*,
  *::before,
  *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0
  }

  html {
      scroll-behavior: smooth
  }

  body {
      font-family: 'Inter', sans-serif;
      background: #f8f9fb;
      color: #1e293b;
      overflow-x: hidden;
      transition: background .3s, color .3s
  }

  .dark body,
  .dark {
      background: #0f1117;
      color: #e2e8f0
  }

  ::-webkit-scrollbar {
      width: 5px;
      height: 5px
  }

  ::-webkit-scrollbar-track {
      background: transparent
  }

  ::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 99px
  }

  .dark ::-webkit-scrollbar-thumb {
      background: #334155
  }

  #sidebar {
      width: 260px;
      transition: width .3s cubic-bezier(.4, 0, .2, 1), transform .3s cubic-bezier(.4, 0, .2, 1);
      background: #fff;
      border-right: 1px solid #f1f5f9
  }

  .dark #sidebar {
      background: #141920;
      border-right-color: #1e2736
  }

  #sidebar.collapsed {
      width: 72px
  }

  #sidebar.collapsed .sidebar-label,
  #sidebar.collapsed .sidebar-group-label,
  #sidebar.collapsed .sidebar-badge,
  #sidebar.collapsed .brand-text {
      display: none !important
  }

  #sidebar.collapsed .sidebar-item {
      justify-content: center;
      padding-left: 0;
      padding-right: 0
  }

  #sidebar.collapsed .sidebar-icon {
      margin-right: 0
  }

  #sidebar-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, .45);
      z-index: 39;
      backdrop-filter: blur(2px)
  }

  #sidebar-overlay.active {
      display: block
  }

  @media(max-width:1023px) {
      #sidebar {
          position: fixed;
          top: 0;
          left: 0;
          bottom: 0;
          z-index: 40;
          transform: translateX(-100%);
          width: 260px !important
      }

      #sidebar.mobile-open {
          transform: translateX(0)
      }

      #sidebar.collapsed {
          width: 260px !important
      }

      #sidebar.collapsed .sidebar-label,
      #sidebar.collapsed .sidebar-group-label,
      #sidebar.collapsed .sidebar-badge,
      #sidebar.collapsed .brand-text {
          display: flex !important
      }

      #sidebar.collapsed .sidebar-item {
          justify-content: flex-start;
          padding-left: 1rem;
          padding-right: 1rem
      }

      #sidebar.collapsed .sidebar-icon {
          margin-right: .75rem
      }
  }

  .sidebar-item {
      display: flex;
      align-items: center;
      padding: .55rem 1rem;
      margin: 1px .5rem;
      border-radius: 10px;
      cursor: pointer;
      transition: background .18s, color .18s;
      position: relative;
      gap: .65rem;
      font-size: .875rem;
      font-weight: 500;
      color: #64748b;
      text-decoration: none;
      white-space: nowrap
  }

  .sidebar-item:hover {
      background: #fff7ed;
      color: #f97316
  }

  .dark .sidebar-item:hover {
      background: #1e2736;
      color: #fb923c
  }

  .sidebar-item.active {
      background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
      color: #f97316;
      font-weight: 600
  }

  .dark .sidebar-item.active {
      background: linear-gradient(135deg, #1e2736 0%, #1e2030 100%);
      color: #fb923c
  }

  .sidebar-item.active::before {
      content: '';
      position: absolute;
      left: -.5rem;
      top: 50%;
      transform: translateY(-50%);
      width: 3px;
      height: 60%;
      background: #f97316;
      border-radius: 0 3px 3px 0
  }

  .sidebar-icon {
      width: 20px;
      height: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: .95rem;
      flex-shrink: 0
  }

  .sidebar-badge {
      margin-left: auto;
      background: #f97316;
      color: #fff;
      font-size: .65rem;
      font-weight: 700;
      padding: 1px 6px;
      border-radius: 99px;
      line-height: 1.4
  }

  .sidebar-group-label {
      font-size: .65rem;
      font-weight: 700;
      letter-spacing: .08em;
      text-transform: uppercase;
      color: #94a3b8;
      padding: 1rem 1.5rem .35rem
  }

  #sidebar-nav {
      overflow-y: auto;
      overflow-x: hidden;
      flex: 1
  }

  #navbar {
      background: rgba(255, 255, 255, .85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid #f1f5f9;
      position: sticky;
      top: 0;
      z-index: 30;
      height: 64px
  }

