/* eiwa Fachwissen – Beitragsseite (beitrag-*.html) */

/* ---------- Kopf ---------- */
.bt-kopf{background:#fff;padding:56px 0 8px}
.bt-kopf h1{max-width:22ch;margin-bottom:.4em}
.bt-kopf .lead{margin-bottom:0}
.bt-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.bt-meta .tag{text-decoration:none}
.bt-meta .tag:hover{background:var(--green);color:var(--ink)}
.bt-meta-item{font-family:var(--font-head);font-size:12.5px;letter-spacing:1.6px;
  text-transform:uppercase;color:var(--grey)}

/* ---------- Titelbild ---------- */
.bt-hero{margin:26px 0 0;border-radius:12px 4px 12px 12px;overflow:hidden;
  border-left:2.4px solid var(--card-line);border-bottom:2.4px solid var(--card-line);
  box-shadow:0 0 10px rgba(0,0,0,.5)}
.bt-hero img{width:100%;max-height:560px;object-fit:cover}

/* ---------- Layout mit Inhaltsverzeichnis ---------- */
.bt-layout{display:grid;grid-template-columns:minmax(0,760px);justify-content:center}
.bt-layout--toc{grid-template-columns:minmax(0,760px) 280px;gap:56px;justify-content:center;
  align-items:start}
.bt-toc{position:sticky;top:24px;order:2;background:#fff;border:1px solid var(--line);
  border-left:2.4px solid var(--card-line);border-radius:4px;padding:22px 24px}
.bt-toc-titel{font-family:var(--font-head);font-size:11px;font-weight:600;letter-spacing:2.4px;
  text-transform:uppercase;color:var(--green-dark);margin:0 0 10px}
.bt-toc ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.bt-toc li{margin:0;border-bottom:1px solid #F0F2EF}
.bt-toc li:last-child{border-bottom:0}
.bt-toc a{display:flex;gap:10px;padding:9px 0;font-size:14px;line-height:1.45;color:var(--ink)}
.bt-toc a::before{counter-increment:toc;content:counter(toc,decimal-leading-zero);
  font-family:var(--font-head);font-size:12px;font-weight:600;color:var(--green-dark);flex:none;margin-top:2px}
.bt-toc a:hover{color:var(--green-dark)}

/* ---------- Artikel ---------- */
.bt-artikel{order:1;font-size:16.5px}
.bt-artikel > p{margin-bottom:1.25em}
.bt-artikel h2{font-size:clamp(1.4rem,2.6vw,1.85rem);margin:1.7em 0 .6em;scroll-margin-top:24px}
.bt-artikel h2::after{content:"";display:block;width:56px;height:2.4px;background:var(--green);
  margin-top:12px;border-radius:2px}
.bt-artikel h3{font-size:1.15rem;margin:1.5em 0 .5em}
.bt-artikel > *:first-child{margin-top:0}

.bt-liste{list-style:none;margin:0 0 1.4em;padding:0;display:grid;gap:11px}
.bt-liste li{position:relative;padding-left:30px;margin:0;line-height:1.6}
.bt-liste li::before{content:"";position:absolute;left:3px;top:7px;width:12px;height:7px;
  border-left:2.2px solid var(--green-dark);border-bottom:2.2px solid var(--green-dark);
  transform:rotate(-45deg)}

.bt-zitat{margin:1.8em 0;padding:6px 0 6px 26px;border-left:3px solid var(--green);
  font-family:var(--font-head)}
.bt-zitat p{font-size:1.2rem;font-weight:500;color:var(--ink);line-height:1.55;margin:0;font-style:normal}
.bt-zitat cite{display:block;margin-top:10px;font-size:13px;font-style:normal;
  letter-spacing:1.4px;text-transform:uppercase;color:var(--grey)}

.bt-merk{margin:1.8em 0}
.bt-merk h4{margin-bottom:.35em}
.bt-merk p{margin:0}

.bt-kontakt{margin:1.8em 0}

.bt-fig{margin:2em 0}
.bt-fig img{width:100%;border-radius:8px}
.bt-fig figcaption{font-size:13.5px;color:var(--grey);margin-top:10px;
  padding-left:14px;border-left:2.4px solid var(--card-line)}

.bt-galerie{margin:2em 0;grid-template-columns:repeat(3,1fr)}
@media (max-width:640px){.bt-galerie{grid-template-columns:repeat(2,1fr)}}

.bt-tab{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.bt-tab th{width:42%;text-align:left;font-family:var(--font-head);font-weight:600;color:var(--ink)}
.bt-tab th,.bt-tab td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.bt-tab tr:nth-child(odd){background:#FAFAF9}

.bt-links{display:grid;gap:0;margin:1.6em 0;border:1px solid var(--line);border-radius:4px;
  border-left:2.4px solid var(--card-line);overflow:hidden}
.bt-links a{display:flex;align-items:center;gap:12px;padding:13px 18px;color:var(--ink);
  font-family:var(--font-head);font-size:14.5px;font-weight:500;border-bottom:1px solid #F0F2EF;
  transition:.18s;background:#fff}
.bt-links a:last-child{border-bottom:0}
.bt-links a:hover{color:var(--green-dark);padding-left:23px;background:var(--mint)}
.bt-links .arr{width:16px;height:16px;flex:none;fill:none;stroke:var(--green);stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round}

.bt-video{display:flex;align-items:center;gap:16px;margin:14px 0;padding:16px 18px;
  background:#fff;border:1px solid var(--line);border-left:2.4px solid var(--card-line);
  border-radius:4px;color:var(--ink);transition:.18s}
.bt-video:hover{border-color:var(--green);transform:translateY(-2px);box-shadow:var(--shadow);color:var(--ink)}
.bt-video-icon{width:46px;height:46px;flex:none;border-radius:50%;background:var(--green);
  color:var(--ink);display:grid;place-items:center}
.bt-video-icon svg{width:22px;height:22px}
.bt-video-text b{display:block;font-family:var(--font-head);font-size:15.5px;line-height:1.4}
.bt-video-text small{color:var(--grey);font-size:13px}

.bt-quelle{margin-top:3em;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--grey)}

/* ---------- schmalere Bildschirme ---------- */
@media (max-width:1024px){
  .bt-layout--toc{grid-template-columns:1fr}
  .bt-toc{position:static;order:0;margin-bottom:8px}
}