:root{--bg-dark:#0f1115;--bg-panel:#181a20;--bg-hover:#23252e;--primary:#0ea5e9;--primary-hover:#38bdf8;--accent:#7dd3fc;--text-main:#f0f1f5;--text-muted:#8b92a5;--border:#2c2f3a;--danger:#ff4b4b;--success:#10b981;--warning:#f59e0b;--border-radius-lg:16px;--border-radius-md:10px;--border-radius-sm:6px;--shadow-sm:0 4px 6px -1px #0000004d;--shadow-lg:0 10px 25px -5px #0006}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);color:var(--text-main);font-family:Inter,sans-serif;line-height:1.5;overflow-x:hidden}.form-group.full-width{grid-column:span 2}.form-group label{color:var(--text-muted);align-items:center;gap:6px;font-size:.85rem;font-weight:600;display:flex}.form-group label .required{color:var(--danger)}.form-group input,.form-group select{background-color:var(--bg-dark);border:1px solid var(--border);border-radius:var(--border-radius-md);color:var(--text-main);padding:10px 14px;font-size:16px;transition:all .2s}.form-group input[readonly]{cursor:default;background-color:#ffffff05}.minimal-input{box-shadow:none!important;background:0 0!important;border:none!important;padding:0!important}.lang-tag{width:40px;color:var(--accent);text-align:center;font-size:.75rem;font-weight:700}.lang-input-with-tts{flex:1;gap:8px;display:flex}.lang-input-with-tts input{flex:1}.tts-play-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:0 8px;transition:color .2s}.tts-play-btn:hover{color:var(--accent)}.url-input-row{gap:8px;display:flex}.url-input-row input{flex:1}.modal-url-play-btn{touch-action:manipulation;justify-content:center;align-items:center;width:44px;height:44px;display:flex;border-radius:var(--border-radius-md)!important;padding:0!important}.tag-input-wrapper{background-color:var(--bg-dark);border:1px solid var(--border);border-radius:var(--border-radius-md);flex-wrap:wrap;gap:8px;padding:8px;display:flex}.tag-removable{background-color:var(--bg-hover);border:1px solid var(--border);border-radius:20px;align-items:center;gap:6px;padding:4px 10px;font-size:.8rem;display:flex}.tag-input-wrapper input{flex:1;min-width:120px;background:0 0!important;border:none!important;padding:4px!important}.tag-input-wrapper input:focus{box-shadow:none!important}.inline-label-with-action{justify-content:space-between;align-items:center;display:flex}.similar-song-item{cursor:default;transition:transform .2s,background-color .2s}.similar-song-item:hover{transform:translate(4px);background-color:#ffffff0d!important}@keyframes fadeIn{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.3s ease-out forwards fadeIn}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.animate-spin{animation:1s linear infinite spin}.app-container{width:100%;height:100vh;display:flex;overflow:hidden}.sidebar{background-color:var(--bg-panel);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:260px;padding:1.5rem 0;transition:width .3s;display:flex;overflow:hidden}.sidebar.collapsed{width:70px}.logo-container{color:var(--accent);align-items:center;gap:12px;padding:0 1.5rem 2rem;display:flex}.logo-container h1{letter-spacing:-.02em;font-size:1.25rem;font-weight:700}.logo-container i:not(#sidebarToggleBtn){font-size:1.8rem}.sidebar.collapsed .logo-container h1,.sidebar.collapsed .nav-item span{display:none}.sidebar.collapsed .logo-container{flex-direction:column;justify-content:center;gap:16px;padding:0 0 2rem}.sidebar.collapsed .nav-item{justify-content:center;padding:12px 0}.nav-menu{flex-direction:column;flex:1;gap:5px;min-height:0;padding:0 1rem;display:flex;overflow-y:auto}.nav-item{color:var(--text-muted);border-radius:var(--border-radius-md);align-items:center;gap:12px;padding:12px 16px;font-weight:500;text-decoration:none;transition:all .2s;display:flex}.nav-item:hover{background-color:var(--bg-hover);color:var(--text-main)}.nav-item.active{background:linear-gradient(135deg, var(--primary), var(--accent));color:#fff;box-shadow:var(--shadow-sm)}.nav-item i{font-size:1.2rem}.nav-divider{align-items:center;margin:1.5rem 0 .5rem;padding:0 