:root {
  --av-primary: #00b4d8;
  --av-primary-dark: #0096c7;
  --av-primary-light: #48cae4;
  --av-accent: #90e0ef;
  --av-surface: #1e2a3a;
  --av-surface-light: #253548;
  --av-surface-lighter: #2d4059;
  --av-border: rgba(255, 255, 255, 0.06);
  --av-text: #e0e6ed;
  --av-text-muted: #8a9bb5;
  --av-success: #2ecc71;
  --av-danger: #e74c3c;
  --av-warning: #f39c12;
  --av-info: #3498db;
  --av-radius: 8px;
  --av-transition: 0.2s ease;
  --av-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
  --av-glass: rgba(255, 255, 255, 0.04);
}

body {
  font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.main-header {
  border-bottom: 1px solid var(--av-border) !important;
  backdrop-filter: blur(12px);
}

.main-header .navbar {
  background: linear-gradient(135deg, var(--av-surface) 0%, var(--av-surface-light) 100%) !important;
}

.brand-link {
  border-bottom: 1px solid var(--av-border) !important;
  padding: 14px 12px !important;
  transition: background var(--av-transition);
}

.brand-link:hover {
  background: var(--av-glass) !important;
}

.brand-link .brand-image {
  border: 2px solid var(--av-primary) !important;
  box-shadow: 0 0 8px rgba(0, 180, 216, 0.3);
}

.main-sidebar {
  background: linear-gradient(180deg, #131d2a 0%, #0f1923 100%) !important;
}

.sidebar .nav-sidebar > .nav-item > .nav-link {
  border-radius: var(--av-radius) !important;
  margin: 2px 8px !important;
  padding: 8px 12px !important;
  transition: all var(--av-transition);
  color: var(--av-text-muted) !important;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.sidebar .nav-sidebar > .nav-item > .nav-link:hover {
  background: var(--av-glass) !important;
  color: var(--av-text) !important;
}

.sidebar .nav-sidebar > .nav-item > .nav-link.active {
  background: linear-gradient(135deg, var(--av-primary-dark), var(--av-primary)) !important;
  color: #fff !important;
  box-shadow: 0 4px 15px rgba(0, 180, 216, 0.3);
}

.sidebar .nav-sidebar > .nav-item > .nav-link > .nav-icon {
  font-size: 1rem;
  width: 1.6rem;
  text-align: center;
  margin-right: 8px;
  opacity: 0.8;
}

.sidebar .nav-sidebar > .nav-item > .nav-link.active > .nav-icon {
  opacity: 1;
}

.nav-header {
  color: var(--av-primary-light) !important;
  font-size: 0.7rem !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 16px 16px 4px !important;
  font-weight: 700;
}

.nav-treeview > .nav-item > .nav-link {
  padding: 6px 12px 6px 40px !important;
  font-size: 0.825rem;
  color: var(--av-text-muted) !important;
  border-radius: 6px !important;
  margin: 1px 12px !important;
  transition: all var(--av-transition);
}

.nav-treeview > .nav-item > .nav-link:hover {
  color: var(--av-text) !important;
  background: var(--av-glass) !important;
}

.nav-treeview > .nav-item > .nav-link.active {
  color: var(--av-primary-light) !important;
  background: rgba(0, 180, 216, 0.1) !important;
}

.content-wrapper {
  background: #0f1923 !important;
}

.content-header h1 {
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.card {
  background: var(--av-surface) !important;
  border: 1px solid var(--av-border) !important;
  border-radius: var(--av-radius) !important;
  box-shadow: var(--av-shadow) !important;
  overflow: hidden;
}

.card-header {
  background: var(--av-surface-light) !important;
  border-bottom: 1px solid var(--av-border) !important;
  padding: 14px 20px !important;
  font-weight: 600;
}

.card-body {
  padding: 20px !important;
}

fieldset {
  border: 1px solid var(--av-border) !important;
  border-radius: var(--av-radius) !important;
  background: var(--av-glass) !important;
  margin-bottom: 16px !important;
  padding: 16px !important;
}

fieldset .fieldBox,
fieldset .form-row {
  padding: 6px 0;
}

.module h2,
.module caption,
.inline-group h2 {
  background: linear-gradient(135deg, var(--av-surface-light), var(--av-surface-lighter)) !important;
  color: var(--av-text) !important;
  border-radius: var(--av-radius) var(--av-radius) 0 0 !important;
  padding: 12px 16px !important;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-bottom: 2px solid var(--av-primary) !important;
}

table {
  border-collapse: separate !important;
  border-spacing: 0 !important;
}

#result_list table {
  background: var(--av-surface) !important;
  border-radius: var(--av-radius) !important;
  overflow: hidden;
}

