*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0a0b0f;--bg-secondary: #12141c;--bg-tertiary: #1a1d27;--bg-hover: #252a36;--bg-active: #2d3342;--border-color: #2a2d3a;--text-primary: #e8eaed;--text-secondary: #9aa0b0;--text-muted: #5a6070;--accent: #4fc3f7;--accent-dark: #2193b0;--gradient: linear-gradient(135deg, #4fc3f7, #2193b0);--shadow: 0 8px 32px rgba(0, 0, 0, .6);--radius: 12px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:var(--bg-primary);color:var(--text-primary);height:100vh;overflow:hidden}#app{display:flex;flex-direction:column;height:100vh}header{padding:14px 24px;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);flex-shrink:0}.header-content{display:flex;justify-content:space-between;align-items:center;max-width:1600px;margin:0 auto}.logo{display:flex;align-items:center;gap:10px}.logo-icon{font-size:28px}.logo-text{font-size:24px;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.5px}.header-stats{font-size:14px;color:var(--text-secondary);background:var(--bg-tertiary);padding:6px 14px;border-radius:20px;border:1px solid var(--border-color)}main{display:flex;flex:1;overflow:hidden}#sidebar{width:380px;min-width:300px;background:var(--bg-secondary);border-right:1px solid var(--border-color);display:flex;flex-direction:column;flex-shrink:0}.filters{padding:14px 16px;background:var(--bg-tertiary);border-bottom:1px solid var(--border-color);display:flex;gap:10px;flex-shrink:0}.search-wrapper{flex:1;position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:12px;width:18px;height:18px;color:var(--text-muted);pointer-events:none}.filters input,.filters select{padding:9px 12px;border-radius:8px;border:1px solid var(--border-color);background:var(--bg-primary);color:var(--text-primary);font-size:14px;outline:none;transition:all .2s}.filters input{padding-left:38px;flex:1;min-width:0}.filters input:focus,.filters select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #4fc3f71a}.filters select{min-width:130px;cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239aa0b0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}#channel-list{flex:1;overflow-y:auto;padding:4px 0}.channel-item{display:flex;align-items:center;padding:8px 16px;cursor:pointer;transition:all .15s;gap:14px;border-left:3px solid transparent;position:relative}.channel-item:hover{background:var(--bg-hover);border-left-color:var(--accent)}.channel-item.active{background:var(--bg-active);border-left-color:var(--accent)}.channel-item img{width:44px;height:44px;object-fit:contain;background:var(--bg-tertiary);border-radius:6px;flex-shrink:0;padding:4px}.channel-item .channel-info{flex:1;min-width:0}.channel-item .channel-name{font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.channel-item .channel-group{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.3px;margin-top:2px}.channel-item .channel-quality{font-size:10px;color:var(--accent);background:#4fc3f71a;padding:2px 8px;border-radius:10px;border:1px solid rgba(79,195,247,.2);flex-shrink:0}#player-section{flex:1;display:flex;align-items:center;justify-content:center;background:var(--bg-primary);padding:20px}#player-container{width:100%;max-width:1000px;background:#000;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);position:relative}#player-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#00000080;z-index:1;pointer-events:none;transition:opacity .3s}#player-overlay.hidden{opacity:0}#channel-name{font-size:24px;font-weight:700;color:#fff;text-align:center;text-shadow:0 2px 20px rgba(0,0,0,.8);padding:0 20px}#player-status{font-size:14px;color:#fff9;margin-top:10px;text-shadow:0 2px 10px rgba(0,0,0,.8)}#video-player{width:100%;aspect-ratio:16/9;background:#000;display:block}#player-controls{position:absolute;bottom:20px;right:20px;z-index:2;opacity:0;transition:opacity .3s}#player-container:hover #player-controls{opacity:1}#fullscreen-btn{background:#0009;border:1px solid rgba(255,255,255,.2);color:#fff;width:40px;height:40px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}#fullscreen-btn:hover{background:#fff3;transform:scale(1.05)}#fullscreen-btn svg{width:20px;height:20px}footer{padding:10px 24px;background:var(--bg-secondary);border-top:1px solid var(--border-color);font-size:12px;color:var(--text-muted);text-align:center;flex-shrink:0}footer a{color:var(--accent);text-decoration:none}footer a:hover{text-decoration:underline}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:2px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.loading{padding:60px 20px;text-align:center;color:var(--text-secondary)}.loading:after{content:"";display:inline-block;width:24px;height:24px;border:3px solid var(--border-color);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin-top:16px}@keyframes spin{to{transform:rotate(360deg)}}.error{padding:40px 20px;text-align:center;color:#ff6b6b}@media (max-width: 768px){main{flex-direction:column}#sidebar{width:100%;min-width:unset;height:40vh;border-right:none;border-bottom:1px solid var(--border-color)}#player-section{height:60vh;padding:10px}#video-player{aspect-ratio:16/9}.header-stats{display:none}.logo-text{font-size:20px}#channel-name{font-size:18px}}