  .dark #navbar {
      background: rgba(20, 25, 32, .9);
      border-bottom-color: #1e2736
  }

  .card {
      background: #fff;
      border-radius: 16px;
      border: 1px solid #f1f5f9;
      box-shadow: 0 1px 3px 0 rgba(0, 0, 0, .04), 0 1px 2px -1px rgba(0, 0, 0, .04);
      transition: box-shadow .2s, transform .2s, border-color .2s
  }

  .dark .card {
      background: #141920;
      border-color: #1e2736
  }

  .stat-icon-orange {
      background: linear-gradient(135deg, #fff7ed, #ffedd5);
      color: #f97316
  }

  .stat-icon-emerald {
      background: linear-gradient(135deg, #ecfdf5, #d1fae5);
      color: #10b981
  }

  .stat-icon-sky {
      background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
      color: #0ea5e9
  }

  .stat-icon-violet {
      background: linear-gradient(135deg, #f5f3ff, #ede9fe);
      color: #8b5cf6
  }

  .stat-icon-rose {
      background: linear-gradient(135deg, #fff1f2, #ffe4e6);
      color: #f43f5e
  }

  .stat-icon-amber {
      background: linear-gradient(135deg, #fffbeb, #fef3c7);
      color: #f59e0b
  }

  .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: .4rem;
      padding: .5rem 1.1rem;
      border-radius: 10px;
      font-size: .845rem;
      font-weight: 600;
      cursor: pointer;
      transition: all .18s;
      border: none;
      outline: none;
      white-space: nowrap;
      position: relative;
      overflow: hidden
  }

  .btn:focus-visible {
      outline: 2px solid #f97316;
      outline-offset: 2px
  }

  .btn-primary {
      background: linear-gradient(135deg, #f97316, #ea580c);
      color: #fff;
      box-shadow: 0 2px 8px rgba(249, 115, 22, .3)
  }

  .btn-primary:hover {
      background: linear-gradient(135deg, #ea580c, #c2410c);
      box-shadow: 0 4px 14px rgba(249, 115, 22, .4);
      transform: translateY(-1px)
  }

  .btn-secondary {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      color: #475569
  }

  .dark .btn-secondary {
      background: #1e2736;
      border-color: #2d3748;
      color: #94a3b8
  }

  .btn-secondary:hover {
      background: #f1f5f9;
      border-color: #cbd5e1;
      color: #334155
  }

  .btn-ghost {
      background: transparent;
      color: #64748b
  }

  .btn-ghost:hover {
      background: #f8fafc;
      color: #1e293b
  }

  .dark .btn-ghost:hover {
      background: #1e2736;
      color: #e2e8f0
  }

  .btn-sm {
      padding: .35rem .75rem;
      font-size: .78rem;
      border-radius: 8px
  }

  .btn-icon {
      padding: .5rem;
      border-radius: 10px
  }

  .btn-outline-primary {
      background: transparent;
      border: 1.5px solid #f97316;
      color: #f97316
  }

  .btn-outline-primary:hover {
      background: #fff7ed
  }

  .dark .btn-outline-primary:hover {
      background: rgba(249, 115, 22, .1)
  }

  .badge {
      display: inline-flex;
      align-items: center;
      gap: .25rem;
      padding: .2rem .6rem;
      border-radius: 99px;
      font-size: .72rem;
      font-weight: 600
  }

  .badge-orange {
      background: #fff7ed;
      color: #ea580c
  }

  .badge-emerald {
      background: #ecfdf5;
      color: #059669
  }

  .badge-rose {
      background: #fff1f2;
      color: #e11d48
  }

  .badge-sky {
      background: #f0f9ff;
      color: #0284c7
  }

  .badge-amber {
      background: #fffbeb;
      color: #d97706
  }

  .badge-slate {
      background: #f8fafc;
      color: #475569
  }

  .badge-violet {
      background: #f5f3ff;
      color: #7c3aed
  }

  .dark .badge-orange {
      background: #431407;
      color: #fb923c
  }

  .dark .badge-emerald {
      background: #022c22;
      color: #34d399
  }

  .dark .badge-rose {
      background: #4c0519;
      color: #fb7185
  }

  .dark .badge-sky {
      background: #082f49;
      color: #38bdf8
  }

  .dark .badge-amber {
      background: #451a03;
      color: #fbbf24
  }

  .dark .badge-slate {
      background: #1e2736;
      color: #94a3b8
  }

  .dark .badge-violet {
      background: #2e1065;
      color: #a78bfa
  }

  .dot {
      display: inline-block;
      width: 7px;
      height: 7px;
      border-radius: 50%
  }

