*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#f5f7fb;color:#111827}#root{min-height:100vh}:root{--admin-sidebar-width: 240px;--admin-sidebar-width-collapsed: 48px;--color-bg-app: #f5f7fb;--color-bg-surface: #fff;--color-bg-surface-muted: #f8fafc;--color-bg-muted: #e2e8f0;--color-bg-muted-hover: #cbd5e1;--color-border: #e2e8f0;--color-border-soft: #e5e7eb;--color-text: #111827;--color-text-muted: #64748b;--color-text-secondary: #334155;--color-text-inverse: #fff;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-active: #1e293b;--color-dark: #0f172a;--color-dark-hover: #020617;--color-danger: #b91c1c;--color-danger-hover: #991b1b;--color-danger-soft: #dc2626;--color-danger-soft-hover: #b91c1c;--color-success: #16a34a;--color-success-hover: #15803d;--color-error-bg: #fee2e2;--color-error-border: #fecaca;--color-error-text: #991b1b;--radius-sm: 8px;--radius-md: 10px;--radius-lg: 12px;--radius-xl: 14px;--space-1: 4px;--space-2: 8px;--space-3: 10px;--space-4: 12px;--space-5: 16px;--space-6: 20px;--space-7: 24px}.container{max-width:1200px;margin:0 auto;padding:var(--space-7)}.admin-shell{min-height:100vh;display:flex}.admin-shell--loading{align-items:center;justify-content:center;padding:calc(var(--space-7) * 2)}.admin-loading-text{margin:0;font-size:16px;color:var(--color-text-muted)}.admin-sidebar-fixed{position:fixed;left:0;top:0;bottom:0;z-index:20;width:var(--admin-sidebar-width);padding:var(--space-5) var(--space-4);background:var(--color-bg-surface-muted);border-right:1px solid var(--color-border);display:flex;flex-direction:column;align-items:stretch;transition:width .22s ease,padding .22s ease,background-color .18s ease,border-color .18s ease}.admin-sidebar-fixed--collapsed{width:var(--admin-sidebar-width-collapsed);padding:var(--space-4) var(--space-2);align-items:center;cursor:pointer;-webkit-user-select:none;user-select:none}.admin-sidebar-fixed--collapsed:hover{background:#dbeafe;border-right-color:#93c5fd}.admin-sidebar-fixed--collapsed:hover .admin-sidebar-collapsed-mark{color:var(--color-primary)}.admin-content{flex:1;min-width:0;margin-left:var(--admin-sidebar-width);padding:var(--space-7) clamp(28px,5vw,64px) 40px;transition:margin-left .22s ease}.admin-content--sidebar-collapsed{margin-left:var(--admin-sidebar-width-collapsed)}.admin-tabs-root{display:flex;flex-direction:column;align-items:stretch;gap:var(--space-3);flex:1;min-height:0}.admin-sidebar-fixed--collapsed .admin-tabs-root{flex:1;align-items:center;justify-content:center;gap:0}.admin-sidebar-toggle{display:inline-flex;align-items:center;justify-content:center;width:100%;padding:var(--space-3) var(--space-2);border:none;border-radius:var(--radius-md);flex-shrink:0;font-size:14px;line-height:1.2;cursor:pointer;box-sizing:border-box;min-height:44px}.admin-sidebar-toggle.admin-sidebar-toggle--collapse{background:var(--color-primary);color:var(--color-text-inverse)}.admin-sidebar-toggle.admin-sidebar-toggle--collapse:hover{background:var(--color-primary-hover)}.admin-sidebar-collapsed-mark{display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary)}.tabs.tabs--vertical.admin-sidebar-tabs{flex:1 1 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button{display:inline-flex;align-items:center;gap:var(--space-2)}.tabs.tabs--vertical{flex-direction:column;margin-bottom:0;gap:6px;padding:0;background:transparent;border:none;border-radius:0;flex:0 0 auto}.tabs.tabs--vertical button{width:100%;justify-content:flex-start;background:var(--color-bg-muted);color:var(--color-primary-active);transition:background-color .15s ease,color .15s ease}.tabs.tabs--vertical button:hover:not(.active){background:var(--color-bg-muted-hover)}.tabs.tabs--vertical button.active{background:var(--color-dark);color:var(--color-text-inverse)}.tabs.tabs--vertical