:root{--primary: #1db954;--primary-light: #1ed760;--primary-dark: #169c46;--bg: #121212;--bg-card: #181818;--bg-sidebar: #000000;--bg-hover: #282828;--text: #ffffff;--text-muted: #b3b3b3;--border: #333333;--success: #1db954;--warning: #f59e0b;--danger: #ef4444;--info: #3b82f6;--radius: 8px}[data-theme=light]{--bg: #f5f5f5;--bg-card: #ffffff;--bg-sidebar: #1a1a2e;--bg-hover: #e8e8e8;--text: #1a1a1a;--text-muted: #666666;--border: #e0e0e0}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}a{color:var(--primary-light);text-decoration:none}.app-layout{display:flex;min-height:100vh;padding-bottom:80px}.main-content{flex:1;margin-left:250px;padding:24px;min-height:100vh}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;gap:16px}.spinner{width:48px;height:48px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.sidebar{position:fixed;left:0;top:0;bottom:0;width:250px;background:var(--bg-sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:100}.sidebar-logo{padding:24px 20px;border-bottom:1px solid var(--border)}.sidebar-logo h2{color:var(--primary-light);font-size:1.5rem;font-weight:800}.sidebar-logo span{display:block;color:var(--text-muted);font-size:.75rem;margin-top:2px}.sidebar-nav{flex:1;padding:12px 8px;display:flex;flex-direction:column;gap:4px}.sidebar-nav a{display:flex;align-items:center;gap:12px;padding:10px 16px;border-radius:8px;color:var(--text-muted);font-size:.9rem;transition:all .2s}.sidebar-nav a:hover,.sidebar-nav a.active{background:var(--primary);color:#fff}.sidebar-user{padding:16px 20px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-size:.85rem}.sidebar-user button{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:.8rem}.sidebar-user button:hover{color:var(--danger)}.player-bar{position:fixed;bottom:0;left:0;right:0;height:72px;background:var(--bg-card);border-top:1px solid var(--border);display:flex;align-items:center;padding:0 16px;gap:16px;z-index:100}.player-info{flex:1;min-width:0}.player-info .title{font-weight:500;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.player-info .artist{color:var(--text-muted);font-size:.75rem}.player-controls{display:flex;align-items:center;gap:16px}.player-controls button{background:none;border:none;color:var(--text);width:40px;height:40px;border-radius:50%;cursor:pointer;font-size:1.2rem;transition:all .2s;display:flex;align-items:center;justify-content:center}.player-controls button:hover{transform:scale(1.1);color:#fff}.player-live{background:var(--danger)!important;animation:pulse-live 1.5s infinite}@keyframes pulse-live{0%,to{opacity:1}50%{opacity:.7}}.player-stats{color:var(--text-muted);font-size:.8rem;min-width:80px;text-align:right}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.card-header h3{font-size:1.1rem;font-weight:600}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.btn{padding:8px 20px;border-radius:8px;border:none;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:8px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-light)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#dc2626}.btn-secondary{background:var(--border);color:var(--text)}.btn-secondary:hover{background:#3d3d5c}.btn-success{background:var(--success);color:#fff}.btn-sm{padding:4px 12px;font-size:.8rem}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;font-size:.85rem;font-weight:500;color:var(--text-muted)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 14px;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:.9rem;outline:none;transition:border-color .2s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary)}.table-wrapper{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:.9rem}th{color:var(--text-muted);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.5px}tr:hover td{background:#6c2bd90d}.badge{padding:3px 10px;border-radius:20px;font-size:.75rem;font-weight:600}.badge-success{background:#10b98126;color:var(--success)}.badge-warning{background:#f59e0b26;color:var(--warning)}.badge-danger{background:#ef444426;color:var(--danger)}.badge-info{background:#3b82f626;color:var(--info)}.badge-primary{background:#6c2bd926;color:var(--primary-light)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.stat-card .stat-value{font-size:2rem;font-weight:700;margin:4px 0}.stat-card .stat-label{color:var(--text-muted);font-size:.85rem}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:200}.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;min-width:440px;max-width:90vw;max-height:90vh;overflow-y:auto}.modal h3{margin-bottom:20px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.page-header h1{font-size:1.5rem;font-weight:700}.search-bar{display:flex;gap:12px;margin-bottom:20px}.search-bar input{flex:1;padding:10px 16px;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:.9rem;outline:none}.search-bar input:focus{border-color:var(--primary)}.empty-state{text-align:center;padding:48px 20px;color:var(--text-muted)}.empty-state svg{width:64px;height:64px;margin-bottom:16px;opacity:.4}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--bg) 0%,#1a1040 100%)}.login-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:40px;width:400px;max-width:90vw}.login-card h1{text-align:center;color:var(--primary-light);font-size:2rem;margin-bottom:4px}.login-card .subtitle{text-align:center;color:var(--text-muted);margin-bottom:32px;font-size:.9rem}.login-card .btn{width:100%;justify-content:center;padding:12px;margin-top:8px}.live-dot{width:10px;height:10px;background:var(--danger);border-radius:50%;display:inline-block;animation:pulse-dot 1.5s infinite}@keyframes pulse-dot{0%,to{box-shadow:0 0 #ef444466}50%{box-shadow:0 0 0 6px #ef444400}}.track-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:8px;cursor:pointer;transition:background .15s}.track-item:hover{background:#6c2bd914}.track-item .track-num{color:var(--text-muted);font-size:.8rem;width:28px;text-align:center}.track-info{flex:1}.track-info .track-title{font-weight:500;font-size:.9rem}.track-info .track-artist{color:var(--text-muted);font-size:.8rem}.track-duration{color:var(--text-muted);font-size:.8rem;min-width:50px;text-align:right}@media(max-width:768px){.sidebar{width:60px}.sidebar-logo h2,.sidebar-logo span,.sidebar-nav a span,.sidebar-user span{display:none}.main-content{margin-left:60px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}