1rem;display:flex}.nav-divider:before,.nav-divider:after{content:"";background:var(--border);opacity:.5;flex:1;height:1px}.nav-divider span{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;white-space:nowrap;padding:0 10px;font-size:.7rem;font-weight:700}.main-content{background-color:var(--bg-dark);flex-direction:column;flex:1;padding:0;display:flex;position:relative;overflow-y:auto}.top-header{z-index:100;background-color:var(--bg-dark);border-bottom:1px solid var(--border);margin-bottom:0;padding:1rem 1.5rem;position:sticky;top:0}.header-main-row{align-items:center;gap:12px;width:100%;display:flex}.header-branding{flex:1;align-items:center;min-width:0;display:flex}.header-branding .logo-container{cursor:default;color:var(--text-main);align-items:center;gap:10px;padding:0;display:flex}.header-branding .logo-container i{color:var(--primary);font-size:24px}.header-branding .logo-container h1{letter-spacing:-.01em;margin:0;font-size:20px;font-weight:700}.header-controls{order:2;align-items:center;gap:12px;margin-left:auto;display:flex}#uiLanguageSelector{order:3}.api-mode-controls{align-items:center;gap:8px;display:inline-flex}.api-mode-badge{border:1px solid var(--border);letter-spacing:.08em;text-transform:uppercase;border-radius:999px;justify-content:center;align-items:center;min-width:78px;padding:7px 12px;font-size:.76rem;font-weight:800;display:inline-flex}.api-mode-badge-local{color:#6ee7b7;background:#10b9811f;border-color:#10b98173}.api-mode-badge-remote{color:#fbbf24;background:#f59e0b24;border-color:#f59e0b73}.api-mode-toggle-btn{min-width:104px;padding:9px 14px}.api-mode-toggle-btn.is-remote{color:#fbbf24;border-color:#f59e0b80}.api-mode-toggle-btn:disabled{cursor:default;opacity:.55}.search-box{align-items:center;display:flex;position:relative}.search-box i.ti-search{color:var(--text-muted);pointer-events:none;position:absolute;left:14px}.search-box input{background-color:var(--bg-panel);border:1px solid var(--border);color:var(--text-main);border-radius:var(--border-radius-md);width:100%;padding:10px 36px 10px 40px;font-family:inherit;font-size:16px;transition:border-color .2s,box-shadow .2s}.search-box input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #0ea5e933}.search-clear-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:4px;transition:color .2s;display:flex;position:absolute;right:12px}.search-clear-btn:hover{color:var(--text-main);background-color:#ffffff1a}.filter-toolbar{background-color:var(--bg-dark);border-bottom:1px solid var(--border);padding:12px 1.5rem}.table-filters{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:0;display:flex}.search-box-filter{flex:280px;min-width:0}.search-count-row{display:contents}.search-box-filter input,.search-box-filter input:focus{width:100%}.song-count-label{color:var(--text-muted);background:var(--bg-panel);border:1px solid var(--border);border-radius:20px;margin-left:auto;padding:4px 10px;font-size:.82rem;font-weight:500}.filter-group{align-items:center;gap:10px;display:flex}.filter-group label{color:var(--text-muted);font-size:.85rem;font-weight:600}.filter-select{border-radius:var(--border-radius-sm);border:1px solid var(--border);background-color:var(--bg-panel);min-width:120px;color:var(--text-main);padding:8px 10px;font-family:inherit;font-size:.85rem}.filter-select:focus{border-color:var(--primary);outline:none}.filter-checkbox{color:var(--text-main);-webkit-user-select:none;user-select:none;align-items:center;gap:6px;font-size:.85rem;display:inline-flex}.filter-checkbox input{accent-color:var(--primary)}.bulk-tag-group{align-items:center;gap:8px;display:inline-flex}.bulk-tag-group .filter-select{min-width:240px}.bulk-selected-count{color:var(--text-muted);min-width:72px;font-size:.82rem}.btn.active-mode{border-color:var(--accent);color:var(--accent);background-color:#7dd3fc1f}.data-table tbody tr.row-selected td{background-image:linear-gradient(90deg,#7dd3fc24,#7dd3fc0a)}body.multi-select-active .data-table{-webkit-user-select:none;user-select:none}.btn{border-radius:var(--border-radius-md);cursor:pointer;touch-action:manipulation;border:none;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:10px 20px;font-family:inherit;font-size:.9rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-hover);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.btn-secondary{background-color:var(--bg-panel);color:var(--text-main);border:1px solid var(--border)}.btn-secondary:hover{background-color:var(--bg-hover)}.btn-danger{color:var(--danger);background-color:#ff4b4b1a}.btn-danger:hover{background-color:var(--danger);color:#fff}.action-icon-btn{border-radius:var(--border-radius-md);min-width:44px;min-height:44px;padding:10px}.table-container{background-color:var(--bg-panel);border-radius:var(--border-radius-lg);border:1px solid var(--border);flex:1;margin:0 1.5rem;position:relative;overflow-y:auto}.table-container.minimal{max-height:400px}.data-table{border-collapse:collapse;text-align:left;width:100%}.data-table th{color:var(--text-muted);letter-spacing:.05em;text-transform:uppercase;z-index:1;background-color:#181a20cc;padding:16px;font-size:.85rem;font-weight:600;position:sticky;top:0}.data-table td{border-bottom:1px solid var(--border);vertical-align:middle;padding:14px 16px;font-size:.95rem}.data-table tbody tr:hover{background-color:var(--bg-hover);cursor:pointer}.data-table tbody tr:last-child td{border-bottom:none}.multi-lang-cell{flex-direction:column;gap:6px;display:flex}.lang-line{align-items:center;gap:8px;display:flex}.lang-line-label{background-color:var(--bg-hover);color:var(--text-muted);letter-spacing:.03em;border-radius:var(--border-radius-sm);text-align:center;flex-shrink:0;min-width:48px;padding:3px 7px;font-size:.68rem;font-weight:700}.lang-line-value{color:var(--text-main);word-break:break-word}.empty-state{height:100%;color:var(--text-muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:40px;display:flex}.empty-state i{color:var(--border);margin-bottom:1rem;font-size:4rem}.empty-state h3{color:var(--text-main);margin-bottom:8px;font-size:1.25rem}.tags{flex-wrap:wrap;gap:6px;display:flex}.tag{color:var(--accent);background-color:#7dd3fc26;border-radius:20px;align-items:center;gap:4px;padding:4px 10px;font-size:.75rem;font-weight:600;display:inline-flex}.tag.lang{color:var(--success);background-color:#10b98126}.tag.badge-singer{color:#c084fc;background-color:#a855f71f;border:1px solid #a855f759;padding:4px 12px}.tag.badge-title{color:#38bdf8;background-color:#0ea5e91f;border:1px solid #0ea5e959;padding:4px 12px}.pagination-container{justify-content:center;margin-top:20px;margin-bottom:40px;padding-top:12px;display:flex}.bulk-action-toolbar{border-bottom:1px solid var(--accent);z-index:100;background:#0ea5e90d;width:100%;margin-bottom:0;position:sticky;top:0;overflow:visible}.bulk-action-toolbar .toolbar-content{justify-content:space-between;align-items:center;gap:12px;padding:8px 1.5rem;display:flex}.bulk-action-toolbar .toolbar-info{color:var(--text-color);font-size:.82rem}.bulk-action-toolbar .toolbar-info strong{color:var(--accent);font-size:.95rem}.bulk-action-toolbar .toolbar-actions{align-items:center;gap:6px;display:flex}.bulk-action-toolbar .btn{padding:6px 10px;font-size:.8rem}.popover-container{position:relative}.tag-selector-popup{background:var(--bg-panel);border:1px solid var(--border);z-index:200;border-radius:8px;flex-direction:column;width:180px;display:flex;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 8px 24px #0000004d}.tag-selector-popup .popup-header{border-bottom:1px solid var(--border);color:var(--text-muted);justify-content:space-between;align-items:center;padding:8px 12px;font-size:.8rem;font-weight:600;display:flex}.tag-selector-popup .popup-header button{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:2px}.tag-selector-popup .tag-list{max-height:250px;padding:4px;overflow-y:auto}.tag-selector-popup .tag-item{text-align:left;width:100%;color:var(--text-color);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:8px 