:root{--bg:#f8fafc;--surface:#fff;--dark:#111536;--text:#0f172a;--muted:#64748b;--border:#e2e8f0;--primary:#4f46e5;--primary-hover:#4338ca;--primary-soft:#eef2ff;--danger:#dc2626;--radius:14px;--shadow:0 10px 30px #0f172a14}*,:after,:before{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0;font-family:Segoe UI,system-ui,-apple-system,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6}h1,h2,h3{letter-spacing:-.02em;margin:0 0 .5em;font-weight:800;line-height:1.2}img{max-width:100%}#kaufen,#kurs{scroll-margin-top:84px}.container{width:100%;max-width:1080px;margin:0 auto;padding:0 20px}.site{flex-direction:column;min-height:100vh;display:flex}.site-main{flex:1}.site-header{z-index:50;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid 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14px;font-size:.9rem;line-height:1.5}.notice-ok{color:#166534;background:#f0fdf4;border:1px solid #bbf7d0}.notice-warn{color:#92400e;background:#fffbeb;border:1px solid #fde68a}.notice-info{color:#1e40af;background:#eff6ff;border:1px solid #bfdbfe}@media (width<=960px){.product-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=640px){.product-grid{grid-template-columns:1fr}}.video-page{max-width:900px;margin:0 auto;padding:50px 20px 90px}.video-page video{aspect-ratio:16/9;border-radius:var(--radius);width:100%;box-shadow:var(--shadow);background:#000;display:block}.video-page h1{margin:18px 0 4px;font-size:1.35rem}.video-meta{color:var(--muted);margin:0;font-size:.9rem}.progress{background:#e2e8f0;border-radius:999px;height:10px;overflow:hidden}.progress-bar{background:var(--primary);height:100%;transition:width .2s}code{background:#f1f5f9;border-radius:6px;padding:1px 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.op-progressbar-container{display:none!important}.live-badge{color:#fff;letter-spacing:.08em;white-space:nowrap;background:#dc2626;border-radius:999px;padding:3px 12px;font-size:.75rem;font-weight:800;animation:1.4s ease-in-out infinite livepulse;display:inline-block}@keyframes livepulse{50%{opacity:.45}}.live-preview-wrap{position:relative}.live-preview-wrap video{aspect-ratio:16/9;background:#000;border-radius:10px;width:100%;display:block}.live-preview-wrap .live-badge{position:absolute;top:12px;left:12px}.media-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.media-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);color:var(--text);flex-direction:column;text-decoration:none;transition:transform .15s;display:flex;overflow:hidden}.media-card:hover{transform:translateY(-3px)}.media-thumb{aspect-ratio:16/9;background:linear-gradient(135deg,#eef2ff,#e0e7ff);justify-content:center;align-items:center;font-size:3rem;display:flex;overflow:hidden}.media-thumb img{-o-object-fit:cover;object-fit:cover;width:100%;height:100%;display:block}.media-body{flex-direction:column;gap:4px;padding:16px 18px 18px;display:flex}.media-body h3{margin:0;font-size:1rem}.media-body p{color:var(--muted);margin:0;font-size:.85rem}.media-play{color:var(--primary);margin-top:6px;font-size:.9rem;font-weight:700}@media (width<=960px){.media-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=640px){.media-grid{grid-template-columns:1fr}}