:root{--bg:#0b0f14;--panel:#121824;--panel2:#0f1520;--text:#e6edf3;--muted:#94a3b8;--accent:#60a5fa;--border:#223045}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,"Noto Sans",sans-serif}
.topbar{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,var(--panel),var(--panel2))}
.brand{font-weight:700;letter-spacing:.2px}
.actions{display:flex;gap:10px;align-items:center}
#search{width:min(360px,52vw);padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#0c1220;color:var(--text);outline:none}
#search:focus{border-color:var(--accent)}
#reload{padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#0c1220;color:var(--text);cursor:pointer}
#reload:hover{border-color:var(--accent)}

.layout{display:grid;grid-template-columns:360px 1fr;min-height:calc(100vh - 58px)}
.sidebar{border-right:1px solid var(--border);background:var(--panel2)}
.sidebar-title{display:flex;align-items:baseline;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--border)}
.meta{color:var(--muted);font-size:12px}
.channel-list{list-style:none;margin:0;padding:8px;overflow:auto;height:calc(100vh - 58px - 49px)}
.channel{display:flex;gap:10px;align-items:center;padding:10px;border-radius:12px;border:1px solid transparent;cursor:pointer}
.channel:hover{background:#0c1220;border-color:var(--border)}
.channel.active{background:#0c1220;border-color:var(--accent)}
.logo{width:28px;height:28px;border-radius:8px;flex:0 0 auto;background:#0c1220;border:1px solid var(--border);object-fit:cover}
.chan-text{min-width:0}
.chan-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chan-group{color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.player{padding:14px}
.nowplaying{display:flex;flex-direction:column;gap:4px;margin-bottom:10px}
.np-title{font-weight:700;font-size:18px}
.np-sub{color:var(--muted);font-size:12px}
.video{width:100%;max-height:70vh;background:black;border-radius:14px;border:1px solid var(--border)}
.hint{margin-top:10px;color:var(--muted);font-size:12px}
.hint ul{margin:6px 0 0 18px;padding:0}
kbd{border:1px solid var(--border);background:#0c1220;border-bottom-width:2px;border-radius:6px;padding:1px 6px;color:var(--text)}

@media (max-width: 960px){
  .layout{grid-template-columns:1fr}
  .sidebar{border-right:none;border-bottom:1px solid var(--border)}
  .channel-list{height:auto;max-height:40vh}
}