*,::after,::before{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Noto Sans KR',sans-serif;background:#1a1a2e;color:#eee;min-height:100vh;overflow-x:hidden}:root{--bg-primary:#1a1a2e;--bg-secondary:#16213e;--bg-input:#0f0f23;--accent:#e94560;--accent-hover:#ff6b81;--text-primary:#eee;--text-secondary:#aaa;--text-muted:#666;--success:#4ecca3;--warning:#f0a500;--danger:#e94560;--border:#2a2a4a;--border-focus:#e94560;--radius:8px;--radius-sm:4px}button,input,select,textarea{font-family:inherit}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#3a3a5a}.hidden{display:none!important}.admin-only{display:none!important}.admin-only.show{display:flex!important}.login-container{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}.login-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:40px;width:100%;max-width:400px;text-align:center}.login-title{font-size:28px;font-weight:700;color:var(--accent);margin-bottom:8px}.login-subtitle{color:var(--text-secondary);font-size:14px;margin-bottom:32px}.form-group{margin-bottom:16px;text-align:left}.form-group label{display:block;font-size:13px;color:var(--text-secondary);margin-bottom:6px}.form-input{width:100%;padding:10px 14px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-size:15px;transition:border-color .2s}.form-input:focus{outline:0;border-color:var(--border-focus);box-shadow:0 0 0 2px rgba(233,69,96,.2)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;transition:background .2s,transform .1s}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent);color:#fff;width:100%;padding:12px;font-size:16px;margin-top:8px}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:var(--border);color:var(--text-primary)}.btn-secondary:hover{background:#3a3a5a}.btn-danger{background:0 0;color:var(--danger);border:1px solid var(--danger)}.btn-danger:hover{background:rgba(233,69,96,.15)}.btn-sm{padding:6px 12px;font-size:12px}.btn-icon{background:0 0;color:var(--text-secondary);padding:6px 8px;font-size:18px}.btn-icon:hover{color:var(--text-primary)}.login-error{color:var(--danger);font-size:13px;margin-top:12px;min-height:20px}.app-container{display:flex;flex-direction:column;height:100vh}.header{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:var(--bg-secondary);border-bottom:1px solid var(--border);flex-shrink:0}.header-left{display:flex;align-items:center;gap:16px}.header-logo{font-size:18px;font-weight:700;color:var(--accent)}.header-right{display:flex;align-items:center;gap:12px}.network-status{font-size:13px;display:flex;align-items:center;gap:4px}.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block}.status-online .status-dot{background:var(--success)}.status-offline .status-dot{background:var(--danger)}.status-online .status-text{color:var(--success)}.status-offline .status-text{color:var(--danger)}.user-info{font-size:13px;color:var(--text-secondary)}.user-info strong{color:var(--text-primary)}.btn-logout{background:0 0;color:var(--text-secondary);border:1px solid var(--border);padding:6px 14px;font-size:12px}.btn-logout:hover{border-color:var(--text-secondary);color:var(--text-primary)}.shortcut-bar{padding:6px 24px;background:rgba(22,33,62,.6);border-bottom:1px solid var(--border);font-size:12px;color:var(--text-muted);flex-shrink:0;white-space:nowrap;overflow-x:auto}.shortcut-bar kbd{background:var(--bg-input);border:1px solid var(--border);border-radius:3px;padding:1px 5px;font-size:11px;color:var(--text-secondary)}.main-layout{display:grid;grid-template-columns:1fr 340px;flex:1;overflow:hidden}.track-panel{display:flex;flex-direction:column;border-right:1px solid var(--border);overflow:hidden}.track-toolbar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--border);flex-shrink:0}.search-wrap{flex:1;position:relative}.search-wrap::before{content:'🔍';position:absolute;left:10px;top:50%;transform:translateY(-50%);font-size:13px;pointer-events:none}.search-input{width:100%;padding:8px 12px 8px 32px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-size:13px}.search-input:focus{outline:0;border-color:var(--border-focus)}.sort-btns{display:flex;gap:4px}.sort-btns .btn{padding:6px 10px;font-size:12px}.sort-btns .btn.active{background:var(--accent);color:#fff}.track-list{flex:1;overflow-y:auto;padding:4px 0}.track-item{display:flex;align-items:center;padding:10px 16px;cursor:pointer;transition:background .15s;border-left:3px solid transparent;gap:12px}.track-item:hover{background:rgba(42,42,74,.5)}.track-item.selected{background:rgba(42,42,74,.8);border-left-color:var(--text-secondary)}.track-item.playing{background:rgba(233,69,96,.12);border-left-color:var(--accent)}.track-item.playing .track-label{color:var(--accent)}.track-item.playing .track-num{color:var(--accent);font-weight:700}.drag-handle{cursor:grab;color:var(--text-muted);font-size:14px;flex-shrink:0;width:16px;text-align:center;opacity:.4;transition:opacity .15s}.track-item:hover .drag-handle{opacity:1}.track-item.dragging{opacity:.4}.track-item.drag-over{border-top:2px solid var(--accent)}.track-num{width:24px;text-align:right;font-size:12px;color:var(--text-muted);flex-shrink:0}.track-label{flex:1;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.track-duration{font-size:12px;color:var(--text-muted);flex-shrink:0;font-variant-numeric:tabular-nums}.track-footer{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-top:1px solid var(--border);flex-shrink:0}.track-actions{display:flex;gap:6px}.track-stats{font-size:12px;color:var(--text-muted)}.player-panel{display:flex;flex-direction:column;padding:20px;gap:20px;overflow-y:auto}.transport{display:flex;gap:12px;justify-content:center}.btn-play,.btn-stop{width:60px;height:60px;border-radius:50%;font-size:24px;display:flex;align-items:center;justify-content:center;border:none;cursor:pointer;transition:transform .1s,background .2s}.btn-play{background:var(--accent);color:#fff}.btn-play:hover{background:var(--accent-hover)}.btn-stop{background:var(--border);color:var(--text-primary)}.btn-stop:hover{background:#3a3a5a}.controls-section{display:flex;flex-direction:column;gap:14px}.control-row{display:flex;align-items:center;gap:10px}.control-label{font-size:12px;color:var(--text-secondary);width:70px;flex-shrink:0}.toggle-group{display:flex;gap:8px}.toggle-btn{padding:6px 14px;font-size:12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:0 0;color:var(--text-secondary);cursor:pointer;transition:all .2s}.toggle-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.volume-wrap{flex:1;display:flex;align-items:center;gap:8px}input[type=range]{-webkit-appearance:none;appearance:none;flex:1;height:4px;background:var(--border);border-radius:2px;outline:0}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer}input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer;border:none}.volume-value{font-size:12px;color:var(--text-secondary);width:36px;text-align:right;font-variant-numeric:tabular-nums}.fade-input{width:60px;padding:4px 8px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-size:13px;text-align:center}.fade-input:focus{outline:0;border-color:var(--border-focus)}.fade-unit{font-size:12px;color:var(--text-muted)}.now-playing{background:var(--bg-input);border-radius:var(--radius);padding:16px;text-align:center}.now-playing-status{font-size:12px;color:var(--text-muted);margin-bottom:4px;text-transform:uppercase;letter-spacing:1px}.now-playing-status.playing{color:var(--accent)}.now-playing-status.paused{color:var(--warning)}.now-playing-label{font-size:16px;font-weight:600;margin-bottom:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.time-display{font-size:24px;font-weight:300;font-variant-numeric:tabular-nums;margin-bottom:10px;color:var(--text-secondary)}.progress-container{width:100%;height:4px;background:var(--border);border-radius:2px;overflow:hidden}.progress-bar{height:100%;background:var(--accent);border-radius:2px;width:0%;transition:width .15s linear}.admin-nav{display:flex;gap:6px;padding-top:12px;border-top:1px solid