/**
 * USSD Gateway — Design system (LOT 1)
 * Prefixed .ussd-* utilities + soft foundations.
 * Load this file last to override legacy theme without aggressive global rewrites.
 */

/* -------------------------------------------------------------------------- */
/* Design tokens                                                              */
/* -------------------------------------------------------------------------- */
:root {
  --ussd-color-primary: #1e3a5f;
  --ussd-color-primary-hover: #152a45;
  --ussd-color-primary-soft: #e8eef5;
  --ussd-color-accent: #0e7490;
  --ussd-color-accent-soft: #ecfeff;
  --ussd-color-background: #f1f4f8;
  --ussd-color-surface: #ffffff;
  --ussd-color-surface-secondary: #f8fafc;
  --ussd-color-border: #e2e8f0;
  --ussd-color-border-strong: #cbd5e1;
  --ussd-color-text-primary: #0f172a;
  --ussd-color-text-secondary: #475569;
  --ussd-color-text-muted: #94a3b8;
  --ussd-color-success: #15803d;
  --ussd-color-success-soft: #dcfce7;
  --ussd-color-warning: #b45309;
  --ussd-color-warning-soft: #fef3c7;
  --ussd-color-danger: #b91c1c;
  --ussd-color-danger-soft: #fee2e2;
  --ussd-color-info: #0369a1;
  --ussd-color-info-soft: #e0f2fe;

  --ussd-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --ussd-shadow-md: 0 4px 14px rgba(15, 23, 42, 0.07);
  --ussd-radius-sm: 8px;
  --ussd-radius-md: 12px;
  --ussd-radius-lg: 16px;

  --ussd-space-1: 4px;
  --ussd-space-2: 8px;
  --ussd-space-3: 12px;
  --ussd-space-4: 16px;
  --ussd-space-5: 24px;
  --ussd-space-6: 32px;
  --ussd-space-7: 48px;

  --ussd-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ussd-font-size-xs: 12px;
  --ussd-font-size-sm: 13px;
  --ussd-font-size-md: 14px;
  --ussd-font-size-lg: 16px;
  --ussd-font-size-xl: 20px;
  --ussd-font-size-2xl: 24px;

  --ussd-sidebar-width: 248px;
  --ussd-topbar-height: 56px;
  --ussd-z-sidebar: 1040;
  --ussd-z-topbar: 1030;
  --ussd-z-backdrop: 1035;
}

/* Global tokens only (intentionally limited) */
body {
  font-family: var(--ussd-font-sans);
  color: var(--ussd-color-text-primary);
  background-color: var(--ussd-color-background);
  -webkit-font-smoothing: antialiased;
}

/* -------------------------------------------------------------------------- */
/* Application shell                                                          */
/* -------------------------------------------------------------------------- */
.ussd-app-shell {
  min-height: 100vh;
  display: flex;
  background: var(--ussd-color-background);
  font-family: var(--ussd-font-sans);
  color: var(--ussd-color-text-primary);
}

.ussd-shell-main {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  margin-left: var(--ussd-sidebar-width);
  transition: margin-left 0.2s ease;
}

.ussd-main {
  flex: 1 1 auto;
  min-width: 0;
  padding: var(--ussd-space-5) var(--ussd-space-4) var(--ussd-space-6);
}

/* Soft content framing for legacy pages (no template rewrite) */
.ussd-main > .container,
.ussd-main > .container-fluid,
.ussd-main > section.container,
.ussd-main > section.section-content {
  max-width: 1200px;
}

.ussd-main .spacer {
  margin-top: var(--ussd-space-4);
}

/* -------------------------------------------------------------------------- */
/* Sidebar                                                                    */
/* -------------------------------------------------------------------------- */
.ussd-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--ussd-z-sidebar);
  width: var(--ussd-sidebar-width);
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--ussd-color-primary);
  color: #fff;
  box-shadow: var(--ussd-shadow-sm);
  overflow: hidden;
}

.ussd-sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--ussd-space-3);
  height: var(--ussd-topbar-height);
  padding: 0 var(--ussd-space-4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-decoration: none;
  color: #fff;
  flex-shrink: 0;
}

.ussd-sidebar-brand:hover,
.ussd-sidebar-brand:focus {
  color: #fff;
  text-decoration: none;
}

.ussd-sidebar-brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.ussd-sidebar-brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.2;
}

.ussd-sidebar-brand-title {
  font-size: 14px;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.ussd-sidebar-brand-sub {
  font-size: 11px;
  opacity: 0.7;
  font-weight: 400;
}

.ussd-sidebar-scroll {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: var(--ussd-space-4) var(--ussd-space-3);
}

.ussd-sidebar-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ussd-sidebar-nav-label {
  padding: var(--ussd-space-2) var(--ussd-space-3);
  margin: 0 0 var(--ussd-space-2);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.55;
}

.ussd-nav-link {
  display: flex;
  align-items: center;
  gap: var(--ussd-space-3);
  min-height: 40px;
  padding: 0 var(--ussd-space-3);
  margin-bottom: 2px;
  border-radius: var(--ussd-radius-sm);
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: var(--ussd-font-size-sm);
  font-weight: 500;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.ussd-nav-link i {
  width: 18px;
  text-align: center;
  opacity: 0.9;
  font-size: 14px;
}

.ussd-nav-link:hover,
.ussd-nav-link:focus {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  text-decoration: none;
  outline: none;
}

.ussd-nav-link.is-active,
.ussd-nav-link.active,
li.ussd-nav-item.active > .ussd-nav-link,
li.active > .ussd-nav-link {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  box-shadow: inset 3px 0 0 var(--ussd-color-accent);
}

.ussd-sidebar-backdrop {
  display: none;
}

/* -------------------------------------------------------------------------- */
/* Topbar                                                                     */
/* -------------------------------------------------------------------------- */
.ussd-topbar {
  position: sticky;
  top: 0;
  z-index: var(--ussd-z-topbar);
  height: var(--ussd-topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ussd-space-3);
  padding: 0 var(--ussd-space-4);
  background: var(--ussd-color-surface);
  border-bottom: 1px solid var(--ussd-color-border);
  box-shadow: var(--ussd-shadow-sm);
}

.ussd-topbar-left {
  display: flex;
  align-items: center;
  gap: var(--ussd-space-3);
  min-width: 0;
}

.ussd-topbar-right {
  display: flex;
  align-items: center;
  gap: var(--ussd-space-2);
  flex-shrink: 0;
}

.ussd-topbar-title {
  margin: 0;
  font-size: var(--ussd-font-size-md);
  font-weight: 600;
  color: var(--ussd-color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ussd-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid transparent;
  border-radius: var(--ussd-radius-sm);
  background: transparent;
  color: var(--ussd-color-text-secondary);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.ussd-icon-btn:hover,
.ussd-icon-btn:focus {
  background: var(--ussd-color-surface-secondary);
  color: var(--ussd-color-text-primary);
  outline: none;
}

.ussd-topbar-menu-toggle {
  display: none;
}

.ussd-topbar .nav-link,
.ussd-topbar-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 6px 10px;
  border-radius: var(--ussd-radius-sm);
  color: var(--ussd-color-text-secondary);
  font-size: var(--ussd-font-size-sm);
  font-weight: 500;
  text-decoration: none;
}

.ussd-topbar .nav-link:hover,
.ussd-topbar .nav-link:focus,
.ussd-topbar-dropdown-toggle:hover,
.ussd-topbar-dropdown-toggle:focus {
  background: var(--ussd-color-surface-secondary);
  color: var(--ussd-color-text-primary);
  text-decoration: none;
}

.ussd-topbar .dropdown-menu {
  min-width: 180px;
  padding: var(--ussd-space-2) 0;
  margin-top: 6px;
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-sm);
  box-shadow: var(--ussd-shadow-md);
  font-size: var(--ussd-font-size-sm);
}

.ussd-topbar .dropdown-item {
  padding: 8px 14px;
  color: var(--ussd-color-text-primary);
}

.ussd-topbar .dropdown-item:hover,
.ussd-topbar .dropdown-item:focus {
  background: var(--ussd-color-primary-soft);
  color: var(--ussd-color-primary);
}

.ussd-lang-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--ussd-color-primary-soft);
  color: var(--ussd-color-primary);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* -------------------------------------------------------------------------- */
/* Page structure helpers (for later lots + optional use)                       */
/* -------------------------------------------------------------------------- */
.ussd-page {
  max-width: 1200px;
  margin: 0 auto;
}

.ussd-page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--ussd-space-4);
  margin-bottom: var(--ussd-space-5);
}

.ussd-page-header-text {
  min-width: 0;
  flex: 1 1 220px;
}

.ussd-page-header-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--ussd-space-2);
}

.ussd-page-title {
  margin: 0 0 var(--ussd-space-1);
  font-size: var(--ussd-font-size-2xl);
  font-weight: 650;
  line-height: 1.25;
  color: var(--ussd-color-text-primary);
  letter-spacing: -0.01em;
}