  .dot-green {
      background: #10b981
  }

  .dot-red {
      background: #f43f5e
  }

  .dot-amber {
      background: #f59e0b
  }

  .dot-gray {
      background: #94a3b8
  }

  @keyframes livePulse {

      0%,
      100% {
          box-shadow: 0 0 0 0 rgba(16, 185, 129, .4)
      }

      50% {
          box-shadow: 0 0 0 6px rgba(16, 185, 129, 0)
      }
  }

  .live-dot {
      animation: livePulse 1.5s ease-in-out infinite
  }

  .data-table th {
      font-size: .72rem;
      font-weight: 700;
      letter-spacing: .05em;
      text-transform: uppercase;
      color: #94a3b8;
      padding: .85rem 1rem;
      background: #f8fafc;
      border-bottom: 1px solid #f1f5f9;
      white-space: nowrap
  }

  .dark .data-table th {
      background: #0f1420;
      border-color: #1e2736;
      color: #64748b
  }

  .data-table td {
      padding: .9rem 1rem;
      border-bottom: 1px solid #f8fafc;
      font-size: .845rem;
      vertical-align: middle;
      color: #475569
  }

  .dark .data-table td {
      border-color: #1a2232;
      color: #94a3b8
  }

  .data-table tr:hover td {
      background: #fafbff
  }

  .dark .data-table tr:hover td {
      background: #0f1420
  }

  .data-table tr:last-child td {
      border-bottom: none
  }

  .table-wrap {
      overflow-x: auto
  }

  .progress-bar {
      height: 6px;
      border-radius: 99px;
      background: #f1f5f9;
      overflow: hidden
  }

  .dark .progress-bar {
      background: #1e2736
  }

  .progress-fill {
      height: 100%;
      border-radius: 99px;
      transition: width 1s ease
  }

  .dropdown-menu {
      position: absolute;
      right: 0;
      top: calc(100% + 6px);
      background: #fff;
      border: 1px solid #f1f5f9;
      border-radius: 14px;
      box-shadow: 0 20px 40px -8px rgba(0, 0, 0, .12);
      z-index: 50;
      min-width: 220px;
      animation: slideDown .18s ease-out;
      overflow: hidden
  }

  .dark .dropdown-menu {
      background: #141920;
      border-color: #1e2736
  }

  .dropdown-item {
      display: flex;
      align-items: center;
      gap: .65rem;
      padding: .65rem 1rem;
      font-size: .845rem;
      color: #475569;
      cursor: pointer;
      transition: background .15s, color .15s
  }

  .dark .dropdown-item {
      color: #94a3b8
  }

  .dropdown-item:hover {
      background: #f8fafc;
      color: #1e293b
  }

  .dark .dropdown-item:hover {
      background: #1a2232;
      color: #e2e8f0
  }

  .dropdown-divider {
      border-top: 1px solid #f1f5f9;
      margin: 4px 0
  }

  .dark .dropdown-divider {
      border-color: #1e2736
  }

  #toast-container {
      position: fixed;
      bottom: 1.5rem;
      right: 1.5rem;
      z-index: 9999;
      display: flex;
      flex-direction: column;
      gap: .5rem
  }

  .toast {
      display: flex;
      align-items: center;
      gap: .75rem;
      padding: .85rem 1.1rem;
      background: #fff;
      border: 1px solid #f1f5f9;
      border-radius: 12px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, .12);
      min-width: 280px;
      max-width: 360px;
      animation: fadeIn .3s ease-out;
      font-size: .845rem;
      font-weight: 500
  }

  .dark .toast {
      background: #141920;
      border-color: #1e2736;
      color: #e2e8f0
  }

  .form-input {
      width: 100%;
      padding: .6rem 1rem;
      border: 1.5px solid #e2e8f0;
      border-radius: 10px;
      font-size: .875rem;
      background: #fff;
      color: #1e293b;
      outline: none;
      transition: border-color .2s, box-shadow .2s
  }

