/**
 * 3rrdEye Distribution & Sales Management Portal
 * Brand Design System - Light Theme
 * Azeosys Technologies
 */

:root {
  /* Brand Color Palette */
  --portal-navy: #14263D;
  --portal-navy-rgb: 20, 38, 61;
  --portal-navy-light: #1E3A5F;
  --portal-blue: #2563EB;
  --portal-blue-rgb: 37, 99, 235;
  --portal-blue-hover: #1D4ED8;
  --portal-blue-subtle: #EFF6FF;

  --portal-bg: #F8FAFC;
  --portal-card-bg: #FFFFFF;
  --portal-card-hover: #F1F5F9;

  --portal-text-primary: #172033;
  --portal-text-secondary: #64748B;
  --portal-text-muted: #94A3B8;

  --portal-success: #16A34A;
  --portal-success-bg: #F0FDF4;
  --portal-success-border: #BBF7D0;

  --portal-warning: #D97706;
  --portal-warning-bg: #FFFBEB;
  --portal-warning-border: #FDE68A;

  --portal-danger: #DC2626;
  --portal-danger-bg: #FEF2F2;
  --portal-danger-border: #FECACA;

  --portal-info: #0284C7;
  --portal-info-bg: #F0F9FF;
  --portal-info-border: #BAE6FD;

  --portal-border: #E2E8F0;
  --portal-border-subtle: #F1F5F9;

  /* Typography & Geometry */
  --portal-font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --portal-radius-sm: 6px;
  --portal-radius-md: 10px;
  --portal-radius-lg: 14px;
  --portal-radius-xl: 18px;

  /* Shadows */
  --portal-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --portal-shadow: 0 1px 3px 0 rgba(16, 24, 40, 0.08), 0 1px 2px -1px rgba(16, 24, 40, 0.08);
  --portal-shadow-md: 0 4px 6px -1px rgba(16, 24, 40, 0.08), 0 2px 4px -2px rgba(16, 24, 40, 0.06);
  --portal-shadow-lg: 0 10px 15px -3px rgba(16, 24, 40, 0.08), 0 4px 6px -4px rgba(16, 24, 40, 0.04);

  /* Layout dimensions */
  --portal-sidebar-width: 260px;
  --portal-topbar-height: 64px;
  --portal-mobile-bottom-height: 60px;
}

/* Base resets & typography */
html, body {
  margin: 0;
  padding: 0;
  background-color: var(--portal-bg);
  color: var(--portal-text-primary);
  font-family: var(--portal-font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Scrollbar refinement */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: #F1F5F9;
}
::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94A3B8;
}

/* Layout Architecture */
.portal-app-wrapper {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

/* Sidebar Styling */
.portal-sidebar {
  width: var(--portal-sidebar-width);
  max-width: var(--portal-sidebar-width);
  background-color: var(--portal-navy);
  color: #FFFFFF;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease-in-out, width 0.25s ease-in-out;
  z-index: 1040;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  overflow-x: hidden;
  box-sizing: border-box;
}

.portal-sidebar-header {
  height: var(--portal-topbar-height);
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.portal-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: #FFFFFF;
}

.portal-brand-logo {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--portal-blue), #3B82F6);
  border-radius: var(--portal-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.3);
}

.portal-brand-text {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #FFFFFF;
  white-space: nowrap;
}

.portal-brand-badge {
  font-size: 0.65rem;
  font-weight: 600;
  background-color: rgba(37, 99, 235, 0.25);
  color: #93C5FD;
  padding: 0.15rem 0.4rem;
  border-radius: var(--portal-radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.portal-sidebar-nav {
  flex: 1;
  padding: 1rem 0.75rem;
  overflow-y: auto;
  list-style: none;
  margin: 0;
}

.portal-nav-section-title {
  color: #94A3B8;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem 0.75rem 0.35rem;
  margin-top: 0.5rem;
}

.portal-nav-item {
  margin-bottom: 0.2rem;
}

.portal-nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.75rem;
  color: #CBD5E1;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--portal-radius-md);
  transition: all 0.15s ease-in-out;
}

.portal-nav-link i {
  font-size: 1.15rem;
  color: #94A3B8;
  transition: color 0.15s ease-in-out;
}

.portal-nav-link:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
}

.portal-nav-link:hover i {
  color: #60A5FA;
}

.portal-nav-link.active {
  background-color: var(--portal-blue);
  color: #FFFFFF;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.35);
}

.portal-nav-link.active i {
  color: #FFFFFF;
}

/* Sidebar Dropdown & Submenu Enhancements */
.portal-nav-dropdown-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.55rem 0.75rem;
  color: #CBD5E1;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--portal-radius-md);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  text-align: left;
}

.portal-nav-dropdown-toggle:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
}