.ussd-page-subtitle {
  margin: 0;
  font-size: var(--ussd-font-size-sm);
  color: var(--ussd-color-text-secondary);
  line-height: 1.45;
}

.ussd-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 var(--ussd-space-3);
  padding: 0;
  list-style: none;
  font-size: var(--ussd-font-size-xs);
  color: var(--ussd-color-text-muted);
}

.ussd-breadcrumbs a {
  color: var(--ussd-color-text-secondary);
  text-decoration: none;
}

.ussd-breadcrumbs a:hover {
  color: var(--ussd-color-primary);
  text-decoration: none;
}

.ussd-breadcrumbs .is-current {
  color: var(--ussd-color-text-primary);
  font-weight: 500;
}

.ussd-breadcrumb-sep {
  color: var(--ussd-color-text-muted);
  opacity: 0.7;
}

/* -------------------------------------------------------------------------- */
/* Cards                                                                      */
/* -------------------------------------------------------------------------- */
.ussd-card {
  background: var(--ussd-color-surface);
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  box-shadow: var(--ussd-shadow-sm);
}

.ussd-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ussd-space-3);
  padding: var(--ussd-space-4);
  border-bottom: 1px solid var(--ussd-color-border);
}

.ussd-card-title {
  margin: 0;
  font-size: var(--ussd-font-size-md);
  font-weight: 600;
  color: var(--ussd-color-text-primary);
}

.ussd-card-body {
  padding: var(--ussd-space-4);
}

.ussd-card-footer {
  padding: var(--ussd-space-3) var(--ussd-space-4);
  border-top: 1px solid var(--ussd-color-border);
  background: var(--ussd-color-surface-secondary);
  border-radius: 0 0 var(--ussd-radius-md) var(--ussd-radius-md);
}

/* Soft lift for legacy Bootstrap cards inside authenticated shell */
.ussd-main .card {
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  box-shadow: var(--ussd-shadow-sm);
  background: var(--ussd-color-surface);
}

.ussd-main .card-header {
  background: var(--ussd-color-surface);
  border-bottom: 1px solid var(--ussd-color-border);
  font-size: var(--ussd-font-size-sm);
  font-weight: 600;
}

/* -------------------------------------------------------------------------- */
/* Buttons                                                                    */
/* -------------------------------------------------------------------------- */
.ussd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 36px;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: var(--ussd-radius-sm);
  font-family: inherit;
  font-size: var(--ussd-font-size-sm);
  font-weight: 550;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}

.ussd-btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.18);
}

.ussd-btn:disabled,
.ussd-btn.is-disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.ussd-btn-primary {
  background: var(--ussd-color-primary);
  border-color: var(--ussd-color-primary);
  color: #fff;
}

.ussd-btn-primary:hover {
  background: var(--ussd-color-primary-hover);
  border-color: var(--ussd-color-primary-hover);
  color: #fff;
  text-decoration: none;
}

.ussd-btn-secondary {
  background: var(--ussd-color-surface);
  border-color: var(--ussd-color-border-strong);
  color: var(--ussd-color-text-primary);
}

.ussd-btn-secondary:hover {
  background: var(--ussd-color-surface-secondary);
  color: var(--ussd-color-text-primary);
  text-decoration: none;
}

.ussd-btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--ussd-color-text-secondary);
}

.ussd-btn-ghost:hover {
  background: var(--ussd-color-surface-secondary);
  color: var(--ussd-color-text-primary);
  text-decoration: none;
}

.ussd-btn-danger {
  background: var(--ussd-color-danger);
  border-color: var(--ussd-color-danger);
  color: #fff;
}

.ussd-btn-danger:hover {
  background: #991b1b;
  border-color: #991b1b;
  color: #fff;
  text-decoration: none;
}

.ussd-btn-sm {
  min-height: 30px;
  padding: 4px 10px;
  font-size: var(--ussd-font-size-xs);
}

.ussd-btn-icon {
  width: 36px;
  padding: 0;
}

/* Soft restyle of primary Bootstrap buttons inside shell (not global body-wide) */
.ussd-main .btn-primary,
.ussd-topbar .btn-primary {
  background-color: var(--ussd-color-primary);
  border-color: var(--ussd-color-primary);
}

.ussd-main .btn-primary:hover,
.ussd-main .btn-primary:focus,
.ussd-topbar .btn-primary:hover {
  background-color: var(--ussd-color-primary-hover);
  border-color: var(--ussd-color-primary-hover);
}

.ussd-main .btn-info {
  background-color: var(--ussd-color-info);
  border-color: var(--ussd-color-info);
}

.ussd-main .btn-success {
  background-color: var(--ussd-color-success);
  border-color: var(--ussd-color-success);
}

.ussd-main .btn-danger {
  background-color: var(--ussd-color-danger);
  border-color: var(--ussd-color-danger);
}

.ussd-main .btn,
.modal .btn {
  border-radius: var(--ussd-radius-sm);
  font-size: var(--ussd-font-size-sm);
  font-weight: 500;
}

/* -------------------------------------------------------------------------- */
/* Badges                                                                     */
/* -------------------------------------------------------------------------- */
.ussd-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 22px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.ussd-badge-success {
  background: var(--ussd-color-success-soft);
  color: var(--ussd-color-success);
}

.ussd-badge-danger {
  background: var(--ussd-color-danger-soft);
  color: var(--ussd-color-danger);
}

.ussd-badge-warning {
  background: var(--ussd-color-warning-soft);
  color: var(--ussd-color-warning);
}

.ussd-badge-info {
  background: var(--ussd-color-info-soft);
  color: var(--ussd-color-info);
}

.ussd-badge-neutral {
  background: var(--ussd-color-surface-secondary);
  color: var(--ussd-color-text-secondary);
  border: 1px solid var(--ussd-color-border);
}

/* -------------------------------------------------------------------------- */
/* Forms                                                                      */
/* -------------------------------------------------------------------------- */
.ussd-form-section {
  margin-bottom: var(--ussd-space-5);
}

.ussd-form-section-title {
  margin: 0 0 var(--ussd-space-3);
  font-size: var(--ussd-font-size-sm);
  font-weight: 600;
  color: var(--ussd-color-text-primary);
}

.ussd-form-section-hint {
  margin: -4px 0 var(--ussd-space-3);
  font-size: var(--ussd-font-size-xs);
  color: var(--ussd-color-text-muted);
}

.ussd-label {
  display: block;
  margin-bottom: 6px;
  font-size: var(--ussd-font-size-sm);
  font-weight: 500;
  color: var(--ussd-color-text-secondary);
}

.ussd-help {
  display: block;
  margin-top: 4px;
  font-size: var(--ussd-font-size-xs);
  color: var(--ussd-color-text-muted);
}

.ussd-field-error {
  display: block;
  margin-top: 4px;
  font-size: var(--ussd-font-size-xs);
  color: var(--ussd-color-danger);
}

/* Soft form refinements inside shell + modals */
.ussd-main .form-control,
.modal .form-control {
  min-height: 38px;
  border-color: var(--ussd-color-border);
  border-radius: var(--ussd-radius-sm);
  font-size: var(--ussd-font-size-md);
  color: var(--ussd-color-text-primary);
}

.ussd-main .form-control:focus,
.modal .form-control:focus {
  border-color: var(--ussd-color-primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.12);
}

.ussd-main .control-label,
.modal .control-label {
  font-size: var(--ussd-font-size-sm);
  font-weight: 500;
  color: var(--ussd-color-text-secondary);
}

.ussd-main textarea.form-control,
.modal textarea.form-control {
  min-height: 96px;
}

/* -------------------------------------------------------------------------- */
/* Tables                                                                     */
/* -------------------------------------------------------------------------- */
.ussd-table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  background: var(--ussd-color-surface);
}

.ussd-table {
  width: 100%;
  margin: 0;
  background: var(--ussd-color-surface);
  font-size: var(--ussd-font-size-sm);
}

.ussd-table thead th {
  background: var(--ussd-color-surface-secondary);
  border-bottom: 1px solid var(--ussd-color-border);
  color: var(--ussd-color-text-secondary);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  padding: 10px 14px;
}

.ussd-table tbody td {
  padding: 12px 14px;
  vertical-align: middle;
  border-top: 1px solid var(--ussd-color-border);
  color: var(--ussd-color-text-primary);
}

.ussd-table tbody tr:hover {
  background: #f8fafc;
}

/* Soft polish for ng-table / bootstrap tables in shell */
.ussd-main .table {
  background: var(--ussd-color-surface);
  font-size: var(--ussd-font-size-sm);
}

.ussd-main .table-striped tbody tr:nth-of-type(odd) {
  background-color: #fafbfc;
}

.ussd-main .ng-table th {
  background: var(--ussd-color-surface-secondary);
  font-weight: 600;
  color: var(--ussd-color-text-secondary);
  border-bottom: 1px solid var(--ussd-color-border);
}