  .dark .form-input {
      background: #0f1420;
      border-color: #1e2736;
      color: #e2e8f0
  }

  .form-input:focus {
      border-color: #f97316;
      box-shadow: 0 0 0 3px rgba(249, 115, 22, .12)
  }

  [data-tooltip] {
      position: relative
  }

  [data-tooltip]::after {
      content: attr(data-tooltip);
      position: absolute;
      bottom: calc(100% + 6px);
      left: 50%;
      transform: translateX(-50%);
      background: #1e293b;
      color: #fff;
      font-size: .72rem;
      font-weight: 500;
      padding: 4px 8px;
      border-radius: 6px;
      white-space: nowrap;
      opacity: 0;
      pointer-events: none;
      transition: opacity .2s;
      z-index: 99
  }

  [data-tooltip]:hover::after {
      opacity: 1
  }

  * {
      transition-property: background-color, border-color, color, fill, stroke;
      transition-duration: .2s;
      transition-timing-function: ease
  }

  @keyframes fadeIn {
      from {
          opacity: 0;
          transform: translateY(8px)
      }

      to {
          opacity: 1;
          transform: translateY(0)
      }
  }

  @keyframes slideDown {
      from {
          opacity: 0;
          transform: translateY(-8px)
      }

      to {
          opacity: 1;
          transform: translateY(0)
      }
  }

  /* Tab pills */
  .tab-pills {
      display: inline-flex;
      background: #f1f5f9;
      padding: 3px;
      border-radius: 10px
  }

  .dark .tab-pills {
      background: #1e2736
  }

  .tab-pill {
      padding: .4rem .85rem;
      font-size: .72rem;
      font-weight: 600;
      color: #64748b;
      background: transparent;
      border: none;
      cursor: pointer;
      transition: all .2s;
      border-radius: 7px
  }

  .dark .tab-pill {
      color: #94a3b8
  }

  .tab-pill.active {
      background: #fff;
      color: #f97316;
      box-shadow: 0 1px 3px rgba(0, 0, 0, .08)
  }

  .dark .tab-pill.active {
      background: #141920;
      color: #fb923c
  }

  /* Big KPI Card */
  .kpi-card {
      position: relative;
      overflow: hidden
  }

  .kpi-card::before {
      content: '';
      position: absolute;
      top: -40px;
      right: -40px;
      width: 140px;
      height: 140px;
      border-radius: 50%;
      opacity: .08
  }

  .kpi-orange::before {
      background: #f97316
  }

  .kpi-emerald::before {
      background: #10b981
  }

  .kpi-sky::before {
      background: #0ea5e9
  }

  .kpi-violet::before {
      background: #8b5cf6
  }

  .kpi-amber::before {
      background: #f59e0b
  }

  .kpi-rose::before {
      background: #f43f5e
  }

  /* Highlight card */
  .gradient-card-orange {
      background: linear-gradient(135deg, #f97316 0%, #ea580c 50%, #c2410c 100%);
      color: #fff;
      position: relative;
      overflow: hidden
  }

  .gradient-card-orange::before {
      content: '';
      position: absolute;
      top: -40px;
      right: -40px;
      width: 180px;
      height: 180px;
      background: radial-gradient(circle, rgba(255, 255, 255, .2) 0%, transparent 70%);
      border-radius: 50%
  }

  .gradient-card-orange::after {
      content: '';
      position: absolute;
      bottom: -30px;
      left: 20%;
      width: 120px;
      height: 120px;
      background: radial-gradient(circle, rgba(255, 255, 255, .15) 0%, transparent 70%);
      border-radius: 50%
  }

  /* Metric bar */
  .metric-item {
      padding: .75rem;
      border-radius: 10px;
      background: #f8fafc;
      border: 1px solid transparent;
      transition: all .18s;
      cursor: pointer
  }

  .dark .metric-item {
      background: #0f1420
  }

  .metric-item:hover {
      border-color: #fed7aa;
      background: #fff7ed
  }

  .dark .metric-item:hover {
      border-color: #7c2d12;
      background: rgba(249, 115, 22, .06)
  }

  /* Ranking pill */
  .rank-pill {
      width: 26px;
      height: 26px;
      border-radius: 8px;
      font-size: .7rem;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0
  }

