:root{--primary:#9b51e0;--secondary:#4a90e2;--dark-bg:#0f111a;--glass-bg:#ffffff0d;--glass-border:#ffffff1a;--text-primary:#fff;--text-secondary:#a0aabf}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--dark-bg);color:var(--text-primary);min-height:100vh;font-family:Inter,Roboto,sans-serif;overflow-x:hidden}.app-container{flex-direction:column;min-height:100vh;display:flex;position:relative}.background-gradient{z-index:-1;pointer-events:none;background:radial-gradient(circle,#9b51e026,#0000 40%),radial-gradient(circle at 80% 20%,#4a90e226,#0000 30%);width:200%;height:200%;position:fixed;top:-50%;left:-50%}.glass-panel{background:var(--glass-bg);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);border-radius:24px;box-shadow:0 8px 32px #0000004d}h1,h2,h3,h4,h5,h6{letter-spacing:-.02em;font-weight:600}a{color:var(--secondary);text-decoration:none;transition:color .3s}a:hover{color:var(--primary)}button{cursor:pointer;border:none;outline:none;font-family:inherit}.btn-primary{background:linear-gradient(135deg, var(--primary), var(--secondary));color:#fff;border-radius:12px;padding:12px 24px;font-size:1rem;font-weight:600;transition:transform .2s,box-shadow .2s}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 15px #9b51e066}.btn-secondary{color:#fff;background:#ffffff1a;border-radius:12px;padding:10px 20px;font-size:.9rem;transition:background .2s}.btn-secondary:hover{background:#fff3}input[type=text],input[type=password],input[type=file]{border:1px solid var(--glass-border);width:100%;color:var(--text-primary);background:#0003;border-radius:12px;padding:12px 16px;font-size:1rem;transition:border-color .3s}input:focus{border-color:var(--secondary);outline:none}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#0000001a}::-webkit-scrollbar-thumb{background:#fff3;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#ffffff4d}.auth-container{justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.auth-form{flex-direction:column;gap:20px;width:100%;max-width:400px;padding:40px;display:flex}.auth-form h2{text-align:center;background:linear-gradient(90deg,#fff,#a0aabf);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:10px;font-size:2rem}.error-message{color:#ff4b4b;text-align:center;background:#ff4b4b1a;border-radius:8px;padding:10px;font-size:.9rem}.dashboard{flex:1;grid-template-columns:280px 1fr;gap:16px;width:100%;max-width:1400px;margin:0 auto;padding:16px;display:grid}.sidebar{flex-direction:column;gap:16px;padding:16px;display:flex}.main-content{flex-direction:column;gap:16px;display:flex}.topbar{justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.search-bar{flex:1;max-width:500px;position:relative}.search-bar input{border-radius:24px;padding-left:40px}.search-icon{color:var(--text-secondary);position:absolute;top:50%;left:14px;transform:translateY(-50%)}.song-list{flex-direction:column;gap:12px;display:flex}.song-item{background:#ffffff05;border-radius:16px;justify-content:space-between;align-items:center;padding:16px;transition:background .3s;display:flex}.song-item:hover{background:#ffffff14}.song-info{align-items:center;gap:16px;display:flex}.song-info h4{margin-bottom:4px}.song-info p{color:var(--text-secondary);font-size:.85rem}.song-actions{align-items:center;gap:12px;display:flex}.upload-modal{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#0009;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:fixed;top:0;left:0}.upload-content{flex-direction:column;gap:20px;width:90%;max-width:500px;padding:32px;display:flex}.checkbox-group{align-items:center;gap:10px;display:flex}.checkbox-group input[type=checkbox]{cursor:pointer;width:20px;height:20px}