button.active:hover{background:var(--color-primary-active)}.tab-icon{flex-shrink:0;opacity:.95}.section-title-icon{margin-right:var(--space-2);vertical-align:-3px;color:var(--color-text-muted)}.analytics-summary-grid{margin-bottom:var(--space-5)}.analytics-summary-card{display:flex;flex-direction:column;gap:var(--space-3)}.analytics-summary-value{margin:0;font-size:28px;font-weight:700;color:var(--color-dark)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(360px,1fr));gap:var(--space-5)}.card{background:var(--color-bg-surface);border:1px solid var(--color-border-soft);border-radius:var(--radius-xl);padding:var(--space-5)}.card h2,.card h3{margin-top:0}button{border:none;border-radius:var(--radius-md);padding:var(--space-3) 14px;background:var(--color-primary);color:var(--color-text-inverse);font-size:14px;cursor:pointer}button.secondary{background:#475569}button.active{background:var(--color-dark)}button:disabled{opacity:.6;cursor:not-allowed}.admin-content button:not(:disabled):hover{background:var(--color-primary-hover)}.admin-content button.secondary:not(:disabled):hover{background:var(--color-text-secondary)}.admin-content button.active:not(:disabled):hover{background:var(--color-dark-hover)}.settings-subtitle{margin-top:var(--space-5)!important}.settings-subsection-title{margin:var(--space-5) 0 var(--space-1) 0;font-size:1rem;font-weight:600;color:var(--color-text-secondary)}label{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-4);font-size:14px}input{border:1px solid var(--color-bg-muted-hover);border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);font-size:14px}select{border:1px solid var(--color-bg-muted-hover);border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);font-size:14px;background:var(--color-bg-surface)}.search-input-wrap{margin-bottom:var(--space-4);display:flex;align-items:center;gap:var(--space-2);color:var(--color-text-muted)}.error{background:var(--color-error-bg);color:var(--color-error-text);border:1px solid var(--color-error-border);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);margin-bottom:var(--space-5)}.table{width:100%;border-collapse:collapse;font-size:14px}.table th,.table td{text-align:left;padding:var(--space-3) var(--space-2);border-bottom:1px solid var(--color-border-soft);vertical-align:middle}.table th{white-space:nowrap}.table-head-icon{margin-right:6px;vertical-align:-2px;color:var(--color-text-muted)}.table td.empty-state-cell{text-align:center;padding:var(--space-6) var(--space-2);color:var(--color-text-muted)}.link-button{margin-left:var(--space-3);padding:var(--space-1) var(--space-2);font-size:12px;background:var(--color-bg-muted);color:var(--color-primary-active)}.admin-content .link-button:not(:disabled):hover{background:var(--color-bg-muted-hover)}.vpn-clients-filters{display:inline-flex;align-items:center;gap:6px;padding:4px;margin-bottom:var(--space-3);border:1px solid var(--color-border-soft);border-radius:var(--radius-md);background:var(--color-bg-surface-muted)}.vpn-clients-filter-btn{margin:0;min-height:30px;padding:6px 12px;border-radius:var(--radius-sm);border:none;background:var(--color-bg-muted);color:var(--color-primary-active);font-size:13px;font-weight:500}.admin-content .vpn-clients-filter-btn:not(:disabled):hover{background:var(--color-bg-muted-hover)}.vpn-clients-filter-btn.active{background:var(--color-dark);color:var(--color-text-inverse)}.admin-content .vpn-clients-filter-btn.active:not(:disabled):hover{background:var(--color-primary-active)}.table-pagination{margin-top:var(--space-3);display:flex;align-items:center;gap:var(--space-2)}.table-pagination-info{color:var(--color-text-muted);font-size:13px}.table-header-toolbar{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);margin-bottom:var(--space-3)}.table-value-badge{display:inline-block;padding:var(--space-1) var(--space-2);font-size:12px;font-weight:600;line-height:1.35;border-radius:var(--radius-md);box-sizing:border-box;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.action-btn{margin:0;display:inline-flex;align-items:center;gap:6px;min-height:30px;padding:6px 10px;border-radius:var(--radius-sm);border:none;color:var(--color-text-inverse)}.action-btn svg{stroke-width:2.2px}.action-btn--primary{background:var(--color-primary)}.admin-content .action-btn--primary:not(:disabled):hover{background:var(--color-primary-hover)}.action-btn--danger{background:var(--color-danger-soft)}.admin-content .action-btn--danger:not(:disabled):hover{background:var(--color-danger-soft-hover)}.broadcast-dropzone{display:grid;place-items:center;gap:var(--space-2);min-height:110px;padding:var(--space-4);border:2px dashed var(--color-border-soft);border-radius:var(--radius-md);cursor:pointer;color:var(--color-text-muted);background:var(--color-bg-surface-muted);text-align:center}.broadcast-toggle{display:flex;align-items:center;justify-content:flex-start;gap:8px;width:100%;padding:8px 10px;border:1px solid var(--color-border-soft);border-radius:var(--radius-md);background:var(--color-bg-surface-muted);cursor:pointer;transition:background-color .15s ease,border-color .15s ease,color .15s ease}.broadcast-toggle input{margin:0;position:absolute;opacity:0;pointer-events:none}.broadcast-toggle.active{color:#166534;background:#dcfce7;border-color:#86efac}.broadcast-image-preview{position:relative;display:grid;place-items:center;border:1px solid var(--color-border-soft);border-radius:var(--radius-md);background:var(--color-bg-surface-muted);padding:var(--space-2)}.broadcast-image-remove{margin:0;position:absolute;top:6px;right:6px;min-height:28px;width:28px;border-radius:999px;padding:0;background:var(--color-danger-soft);color:var(--color-text-inverse);display:grid;place-items:center}.admin-content .broadcast-image-remove:not(:disabled):hover{background:var(--color-danger-soft-hover)}.broadcast-table-image-wrap{width:min(100%,288px);max-width:288px;max-height:192px;min-height:56px;display:grid;place-items:center;border-radius:8px;border:1px solid var(--color-border-soft);background:var(--color-bg-surface-muted);padding:6px;box-sizing:border-box}.broadcast-table-image{width:auto;height:auto;max-width:100%;max-height:180px;object-fit:contain;display:block}.admin-content .modal-close-icon-button:not(:disabled):hover{background:var(--color-bg-muted-hover)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;background:#0f172a73;display:flex;align-items:center;justify-content:center;padding:var(--space-6)}.modal-card{position:relative;z-index:1;width:min(1000px,100%);max-height:80vh;overflow:auto;background:var(--color-bg-surface);border-radius:var(--radius-xl);border:1px solid var(--color-border);padding:var(--space-5)}.modal-card.modal-card--compact{width:min(560px,100%)}.modal-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);margin-bottom:var(--space-4)}.modal-header h3{margin:0}.modal-close-icon-button{width:32px;height:32px;padding:0;border-radius:var(--radius-sm);background:var(--color-bg-muted);color:var(--color-primary-active);display:inline-flex;align-items:center;justify-content:center}.modal-actions{display:flex;justify-content:flex-end;gap:var(--space-2);margin-top:var(--space-2)}.admin-content .tariff-toggle:not(:disabled):hover{background:var(--color-primary-active)}.tariff-list{display:grid;gap:var(--space-4)}.tariff-toolbar{margin-bottom:var(--space-4)}.tariff-item{padding:var(--space-4);border-radius:var(--radius-lg);background:var(--color-bg-surface-muted)}.tariff-item-header{display:flex;align-items:center;gap:var(--space-2)}.tariff-item h4{margin:0 0 var(--space-3) 0}.tariff-toggle{flex:1;text-align:left;background:var(--color-text-secondary);margin-bottom:var(--space-3)}.tariff-item-actions{margin-bottom:var(--space-3);display:flex;justify-content:flex-start}.tariff-device-row{display:flex;align-items:flex-end;gap:var(--space-2)}.tariff-device-row label{flex:1;margin-bottom:var(--space-4)}.tariff-delete-btn{margin-bottom:var(--space-4);background:var(--color-danger-soft)}.admin-content .tariff-delete-btn:not(:disabled):hover{background:var(--color-danger-soft-hover)}.tariff-add-btn{background:var(--color-success)}.admin-content .tariff-add-btn:not(:disabled):hover{background:var(--color-success-hover)}.tariff-modal-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-3)}