.ussd-main .table-responsive {
  border-radius: var(--ussd-radius-md);
  border: 1px solid var(--ussd-color-border);
  background: var(--ussd-color-surface);
}

/* -------------------------------------------------------------------------- */
/* Action dropdown                                                            */
/* -------------------------------------------------------------------------- */
.ussd-action-menu .dropdown-toggle::after {
  margin-left: 6px;
}

.ussd-action-menu .dropdown-menu {
  min-width: 180px;
  padding: 6px 0;
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-sm);
  box-shadow: var(--ussd-shadow-md);
  font-size: var(--ussd-font-size-sm);
}

.ussd-action-menu .dropdown-item {
  padding: 8px 14px;
}

.ussd-action-menu .dropdown-item-danger {
  color: var(--ussd-color-danger);
}

.ussd-action-menu .dropdown-item-danger:hover,
.ussd-action-menu .dropdown-item-danger:focus {
  background: var(--ussd-color-danger-soft);
  color: var(--ussd-color-danger);
}

/* -------------------------------------------------------------------------- */
/* Modals (generic component modernization)                                   */
/* -------------------------------------------------------------------------- */
.modal-content {
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  box-shadow: var(--ussd-shadow-md);
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ussd-space-3);
  padding: var(--ussd-space-4);
  border-bottom: 1px solid var(--ussd-color-border);
  background: var(--ussd-color-surface);
}

.modal-title {
  margin: 0;
  font-size: var(--ussd-font-size-lg);
  font-weight: 600;
  color: var(--ussd-color-text-primary);
}

.modal-body {
  padding: var(--ussd-space-4);
  background: var(--ussd-color-surface);
}

.modal-footer {
  padding: var(--ussd-space-3) var(--ussd-space-4);
  border-top: 1px solid var(--ussd-color-border);
  background: var(--ussd-color-surface-secondary);
}

.modal-backdrop.show {
  opacity: 0.45;
}

/* Modal sizes: md (bootstrap default), lg, xl — compatible with $uibModal size */
@media (min-width: 576px) {
  .modal-dialog {
    margin: 1.75rem auto;
  }
}

@media (min-width: 768px) {
  .modal-lg {
    max-width: 720px;
  }

  .modal-xl {
    width: auto;
    max-width: 960px;
  }
}

@media (min-width: 1200px) {
  .modal-xl {
    max-width: 1100px;
  }
}

@media (max-width: 575.98px) {
  .modal-dialog {
    margin: 0.5rem;
    max-width: calc(100% - 1rem);
  }

  .modal-content {
    border-radius: var(--ussd-radius-md);
  }

  .modal-body {
    max-height: calc(100vh - 160px);
    overflow-y: auto;
  }
}

/* -------------------------------------------------------------------------- */
/* Pagination (ng-table + bootstrap)                                          */
/* -------------------------------------------------------------------------- */
.ussd-main .pagination {
  margin: var(--ussd-space-4) 0 0;
}

.ussd-main .pagination > li > a,
.ussd-main .pagination > li > span,
.ussd-main .page-link {
  color: var(--ussd-color-text-secondary);
  border-color: var(--ussd-color-border);
  font-size: var(--ussd-font-size-sm);
}

.ussd-main .pagination > .active > a,
.ussd-main .pagination > .active > span,
.ussd-main .page-item.active .page-link {
  background-color: var(--ussd-color-primary);
  border-color: var(--ussd-color-primary);
  color: #fff;
}

/* -------------------------------------------------------------------------- */
/* Empty / loading / error states                                             */
/* -------------------------------------------------------------------------- */
.ussd-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--ussd-space-7) var(--ussd-space-5);
  background: var(--ussd-color-surface);
  border: 1px dashed var(--ussd-color-border-strong);
  border-radius: var(--ussd-radius-md);
}

.ussd-empty-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: var(--ussd-space-3);
  border-radius: 12px;
  background: var(--ussd-color-primary-soft);
  color: var(--ussd-color-primary);
  font-size: 18px;
}

.ussd-empty-title {
  margin: 0 0 var(--ussd-space-2);
  font-size: var(--ussd-font-size-lg);
  font-weight: 600;
  color: var(--ussd-color-text-primary);
}

.ussd-empty-text {
  margin: 0 0 var(--ussd-space-4);
  max-width: 360px;
  font-size: var(--ussd-font-size-sm);
  color: var(--ussd-color-text-secondary);
  line-height: 1.5;
}

.ussd-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--ussd-space-3);
  min-height: 160px;
  padding: var(--ussd-space-5);
  color: var(--ussd-color-text-secondary);
  font-size: var(--ussd-font-size-sm);
}

.ussd-loading-spinner {
  width: 28px;
  height: 28px;
  border: 2px solid var(--ussd-color-border);
  border-top-color: var(--ussd-color-primary);
  border-radius: 50%;
  animation: ussd-spin 0.7s linear infinite;
}

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

.ussd-error-state {
  padding: var(--ussd-space-4);
  border: 1px solid #fecaca;
  border-radius: var(--ussd-radius-md);
  background: var(--ussd-color-danger-soft);
  color: var(--ussd-color-danger);
  font-size: var(--ussd-font-size-sm);
}

/* Soft alert polish inside shell / modals */
.ussd-main .alert,
.modal .alert {
  border-radius: var(--ussd-radius-sm);
  border-width: 1px;
  font-size: var(--ussd-font-size-sm);
}

.ussd-main .alert-info {
  background: var(--ussd-color-info-soft);
  border-color: #bae6fd;
  color: var(--ussd-color-info);
}

.ussd-main .alert-danger {
  background: var(--ussd-color-danger-soft);
  border-color: #fecaca;
  color: var(--ussd-color-danger);
}

/* Spinner directive container compatibility */
.ussd-main .loading-container {
  min-height: 120px;
}

/* -------------------------------------------------------------------------- */
/* Login page soft frame (simple.html — no shell)                             */
/* -------------------------------------------------------------------------- */
body > ui-view .auth-form-light,
.auth-form-light {
  background: var(--ussd-color-surface);
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-lg);
  box-shadow: var(--ussd-shadow-md);
}

.auth-form-light .brand-logo {
  margin-bottom: var(--ussd-space-3);
  font-size: 18px;
  font-weight: 700;
  color: var(--ussd-color-primary);
  letter-spacing: 0.02em;
}

.auth-form-light .form-control-lg {
  min-height: 44px;
  border-radius: var(--ussd-radius-sm);
}

.auth-form-light .auth-form-btn {
  background: var(--ussd-color-primary);
  border-color: var(--ussd-color-primary);
  border-radius: var(--ussd-radius-sm);
}

.auth-form-light .auth-form-btn:hover {
  background: var(--ussd-color-primary-hover);
  border-color: var(--ussd-color-primary-hover);
}

/* -------------------------------------------------------------------------- */
/* Responsive                                                                 */
/* -------------------------------------------------------------------------- */
@media (max-width: 991.98px) {
  .ussd-shell-main {
    margin-left: 0;
  }

  .ussd-sidebar {
    transform: translateX(-100%);
    transition: transform 0.2s ease;
  }

  .ussd-app-shell.ussd-sidebar-open .ussd-sidebar {
    transform: translateX(0);
  }

  .ussd-sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: var(--ussd-z-backdrop);
    background: rgba(15, 23, 42, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
  }

  .ussd-app-shell.ussd-sidebar-open .ussd-sidebar-backdrop {
    opacity: 1;
    visibility: visible;
  }

  .ussd-topbar-menu-toggle {
    display: inline-flex;
  }

  .ussd-main {
    padding: var(--ussd-space-4) var(--ussd-space-3) var(--ussd-space-5);
  }
}

@media (max-width: 575.98px) {
  .ussd-topbar-title {
    font-size: var(--ussd-font-size-sm);
  }

  .ussd-page-header {
    flex-direction: column;
    align-items: stretch;
  }

  .ussd-page-header-actions {
    width: 100%;
  }

  .ussd-page-header-actions .ussd-btn,
  .ussd-page-header-actions .btn {
    flex: 1 1 auto;
  }

  .ussd-main .btn {
    white-space: normal;
  }

  /* Tables scroll on small screens when wrapped */
  .ussd-main table.table {
    min-width: 560px;
  }

  .ussd-main .ng-table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* Reduce motion for a11y */
@media (prefers-reduced-motion: reduce) {
  .ussd-sidebar,
  .ussd-sidebar-backdrop,
  .ussd-shell-main,
  .ussd-loading-spinner {
    transition: none;
    animation: none;
  }
}

/* -------------------------------------------------------------------------- */
/* LOT 2 — Login                                                              */
/* -------------------------------------------------------------------------- */
.ussd-login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--ussd-space-5) var(--ussd-space-4);
  background: var(--ussd-color-background);
}

.ussd-login-card {
  width: 100%;
  max-width: 440px;
  padding: var(--ussd-space-6) var(--ussd-space-5);
  background: var(--ussd-color-surface);
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-lg);
  box-shadow: var(--ussd-shadow-md);
}