var(--border)}.loading-overlay{position:fixed;inset:0;background:rgba(26,26,46,.95);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:1000}.loading-icon{font-size:48px;margin-bottom:20px;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,100%{opacity:.5;transform:scale(1)}50%{opacity:1;transform:scale(1.05)}}.loading-title{font-size:18px;margin-bottom:20px;color:var(--text-secondary)}.loading-bar-container{width:300px;height:6px;background:var(--border);border-radius:3px;overflow:hidden;margin-bottom:12px}.loading-bar{height:100%;background:var(--accent);border-radius:3px;width:0%;transition:width .3s ease}.loading-text{font-size:13px;color:var(--text-muted)}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;z-index:500}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:24px;width:90%;max-width:500px;max-height:80vh;overflow-y:auto}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.modal-title{font-size:18px;font-weight:600}.modal-close{background:0 0;border:none;color:var(--text-secondary);font-size:24px;cursor:pointer;padding:0;line-height:1}.modal-close:hover{color:var(--text-primary)}.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:30px;text-align:center;color:var(--text-muted);margin-bottom:16px;transition:border-color .2s,background .2s;cursor:pointer}.drop-zone.drag-over{border-color:var(--accent);background:rgba(233,69,96,.08);color:var(--text-secondary)}.drop-zone-icon{font-size:32px;margin-bottom:8px}.drop-zone-text{font-size:14px}.drop-zone-sub{font-size:12px;margin-top:4px;color:var(--text-muted)}.selected-file{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--bg-input);border-radius:var(--radius-sm);margin-bottom:12px;font-size:13px}.selected-file-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.selected-file-clear{cursor:pointer;color:var(--text-muted)}.selected-file-clear:hover{color:var(--text-primary)}.upload-progress{margin-top:12px}.upload-progress-bar{width:100%;height:4px;background:var(--border);border-radius:2px;overflow:hidden;margin-bottom:4px}.upload-progress-fill{height:100%;background:var(--success);width:0%;transition:width .2s}.upload-progress-text{font-size:12px;color:var(--text-muted);text-align:right}.capacity-info{font-size:12px;color:var(--text-muted);margin-top:16px;padding-top:12px;border-top:1px solid var(--border)}.user-list{margin-top:16px}.user-item{display:flex;align-items:center;padding:10px 0;border-bottom:1px solid var(--border);gap:12px}.user-item:last-child{border-bottom:none}.user-name{flex:1;font-size:14px}.user-date{font-size:12px;color:var(--text-muted)}.user-actions{display:flex;gap:4px}.user-count{font-size:12px;color:var(--text-muted);margin-top:8px}.confirm-dialog{text-align:center}.confirm-message{font-size:15px;margin-bottom:20px;line-height:1.5}.confirm-actions{display:flex;gap:12px;justify-content:center}.notifications{position:fixed;bottom:20px;right:20px;display:flex;flex-direction:column;gap:8px;z-index:2000;pointer-events:none}.notification{padding:12px 20px;border-radius:var(--radius-sm);font-size:13px;max-width:360px;pointer-events:auto;animation:slideIn .3s ease;border-left:3px solid}@keyframes slideIn{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}.notification.fade-out{animation:fadeOut .3s ease forwards}@keyframes fadeOut{to{opacity:0;transform:translateX(40px)}}.notification-info{background:var(--bg-secondary);border-color:var(--text-secondary);color:var(--text-primary)}.notification-success{background:rgba(78,204,163,.15);border-color:var(--success);color:var(--success)}.notification-error{background:rgba(233,69,96,.15);border-color:var(--danger);color:var(--danger)}.notification-warning{background:rgba(240,165,0,.15);border-color:var(--warning);color:var(--warning)}@media (max-width:768px){.main-layout{grid-template-columns:1fr;grid-template-rows:1fr auto}.track-panel{border-right:none;border-bottom:1px solid var(--border)}.player-panel{padding:16px;gap:14px}.header{padding:10px 16px;flex-wrap:wrap;gap:8px}.shortcut-bar{display:none}.transport .btn-play,.transport .btn-stop{width:50px;height:50px;font-size:20px}}