#result_list th {
  background: var(--av-surface-light) !important;
  color: var(--av-text-muted) !important;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  padding: 10px 14px !important;
  border-bottom: 2px solid var(--av-border) !important;
  white-space: nowrap;
}

#result_list td {
  padding: 10px 14px !important;
  border-bottom: 1px solid var(--av-border) !important;
  font-size: 0.875rem;
  transition: background var(--av-transition);
  vertical-align: middle;
}

#result_list tr:hover td {
  background: var(--av-glass) !important;
}

#result_list tr:last-child td {
  border-bottom: none !important;
}

.btn-primary,
.btn-info {
  background: linear-gradient(135deg, var(--av-primary-dark), var(--av-primary)) !important;
  border: none !important;
  border-radius: 6px !important;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 8px 18px !important;
  transition: all var(--av-transition);
  box-shadow: 0 2px 8px rgba(0, 180, 216, 0.2);
}

.btn-primary:hover,
.btn-info:hover {
  background: linear-gradient(135deg, var(--av-primary), var(--av-primary-light)) !important;
  box-shadow: 0 4px 16px rgba(0, 180, 216, 0.35);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, #1ea85a, var(--av-success)) !important;
  border: none !important;
  border-radius: 6px !important;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(46, 204, 113, 0.2);
}

.btn-danger {
  background: linear-gradient(135deg, #c0392b, var(--av-danger)) !important;
  border: none !important;
  border-radius: 6px !important;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(231, 76, 60, 0.2);
}

.btn-outline-secondary {
  border: 1px solid var(--av-text-muted) !important;
  color: var(--av-text-muted) !important;
  border-radius: 6px !important;
  font-weight: 500;
  transition: all var(--av-transition);
}

.btn-outline-secondary:hover {
  background: var(--av-glass) !important;
  color: var(--av-text) !important;
  border-color: var(--av-text) !important;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="url"],
input[type="number"],
input[type="search"],
input[type="tel"],
textarea,
select,
.vTextField,
.vURLField {
  background: var(--av-surface) !important;
  border: 1px solid var(--av-border) !important;
  border-radius: 6px !important;
  color: var(--av-text) !important;
  padding: 8px 12px !important;
  transition: border-color var(--av-transition), box-shadow var(--av-transition);
  font-size: 0.875rem;
}

input:focus,
textarea:focus,
select:focus,
.vTextField:focus {
  border-color: var(--av-primary) !important;
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15) !important;
  outline: none !important;
}

.breadcrumb {
  background: transparent !important;
  padding: 0 !important;
  margin-bottom: 8px !important;
  font-size: 0.825rem;
}

.breadcrumb a {
  color: var(--av-primary-light) !important;
  text-decoration: none;
  transition: color var(--av-transition);
}

.breadcrumb a:hover {
  color: var(--av-accent) !important;
}

.paginator {
  background: var(--av-surface) !important;
  border: 1px solid var(--av-border) !important;
  border-radius: var(--av-radius) !important;
  padding: 10px 16px !important;
  margin-top: 12px;
}

.paginator a {
  color: var(--av-primary-light) !important;
  padding: 4px 10px;
  border-radius: 4px;
  transition: background var(--av-transition);
}

.paginator a:hover {
  background: var(--av-glass) !important;
}

.help,
.help-text {
  color: var(--av-text-muted) !important;
  font-size: 0.8rem;
  margin-top: 4px;
}

.messagelist li {
  border-radius: var(--av-radius) !important;
  padding: 12px 20px !important;
  margin-bottom: 8px !important;
  font-weight: 500;
  border: none !important;
}

.messagelist .success {
  background: rgba(46, 204, 113, 0.12) !important;
  color: var(--av-success) !important;
  border-left: 4px solid var(--av-success) !important;
}

.messagelist .error {
  background: rgba(231, 76, 60, 0.12) !important;
  color: var(--av-danger) !important;
  border-left: 4px solid var(--av-danger) !important;
}

.messagelist .warning {
  background: rgba(243, 156, 18, 0.12) !important;
  color: var(--av-warning) !important;
  border-left: 4px solid var(--av-warning) !important;
}

.messagelist .info {
  background: rgba(52, 152, 219, 0.12) !important;
  color: var(--av-info) !important;
  border-left: 4px solid var(--av-info) !important;
}

.submit-row {
  background: var(--av-surface-light) !important;
  border: 1px solid var(--av-border) !important;
  border-radius: var(--av-radius) !important;
  padding: 14px 20px !important;
  margin-top: 16px;
}