.ussd-login-brand {
  display: flex;
  align-items: flex-start;
  gap: var(--ussd-space-3);
  margin-bottom: var(--ussd-space-5);
}

.ussd-login-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--ussd-color-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.ussd-login-title {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ussd-color-primary);
  letter-spacing: 0.01em;
}

.ussd-login-tagline {
  margin: 0;
  font-size: var(--ussd-font-size-sm);
  color: var(--ussd-color-text-secondary);
  line-height: 1.45;
}

.ussd-login-heading {
  margin: 0 0 var(--ussd-space-4);
  font-size: var(--ussd-font-size-lg);
  font-weight: 600;
  color: var(--ussd-color-text-primary);
}

.ussd-login-alerts .alert {
  margin-bottom: var(--ussd-space-3);
  font-size: var(--ussd-font-size-sm);
}

.ussd-login-form .form-group {
  margin-bottom: var(--ussd-space-4);
}

.ussd-password-field {
  position: relative;
}

.ussd-password-field .form-control {
  padding-right: 44px;
}

.ussd-password-toggle {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border: 0;
  background: transparent;
  color: var(--ussd-color-text-muted);
  cursor: pointer;
  border-radius: var(--ussd-radius-sm);
}

.ussd-password-toggle:hover,
.ussd-password-toggle:focus {
  color: var(--ussd-color-text-primary);
  outline: none;
  background: var(--ussd-color-surface-secondary);
}

.ussd-login-actions {
  margin-top: var(--ussd-space-5);
}

.ussd-login-submit {
  min-height: 44px;
  background: var(--ussd-color-primary) !important;
  border-color: var(--ussd-color-primary) !important;
  border-radius: var(--ussd-radius-sm);
  font-weight: 600;
}

.ussd-login-submit:hover:not(:disabled),
.ussd-login-submit:focus:not(:disabled) {
  background: var(--ussd-color-primary-hover) !important;
  border-color: var(--ussd-color-primary-hover) !important;
}

.ussd-login-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

/* -------------------------------------------------------------------------- */
/* LOT 2 — List pages                                                         */
/* -------------------------------------------------------------------------- */
.ussd-page-meta {
  margin: var(--ussd-space-2) 0 0;
  font-size: var(--ussd-font-size-xs);
  color: var(--ussd-color-text-muted);
}

.ussd-list-card {
  padding: 0;
  overflow: visible;
}

.ussd-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--ussd-space-3);
  padding: var(--ussd-space-4);
  border-bottom: 1px solid var(--ussd-color-border);
  background: var(--ussd-color-surface);
  border-radius: var(--ussd-radius-md) var(--ussd-radius-md) 0 0;
}

.ussd-toolbar-field {
  min-width: 160px;
  flex: 0 1 200px;
}

.ussd-toolbar-search {
  flex: 1 1 240px;
  min-width: 200px;
  max-width: 360px;
}

.ussd-toolbar-hint {
  margin: 0;
  flex: 1 1 100%;
  font-size: 11px;
  color: var(--ussd-color-text-muted);
}

.ussd-input-icon {
  position: relative;
}

.ussd-input-icon > i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ussd-color-text-muted);
  font-size: 13px;
  pointer-events: none;
}

.ussd-input-icon .form-control {
  padding-left: 36px;
}

.ussd-list-page .ussd-table-wrap {
  border: 0;
  border-radius: 0 0 var(--ussd-radius-md) var(--ussd-radius-md);
  overflow-x: auto;
  overflow-y: visible;
}

.ussd-list-table {
  margin-bottom: 0;
}

.ussd-list-table.table {
  min-width: 640px;
}

.ussd-row-clickable {
  cursor: pointer;
}

.ussd-row-clickable:hover > td {
  background: #f8fafc;
}

.ussd-cell-strong {
  font-weight: 600;
  color: var(--ussd-color-text-primary);
}

.ussd-cell-primary {
  color: var(--ussd-color-text-primary);
  display: inline-block;
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
}

.ussd-code {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 6px;
  background: var(--ussd-color-surface-secondary);
  border: 1px solid var(--ussd-color-border);
  color: var(--ussd-color-text-secondary);
  font-size: 12px;
  font-weight: 500;
}

.ussd-col-actions {
  white-space: nowrap;
  width: 1%;
}

.ussd-col-actions .ussd-open-link {
  margin-right: 4px;
  vertical-align: middle;
}

.ussd-action-menu {
  display: inline-flex;
  vertical-align: middle;
}

.ussd-dropdown-danger {
  color: var(--ussd-color-danger) !important;
}

.ussd-dropdown-danger:hover,
.ussd-dropdown-danger:focus {
  background: var(--ussd-color-danger-soft) !important;
  color: var(--ussd-color-danger) !important;
}

/* Append-to-body dropdowns from uib-dropdown */
.dropdown-menu {
  z-index: 1080;
}

.ussd-form-group.required .ussd-label:after,
.ussd-form-group.required .control-label:after {
  content: " *";
  color: var(--ussd-color-danger);
  font-weight: 600;
}

.ussd-form-section-last {
  margin-bottom: 0;
}

.ussd-textarea {
  resize: vertical;
  min-height: 110px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.45;
}

.ussd-delete-lead {
  margin: 0 0 var(--ussd-space-3);
  font-size: var(--ussd-font-size-md);
  color: var(--ussd-color-text-primary);
}

.ussd-delete-warning {
  margin: 0 0 var(--ussd-space-4);
  font-size: var(--ussd-font-size-sm);
  color: var(--ussd-color-danger);
}

.ussd-delete-target {
  padding: var(--ussd-space-3);
  border-radius: var(--ussd-radius-sm);
  background: var(--ussd-color-surface-secondary);
  border: 1px solid var(--ussd-color-border);
  font-size: var(--ussd-font-size-sm);
  color: var(--ussd-color-text-secondary);
}

.ussd-list-page .pagination {
  padding: 0 var(--ussd-space-4) var(--ussd-space-4);
}

.ussd-list-page .ng-table-pager {
  padding: var(--ussd-space-3) var(--ussd-space-4) var(--ussd-space-4);
  margin: 0;
  border-top: 1px solid var(--ussd-color-border);
}

.ussd-list-page .ussd-empty {
  margin: var(--ussd-space-4);
  border-style: dashed;
}

@media (max-width: 767.98px) {
  .ussd-login-card {
    padding: var(--ussd-space-5) var(--ussd-space-4);
    max-width: 100%;
  }

  .ussd-page-header-actions {
    width: 100%;
  }

  .ussd-page-header-actions .ussd-btn {
    flex: 1 1 auto;
    justify-content: center;
  }

  .ussd-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .ussd-toolbar-field,
  .ussd-toolbar-search {
    max-width: none;
    width: 100%;
    flex: 1 1 auto;
  }

  .ussd-col-date {
    display: none;
  }
}

/* -------------------------------------------------------------------------- */
/* LOT 3 — Tree editor                                                        */
/* -------------------------------------------------------------------------- */
.ussd-tree-page {
  max-width: 100%;
}

.ussd-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--ussd-space-3);
  font-size: var(--ussd-font-size-sm);
  color: var(--ussd-color-text-secondary);
}

.ussd-breadcrumb a {
  color: var(--ussd-color-accent);
  text-decoration: none;
}

.ussd-breadcrumb a:hover {
  text-decoration: underline;
}

.ussd-breadcrumb-sep {
  color: var(--ussd-color-text-muted);
}

.ussd-breadcrumb-current {
  color: var(--ussd-color-text-primary);
  font-weight: 500;
}

.ussd-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: var(--ussd-space-2);
}

.ussd-meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--ussd-color-surface-secondary);
  border: 1px solid var(--ussd-color-border);
  font-size: var(--ussd-font-size-xs);
  color: var(--ussd-color-text-secondary);
}

.ussd-meta-label {
  color: var(--ussd-color-text-muted);
  font-weight: 500;
}

.ussd-kpi-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--ussd-space-3);
  margin-bottom: var(--ussd-space-4);
}

.ussd-kpi {
  background: var(--ussd-color-surface);
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  padding: var(--ussd-space-3) var(--ussd-space-4);
  box-shadow: var(--ussd-shadow-sm);
  min-width: 0;
}

.ussd-kpi-value {
  display: block;
  font-size: var(--ussd-font-size-xl);
  font-weight: 700;
  color: var(--ussd-color-primary);
  line-height: 1.2;
}

.ussd-kpi-label {
  display: block;
  margin-top: 2px;
  font-size: var(--ussd-font-size-xs);
  color: var(--ussd-color-text-secondary);
}

.ussd-tree-layout {
  display: flex;
  align-items: stretch;
  gap: var(--ussd-space-4);
  min-height: 420px;
}

.ussd-tree-main {
  flex: 1 1 auto;
  min-width: 0;
  background: var(--ussd-color-surface);
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  box-shadow: var(--ussd-shadow-sm);
  overflow: hidden;
}