.portal-nav-dropdown-toggle:hover i.portal-nav-icon {
  color: #60A5FA;
}

.portal-nav-dropdown-toggle.has-active-child {
  color: #FFFFFF;
  background-color: rgba(37, 99, 235, 0.15);
  border-left: 3px solid #3B82F6;
}

.portal-nav-dropdown-toggle.has-active-child i.portal-nav-icon {
  color: #60A5FA;
}

.portal-nav-arrow {
  font-size: 0.75rem;
  color: #64748B;
  transition: transform 0.25s ease-in-out, color 0.2s ease;
  margin-left: auto;
}

.portal-nav-dropdown-toggle[aria-expanded="true"] .portal-nav-arrow {
  transform: rotate(180deg);
  color: #93C5FD;
}

.portal-nav-dropdown-toggle[aria-expanded="true"] {
  color: #FFFFFF;
}

.portal-nav-submenu {
  list-style: none;
  margin: 0.25rem 0 0.4rem 1.15rem;
  padding: 0.2rem 0 0.2rem 0.65rem;
  border-left: 2px solid rgba(255, 255, 255, 0.12);
}

.portal-submenu-item {
  margin-bottom: 0.15rem;
}

.portal-submenu-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.38rem 0.65rem;
  color: #94A3B8;
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: var(--portal-radius-sm);
  transition: all 0.15s ease-in-out;
}

.portal-submenu-link::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: #64748B;
  transition: background-color 0.15s ease;
  flex-shrink: 0;
}

.portal-submenu-link:hover {
  color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.06);
}

.portal-submenu-link:hover::before {
  background-color: #60A5FA;
}

.portal-submenu-link.active {
  color: #FFFFFF;
  background-color: rgba(37, 99, 235, 0.28);
  font-weight: 600;
}

.portal-submenu-link.active::before {
  background-color: #3B82F6;
  box-shadow: 0 0 6px #3B82F6;
}

.portal-sidebar-collapse-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #CBD5E1;
  width: 28px;
  height: 28px;
  border-radius: var(--portal-radius-md, 8px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.85rem;
  padding: 0;
  flex-shrink: 0;
}

.portal-sidebar-collapse-btn:hover {
  background: rgba(37, 99, 235, 0.35);
  color: #FFFFFF;
  border-color: #3B82F6;
  transform: scale(1.05);
}

.portal-sidebar-footer {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 0.75rem 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.75rem;
  color: #94A3B8;
  overflow: hidden;
  background-color: var(--portal-navy);
}

.portal-sidebar-footer * {
  box-sizing: border-box;
}

/* Main Content Area */
.portal-main-area {
  flex: 1;
  margin-left: var(--portal-sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--portal-bg);
  transition: margin-left 0.25s ease-in-out;
}

/* Desktop Sidebar Collapse */
@media (min-width: 992px) {
  body.portal-sidebar-collapsed .portal-sidebar {
    transform: translateX(-100%);
  }

  body.portal-sidebar-collapsed .portal-main-area {
    margin-left: 0 !important;
  }
}

/* Topbar Styling */
.portal-topbar {
  height: var(--portal-topbar-height);
  background-color: var(--portal-card-bg);
  border-bottom: 1px solid var(--portal-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 1020;
}

.portal-topbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.portal-topbar-right {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.portal-btn-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--portal-radius-md);
  border: 1px solid var(--portal-border);
  background-color: #FFFFFF;
  color: var(--portal-text-secondary);
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  position: relative;
}

.portal-btn-icon:hover {
  background-color: var(--portal-bg);
  color: var(--portal-text-primary);
  border-color: #CBD5E1;
}

.portal-badge-dot {
  position: absolute;
  top: 7px;
  right: 7px;
  width: 8px;
  height: 8px;
  background-color: var(--portal-danger);
  border-radius: 50%;
  border: 2px solid #FFFFFF;
}

.portal-user-profile {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.35rem 0.65rem;
  border-radius: var(--portal-radius-md);
  border: 1px solid var(--portal-border);
  background-color: #FFFFFF;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s;
}

.portal-user-profile:hover {
  background-color: var(--portal-bg);
}

.portal-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--portal-navy), var(--portal-navy-light));
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
}

.portal-user-info {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.portal-user-name {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--portal-text-primary);
}

.portal-user-role {
  font-size: 0.7rem;
  color: var(--portal-text-secondary);
}

/* Breadcrumb Styling */
.portal-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.825rem;
  color: var(--portal-text-secondary);
  margin: 0;
  padding: 0;
  list-style: none;
}

.portal-breadcrumb a {
  color: var(--portal-text-secondary);
  text-decoration: none;
}

.portal-breadcrumb a:hover {
  color: var(--portal-blue);
}

.portal-breadcrumb .active {
  color: var(--portal-text-primary);
  font-weight: 600;
}

