:root {
   --app-bg: #f5f7fb;
   --app-surface: #ffffff;
   --app-surface-2: #f8fafc;
   --app-border: #dbe4f0;
   --app-text: #1f2937;
   --app-muted: #64748b;
   --app-primary: #2563eb;
   --app-primary-hover: #1d4ed8;
   --app-primary-soft: rgba(37, 99, 235, 0.12);
   --app-success: #16a34a;
   --app-warning: #d97706;
   --app-danger: #dc2626;
   --app-info: #0ea5e9;
   --app-radius: 16px;
   --app-radius-sm: 12px;
   --app-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
   --app-shadow-sm: 0 4px 14px rgba(15, 23, 42, 0.06);
}

html {
   scroll-behavior: smooth;
}

body {
   min-height: 100vh;
   color: var(--app-text);
   background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.08), transparent 30%), radial-gradient(circle at top right, rgba(14, 165, 233, 0.08), transparent 24%), linear-gradient(180deg, #f8fbff 0%, var(--app-bg) 100%);
   font-family: Inter, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
   line-height: 1.5;
}

/* Layout */
main {
   color: var(--app-text);
}

.container,
.container-fluid {
   position: relative;
}

.section,
.page-section,
.content-section {
   margin-bottom: 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
   color: #0f172a;
   font-weight: 700;
   letter-spacing: -0.02em;
}

.lead,
.text-muted {
   color: var(--app-muted) !important;
}

/* Surfaces */
.card,
.modal-content,
.dropdown-menu,
.offcanvas,
.list-group-item,
.navbar,
.table,
.alert {
   border: 1px solid var(--app-border);
   box-shadow: var(--app-shadow-sm);
}

.card,
.modal-content,
.dropdown-menu,
.offcanvas {
   background: var(--app-surface);
   border-radius: var(--app-radius);
}

.card {
   overflow: hidden;
}

.card-header {
   background: linear-gradient(180deg, #ffffff 0%, var(--app-surface-2) 100%);
   border-bottom: 1px solid var(--app-border);
   padding: 1rem 1.25rem;
}

.card-body {
   padding: 1.25rem;
}

.card-footer {
   background: var(--app-surface-2);
   border-top: 1px solid var(--app-border);
}

/* Navbar */
.navbar {
   background: rgba(255, 255, 255, 0.82) !important;
   backdrop-filter: blur(14px);
   -webkit-backdrop-filter: blur(14px);
}

   .navbar .navbar-brand {
      font-weight: 800;
      letter-spacing: -0.03em;
      color: #0f172a;
   }

   .navbar .nav-link {
      color: var(--app-muted);
      border-radius: 999px;
      padding: 0.55rem 0.9rem;
      transition: all 0.2s ease;
   }

      .navbar .nav-link:hover,
      .navbar .nav-link:focus,
      .navbar .nav-link.active {
         color: var(--app-primary);
         background: var(--app-primary-soft);
      }

/* Sidebar / nav lists */
.app-sidebar {
   background: rgba(255, 255, 255, 0.88);
   border-right: 1px solid var(--app-border);
   backdrop-filter: blur(14px);
   -webkit-backdrop-filter: blur(14px);
}

.nav-pills .nav-link {
   color: var(--app-muted);
   border-radius: 12px;
   padding: 0.7rem 0.95rem;
   transition: all 0.2s ease;
}

   .nav-pills .nav-link:hover {
      color: var(--app-primary);
      background: rgba(37, 99, 235, 0.08);
   }

   .nav-pills .nav-link.active {
      color: #fff;
      background: linear-gradient(135deg, var(--app-primary), #4f46e5);
      box-shadow: 0 8px 18px rgba(37, 99, 235, 0.25);
   }

/* Buttons */
.btn {
   border-radius: 12px;
   font-weight: 600;
   padding: 0.7rem 1rem;
   transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

   .btn:hover {
      transform: translateY(-1px);
   }

.btn-primary {
   background: linear-gradient(135deg, var(--app-primary), #4f46e5);
   border-color: transparent;
   box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
}

   .btn-primary:hover,
   .btn-primary:focus {
      background: linear-gradient(135deg, var(--app-primary-hover), #4338ca);
      border-color: transparent;
   }

.btn-outline-primary {
   color: var(--app-primary);
   border-color: rgba(37, 99, 235, 0.35);
   background: #fff;
}

   .btn-outline-primary:hover {
      background: var(--app-primary);
      border-color: var(--app-primary);
   }

.btn-success {
   background: linear-gradient(135deg, #16a34a, #22c55e);
   border-color: transparent;
}

.btn-warning {
   color: #111827;
   background: linear-gradient(135deg, #f59e0b, #fbbf24);
   border-color: transparent;
}

.btn-danger {
   background: linear-gradient(135deg, #dc2626, #ef4444);
   border-color: transparent;
}

.btn-light {
   background: #fff;
   border-color: var(--app-border);
}

.btn-icon {
   width: 42px;
   height: 42px;
   display: inline-flex;
   align-items: center;
   justify-content: center;
   padding: 0;
   border-radius: 12px;
}

/* Forms */
.form-control,
.form-select,
.input-group-text {
   border-color: var(--app-border);
   border-radius: 12px;
   background-color: #fff;
   color: var(--app-text);
}

.form-control,
.form-select {
   padding: 0.78rem 0.95rem;
   box-shadow: none !important;
}

   .form-control:focus,
   .form-select:focus {
      border-color: rgba(37, 99, 235, 0.6);
      box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.12) !important;
   }