.ussd-tree-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--ussd-space-2);
  padding: var(--ussd-space-3) var(--ussd-space-4);
  border-bottom: 1px solid var(--ussd-color-border);
  background: var(--ussd-color-surface-secondary);
}

.ussd-tree-toolbar .ussd-toolbar-search {
  flex: 1 1 220px;
  max-width: 320px;
}

.ussd-tree-toolbar .ussd-toolbar-field {
  min-width: 140px;
}

.ussd-tree-result-count {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  font-size: var(--ussd-font-size-sm);
  color: var(--ussd-color-text-secondary);
}

.ussd-tree {
  padding: var(--ussd-space-2) 0 var(--ussd-space-4);
  max-height: calc(100vh - 280px);
  overflow: auto;
}

.ussd-tree-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ussd-tree-list-nested {
  margin-left: 18px;
  padding-left: 12px;
  border-left: 1px solid var(--ussd-color-border);
}

.ussd-tree-list-nested.is-insights-branch {
  border-left-style: solid;
  border-left-color: rgba(30, 58, 95, 0.45);
  transition: border-left-width 0.15s ease;
}

/* ---- A2.3 Insights ---- */
.ussd-tree-mode-bar {
  margin-bottom: var(--ussd-space-3);
}

.ussd-segmented {
  display: inline-flex;
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  overflow: hidden;
  background: var(--ussd-color-surface);
}

.ussd-segmented-btn {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 8px 16px;
  font-size: var(--ussd-font-size-sm);
  font-weight: 600;
  color: var(--ussd-color-text-secondary);
  cursor: pointer;
}

.ussd-segmented-btn + .ussd-segmented-btn {
  border-left: 1px solid var(--ussd-color-border);
}

.ussd-segmented-btn.is-active {
  background: var(--ussd-color-primary);
  color: #fff;
}

.ussd-insights-toolbar {
  background: var(--ussd-color-surface);
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  padding: var(--ussd-space-3) var(--ussd-space-4);
  margin-bottom: var(--ussd-space-3);
  box-shadow: var(--ussd-shadow-sm);
}

.ussd-insights-toolbar-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ussd-space-3);
  align-items: flex-end;
}

.ussd-insights-period {
  min-width: 200px;
  flex: 1 1 200px;
}

.ussd-insights-toolbar-actions {
  padding-bottom: 2px;
}

.ussd-insights-legend {
  margin-top: var(--ussd-space-3);
  padding-top: var(--ussd-space-2);
  border-top: 1px solid var(--ussd-color-border);
}

.ussd-insights-legend-toggle {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--ussd-color-text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.ussd-insights-legend-body {
  margin-top: 8px;
}

.ussd-insights-legend-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font-size: 12px;
}

.ussd-insights-legend-label {
  font-weight: 600;
}

.ussd-traffic-scale {
  display: inline-flex;
  gap: 3px;
}

.ussd-traffic-swatch {
  width: 18px;
  height: 10px;
  border-radius: 2px;
}

.ussd-insights-legend-note {
  margin: 4px 0 0;
  font-size: 11px;
  color: var(--ussd-color-text-muted);
}

.ussd-insights-scale-caption {
  font-size: 11px;
}

/* Traffic intensity — same primary hue, no green/red judgment */
.ussd-tree-node.ussd-traffic-0 > .ussd-tree-row {
  background: transparent;
}

.ussd-tree-node.ussd-traffic-1 > .ussd-tree-row {
  background: rgba(30, 58, 95, 0.04);
  box-shadow: inset 2px 0 0 rgba(30, 58, 95, 0.18);
}

.ussd-tree-node.ussd-traffic-2 > .ussd-tree-row {
  background: rgba(30, 58, 95, 0.08);
  box-shadow: inset 2px 0 0 rgba(30, 58, 95, 0.32);
}

.ussd-tree-node.ussd-traffic-3 > .ussd-tree-row {
  background: rgba(30, 58, 95, 0.12);
  box-shadow: inset 3px 0 0 rgba(30, 58, 95, 0.5);
}

.ussd-tree-node.ussd-traffic-4 > .ussd-tree-row {
  background: rgba(30, 58, 95, 0.18);
  box-shadow: inset 3px 0 0 rgba(30, 58, 95, 0.72);
}

.ussd-tree-node.is-no-activity > .ussd-tree-row .ussd-tree-title {
  color: var(--ussd-color-text-muted);
}

.ussd-tree-node.is-selected.ussd-traffic-1 > .ussd-tree-row,
.ussd-tree-node.is-selected.ussd-traffic-2 > .ussd-tree-row,
.ussd-tree-node.is-selected.ussd-traffic-3 > .ussd-tree-row,
.ussd-tree-node.is-selected.ussd-traffic-4 > .ussd-tree-row,
.ussd-tree-node.is-selected.ussd-traffic-0 > .ussd-tree-row {
  box-shadow: inset 3px 0 0 var(--ussd-color-primary);
}

.ussd-traffic-swatch.ussd-traffic-1 { background: rgba(30, 58, 95, 0.15); }
.ussd-traffic-swatch.ussd-traffic-2 { background: rgba(30, 58, 95, 0.3); }
.ussd-traffic-swatch.ussd-traffic-3 { background: rgba(30, 58, 95, 0.5); }
.ussd-traffic-swatch.ussd-traffic-4 { background: rgba(30, 58, 95, 0.75); }

.ussd-tree-insight-metrics {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 2px 6px;
  margin-top: 3px;
  font-size: 11px;
  color: var(--ussd-color-text-secondary);
  line-height: 1.35;
}

.ussd-insight-metric-primary {
  font-weight: 600;
  color: var(--ussd-color-primary);
}

.ussd-insight-metric-unit {
  font-weight: 500;
  opacity: 0.85;
}

.ussd-insight-sep {
  opacity: 0.5;
}

.ussd-insight-no-activity {
  font-style: italic;
  color: var(--ussd-color-text-muted);
}

.ussd-insight-finish {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 600;
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fcd34d;
}

.ussd-traffic-dot {
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  margin-top: 10px;
  border-radius: 50%;
  background: rgba(30, 58, 95, 0.25);
}

.ussd-tree-node.ussd-traffic-1 .ussd-traffic-dot { background: rgba(30, 58, 95, 0.25); }
.ussd-tree-node.ussd-traffic-2 .ussd-traffic-dot { background: rgba(30, 58, 95, 0.4); }
.ussd-tree-node.ussd-traffic-3 .ussd-traffic-dot { background: rgba(30, 58, 95, 0.6); }
.ussd-tree-node.ussd-traffic-4 .ussd-traffic-dot { background: rgba(30, 58, 95, 0.85); }
.ussd-tree-node.ussd-traffic-0 .ussd-traffic-dot { background: rgba(15, 23, 42, 0.12); }

.ussd-panel-section-title {
  margin: 16px 0 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ussd-color-text-muted);
}

.ussd-insight-dest {
  padding: 8px 0;
  border-bottom: 1px solid var(--ussd-color-border);
}

.ussd-insight-dest:last-child {
  border-bottom: none;
}

.ussd-insight-dest-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: baseline;
}

.ussd-insight-dest-meta {
  font-size: 11px;
  color: var(--ussd-color-text-secondary);
  margin: 2px 0 6px;
}

.ussd-tree-layout.is-insights-mode .ussd-tree-panel {
  width: 400px;
  flex: 0 0 400px;
}

@media (max-width: 1199.98px) {
  .ussd-tree-layout.is-insights-mode .ussd-tree-panel {
    width: 100%;
    flex: 1 1 auto;
  }
}

@media (max-width: 767.98px) {
  .ussd-insight-desktop {
    display: none;
  }

  .ussd-insights-toolbar-row {
    flex-direction: column;
    align-items: stretch;
  }

  .ussd-segmented {
    display: flex;
    width: 100%;
  }

  .ussd-segmented-btn {
    flex: 1 1 50%;
    text-align: center;
  }

  .ussd-tree-insight-metrics {
    font-size: 10px;
  }
}


.ussd-tree-node {
  position: relative;
}

.ussd-tree-node.is-filter-hidden {
  display: none;
}

.ussd-tree-node.is-dimmed > .ussd-tree-row {
  opacity: 0.38;
}

.ussd-tree-node.is-match > .ussd-tree-row {
  background: var(--ussd-color-accent-soft);
}

.ussd-tree-node.is-selected > .ussd-tree-row {
  background: var(--ussd-color-primary-soft);
  box-shadow: inset 3px 0 0 var(--ussd-color-primary);
}

.ussd-tree-node.is-fallback > .ussd-tree-row {
  border-left: 2px dashed var(--ussd-color-warning);
}

.ussd-tree-node.is-disabled > .ussd-tree-row .ussd-tree-title {
  color: var(--ussd-color-text-muted);
}

