.music-player { position: fixed; bottom: 20px; right: 20px; width: 280px; background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(15px); border: 1px solid rgba(255, 255, 255, 0.2); border-radius: 20px; padding: 15px; display: flex; align-items: center; transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1); z-index: 50; }
.music-player.collapsed { transform: translateX(240px); }
.player-toggle { cursor: pointer; width: 40px; text-align: center; font-size: 24px; color: #fff; }
.player-body { display: flex; align-items: center; width: 100%; overflow: hidden; }
#track-cover { width: 50px; height: 50px; border-radius: 8px; margin-right: 12px; }
.track-info { display: flex; flex-direction: column; color: #fff; }
#track-name { font-weight: bold; font-size: 14px; white-space: nowrap; }
#track-artist { font-size: 11px; opacity: 0.7; }