(--ink)}
.sheet-tb{margin:0;display:flex;flex-direction:column;border-left:2px solid var(--ink);background:var(--sheet);justify-content:flex-end}
.sheet-tb>div{padding:.75rem 1rem;border-top:1px solid var(--ink)}
.sheet-tb>div:first-child{border-top:0}
.sheet-tb dt{font-size:.72rem;color:var(--muted)}
.sheet-tb dd{margin:0;font-weight:700;font-variant-numeric:tabular-nums}
.sheet-tb .red dd{color:var(--red)}
.rev,.teile{margin-bottom:3rem}
.rev h2,.teile h2{font-size:1.4rem;margin-bottom:.4rem}
.rev-lead{margin:0 0 1.2rem;color:var(--muted);max-width:40rem}
.rev-list{list-style:none;margin:0;padding:0;border:2px solid var(--ink);background:var(--sheet)}
.rev-list li{border-top:1px solid var(--line)}
.rev-list li:first-child{border-top:0}
.rev-list a,.rev-list li.soon{display:grid;grid-template-columns:5.5rem 1fr auto;gap:1rem;align-items:baseline;padding:.9rem 1.1rem;text-decoration:none;color:var(--ink)}
.rv-y{font:800 1.5rem/1 var(--sans);font-variant-numeric:tabular-nums}
.rv-s{font-size:.82rem;color:var(--muted);text-align:right}
.rev-list li.now{background:var(--tint)}
.rev-list li.now .rv-s{color:var(--red);font-weight:700}
.rev-list li.now a:hover .rv-t{text-decoration:underline}
.rev-list li.soon{color:var(--muted)}
.rev-list li.soon .rv-y{font-weight:500}
.teile-list{list-style:none;margin:1rem 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(19rem,1fr));gap:0;border-top:2px solid var(--ink)}
.teile-list a{display:grid;grid-template-columns:1fr auto;gap:.1rem .8rem;padding:.9rem .3rem;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);height:100%}
.teile-list a:hover{background:var(--tint)}
.tl-n{grid-column:1/-1;font-size:.78rem;font-weight:700;color:var(--red)}
.tl-t{font-weight:600;line-height:1.3}
.tl-r{color:var(--muted);font-size:.85rem;font-variant-numeric:tabular-nums;white-space:nowrap}

/* ---------- Textseiten ---------- */
.prose{max-width:44rem;width:100%;margin:0 auto;padding:2rem 1rem 4rem;flex:1;outline:0}
.prose h1{font-size:2rem;margin-bottom:1.2rem}
.prose h2{font-size:1.1rem;margin:1.6rem 0 .3rem}
.prose p{font-family:var(--serif);line-height:1.65}
.todo{border:2px solid var(--red);padding:.8rem 1rem;background:var(--sheet)}

/* ---------- Fuß ---------- */
.foot{border-top:2px solid var(--ink);background:var(--sheet);margin-top:auto}
.foot-in{max-width:90rem;margin:0 auto;padding:1.2rem 1rem;display:flex;gap:1.5rem;justify-content:space-between;flex-wrap:wrap;font-size:.86rem;color:var(--muted)}
.foot-note{margin:0;max-width:40rem}
.foot-links{margin:0;display:flex;gap:1.1rem;flex-wrap:wrap}
.foot-links a{color:var(--ink)}

/* ---------- Responsive ---------- */
@media (max-width:62rem){
  .shell{display:block}
  .menu-btn{display:inline-flex}
  .side{position:fixed;z-index:60;top:var(--top);left:0;bottom:0;width:min(21rem,88vw);height:auto;background:var(--sheet);transform:translateX(-102%);transition:transform .2s;border-right:2px solid var(--ink);padding-bottom:5rem}
  body.menu-open .side{transform:none}
  body.menu-open::after{content:"";position:fixed;inset:var(--top) 0 0 0;background:rgba(0,0,0,.4);z-index:55}
  .toc{columns:1}
  .sheet{grid-template-columns:1fr}
  .sheet-tb{flex-direction:row;flex-wrap:wrap;border-left:0;border-top:2px solid var(--ink)}
  .sheet-tb>div{flex:1 1 8rem;border-top:0;border-left:1px solid var(--ink)}
  .sheet-tb>div:first-child{border-left:0}
  .sheet-main{background:var(--sheet)}
}
@media (max-width:40rem){
  .brand-t{display:none}
  .titleblock{grid-template-columns:1fr}
  .tb-num{border-right:0;border-bottom:2px solid var(--ink);justify-content:flex-start;padding:.6rem 1rem}
  .statute{font-size:1.06rem}
  .abs{padding-left:0}
  .abs-nr{position:static;display:block;margin-bottom:-.1rem}
  .rev-list a,.rev-list li.soon{grid-template-columns:4rem 1fr}
  .rv-s{grid-column:2;text-align:left}
  .pager{grid-template-columns:1fr}
  .pg.next{grid-column:1;text-align:left}
}
@media print{
  .topbar,.side,.pager,.komm,.foot,.skip{display:none!important}
  .shell{display:block}
  body{background:#fff;color:#000}
  .doc{padding:0}.doc>*{max-width:none}
  .titleblock{border-color:#000}
  .xref{color:#000;text-decoration:none}
}
.prose ul{font-family:var(--serif);line-height:1.65;padding-left:1.3rem}
.prose p{margin:.5rem 0 .9rem}