*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;background:#0f0f0f;color:#eee;display:flex;justify-content:center;align-items:center;min-height:100vh}.app{width:90%;max-width:450px;display:flex;flex-direction:column;align-items:center}.player-container{width:100%;max-width:450px;padding:20px;text-align:center;background:#1a1a1a;border-radius:16px;box-shadow:0 10px 30px #00000080}.channels{position:sticky;top:0;z-index:100;margin-bottom:20px;width:100%;display:flex;gap:4px;justify-content:center;background:#0f0f0f}.channels button{flex:1;padding:10px 5px;background:#222;border:none;color:#eee;cursor:pointer;font-size:.9rem;border-radius:4px;transition:background .2s;display:flex;justify-content:center;align-items:center}.channels .active{background:#444}.cover{width:100%;aspect-ratio:1 / 1;object-fit:cover;border-radius:12px;margin-bottom:20px;box-shadow:0 4px 15px #0000004d}.title{font-size:1.25rem;margin:10px 0 5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.artist{font-size:1rem;color:#aaa;font-weight:400;margin-bottom:20px}.controls{display:flex;justify-content:center;align-items:center;gap:20px;margin-bottom:30px}.controls button{background:none;border:none;color:#fff;font-size:2rem;cursor:pointer;transition:transform .2s}.controls button:hover{transform:scale(1.1)}.play-btn{font-size:3rem!important}.history-section{text-align:left;border-top:1px solid #333;padding-top:20px}.history-section h4{font-size:.8rem;text-transform:uppercase;letter-spacing:1px;color:#666;margin-bottom:10px}.history-list{list-style:none;padding:0;margin:0}.history-item{display:flex;flex-direction:column;padding:8px 0;border-bottom:1px solid #222}.h-title{font-size:.9rem;font-weight:500;color:#ddd;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.h-artist{font-size:.75rem;color:#777}@media(max-width:480px){.player-container{width:100%;height:100vh;border-radius:0;display:flex;flex-direction:column;justify-content:center}.title{font-size:1.1rem}.controls button{font-size:1.5rem}.play-btn{font-size:2.5rem!important}}