.input-group-text {
   background: var(--app-surface-2);
   color: var(--app-muted);
}

.form-label {
   font-weight: 600;
   color: #334155;
   margin-bottom: 0.45rem;
}

.form-text {
   color: var(--app-muted);
}

/* Tables */
.table {
   color: var(--app-text);
   background: #fff;
   border-radius: var(--app-radius);
   overflow: hidden;
}

   .table > :not(caption) > * > * {
      padding: 0.9rem 1rem;
      border-bottom-color: #e7edf6;
      vertical-align: middle;
   }

   .table thead th {
      background: #f8fafc;
      color: #334155;
      font-size: 0.875rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.04em;
      border-bottom: 1px solid var(--app-border);
   }

.table-hover tbody tr:hover {
   background: rgba(37, 99, 235, 0.04);
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
   background-color: #fbfdff;
}

/* Badges */
.badge {
   border-radius: 999px;
   padding: 0.45em 0.75em;
   font-weight: 700;
}

.bg-primary {
   background: linear-gradient(135deg, var(--app-primary), #4f46e5) !important;
}

.bg-success {
   background: linear-gradient(135deg, #16a34a, #22c55e) !important;
}

.bg-warning {
   background: linear-gradient(135deg, #f59e0b, #fbbf24) !important;
   color: #111827 !important;
}

.bg-danger {
   background: linear-gradient(135deg, #dc2626, #ef4444) !important;
}

.bg-info {
   background: linear-gradient(135deg, var(--app-info), #38bdf8) !important;
}

/* Alerts */
.alert {
   border-radius: 14px;
   padding: 1rem 1.1rem;
}

.alert-primary {
   background: rgba(37, 99, 235, 0.08);
   color: #1e40af;
   border-color: rgba(37, 99, 235, 0.16);
}

.alert-success {
   background: rgba(22, 163, 74, 0.08);
   color: #166534;
   border-color: rgba(22, 163, 74, 0.16);
}

.alert-warning {
   background: rgba(217, 119, 6, 0.08);
   color: #92400e;
   border-color: rgba(217, 119, 6, 0.16);
}

.alert-danger {
   background: rgba(220, 38, 38, 0.08);
   color: #991b1b;
   border-color: rgba(220, 38, 38, 0.16);
}

/* Product / CRM cards */
.metric-card,
.kpi-card,
.product-card {
   background: linear-gradient(180deg, #ffffff 0%, #fbfcfe 100%);
   border: 1px solid var(--app-border);
   border-radius: var(--app-radius);
   box-shadow: var(--app-shadow-sm);
}

.metric-card {
   padding: 1.15rem;
}

.metric-value {
   font-size: 1.8rem;
   font-weight: 800;
   letter-spacing: -0.03em;
   color: #0f172a;
}

.metric-label {
   color: var(--app-muted);
   font-size: 0.925rem;
}

.product-card img,
.card-img-top {
   object-fit: cover;
   border-bottom: 1px solid var(--app-border);
}

/* Tabs */
.nav-tabs {
   border-bottom: 1px solid var(--app-border);
}

   .nav-tabs .nav-link {
      border: 0;
      color: var(--app-muted);
      border-bottom: 2px solid transparent;
      border-radius: 0;
      font-weight: 600;
      padding: 0.8rem 1rem;
   }

      .nav-tabs .nav-link:hover {
         color: var(--app-primary);
         border-color: transparent;
      }

      .nav-tabs .nav-link.active {
         color: var(--app-primary);
         background: transparent;
         border-bottom-color: var(--app-primary);
      }

/* Dropdowns */
.dropdown-menu {
   padding: 0.5rem;
   border-radius: 14px;
}

.dropdown-item {
   border-radius: 10px;
   padding: 0.65rem 0.9rem;
}

   .dropdown-item:hover,
   .dropdown-item:focus {
      background: rgba(37, 99, 235, 0.08);
      color: var(--app-primary);
   }

/* Links */
a {
   color: var(--app-primary);
   text-decoration: none;
}

   a:hover {
      color: var(--app-primary-hover);
   }

/* Utilities */
.shadow-soft {
   box-shadow: var(--app-shadow);
}

.rounded-xl {
   border-radius: var(--app-radius) !important;
}

.border-soft {
   border-color: var(--app-border) !important;
}

.text-soft {
   color: var(--app-muted) !important;
}

/* Blazor specific */
#blazor-error-ui {
   background: #fff;
   bottom: 0;
   box-shadow: 0 -2px 10px rgba(15, 23, 42, 0.12);
   display: none;
   left: 0;
   padding: 0.75rem 1rem;
   position: fixed;
   width: 100%;
   z-index: 1000;
   border-top: 1px solid var(--app-border);
}

/* Scrollbar */
::-webkit-scrollbar {
   width: 10px;
   height: 10px;
}

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

::-webkit-scrollbar-thumb {
   background: rgba(100, 116, 139, 0.35);
   border-radius: 999px;
   border: 2px solid transparent;
   background-clip: content-box;
}

   ::-webkit-scrollbar-thumb:hover {
      background: rgba(37, 99, 235, 0.45);
      border: 2px solid transparent;
      background-clip: content-box;
   }

/* Responsive refinements */
@media (max-width: 768px) {
   .card-body,
   .card-header,
   .card-footer {
      padding: 1rem;
   }

   .btn {
      width: 100%;
   }

   .navbar .nav-link {
      margin-top: 0.25rem;
   }
}

/* Blazor Bootstrap Sidebar2 - undo navbar override */
.bb-sidebar2-top-row.navbar {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
    border: none !important;
}