:root{
  --brand:#ee0000;
  --ink:#0b0d12;
  --paper:#ffffff;
  --muted:#4b5563;
  --border:#e5e7eb;
  --w:74rem;
  --radius:12px;
}
@media (prefers-color-scheme: dark){
  :root{ --paper:#0b0d12; --ink:#e6e7ea; --border:#22252a; --muted:#a0a8b2; }
}
*{box-sizing:border-box}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{margin:0;font-family: system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial;line-height:1.6;color:var(--ink);background:var(--paper)}
a{color:var(--brand);text-decoration:none}
a:hover,a:focus{text-decoration:underline}
.container{max-width:var(--w);margin:0 auto;padding:0 1rem}

/* Header */
.header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--border);z-index:100}
@media (prefers-color-scheme: dark){ .header{background:#0f1116} }
.topbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem 0}
.brand{display:flex;align-items:center;gap:.75rem}
.brand img{height:48px;width:auto;border-radius:6px;background:#fff;box-shadow:0 0 0 2px #fff, 0 4px 20px rgba(0,0,0,.08)}
.brand-name{font-weight:800;letter-spacing:.2px}
nav[aria-label=Hauptnavigation]{display:flex;align-items:center;gap:.25rem .5rem;flex-wrap:wrap}
nav a{padding:.5rem .75rem;border-radius:8px;color:inherit}
nav a[aria-current=page]{background:rgba(238,0,0,.12)}
.navwrap{display:flex;align-items:center;gap:1rem}
.navwrap details{display:none}
@media (max-width: 900px){
  nav[aria-label=Hauptnavigation]{display:none}
  .navwrap details{display:block}
  .navwrap summary{list-style:none;cursor:pointer;border:1px solid var(--border);border-radius:10px;padding:.45rem .75rem}
  .navdrawer{position:absolute;left:0;right:0;top:60px;background:var(--paper);border-top:1px solid var(--border);box-shadow:0 12px 24px rgba(0,0,0,.08);padding:1rem}
  .navdrawer a{display:block;padding:.5rem;border-radius:8px}
  .navdrawer a[aria-current=page]{background:rgba(238,0,0,.12)}
}

/* HERO background uses FIRST image; faint visibility with overlay */
.hero{
  position:relative;min-height:56vh;display:flex;align-items:center;border-bottom:1px solid var(--border);color:#fff;overflow:hidden
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(to bottom, rgba(5,7,10,.80), rgba(5,7,10,.80)),
    url('hero.jpg'); /* fixed relative path */
  background-size: 100% 100%, contain;
  background-position: center, center; 
  background-repeat: no-repeat, no-repeat;
  /* background-size:cover;background-position:center; */

  /* filter:saturate(.9) contrast(.95) brightness(2.9);
  opacity:.8; /* faint/person subtle */


  filter:saturate(1.5) contrast(1) brightness(3);
  opacity:1.0; /* faint/person subtle */
  z-index:-1;
}
.hero .inner{width:100%}
.kicker{font-weight:800;color:#fff;text-transform:uppercase;letter-spacing:.08em;font-size:.95rem;margin-bottom:.25rem;opacity:.92}
.hero h1{font-size: clamp(2rem, 1.2rem + 2.2vw, 3rem); line-height:1.15;margin:.25rem 0 .5rem 0}
.hero p{color:#e8edf3;max-width:65ch;margin:0}
.ctas{display:flex;gap:.75rem;margin-top:1rem;flex-wrap:wrap}
.btn{display:inline-block;padding:.7rem 1rem;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff}
.btn.primary{background:var(--brand);border-color:transparent;color:#fff}

/* Content */
main .content{max-width:62rem;margin:0 auto;padding:1.25rem 0}
.grid{display:grid;gap:1rem;grid-template-columns:repeat(3,1fr)}
@media (max-width:1000px){ .grid{grid-template-columns:1fr 1fr} }
@media (max-width:640px){ .grid{grid-template-columns:1fr} }
.card{border:1px solid var(--border);border-radius:12px;padding:1rem;background:#fff}
@media (prefers-color-scheme: dark){ .card{background:#0f1116;border-color:#22252a} }
.card h3{margin:.25rem 0}

/* Profile layout boxes */
.section{margin:1.25rem 0}
.section h2{margin:.5rem 0 0.5rem}
.cards{display:grid;gap:1rem;grid-template-columns:repeat(3,1fr)}
@media (max-width:1000px){ .cards{grid-template-columns:1fr 1fr} }
@media (max-width:640px){ .cards{grid-template-columns:1fr} }
.box{border:1px solid var(--border);border-radius:12px;background:#fff;padding:1rem}
@media (prefers-color-scheme: dark){ .box{background:#0f1116;border-color:#22252a} }
.box h3{margin-top:.25rem}
.pub-card{display:flex;gap:1rem;align-items:flex-start}
.pub-card img{width:140px;height:auto;border-radius:8px;border:1px solid var(--border)}
.pub-card .meta{flex:1}

/* Legacy article wrapper for other pages */
article.legacy{border:1px solid var(--border);border-radius:12px;padding:1rem;background:#fff;color:#111}
@media (prefers-color-scheme: dark){ article.legacy{background:#0f1116;color:#e6e6e6;border-color:#22252a} }

/* Footer & a11y */
footer{border-top:1px solid var(--border);padding:1.25rem 0;margin-top:2rem;color:var(--muted);font-size:.95rem}
.skip a{position:absolute;left:-9999px;top:auto}
.skip a:focus{left:1rem;top:1rem;background:#fff;color:#000;padding:.5rem .75rem;border-radius:8px;outline:2px solid var(--brand);z-index:1000}

/* Print */
@media print{ nav,.navwrap,.header,.hero,footer{display:none} .container{max-width:none} }

/* === Workshops clickable cards === */
a.box.course{display:block; text-decoration:none; color:inherit; transition:transform .12s ease, box-shadow .12s ease; border:1px solid var(--border); border-radius:12px; background:#fff; padding:1rem}
@media (prefers-color-scheme: dark){ a.box.course{ background:#0f1116; border-color:#22252a } }
a.box.course:hover, a.box.course:focus{ transform:translateY(-2px); box-shadow:0 6px 20px rgba(0,0,0,.10); outline:none }
a.box.course h3{margin:.1rem 0 .5rem 0}
a.box.course .teaser{color:var(--muted); margin:0 0 .5rem 0}
a.box.course .more{font-weight:600}
a.box.course .more::after{content:" →";}
.cards.courses{grid-template-columns:repeat(2,1fr)}
@media (max-width:1000px){ .cards.courses{grid-template-columns:1fr} }