.ussd-tree-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 12px;
  margin: 1px 8px;
  border-radius: var(--ussd-radius-sm);
  cursor: pointer;
  transition: background 0.12s ease;
  outline: none;
}

.ussd-tree-row:hover {
  background: var(--ussd-color-surface-secondary);
}

.ussd-tree-row:focus {
  box-shadow: 0 0 0 2px rgba(30, 58, 95, 0.25);
}

.ussd-tree-chevron {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border: 0;
  background: transparent;
  color: var(--ussd-color-text-secondary);
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin-top: 1px;
  cursor: pointer;
}

.ussd-tree-chevron:hover:not(.is-empty) {
  background: var(--ussd-color-primary-soft);
  color: var(--ussd-color-primary);
}

.ussd-tree-chevron.is-empty {
  cursor: default;
  visibility: hidden;
}

.ussd-tree-type-icon {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ussd-color-surface-secondary);
  color: var(--ussd-color-primary);
  font-size: 12px;
  margin-top: 1px;
}

.ussd-tree-node.is-fallback .ussd-tree-type-icon {
  background: var(--ussd-color-warning-soft);
  color: var(--ussd-color-warning);
}

.ussd-tree-body {
  flex: 1 1 auto;
  min-width: 0;
}

.ussd-tree-title-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.ussd-tree-title {
  font-size: var(--ussd-font-size-sm);
  font-weight: 600;
  color: var(--ussd-color-text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.35;
}

.ussd-tree-type-tag {
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--ussd-color-surface-secondary);
  border: 1px solid var(--ussd-color-border);
  color: var(--ussd-color-text-secondary);
}

.ussd-badge-fallback {
  background: var(--ussd-color-warning-soft);
  color: var(--ussd-color-warning);
  border: 1px solid transparent;
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 600;
}

.ussd-tree-subline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 2px;
  font-size: 11px;
  color: var(--ussd-color-text-muted);
}

.ussd-tree-status {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  margin-top: 4px;
  white-space: nowrap;
}

.ussd-tree-status.is-on {
  background: var(--ussd-color-success-soft);
  color: var(--ussd-color-success);
}

.ussd-tree-status.is-off {
  background: var(--ussd-color-surface-secondary);
  color: var(--ussd-color-text-muted);
}

.ussd-tree-actions {
  margin-top: 2px;
}

/* Context menu (right-click on tree nodes) */
.ussd-ctx-menu {
  position: fixed !important;
  z-index: 1200;
  display: block;
  min-width: 220px;
  max-width: 280px;
  max-height: calc(100vh - 16px);
  overflow-y: auto;
  margin: 0;
  padding: 0.35rem 0;
  box-shadow: var(--ussd-shadow-md);
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-sm);
  background: var(--ussd-color-surface);
}

.ussd-ctx-menu .dropdown-item {
  font-size: var(--ussd-font-size-sm);
  padding: 0.4rem 0.9rem;
  cursor: pointer;
}

.ussd-tree-empty {
  padding: var(--ussd-space-6) var(--ussd-space-4);
  text-align: center;
  color: var(--ussd-color-text-secondary);
  font-size: var(--ussd-font-size-sm);
}

.ussd-tree-panel {
  flex: 0 0 380px;
  width: 380px;
  max-width: 100%;
  position: sticky;
  top: calc(var(--ussd-topbar-height) + 12px);
  align-self: flex-start;
  max-height: calc(100vh - var(--ussd-topbar-height) - 24px);
}

.ussd-tree-panel-inner {
  background: var(--ussd-color-surface);
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  box-shadow: var(--ussd-shadow-sm);
  display: flex;
  flex-direction: column;
  max-height: inherit;
  overflow: hidden;
}

.ussd-tree-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--ussd-space-3) var(--ussd-space-4);
  border-bottom: 1px solid var(--ussd-color-border);
}

.ussd-tree-panel-title {
  margin: 0;
  font-size: var(--ussd-font-size-md);
  font-weight: 600;
}

.ussd-tree-panel-close {
  display: none;
}

.ussd-tree-panel-empty {
  padding: var(--ussd-space-6) var(--ussd-space-4);
  text-align: center;
  color: var(--ussd-color-text-muted);
  font-size: var(--ussd-font-size-sm);
}

.ussd-tree-panel-empty i {
  font-size: 22px;
  margin-bottom: 8px;
  display: block;
}

.ussd-tree-panel-body {
  padding: var(--ussd-space-4);
  overflow: auto;
}

.ussd-panel-field {
  margin-bottom: var(--ussd-space-3);
}

.ussd-panel-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--ussd-color-text-muted);
  margin-bottom: 2px;
}

.ussd-panel-value {
  display: block;
  font-size: var(--ussd-font-size-sm);
  color: var(--ussd-color-text-primary);
  word-break: break-word;
  white-space: pre-wrap;
}

.ussd-panel-actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  margin-top: var(--ussd-space-4);
  padding-top: var(--ussd-space-3);
  border-top: 1px solid var(--ussd-color-border);
}

.ussd-tree-panel-backdrop {
  display: none;
}

.ussd-badge-muted {
  background: var(--ussd-color-surface-secondary);
  color: var(--ussd-color-text-secondary);
  border: 1px solid var(--ussd-color-border);
}

@media (max-width: 1199.98px) {
  .ussd-kpi-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .ussd-tree-layout {
    flex-direction: column;
  }

  .ussd-tree-panel {
    flex: 1 1 auto;
    width: 100%;
    position: static;
    max-height: none;
  }
}

@media (max-width: 767.98px) {
  .ussd-kpi-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ussd-tree-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .ussd-tree-toolbar .ussd-toolbar-search,
  .ussd-tree-toolbar .ussd-toolbar-field {
    max-width: none;
    width: 100%;
  }

  .ussd-tree-result-count {
    margin-left: 0;
  }

  .ussd-tree {
    max-height: none;
  }

  .ussd-tree-status {
    display: none;
  }

  /* Desktop: panel always in layout. Mobile drawer visibility via .is-open only. */
  .ussd-tree-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: auto;
    width: min(100vw, 400px);
    max-height: 100vh;
    z-index: 1100;
    transform: translateX(100%);
    transition: transform 0.2s ease;
    padding: 0;
  }

  .ussd-tree-panel.is-open {
    transform: translateX(0);
  }

  .ussd-tree-panel:not(.is-open) {
    pointer-events: none;
  }

  .ussd-tree-panel-inner {
    height: 100%;
    border-radius: 0;
    border: 0;
    border-left: 1px solid var(--ussd-color-border);
  }

  .ussd-tree-panel-close {
    display: inline-flex;
  }

  .ussd-tree-panel-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.35);
    z-index: 1090;
  }

  .ussd-tree-list-nested {
    margin-left: 10px;
    padding-left: 8px;
  }
}

/* -------------------------------------------------------------------------- */
/* Simulation USSD                                                            */
/* -------------------------------------------------------------------------- */
.ussd-sim-page {
  max-width: 100%;
}

.ussd-sim-layout {
  display: grid;
  grid-template-columns: minmax(240px, 300px) minmax(280px, 360px) 1fr;
  gap: var(--ussd-space-4);
  align-items: start;
}

.ussd-sim-panel-title {
  margin: 0 0 var(--ussd-space-2);
  font-size: var(--ussd-font-size-md);
  font-weight: 600;
  color: var(--ussd-color-text-primary);
}

.ussd-sim-panel-hint {
  margin: 0 0 var(--ussd-space-3);
  font-size: var(--ussd-font-size-xs);
  color: var(--ussd-color-text-muted);
}

.ussd-sim-history {
  background: var(--ussd-color-surface);
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  padding: var(--ussd-space-4);
  box-shadow: var(--ussd-shadow-sm);
  max-height: calc(100vh - 180px);
  overflow: auto;
}

.ussd-sim-history-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ussd-sim-history-item {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--ussd-color-border);
}

.ussd-sim-history-item:last-child {
  border-bottom: 0;
}

.ussd-sim-history-index {
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--ussd-color-primary-soft);
  color: var(--ussd-color-primary);
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.ussd-sim-history-item.is-current .ussd-sim-history-index {
  background: var(--ussd-color-primary);
  color: #fff;
}

.ussd-sim-history-text {
  font-size: 12px;
  line-height: 1.4;
  color: var(--ussd-color-text-secondary);
  max-height: 4.2em;
  overflow: hidden;
}

.ussd-sim-history-item.is-current .ussd-sim-history-text {
  color: var(--ussd-color-text-primary);
  max-height: none;
}

.ussd-sim-history-reply {
  margin-top: 4px;
  font-size: 11px;
  color: var(--ussd-color-text-muted);
}

.ussd-sim-history-reply code {
  margin-left: 4px;
  font-weight: 600;
  color: var(--ussd-color-accent);
}

.ussd-sim-history-reply.is-waiting {
  color: var(--ussd-color-accent);
  font-style: italic;
}

.ussd-sim-tech-toggle {
  margin-top: var(--ussd-space-3);
  width: 100%;
  justify-content: center;
}

