body{color:#fff;background:#121212;margin:0;font-family:Arial,sans-serif}.app{height:100vh;min-height:100vh;display:flex}@media (width<=900px){.app{flex-direction:column}.sidebar{box-sizing:border-box;width:100%}.main{width:100%;padding:10px}.player{width:100%;padding:12px;position:relative;bottom:auto}}.sidebar{background:#000;width:100%;padding:20px}.sidebar h2{color:#1db954}.main{flex:1;padding:20px;overflow-y:auto}.track{cursor:pointer;border-radius:5px;padding:10px}.track:hover{background:#282828}.track.active{color:#000;background:#1db954}.player{background:#181818;justify-content:space-between;align-items:center;width:100%;padding:15px;display:flex;position:fixed;bottom:0}button{cursor:pointer;background:#1db954;border:none;border-radius:20px;margin-right:5px;padding:8px 12px}button:hover{background:#1ed760}input[type=range]{width:100px}