:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--primary-color: #646cff;--bg-color: #242424;--panel-bg: #1a1a1a;--text-color: rgba(255, 255, 255, .87)}body{margin:0;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;background-color:var(--bg-color);color:var(--text-color);line-height:1.5;font-weight:400}.app-container{display:flex;flex-direction:column;height:100vh}.app-header{padding:1rem 2rem;background-color:var(--panel-bg);display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #333}.main-content{display:flex;flex:1;overflow:hidden}.left-panel{width:300px;background-color:var(--panel-bg);border-right:1px solid #333;padding:1rem;overflow-y:auto;display:flex;flex-direction:column;gap:1rem}.right-panel{flex:1;padding:2rem;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2rem}.logout-btn{background:transparent;border:1px solid #555;color:#fff;padding:.5rem 1rem;cursor:pointer;border-radius:4px}.logout-btn:hover{background:#333}.input-group{display:flex;gap:.5rem;margin-bottom:1rem}input[type=text],input[type=password]{padding:.5rem;border-radius:4px;border:1px solid #444;background:#2a2a2a;color:#fff;flex:1}button.primary-btn{background-color:var(--primary-color);color:#fff;border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;transition:background-color .2s}button.primary-btn:hover{background-color:#535bf2}.library-list{list-style:none;padding:0;margin:0}.library-item{padding:.5rem;cursor:pointer;border-bottom:1px solid #333;transition:background .2s}.library-item:hover{background:#2a2a2a}.library-item.active{background:#333;color:var(--primary-color)}.player-controls{display:flex;align-items:center;gap:1rem;margin-top:1rem}.seek-bar{width:100%;margin-top:1rem}.login-overlay{position:fixed;inset:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:1000}.login-box{background:var(--panel-bg);padding:2rem;border-radius:8px;width:300px;text-align:center}