.ussd-sim-tech {
  margin-top: var(--ussd-space-3);
  padding-top: var(--ussd-space-3);
  border-top: 1px solid var(--ussd-color-border);
}

.ussd-sim-pre {
  margin: 0;
  padding: 8px;
  background: var(--ussd-color-surface-secondary);
  border-radius: var(--ussd-radius-sm);
  font-size: 11px;
  max-height: 140px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.ussd-sim-phone-wrap {
  display: flex;
  justify-content: center;
}

.ussd-sim-phone {
  width: 100%;
  max-width: 340px;
}

.ussd-sim-phone-bezel {
  background: linear-gradient(165deg, #1e293b 0%, #0f172a 100%);
  border-radius: 28px;
  padding: 16px 14px 18px;
  box-shadow: var(--ussd-shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
}

.ussd-sim-phone-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0 8px 10px;
  opacity: 0.85;
}

.ussd-sim-signal,
.ussd-sim-battery {
  width: 18px;
  height: 10px;
  border: 1px solid rgba(226, 232, 240, 0.6);
  border-radius: 2px;
  position: relative;
}

.ussd-sim-battery::after {
  content: '';
  position: absolute;
  right: -3px;
  top: 2px;
  width: 2px;
  height: 4px;
  background: rgba(226, 232, 240, 0.6);
}

.ussd-sim-phone-screen {
  background: #f8fafc;
  color: #0f172a;
  border-radius: 12px;
  min-height: 200px;
  max-height: 320px;
  overflow: auto;
  padding: 14px 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.45;
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.06);
}

.ussd-sim-line {
  white-space: pre-wrap;
  word-break: break-word;
}

.ussd-sim-phone-loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 160px;
  color: var(--ussd-color-text-secondary);
  font-family: var(--ussd-font-sans);
  font-size: 13px;
}

.ussd-sim-phone-ended {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--ussd-color-border);
  font-family: var(--ussd-font-sans);
  font-size: 12px;
  color: var(--ussd-color-text-secondary);
}

.ussd-sim-phone-input {
  margin-top: 12px;
  padding: 0 4px;
}

.ussd-sim-input-row {
  display: flex;
  gap: 8px;
}

.ussd-sim-input {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 16px;
  text-align: center;
  letter-spacing: 0.04em;
}

.ussd-sim-input-hint {
  margin: 6px 4px 0;
  font-size: 11px;
  color: rgba(226, 232, 240, 0.65);
}

.ussd-error-inline {
  margin-top: 8px;
  font-size: 12px;
  color: #fca5a5;
}

.ussd-sim-keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 14px;
  padding: 0 4px;
}

.ussd-sim-key {
  height: 42px;
  border: 0;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: #f8fafc;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.12s ease;
}

.ussd-sim-key:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.16);
}

.ussd-sim-key:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.ussd-sim-key-action {
  font-size: 13px;
  background: rgba(255, 255, 255, 0.05);
}

.ussd-sim-key-send {
  background: var(--ussd-color-accent);
  color: #fff;
}

.ussd-sim-key-send:hover:not(:disabled) {
  background: #0c6478;
}

.ussd-sim-trail {
  background: var(--ussd-color-surface);
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  padding: var(--ussd-space-4);
  box-shadow: var(--ussd-shadow-sm);
  min-width: 0;
}

.ussd-sim-trail-scroll {
  display: flex;
  gap: var(--ussd-space-3);
  overflow-x: auto;
  padding-bottom: var(--ussd-space-2);
  scroll-snap-type: x proximity;
}

.ussd-sim-step {
  flex: 0 0 240px;
  scroll-snap-align: start;
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  background: var(--ussd-color-surface-secondary);
  overflow: hidden;
  opacity: 0.72;
}

.ussd-sim-step.is-current {
  opacity: 1;
  border-color: var(--ussd-color-primary);
  box-shadow: 0 0 0 2px var(--ussd-color-primary-soft);
}

.ussd-sim-step-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  background: var(--ussd-color-surface);
  border-bottom: 1px solid var(--ussd-color-border);
  font-size: 12px;
  font-weight: 600;
}

.ussd-sim-step-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ussd-color-accent);
  background: var(--ussd-color-accent-soft);
  padding: 2px 6px;
  border-radius: 999px;
}

.ussd-sim-step-body {
  padding: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  line-height: 1.4;
  max-height: 200px;
  overflow: auto;
  white-space: pre-wrap;
  color: var(--ussd-color-text-primary);
  background: #fff;
}

.ussd-sim-step-foot {
  padding: 8px 12px;
  border-top: 1px solid var(--ussd-color-border);
  font-size: 11px;
  color: var(--ussd-color-text-muted);
  background: var(--ussd-color-surface);
}

.ussd-sim-step-foot code {
  margin-left: 6px;
  font-weight: 700;
  color: var(--ussd-color-primary);
}

.ussd-sim-empty {
  font-size: var(--ussd-font-size-sm);
  color: var(--ussd-color-text-muted);
  padding: var(--ussd-space-3) 0;
}

.ussd-badge-warning {
  background: var(--ussd-color-warning-soft);
  color: var(--ussd-color-warning);
  border: 1px solid transparent;
}

.ussd-error-state .ussd-btn {
  margin-top: var(--ussd-space-3);
}

@media (max-width: 1199.98px) {
  .ussd-sim-layout {
    grid-template-columns: 1fr;
  }

  .ussd-sim-history {
    max-height: 280px;
    order: 2;
  }

  .ussd-sim-phone-wrap {
    order: 1;
  }

  .ussd-sim-trail {
    order: 3;
  }
}

@media (max-width: 575.98px) {
  .ussd-sim-phone {
    max-width: 100%;
  }

  .ussd-sim-step {
    flex-basis: 85%;
  }
}

/* -------------------------------------------------------------------------- */
/* LOT 4 — Analytics                                                          */
/* -------------------------------------------------------------------------- */
.ussd-analytics-page {
  max-width: 100%;
}

.ussd-analytics-filters {
  padding: var(--ussd-space-4);
  margin-bottom: var(--ussd-space-4);
}

.ussd-analytics-filters-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ussd-space-3);
  align-items: flex-end;
}

.ussd-analytics-daterange {
  min-width: 220px;
  flex: 1 1 220px;
}

.ussd-analytics-filters-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding-bottom: 2px;
}

.ussd-analytics-kpi-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--ussd-space-3);
  margin-bottom: var(--ussd-space-4);
}

.ussd-analytics-kpi {
  background: var(--ussd-color-surface);
  border: 1px solid var(--ussd-color-border);
  border-radius: var(--ussd-radius-md);
  padding: var(--ussd-space-3) var(--ussd-space-4);
  box-shadow: var(--ussd-shadow-sm);
  min-width: 0;
}

.ussd-analytics-kpi-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--ussd-color-text-muted);
  margin-bottom: 4px;
}

.ussd-analytics-kpi-value {
  display: block;
  font-size: var(--ussd-font-size-xl);
  font-weight: 700;
  color: var(--ussd-color-primary);
  line-height: 1.2;
}

.ussd-analytics-kpi-hint {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  color: var(--ussd-color-text-muted);
}

.ussd-analytics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--ussd-space-4);
}

.ussd-chart-main,
.ussd-analytics-table-card {
  grid-column: 1 / -1;
}

.ussd-chart-card,
.ussd-analytics-table-card {
  padding: 0;
  overflow: hidden;
}

.ussd-chart-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--ussd-space-3);
  padding: var(--ussd-space-3) var(--ussd-space-4);
  border-bottom: 1px solid var(--ussd-color-border);
}

.ussd-chart-title {
  margin: 0;
  font-size: var(--ussd-font-size-md);
  font-weight: 600;
}

.ussd-chart-desc {
  margin: 4px 0 0;
  font-size: var(--ussd-font-size-xs);
  color: var(--ussd-color-text-secondary);
}

.ussd-chart-body {
  position: relative;
  height: 280px;
  padding: var(--ussd-space-3) var(--ussd-space-4) var(--ussd-space-4);
}

.ussd-chart-body-sm {
  height: 240px;
}

.ussd-chart-body canvas {
  max-width: 100%;
}

.ussd-chart-empty {
  padding: var(--ussd-space-6);
  text-align: center;
  color: var(--ussd-color-text-muted);
  font-size: var(--ussd-font-size-sm);
}

.ussd-analytics-table-toolbar {
  padding: var(--ussd-space-3) var(--ussd-space-4) 0;
}

.ussd-analytics-table-card .ussd-table-wrap {
  padding: 0 var(--ussd-space-2) var(--ussd-space-3);
}

.ussd-analytics-table-card .ussd-empty {
  margin: var(--ussd-space-4);
}

.ussd-msisdn {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.ussd-analytics-empty {
  margin-bottom: var(--ussd-space-4);
}

.ussd-error-inline-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: var(--ussd-space-3);
}

