*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #6366f1;--secondary-color: #8b5cf6;--accent-color: #ec4899;--background-gradient: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);--card-background: rgba(255, 255, 255, .95);--text-primary: #1f2937;--text-secondary: #6b7280;--border-radius: 16px;--box-shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--transition: all .3s ease}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--background-gradient);color:var(--text-primary);min-height:100vh}#root{min-height:100vh}.app-container{min-height:100vh;display:flex;flex-direction:column}.navbar{background:var(--card-background);box-shadow:var(--box-shadow);padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:100}.logo{font-size:1.5rem;font-weight:700;color:var(--primary-color);text-decoration:none}.nav-links{display:flex;gap:2rem;list-style:none}.nav-links a{text-decoration:none;color:var(--text-secondary);font-weight:500;transition:var(--transition)}.nav-links a:hover{color:var(--primary-color)}.auth-buttons{display:flex;gap:1rem}.btn{padding:.75rem 1.5rem;border:none;border-radius:var(--border-radius);font-weight:500;cursor:pointer;transition:var(--transition);text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 15px -3px #6366f14d}.btn-secondary{background:transparent;color:var(--text-primary);border:2px solid var(--text-secondary)}.btn-secondary:hover{border-color:var(--primary-color);color:var(--primary-color)}.main-content{flex:1;padding:2rem;max-width:1200px;margin:0 auto;width:100%}.page-title{font-size:2rem;font-weight:700;margin-bottom:2rem;color:var(--text-primary)}.card{background:var(--card-background);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:2rem;margin-bottom:2rem;transition:var(--transition)}.card:hover{transform:translateY(-4px);box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.playlist-card{cursor:pointer;overflow:hidden;position:relative}.playlist-card img{width:100%;height:200px;object-fit:cover;border-radius:var(--border-radius);margin-bottom:1rem;transition:var(--transition)}.playlist-card:hover img{transform:scale(1.05)}.playlist-info h3{font-size:1.25rem;font-weight:600;margin-bottom:.5rem}.playlist-info p{color:var(--text-secondary);font-size:.875rem}.playlists-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:2rem}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text-primary)}.form-group input,.form-group textarea{width:100%;padding:.75rem;border:2px solid #e5e7eb;border-radius:var(--border-radius);font-size:1rem;transition:var(--transition)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f11a}.song-list{list-style:none}.song-item{display:flex;align-items:center;padding:1rem;border-bottom:1px solid #e5e7eb;transition:var(--transition)}.song-item:hover{background:#6366f10d}.song-item:last-child{border-bottom:none}.song-info{flex:1}.song-info h4{font-size:1rem;font-weight:600;margin-bottom:.25rem}.song-info p{color:var(--text-secondary);font-size:.875rem}.song-actions{display:flex;gap:1rem}.player{background:var(--card-background);padding:1rem 2rem;box-shadow:0 -4px 6px -1px #0000001a;position:sticky;bottom:0;display:flex;align-items:center;justify-content:space-between;gap:2rem}.now-playing{display:flex;align-items:center;gap:1rem;flex:1}.now-playing img{width:60px;height:60px;border-radius:8px;object-fit:cover}.now-playing-info h4{font-size:1rem;font-weight:600;margin-bottom:.25rem}.now-playing-info p{color:var(--text-secondary);font-size:.875rem}.playback-controls{display:flex;align-items:center;gap:2rem}.play-btn{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.5rem;transition:var(--transition)}.play-btn:hover{transform:scale(1.1);box-shadow:0 10px 15px -3px #6366f14d}.search-bar{display:flex;gap:1rem;margin-bottom:2rem}.search-bar input{flex:1;padding:.75rem 1.5rem;border:2px solid #e5e7eb;border-radius:var(--border-radius);font-size:1rem;transition:var(--transition)}.search-bar input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f11a}.song-detail-page{min-height:100vh;display:flex;flex-direction:column;background:var(--background-gradient)}.song-detail-header{padding:1rem 2rem;background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.back-btn{background:transparent;border:none;font-size:1.5rem;color:var(--text-primary);cursor:pointer;padding:.5rem;border-radius:50%;transition:var(--transition)}.back-btn:hover{background:#ffffff80}.song-detail-content{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;text-align:center}.album-cover-container{margin-bottom:3rem}.album-cover{width:300px;height:300px;border-radius:50%;overflow:hidden;box-shadow:0 20px 40px #0003;animation:rotate 20s linear infinite}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.album-cover img{width:100%;height:100%;object-fit:cover}.song-info{margin-bottom:3rem}.song-info h1{font-size:2.5rem;font-weight:700;margin-bottom:1rem;color:var(--text-primary)}.song-info p{font-size:1.25rem;color:var(--text-secondary);font-weight:500}.lyrics-container{max-width:800px;width:100%;margin-bottom:3rem;height:200px;overflow:hidden}.lyrics-scroll{height:100%;display:flex;flex-direction:column;justify-content:center;transition:transform .3s ease}.lyric-line{font-size:1.1rem;line-height:2;color:var(--text-secondary);transition:var(--transition)}.lyric-line.active{font-size:1.3rem;color:var(--primary-color);font-weight:600}.playback-controls{display:flex;align-items:center;gap:2rem;margin-bottom:2rem}.control-btn{background:transparent;border:none;font-size:2rem;color:var(--text-primary);cursor:pointer;transition:var(--transition)}.control-btn:hover{color:var(--primary-color);transform:scale(1.2)}.play-btn-large{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:2rem;transition:var(--transition);box-shadow:0 10px 20px #6366f14d}.play-btn-large:hover{transform:scale(1.1);box-shadow:0 15px 30px #6366f166}.player-actions{display:flex;gap:2rem}.action-btn{background:transparent;border:none;font-size:1.5rem;color:var(--text-secondary);cursor:pointer;transition:var(--transition)}.action-btn:hover{color:var(--primary-color);transform:scale(1.2)}.hot-songs-section{margin-bottom:3rem}.songs-list{list-style:none;background:var(--card-background);border-radius:var(--border-radius);box-shadow:var(--box-shadow);overflow:hidden}.songs-list .song-item{display:flex;align-items:center;padding:1.5rem 2rem;border-bottom:1px solid #e5e7eb;transition:var(--transition);cursor:pointer}.songs-list .song-item:hover{background:#6366f10d;transform:translate(4px)}.songs-list .song-item:last-child{border-bottom:none}.song-rank{font-size:1.25rem;font-weight:600;color:var(--text-secondary);width:40px;text-align:center;margin-right:2rem}.songs-list .song-info{flex:1;margin-bottom:0}.songs-list .song-info h3{font-size:1.1rem;font-weight:600;margin-bottom:.25rem;color:var(--text-primary)}.songs-list .song-info p{color:var(--text-secondary);font-size:.9rem}.song-duration{color:var(--text-secondary);font-size:.9rem;font-weight:500}@media (max-width: 768px){.navbar{flex-direction:column;gap:1rem}.nav-links{gap:1rem}.main-content{padding:1rem}.playlists-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem}.player{flex-direction:column;gap:1rem;text-align:center}.playback-controls{gap:1rem}.album-cover{width:250px;height:250px}.song-info h1{font-size:2rem}.song-info p,.lyric-line{font-size:1rem}.lyric-line.active{font-size:1.2rem}.playback-controls{gap:1.5rem}.play-btn-large{width:70px;height:70px;font-size:1.5rem}}