  .rank-1 {
      background: linear-gradient(135deg, #fbbf24, #f59e0b);
      color: #fff
  }

  .rank-2 {
      background: linear-gradient(135deg, #e2e8f0, #94a3b8);
      color: #fff
  }

  .rank-3 {
      background: linear-gradient(135deg, #fed7aa, #fb923c);
      color: #fff
  }

  .rank-other {
      background: #f1f5f9;
      color: #64748b
  }

  .dark .rank-other {
      background: #1e2736;
      color: #94a3b8
  }

  /* Comparison arrow */
  .trend-up {
      color: #10b981;
      font-weight: 700
  }

  .trend-down {
      color: #f43f5e;
      font-weight: 700
  }

  /* Segment card */
  .segment-card {
      padding: 1rem;
      border-radius: 14px;
      position: relative;
      overflow: hidden;
      color: #fff
  }

  .seg-new {
      background: linear-gradient(135deg, #8b5cf6, #7c3aed)
  }

  .seg-returning {
      background: linear-gradient(135deg, #10b981, #059669)
  }

  .seg-vip {
      background: linear-gradient(135deg, #f59e0b, #d97706)
  }

  .seg-churn {
      background: linear-gradient(135deg, #f43f5e, #e11d48)
  }

  .segment-card::before {
      content: '';
      position: absolute;
      top: -30px;
      right: -30px;
      width: 100px;
      height: 100px;
      background: radial-gradient(circle, rgba(255, 255, 255, .2) 0%, transparent 70%);
      border-radius: 50%
  }

  /* Funnel step */
  .funnel-step {
      display: flex;
      align-items: center;
      gap: 1rem;
      padding: .85rem 1rem;
      border-radius: 12px;
      background: #f8fafc;
      border-left: 4px solid;
      position: relative;
      transition: all .2s
  }

  .dark .funnel-step {
      background: #0f1420
  }

  .funnel-step:hover {
      transform: translateX(2px)
  }

  .funnel-num {
      width: 32px;
      height: 32px;
      border-radius: 10px;
      background: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: .85rem;
      flex-shrink: 0;
      box-shadow: 0 2px 6px rgba(0, 0, 0, .05)
  }

  .dark .funnel-num {
      background: #141920
  }

  /* Live indicator */
  .live-indicator {
      display: inline-flex;
      align-items: center;
      gap: .35rem;
      padding: .25rem .55rem;
      background: linear-gradient(135deg, #10b981, #059669);
      color: #fff;
      font-size: .65rem;
      font-weight: 700;
      border-radius: 99px;
      text-transform: uppercase;
      letter-spacing: .05em
  }

  /* Heatmap cell */
  .heat-cell {
      aspect-ratio: 1;
      border-radius: 4px;
      transition: transform .15s;
      cursor: pointer
  }

  .heat-cell:hover {
      transform: scale(1.2);
      z-index: 5;
      position: relative
  }

  /* Cohort table */
  .cohort-cell {
      text-align: center;
      padding: 6px 4px;
      font-size: .7rem;
      font-weight: 600;
      border-radius: 4px;
      color: #fff
  }

  /* Chart controls */
  .chart-tabs {
      display: inline-flex;
      background: transparent;
      gap: 2px
  }

  .chart-tab {
      padding: .35rem .7rem;
      font-size: .7rem;
      font-weight: 600;
      color: #94a3b8;
      background: transparent;
      border: none;
      cursor: pointer;
      transition: all .18s;
      border-radius: 6px
  }

  .chart-tab:hover {
      color: #f97316
  }

  .chart-tab.active {
      background: #fff7ed;
      color: #f97316
  }

  .dark .chart-tab.active {
      background: rgba(249, 115, 22, .15);
      color: #fb923c
  }

  /* Mini spark */
  .mini-spark {
      height: 40px;
      margin-top: 8px
  }

  /* Insight banner */
  .insight-banner {
      background: linear-gradient(135deg, #f0f9ff 0%, #ede9fe 100%);
      border: 1px solid #ddd6fe;
      border-radius: 14px;
      padding: .85rem 1rem;
      display: flex;
      align-items: center;
      gap: .75rem
  }

  .dark .insight-banner {
      background: linear-gradient(135deg, rgba(14, 165, 233, .08) 0%, rgba(139, 92, 246, .08) 100%);
      border-color: rgba(139, 92, 246, .2)
  }