@media (max-width: 991.98px) {
  .ussd-analytics-kpi-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ussd-analytics-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 575.98px) {
  .ussd-analytics-kpi-row {
    grid-template-columns: 1fr;
  }

  .ussd-analytics-filters-row {
    flex-direction: column;
    align-items: stretch;
  }

  .ussd-chart-body,
  .ussd-chart-body-sm {
    height: 220px;
  }
}

/* -------------------------------------------------------------------------- */
/* A2.2 — Path Analytics                                                      */
/* -------------------------------------------------------------------------- */
.ussd-path-section {
  margin-top: var(--ussd-space-6);
  padding-top: var(--ussd-space-5);
  border-top: 1px solid var(--ussd-color-border);
}

.ussd-path-section-header {
  margin-bottom: var(--ussd-space-4);
}

.ussd-section-title {
  margin: 0;
  font-size: var(--ussd-font-size-lg, 1.25rem);
  font-weight: 700;
  color: var(--ussd-color-text);
}

.ussd-section-desc {
  margin: 4px 0 0;
  font-size: var(--ussd-font-size-sm);
  color: var(--ussd-color-text-secondary);
  max-width: 52rem;
}

.ussd-path-kpi-row {
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.ussd-kpi-unknown {
  color: var(--ussd-color-text-muted);
  letter-spacing: 0.08em;
}

.ussd-path-loading {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: var(--ussd-space-4);
  color: var(--ussd-color-text-secondary);
  font-size: var(--ussd-font-size-sm);
}

.ussd-path-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: var(--ussd-space-4);
  border-bottom: 1px solid var(--ussd-color-border);
  padding-bottom: 0;
}

.ussd-path-tab {
  appearance: none;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 10px 14px;
  font-size: var(--ussd-font-size-sm);
  font-weight: 600;
  color: var(--ussd-color-text-secondary);
  cursor: pointer;
  border-radius: var(--ussd-radius-sm) var(--ussd-radius-sm) 0 0;
}

.ussd-path-tab:hover {
  color: var(--ussd-color-primary);
  background: rgba(15, 23, 42, 0.03);
}

.ussd-path-tab.is-active {
  color: var(--ussd-color-primary);
  border-bottom-color: var(--ussd-color-primary);
}

.ussd-path-tab-panel {
  min-height: 120px;
}

.ussd-path-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--ussd-space-4);
}

.ussd-path-card {
  padding: 0;
  overflow: hidden;
  min-width: 0;
}

.ussd-path-card-full {
  grid-column: 1 / -1;
}

.ussd-path-card-body {
  padding: var(--ussd-space-3) var(--ussd-space-4) var(--ussd-space-4);
}

.ussd-path-empty-soft {
  padding: var(--ussd-space-4);
  color: var(--ussd-color-text-secondary);
  font-size: var(--ussd-font-size-sm);
}

.ussd-path-empty-soft p {
  margin: 0 0 6px;
}

.ussd-path-hint {
  font-size: 12px;
}

.ussd-path-empty {
  margin-bottom: var(--ussd-space-3);
}

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

.ussd-banner {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--ussd-radius-md);
  margin-bottom: var(--ussd-space-3);
  font-size: var(--ussd-font-size-sm);
}

.ussd-banner-warn {
  background: #fff8e8;
  border: 1px solid #f0d48a;
  color: #6b5310;
}

.ussd-info-tip {
  margin-left: 6px;
  font-size: 12px;
  color: var(--ussd-color-text-muted);
  cursor: help;
}

/* Path rows */
.ussd-path-row,
.ussd-trans-row,
.ussd-end-row {
  padding: 12px 0;
  border-bottom: 1px solid var(--ussd-color-border);
}

.ussd-path-row:last-child,
.ussd-trans-row:last-child,
.ussd-end-row:last-child {
  border-bottom: none;
}

.ussd-path-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.ussd-path-row-rank {
  font-weight: 700;
  color: var(--ussd-color-primary);
  font-size: var(--ussd-font-size-sm);
  padding-top: 2px;
}

.ussd-path-chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 6px;
  line-height: 1.45;
}

.ussd-path-chain-step {
  font-weight: 600;
  font-size: var(--ussd-font-size-sm);
  color: var(--ussd-color-text);
  max-width: 14rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: inline-block;
  vertical-align: bottom;
  word-break: normal;
}

.ussd-path-chain-arrow {
  color: var(--ussd-color-text-muted);
  font-weight: 500;
  flex-shrink: 0;
}

.ussd-path-row-meta,
.ussd-trans-metrics,
.ussd-end-metrics {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  margin-top: 6px;
  font-size: 12px;
  color: var(--ussd-color-text-secondary);
}

.ussd-path-share-value {
  font-weight: 700;
  color: var(--ussd-color-primary);
}

.ussd-path-expand {
  padding-top: var(--ussd-space-3);
  text-align: center;
}

/* Funnel */
.ussd-funnel-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ussd-funnel-step {
  padding: 12px 0;
  border-bottom: 1px solid var(--ussd-color-border);
}

.ussd-funnel-step:last-child {
  border-bottom: none;
}

.ussd-funnel-step-head {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 4px;
}

.ussd-funnel-step-index {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ussd-color-text-muted);
}

.ussd-funnel-step-label {
  font-weight: 600;
  font-size: var(--ussd-font-size-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ussd-funnel-step-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: baseline;
  font-size: 13px;
  margin-bottom: 6px;
}

.ussd-funnel-pct {
  font-weight: 700;
  color: var(--ussd-color-primary);
}

.ussd-funnel-bar-track {
  height: 8px;
  background: rgba(15, 23, 42, 0.06);
  border-radius: 999px;
  overflow: hidden;
}

.ussd-funnel-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--ussd-color-primary), #0f766e);
  border-radius: 999px;
}

.ussd-funnel-variation {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--ussd-color-text-secondary);
}

.ussd-hbar-track {
  margin-top: 8px;
  height: 6px;
  background: rgba(15, 23, 42, 0.06);
  border-radius: 999px;
  overflow: hidden;
}

.ussd-hbar-fill {
  height: 100%;
  background: var(--ussd-color-primary);
  border-radius: 999px;
  min-width: 0;
  transition: width 0.25s ease;
}

.ussd-hbar-fill-accent {
  background: #0f766e;
}

.ussd-hbar-fill-muted {
  background: #64748b;
}

.ussd-trans-labels {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  font-size: var(--ussd-font-size-sm);
  font-weight: 600;
}

.ussd-trans-from,
.ussd-trans-to {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  word-break: normal;
}

.ussd-end-labels {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  align-items: baseline;
}

.ussd-node-name {
  font-weight: 600;
  font-size: var(--ussd-font-size-sm);
  word-break: normal;
}

/* Path analytics — nodes table: give label room, no char-by-char wrap */
.ussd-path-grid-nodes {
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.9fr);
}

.ussd-path-nodes-table {
  table-layout: fixed;
  width: 100%;
}

.ussd-path-nodes-table .ussd-col-path-node {
  width: 42%;
  min-width: 12rem;
  max-width: 0; /* with table-layout:fixed, allows ellipsis inside */
}

.ussd-path-nodes-table .ussd-col-path-num {
  width: 14.5%;
  text-align: right;
  white-space: nowrap;
  vertical-align: middle;
  font-variant-numeric: tabular-nums;
}

.ussd-path-nodes-table thead th.ussd-col-path-num {
  white-space: normal;
  line-height: 1.25;
  hyphens: auto;
}

.ussd-path-nodes-table .ussd-col-path-node .ussd-node-name {
  display: block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  word-break: normal;
  overflow-wrap: normal;
}

.ussd-path-table-desktop {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.ussd-path-table-desktop .ussd-table th,
.ussd-path-table-desktop .ussd-table td {
  vertical-align: middle;
}

.ussd-end-labels .ussd-node-name {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  word-break: normal;
}

/* Nodes table / cards */
.ussd-path-node-cards {
  display: none;
}

.ussd-path-node-card {
  padding: 12px 0;
  border-bottom: 1px solid var(--ussd-color-border);
}

.ussd-path-node-card:last-child {
  border-bottom: none;
}

.ussd-path-node-card h4 {
  margin: 0 0 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ussd-path-node-stats {
  list-style: none;
  margin: 0 0 8px;
  padding: 0;
  font-size: 12px;
  color: var(--ussd-color-text-secondary);
}

.ussd-path-node-stats li {
  margin: 2px 0;
}

@media (max-width: 1199.98px) {
  .ussd-path-grid-nodes {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 991.98px) {
  .ussd-path-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767.98px) {
  .ussd-path-table-desktop {
    display: none;
  }

  .ussd-path-node-cards {
    display: block;
  }

  .ussd-path-tab {
    flex: 1 1 auto;
    text-align: center;
    padding: 10px 8px;
    font-size: 12px;
  }
}

@media (max-width: 575.98px) {
  .ussd-path-kpi-row {
    grid-template-columns: 1fr 1fr;
  }
}