12px;font-size:.85rem;transition:all .2s}.tag-selector-popup .tag-item:hover{color:var(--accent);background:#0ea5e91a}.pagination{align-items:center;gap:8px;display:flex}.page-info{color:var(--text-muted);align-items:center;gap:4px;font-size:.85rem;display:inline-flex}.page-input{text-align:center;border:1px solid var(--border);border-radius:var(--border-radius-sm);background:var(--bg-panel);width:52px;color:var(--text-main);padding:4px 6px;font-family:inherit;font-size:.85rem}.page-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 2px #0ea5e933}.page-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.page-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.page-input[type=number]{appearance:textfield}.mobile-url-id{color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;flex:1;align-items:center;font-family:monospace;font-size:.88rem;display:none;overflow:hidden}.mobile-song-primary{gap:4px;display:none}.mobile-primary-title{color:var(--text-main);font-size:1rem;font-weight:700}.mobile-primary-singer{color:var(--text-muted);font-size:.88rem}.ui-lang-selector{border-radius:var(--border-radius-sm);border:1px solid var(--border);background-color:var(--bg-panel);color:var(--text-main);cursor:pointer;padding:6px 8px;font-family:inherit;font-size:.8rem}.ui-lang-selector:focus{border-color:var(--primary);outline:none}@media (max-width:1200px){.header-controls{flex-wrap:wrap}#uiLanguageSelector{flex-shrink:0;order:0;width:auto}}.td-actions{white-space:nowrap}.td-actions .action-btn+.action-btn{margin-left:4px}.action-btn{color:var(--text-muted);cursor:pointer;border-radius:var(--border-radius-sm);touch-action:manipulation;background:0 0;border:none;justify-content:center;align-items:center;min-width:44px;min-height:44px;padding:6px;transition:all .2s;display:inline-flex}.action-btn:hover{background-color:var(--bg-hover);color:var(--text-main)}.action-btn.delete:hover{color:var(--danger);background-color:#ff4b4b1a}.modal{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);z-index:1000;background-color:#0f1115d9;justify-content:center;align-items:center;display:none;position:fixed;inset:0}.modal.show{display:flex}.modal-content{background-color:var(--bg-panel);border:1px solid var(--border);border-radius:var(--border-radius-lg);width:100%;max-width:820px;box-shadow:var(--shadow-lg);flex-direction:column;max-height:90vh;animation:.3s ease-out fadeIn;display:flex}.video-cached{border:1px solid var(--accent)!important}.large-modal{max-width:900px;max-height:90vh}.modal-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.modal-header h3{font-size:1.25rem;font-weight:600}.close-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;padding:4px;font-size:1.2rem;transition:all .2s}.close-btn:hover{background-color:var(--bg-hover);color:var(--text-main)}.modal-body{flex:1;padding:24px;overflow-y:auto}#similarSongsPanel{flex-direction:column;flex:1;height:100%;display:none}#similarSongsPanel.show{display:flex}#similarSongsList{flex-direction:column;flex:1;gap:8px;display:flex;overflow-y:auto}.review-desc{color:var(--text-muted);margin-bottom:16px;font-size:.9rem}.bulk-inline-row{gap:8px;display:flex}.bulk-inline-row input{flex:1}.bulk-tag-selected,.bulk-tag-pool{border:1px solid var(--border);border-radius:var(--border-radius-sm);background-color:var(--bg-dark);flex-wrap:wrap;gap:8px;min-height:42px;padding:10px;display:flex}.bulk-empty-text{color:var(--text-muted);font-size:.85rem}.bulk-tag-chip{border:1px solid var(--border);background-color:var(--bg-panel);color:var(--text-main);cursor:pointer;border-radius:999px;align-items:center;gap:6px;padding:5px 11px;font-size:.8rem;display:inline-flex}.bulk-tag-chip:hover{border-color:var(--accent)}.bulk-tag-chip.selected{background-color:#7dd3fc33;border-color:#7dd3fc99}.chart-sync-category-group{border:1px solid var(--border);border-radius:var(--border-radius-sm);background-color:var(--bg-dark);grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 12px;padding:12px;display:grid}.chart-sync-category-group .filter-checkbox{width:100%}.chart-sync-category-actions{justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px;display:flex}.form-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}.form-group{flex-direction:column;gap:8px;display:flex}.full-width{grid-column:1/-1}.form-group label{color:var(--text-main);font-size:.9rem;font-weight:500}.inline-label-with-action{justify-content:space-between;align-items:center;gap:10px;display:flex}.btn.btn-xs{padding:6px 10px;font-size:.78rem;font-weight:600}.required{color:var(--danger);margin-left:2px}.form-group input,.form-group select{background-color:var(--bg-dark);border:1px solid var(--border);color:var(--text-main);border-radius:var(--border-radius-md);padding:12px 14px;font-family:inherit;font-size:.95rem;transition:all .2s}.form-group input:focus,.form-group select:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #0ea5e933}#songFormModal input.en-required-empty{border-color:var(--danger);box-shadow:0 0 0 3px #ff6b6b2e}.song-meta-info{border:1px solid var(--border);border-radius:var(--border-radius-md);background-color:#ffffff05;padding:12px 14px}.song-meta-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.song-meta-item{background-color:var(--bg-dark);border:1px solid var(--border);border-radius:var(--border-radius-sm);justify-content:space-between;align-items:center;padding:10px 12px;display:flex}.song-meta-label{color:var(--text-muted);font-size:.82rem;font-weight:600}.song-meta-value{color:var(--text-main);font-size:.9rem;font-weight:600}.url-verify-status{border-radius:var(--border-radius-sm);word-break:break-all;border:1px solid var(--border);background-color:#ffffff05;margin-top:4px;padding:8px 10px;font-size:.82rem;line-height:1.4}.url-verify-status.ok{border-color:var(--success);color:var(--success)}.url-verify-status.issue{border-color:var(--warning);color:var(--warning)}.url-verify-status.unknown{color:var(--text-muted)}.available-tags{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.available-tag-btn{border:1px solid var(--border);background-color:var(--bg-dark);color:var(--text-muted);cursor:pointer;border-radius:999px;padding:4px 10px;font-size:.76rem;transition:all .15s}.available-tag-btn:hover{border-color:var(--accent);color:var(--accent)}.available-tag-btn.selected{color:var(--accent);cursor:default;background-color:#7dd3fc26;border-color:#7dd3fc80}.multi-lang-section{border-radius:var(--border-radius-md);border:1px dashed var(--border);background-color:#ffffff05;padding:15px}.lang-inputs{flex-direction:column;gap:12px;margin-top:8px;display:flex}.lang-row{align-items:center;gap:12px;display:flex}.lang-tag{background-color:var(--bg-hover);color:var(--text-muted);border-radius:var(--border-radius-sm);text-align:center;min-width:44px;padding:6px 10px;font-size:.75rem;font-weight:700}.lang-tag.interactive{cursor:pointer;-webkit-user-select:none;user-select:none;transition:all .15s}.lang-tag.interactive:hover{color:var(--text-main);border-color:var(--accent);box-shadow:inset 0 0 0 1px #7dd3fc59}.lang-row input{flex:1}.lang-input-with-tts{flex:1;align-items:center;display:flex;position:relative}.lang-input-with-tts input{width:100%;padding-right:42px}.song-form-readonly-text{width:100%;min-height:40px;color:var(--text-main);border:1px solid var(--border);border-radius:var(--border-radius-md);word-break:break-word;background-color:#ffffff08;align-items:center;padding:10px 12px;line-height:1.35;display:flex}#songFormModal.song-form-view-mode .song-form-readonly-text{background:0 0;border:none;border-radius:0;min-height:0;padding:0}#songFormModal.song-form-view-mode .tag-input-wrapper{box-shadow:none;background:0 0;border:none;padding:0}.tts-play-btn{color:var(--text-main);opacity:.68;cursor:pointer;touch-action:manipulation;background:#ffffff14;border:1px solid #ffffff29;border-radius:999px;justify-content:center;align-items:center;width:36px;height:36px;transition:all 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