:root{--bg: #0f172a;--fg: #f8fafc;--header-bg: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);--accent: #3b82f6;--accent-light: #60a5fa;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-tertiary: #94a3b8;--card-bg: rgba(30, 41, 59, .7);--card-bg-hover: rgba(30, 41, 59, .9);--error: #ef4444;--offline: #94a3b8;--transition-fast: .2s ease-out;--transition-smooth: .4s cubic-bezier(.25, .8, .25, 1)}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;background:var(--bg);color:var(--fg);overflow:hidden;font-family:Inter,Segoe UI,Roboto,sans-serif}.app-container{display:flex;flex-direction:column;height:100vh;background:var(--bg)}.app-header{padding:1.2rem 2rem;background:var(--header-bg);box-shadow:0 4px 12px #00000026;z-index:10}.header-content{max-width:1400px;margin:0 auto}.logo-container{display:flex;align-items:center;gap:12px;margin-bottom:4px}.live-indicator{width:12px;height:12px;background:var(--accent);border-radius:50%;box-shadow:0 0 8px 2px var(--accent-light);animation:pulse 1.5s infinite}@keyframes pulse{0%{opacity:1}50%{opacity:.6}to{opacity:1}}.app-header h1{font-size:1.8rem;font-weight:700;letter-spacing:-.5px;background:linear-gradient(to right,var(--accent-light),var(--text-primary));-webkit-background-clip:text;background-clip:text;color:transparent}.header-subtitle{font-size:.95rem;color:var(--text-tertiary);font-weight:400}.main-content{flex:1;display:flex;overflow:hidden;padding:1rem}.live-feed-container{display:flex;flex-direction:column;width:100%;max-width:1400px;margin:0 auto;padding:0 1rem}.feed-header{margin-bottom:1.5rem;padding:0 .5rem}.feed-header h2{font-size:1.5rem;font-weight:600;margin-bottom:4px;color:var(--text-primary)}.feed-header p{font-size:1rem;color:var(--text-tertiary)}.cards-container{display:flex;gap:1.8rem;padding:1rem;overflow-x:auto;transition:all var(--transition-smooth)}.cards-container::-webkit-scrollbar{display:none}.live-item{flex:0 0 320px;background:var(--card-bg);border-radius:12px;overflow:hidden;transition:all var(--transition-smooth);box-shadow:0 6px 16px #0003;cursor:pointer;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.05);transform-origin:center}.live-item:hover{background:var(--card-bg-hover);transform:translateY(-4px)}.live-item:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #3b82f680,0 8px 24px #0006}.thumbnail-container{position:relative;width:100%;height:180px;overflow:hidden}.thumbnail-container img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}.live-item:hover .thumbnail-container img{transform:scale(1.05)}.live-badge{position:absolute;top:12px;left:12px;background:var(--error);color:#fff;font-size:.75rem;font-weight:700;padding:4px 10px;border-radius:4px;display:flex;align-items:center;gap:4px;z-index:2}.live-pulse{width:8px;height:8px;background:#fff;border-radius:50%;animation:pulse 1.5s infinite}.channel-tag{position:absolute;bottom:12px;left:12px;background:#000000b3;color:#fff;font-size:.8rem;padding:4px 10px;border-radius:4px;font-weight:500;z-index:2}.card-content{padding:1rem}.video-title{font-size:1.05rem;font-weight:600;color:var(--text-primary);margin-bottom:8px;display:-webkit-box;line-clamp:2;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}.meta-info{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--text-secondary)}.channel-name{font-weight:500}.viewers{font-size:.8rem;color:var(--accent-light)}.placeholder{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;text-align:center;color:var(--text-secondary);gap:12px}.placeholder.error{color:var(--error)}.placeholder.offline{color:var(--offline)}.placeholder .material-icons{font-size:3rem;margin-bottom:8px}.loading-container{min-height:235px;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px}.loading-spinner{width:48px;height:48px;border:4px solid rgba(59,130,246,.2);border-top:4px solid var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.player-container{flex:1;display:flex;background:#000;position:relative;border-radius:8px;overflow:hidden;max-width:1400px;width:100%;margin:0 auto}.player-container iframe{width:100%;height:100%;border:none}.back-button{position:absolute;top:20px;left:20px;z-index:10;background:#1e293bcc;color:var(--text-primary);border:none;padding:10px 18px;border-radius:30px;display:flex;align-items:center;gap:6px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1)}.back-button:hover{background:#1e293bf2;transform:translateY(-2px)}.app-footer{padding:1rem 2rem;text-align:center;font-size:.8rem;color:var(--text-tertiary);border-top:1px solid rgba(255,255,255,.05)}@media (max-width: 768px){.cards-container{gap:1rem}.live-item{flex:0 0 280px}.app-header{padding:1rem}}