:root{--gap: 24px;--card-bg: #ffffff;--muted: #6b7280;--muted-light: #9ca3af;--border: #e5e7eb;--primary: #0b5cff;--primary-dark: #0051d4;--primary-light: rgba(11, 92, 255, .08);--bg: #fafbfc;--text: #111827;--text-secondary: #6b7280;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 6px rgba(0, 0, 0, .08);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--radius: 12px;--transition: all .2s ease}*{box-sizing:border-box}body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Arial,Helvetica,sans-serif;margin:0;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.header{background:linear-gradient(135deg,#0b5cff,#0051d4);color:#fff;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;box-shadow:var(--shadow-sm)}.brand-link{display:flex;flex-direction:column;color:inherit;text-decoration:none}.brand h1{margin:0;font-size:20px;font-weight:600;letter-spacing:-.3px}.subtitle{font-size:13px;opacity:.9;margin-top:2px;font-weight:400}.nav-actions{display:flex;align-items:center;gap:12px}.nav-link{color:#fffffff2;text-decoration:none;padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;transition:var(--transition)}.nav-link:hover{background:#ffffff1a}.container{padding:32px 24px;max-width:1400px;margin:0 auto}.breadcrumbs{display:flex;align-items:center;gap:8px;margin-bottom:24px;font-size:14px}.breadcrumb-link{color:var(--muted);text-decoration:none;transition:var(--transition)}.breadcrumb-link:hover{color:var(--primary)}.separator{color:var(--muted-light);font-size:16px}.breadcrumb-current{color:var(--text);font-weight:500}.back-btn{display:inline-flex;align-items:center;gap:6px;color:var(--muted);text-decoration:none;font-size:14px;font-weight:500;padding:8px 0;margin-bottom:16px;transition:var(--transition)}.back-btn:hover{color:var(--primary)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--gap)}.card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column;border:1px solid var(--border);transition:var(--transition)}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.card-thumb-wrapper{width:100%;aspect-ratio:16 / 9;background:#f3f4f6;overflow:hidden}.card-thumb{width:100%;height:100%;object-fit:cover;display:block}.card-body{padding:24px;flex:1;display:flex;flex-direction:column}.card h3{margin:0 0 12px;font-size:18px;font-weight:600;color:var(--text);line-height:1.4}.card-description{color:var(--text-secondary);margin:0 0 16px;font-size:14px;line-height:1.6;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.card-meta{display:flex;align-items:center;gap:12px;margin-bottom:16px}.item-count{font-size:13px;color:var(--muted-light);font-weight:500}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;background:var(--primary);color:#fff;border-radius:8px;text-decoration:none;font-size:14px;font-weight:500;transition:var(--transition);border:none;cursor:pointer}.btn:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.items{margin-top:24px;display:flex;flex-direction:column;gap:16px}.collections-section,.videos-section{margin-bottom:32px}.collections-section .video-card,.videos-section .video-card{margin-bottom:0}.collection-card{border-left:4px solid var(--primary)}.video-item-card{border-left:4px solid #10b981}.video-item-card .video-player{aspect-ratio:16 / 9}.video-card{background:#fff;padding:24px;border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--border)}.video-card h4{margin:0 0 12px;font-size:16px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:8px}.badge{display:inline-block;padding:4px 10px;background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;border-radius:6px;text-transform:uppercase;letter-spacing:.3px}.video-meta{display:flex;align-items:center;gap:16px;margin-bottom:16px}.meta-item{font-size:13px;color:var(--muted);font-weight:500}.video-wrap{margin-top:16px;border-radius:8px;overflow:hidden;background:#000}.video-player{width:100%;display:block;aspect-ratio:16 / 9}.no-video{padding:48px 24px;background:#fef2f2;border-radius:8px;color:#dc2626;text-align:center;font-weight:500;border:1px solid #fecaca}.error-state{text-align:center;padding:64px 24px}.error-state h2{margin:0 0 12px;font-size:24px;color:var(--text)}.error-state p{margin:0 0 24px;color:var(--muted);font-size:16px}.error-text{color:#dc2626;font-size:14px;margin:0 0 16px}.empty-state{text-align:center;padding:48px 24px;color:var(--muted);font-size:15px}.skeleton{pointer-events:none}.skeleton-thumb{width:100%;aspect-ratio:16 / 9;background:linear-gradient(90deg,#f3f4f6 25%,#e5e7eb,#f3f4f6 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}.skeleton-text{height:16px;background:linear-gradient(90deg,#f3f4f6 25%,#e5e7eb,#f3f4f6 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:4px;margin-bottom:12px}.skeleton-text.short{width:60%}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.collection-description{color:var(--text-secondary);font-size:15px;line-height:1.7;margin-bottom:24px}h2{font-size:28px;font-weight:700;color:var(--text);margin:0 0 16px;letter-spacing:-.5px}h3{font-size:20px;font-weight:600;color:var(--text);margin:32px 0 16px;padding-bottom:12px;border-bottom:2px solid var(--border);display:flex;align-items:center;gap:12px}h4{font-size:16px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:8px;margin:0 0 12px}@media (max-width: 1024px){.container{padding:24px 20px}.grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}}@media (max-width: 768px){.header{padding:14px 20px;flex-direction:column;align-items:flex-start}.nav-actions{width:100%;justify-content:flex-end}.container{padding:20px 16px}.grid{grid-template-columns:1fr;gap:20px}h2{font-size:24px}.card-body,.video-card{padding:20px}}@media (max-width: 480px){.brand h1{font-size:18px}.subtitle{font-size:12px}.nav-link{padding:6px 12px;font-size:13px}h2{font-size:22px}.card-body,.video-card{padding:16px}.btn{width:100%}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.grid>*,.items>*{animation:fadeIn .3s ease forwards}.grid>*:nth-child(1){animation-delay:.05s}.grid>*:nth-child(2){animation-delay:.1s}.grid>*:nth-child(3){animation-delay:.15s}.grid>*:nth-child(4){animation-delay:.2s}.grid>*:nth-child(5){animation-delay:.25s}.grid>*:nth-child(6){animation-delay:.3s}