/* Page Container */
.portal-content {
  padding: 1.5rem;
  flex: 1;
}

.portal-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.portal-page-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--portal-text-primary);
  margin: 0;
  letter-spacing: -0.015em;
}

.portal-page-subtitle {
  font-size: 0.85rem;
  color: var(--portal-text-secondary);
  margin-top: 0.2rem;
  margin-bottom: 0;
}

/* Cards & Surfaces */
.portal-card {
  background-color: var(--portal-card-bg);
  border: 1px solid var(--portal-border);
  border-radius: var(--portal-radius-lg);
  box-shadow: var(--portal-shadow);
  margin-bottom: 1.5rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.portal-card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--portal-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #FFFFFF;
  border-top-left-radius: var(--portal-radius-lg);
  border-top-right-radius: var(--portal-radius-lg);
}

.portal-card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--portal-text-primary);
  margin: 0;
}

.portal-card-body {
  padding: 1.25rem;
}

.portal-card-footer {
  padding: 0.85rem 1.25rem;
  background-color: #FAFAFA;
  border-top: 1px solid var(--portal-border);
  border-bottom-left-radius: var(--portal-radius-lg);
  border-bottom-right-radius: var(--portal-radius-lg);
}

/* Metric / Stat Cards */
.portal-stat-card {
  padding: 1.25rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  border-radius: var(--portal-radius-lg);
  background-color: #FFFFFF;
  border: 1px solid var(--portal-border);
  box-shadow: var(--portal-shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.portal-stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--portal-shadow-md);
}

.portal-stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--portal-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
}

.portal-stat-icon.primary {
  background-color: var(--portal-blue-subtle);
  color: var(--portal-blue);
}

.portal-stat-icon.success {
  background-color: var(--portal-success-bg);
  color: var(--portal-success);
}

.portal-stat-icon.warning {
  background-color: var(--portal-warning-bg);
  color: var(--portal-warning);
}

.portal-stat-icon.navy {
  background-color: #F1F5F9;
  color: var(--portal-navy);
}

.portal-stat-label {
  font-size: 0.775rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--portal-text-secondary);
  margin-bottom: 0.35rem;
}

.portal-stat-value {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--portal-text-primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.portal-stat-meta {
  font-size: 0.75rem;
  color: var(--portal-text-secondary);
  margin-top: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Buttons */
.portal-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
  border-radius: var(--portal-radius-md);
  border: 1px solid transparent;
  transition: all 0.15s ease-in-out;
  cursor: pointer;
  text-decoration: none;
  min-height: 38px;
}

.portal-btn-primary {
  background-color: var(--portal-blue);
  color: #FFFFFF;
}
.portal-btn-primary:hover {
  background-color: var(--portal-blue-hover);
  color: #FFFFFF;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.25);
}

.portal-btn-navy {
  background-color: var(--portal-navy);
  color: #FFFFFF;
}
.portal-btn-navy:hover {
  background-color: var(--portal-navy-light);
  color: #FFFFFF;
}

.portal-btn-outline {
  background-color: #FFFFFF;
  border-color: var(--portal-border);
  color: var(--portal-text-primary);
}
.portal-btn-outline:hover {
  background-color: var(--portal-bg);
  border-color: #CBD5E1;
  color: var(--portal-navy);
}

.portal-btn-sm {
  padding: 0.3rem 0.65rem;
  font-size: 0.775rem;
  min-height: 30px;
}

/* Badges */
.portal-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.55rem;
  font-size: 0.725rem;
  font-weight: 600;
  border-radius: var(--portal-radius-sm);
  line-height: 1.2;
}

.portal-badge-success {
  background-color: var(--portal-success-bg);
  color: var(--portal-success);
  border: 1px solid var(--portal-success-border);
}

.portal-badge-warning {
  background-color: var(--portal-warning-bg);
  color: var(--portal-warning);
  border: 1px solid var(--portal-warning-border);
}

.portal-badge-danger {
  background-color: var(--portal-danger-bg);
  color: var(--portal-danger);
  border: 1px solid var(--portal-danger-border);
}

.portal-badge-navy {
  background-color: #F1F5F9;
  color: var(--portal-navy);
  border: 1px solid var(--portal-border);
}

.portal-badge-blue {
  background-color: var(--portal-blue-subtle);
  color: var(--portal-blue);
  border: 1px solid #BFDBFE;
}

/* Form Controls */
.portal-form-label {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--portal-text-primary);
  margin-bottom: 0.35rem;
  display: block;
}

