:root{
  --bg:#dddddd; --fg:#000000; --muted:#999999; --accent:#000000; --card:#eeeeee; --ok:#22c55e; --warn:#f59e0b; --err:#ef4444;
  --shadow:0 10px 30px rgba(0,0,0,.75);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background: url('/akademie/images/elearning.jpg') no-repeat center center fixed; color:var(--fg);font:16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji'}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:24px}
.header{display:flex;gap:16px;align-items:center;justify-content:space-between;margin-bottom:16px}
.brand{font-weight:800;font-size:22px;letter-spacing:.4px}
.nav{display:flex;gap:12px;flex-wrap:wrap;}
.nav a{background:var(--card);padding:8px 12px;border-radius:12px;border:1px solid rgba(255,255,255,.06)}
.card{background:var(--card);;border:1px solid rgba(255,255,255,.02);border-radius:16px;box-shadow:var(--shadow);padding:20px;margin:16px 0}
.h1{font-size:28px;font-weight:800;margin:0 0 8px}
.h2{font-size:22px;font-weight:700;margin:24px 0 8px}
.p{margin:8px 0;color:var(--fg)}
.kbd{background:#0b1630;border:1px solid rgba(255,255,255,.08);padding:2px 6px;border-radius:6px;font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;color:var(--muted)}
.badge{display:inline-block;padding:4px 10px;border-radius:999px;background:#DDDDDD;border:1px solid rgba(255,255,255,.06);color:var(--muted);font-size:12px;margin-right:8px}
.btn{display:inline-block;background:var(--accent);color:#ffffff;padding:10px 16px;border-radius:12px;font-weight:700;border:0;cursor:pointer}
.btn.secondary{background:#1c2a45;color:var(--fg);border:1px solid rgba(255,255,255,.08)}
.row{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:900px){.row{grid-template-columns:1.2fr .8fr}}
ul,ol{margin:8px 0 8px 20px}
details{background:#0f1d38;border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:10px;margin:10px 0}
summary{cursor:pointer;font-weight:600}
.callout{padding:12px 14px;border-radius:12px;background:#EEEEEE;border-left:4px solid var(--accent);margin:12px 0}
.callout.warn{border-left-color:var(--warn)}
.callout.ok{border-left-color:var(--ok)}
.quiz .q{margin:12px 0;padding:12px;border:1px solid rgba(255,255,255,.08);border-radius:12px;background:#dddddd}
.quiz .q .title{font-weight:700;margin-bottom:8px}
.option{display:block;background:#eeeeee;border:1px solid rgba(255,255,255,.08);padding:8px;border-radius:10px;margin:6px 0;cursor:pointer}
.option input{margin-right:8px}
.score{font-weight:800}
hr{border:0;border-top:1px solid rgba(255,255,255,.08);margin:18px 0}
.footer{color:var(--muted);font-size:14px;margin-top:24px}
label{display:block;margin:8px 0 4px;color:var(--muted)}
input[type=text]{width:100%;padding:10px;border-radius:10px;border:1px solid rgba(255,255,255,.08);background:#0b1630;color:var(--fg)}
.print-only{display:none}
@media print{
  .no-print{display:none}
  .print-only{display:block}
  body{background:white;color:black}
  .card{box-shadow:none;border:0}
}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border:1px solid rgba(255,255,255,.12);padding:8px;text-align:left}
.small{font-size:14px;color:var(--muted)}