.portal-form-control, .portal-form-select {
  width: 100%;
  padding: 0.55rem 0.85rem;
  font-size: 0.875rem;
  border-radius: var(--portal-radius-md);
  border: 1px solid var(--portal-border);
  background-color: #FFFFFF;
  color: var(--portal-text-primary);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.portal-form-control:focus, .portal-form-select:focus {
  outline: none;
  border-color: var(--portal-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* Tables */
.portal-table-container {
  overflow-x: auto;
  border-radius: var(--portal-radius-md);
  border: 1px solid var(--portal-border);
}

.portal-table {
  width: 100%;
  margin-bottom: 0;
  border-collapse: collapse;
}

.portal-table th {
  background-color: #F8FAFC;
  color: var(--portal-text-secondary);
  font-weight: 600;
  font-size: 0.775rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--portal-border);
  white-space: nowrap;
}

.portal-table td {
  padding: 0.85rem 1rem;
  font-size: 0.85rem;
  color: var(--portal-text-primary);
  border-bottom: 1px solid var(--portal-border-subtle);
  vertical-align: middle;
}

.portal-table tbody tr:last-child td {
  border-bottom: none;
}

.portal-table tbody tr:hover {
  background-color: #F8FAFC;
}

/* Alerts */
.portal-alert {
  padding: 0.85rem 1rem;
  border-radius: var(--portal-radius-md);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
}

.portal-alert-success {
  background-color: var(--portal-success-bg);
  border-color: var(--portal-success-border);
  color: #14532D;
}

.portal-alert-warning {
  background-color: var(--portal-warning-bg);
  border-color: var(--portal-warning-border);
  color: #78350F;
}

.portal-alert-danger {
  background-color: var(--portal-danger-bg);
  border-color: var(--portal-danger-border);
  color: #7F1D1D;
}

.portal-alert-info {
  background-color: var(--portal-info-bg);
  border-color: var(--portal-info-border);
  color: #0C4A6E;
}

/* Empty State Component */
.portal-empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
}

.portal-empty-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #F1F5F9;
  color: var(--portal-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin: 0 auto 1rem;
}

.portal-empty-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--portal-text-primary);
  margin-bottom: 0.25rem;
}

.portal-empty-desc {
  font-size: 0.825rem;
  color: var(--portal-text-secondary);
  max-width: 380px;
  margin: 0 auto 1.25rem;
}

/* Loading State Component */
.portal-loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.5rem;
  gap: 0.75rem;
}

.portal-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid #E2E8F0;
  border-top-color: var(--portal-blue);
  border-radius: 50%;
  animation: portal-spin 0.8s linear infinite;
}

@keyframes portal-spin {
  to { transform: rotate(360deg); }
}

/* Network banner */
.portal-network-status {
  display: none;
  padding: 0.35rem 1rem;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  width: 100%;
}
.portal-network-status.offline {
  display: block;
  background-color: var(--portal-warning);
  color: #FFFFFF;
}

/* Mobile Bottom Navigation Foundation */
.portal-mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--portal-mobile-bottom-height);
  background-color: #FFFFFF;
  border-top: 1px solid var(--portal-border);
  z-index: 1030;
  justify-content: space-around;
  align-items: center;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.04);
}

.portal-mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--portal-text-secondary);
  text-decoration: none;
  font-size: 0.65rem;
  font-weight: 600;
  gap: 0.15rem;
  flex: 1;
  height: 100%;
}

.portal-mobile-nav-item i {
  font-size: 1.25rem;
}

.portal-mobile-nav-item.active {
  color: var(--portal-blue);
}

/* Mobile Sidebar Backdrop */
.portal-sidebar-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(20, 38, 61, 0.45);
  backdrop-filter: blur(2px);
  z-index: 1035;
}

/* Responsive Breakpoints */
@media (max-width: 991.98px) {
  .portal-sidebar {
    transform: translateX(-100%);
  }

  .portal-sidebar.show {
    transform: translateX(0);
  }

  .portal-sidebar-backdrop.show {
    display: block;
  }

  .portal-main-area {
    margin-left: 0;
    padding-bottom: var(--portal-mobile-bottom-height);
  }

  .portal-mobile-bottom-nav {
    display: flex;
  }

  .portal-topbar {
    padding: 0 1rem;
  }

  .portal-content {
    padding: 1rem;
  }
}

/* Small Mobile Screens (320px - 576px) Responsiveness & Overflow Prevention */
@media (max-width: 575.98px) {
  .portal-page-title {
    font-size: 1.15rem;
  }
  .portal-page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .portal-card-header {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .portal-card-body {
    padding: 1rem 0.85rem;
  }
  .table-responsive {
    margin-bottom: 0.5rem;
    -webkit-overflow-scrolling: touch;
  }
  .portal-topbar {
    height: 56px;
    padding: 0 0.75rem;
  }
  .portal-user-profile {
    padding: 0;
  }
}