.submit-row input[type="submit"],
.submit-row button {
  border-radius: 6px !important;
  font-weight: 600;
  padding: 10px 24px !important;
  text-transform: none;
  letter-spacing: 0.01em;
  transition: all var(--av-transition);
}

.submit-row .default {
  background: linear-gradient(135deg, var(--av-primary-dark), var(--av-primary)) !important;
  border: none !important;
  box-shadow: 0 2px 8px rgba(0, 180, 216, 0.25);
}

.submit-row .default:hover {
  box-shadow: 0 4px 16px rgba(0, 180, 216, 0.4);
  transform: translateY(-1px);
}

.deletelink,
.deletelink-box a {
  color: var(--av-danger) !important;
  font-weight: 500;
}

.changelist-form-container {
  background: transparent !important;
}

#changelist-filter {
  background: var(--av-surface) !important;
  border: 1px solid var(--av-border) !important;
  border-radius: var(--av-radius) !important;
  padding: 16px !important;
}

#changelist-filter h2 {
  color: var(--av-primary-light) !important;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  margin-bottom: 8px;
}

#changelist-filter h3 {
  color: var(--av-text) !important;
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 12px;
}

#changelist-filter li {
  padding: 3px 0;
}

#changelist-filter li a {
  color: var(--av-text-muted) !important;
  transition: color var(--av-transition);
  font-size: 0.85rem;
}

#changelist-filter li a:hover {
  color: var(--av-primary-light) !important;
}

#changelist-filter li.selected a {
  color: var(--av-primary) !important;
  font-weight: 600;
}

.actions {
  background: var(--av-surface) !important;
  border: 1px solid var(--av-border) !important;
  border-radius: var(--av-radius) !important;
  padding: 10px 14px !important;
  margin-bottom: 12px;
}

.actions select {
  min-width: 200px;
}

.actions .button {
  border-radius: 6px !important;
  padding: 6px 16px !important;
  font-size: 0.85rem;
}

a {
  color: var(--av-primary-light);
  transition: color var(--av-transition);
}

a:hover {
  color: var(--av-accent);
}

#content a:not(.btn):not(.button) {
  color: var(--av-primary-light);
}

#content a:not(.btn):not(.button):hover {
  color: var(--av-accent);
}

.login-box,
.login-card-body {
  background: var(--av-surface) !important;
  border-radius: 12px !important;
  border: 1px solid var(--av-border) !important;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4) !important;
}

.login-page {
  background: linear-gradient(135deg, #0a1628 0%, #0f1923 50%, #131d2a 100%) !important;
}

.small-box {
  border-radius: var(--av-radius) !important;
  border: 1px solid var(--av-border) !important;
  overflow: hidden;
  transition: transform var(--av-transition), box-shadow var(--av-transition);
}

.small-box:hover {
  transform: translateY(-2px);
  box-shadow: var(--av-shadow);
}

.info-box {
  background: var(--av-surface) !important;
  border: 1px solid var(--av-border) !important;
  border-radius: var(--av-radius) !important;
  box-shadow: var(--av-shadow) !important;
}

.main-footer {
  background: var(--av-surface) !important;
  border-top: 1px solid var(--av-border) !important;
  color: var(--av-text-muted) !important;
  font-size: 0.8rem;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--av-surface-lighter);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--av-primary-dark);
}

.tab-content {
  background: var(--av-surface) !important;
  border: 1px solid var(--av-border) !important;
  border-top: none !important;
  border-radius: 0 0 var(--av-radius) var(--av-radius) !important;
  padding: 20px !important;
}

.nav-tabs .nav-link {
  color: var(--av-text-muted) !important;
  border: none !important;
  font-weight: 500;
  padding: 10px 18px !important;
  transition: all var(--av-transition);
  border-radius: var(--av-radius) var(--av-radius) 0 0 !important;
}

.nav-tabs .nav-link:hover {
  color: var(--av-text) !important;
  background: var(--av-glass) !important;
}

.nav-tabs .nav-link.active {
  background: var(--av-surface) !important;
  color: var(--av-primary) !important;
  border-bottom: 2px solid var(--av-primary) !important;
  font-weight: 600;
}

.badge {
  font-weight: 600;
  padding: 4px 10px !important;
  border-radius: 4px !important;
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}

.dropdown-menu {
  background: var(--av-surface-light) !important;
  border: 1px solid var(--av-border) !important;
  border-radius: var(--av-radius) !important;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3) !important;
  padding: 6px !important;
}

.dropdown-item {
  color: var(--av-text) !important;
  border-radius: 4px !important;
  padding: 8px 14px !important;
  font-size: 0.875rem;
  transition: background var(--av-transition);
}

.dropdown-item:hover {
  background: var(--av-glass) !important;
  color: var(--av-primary-light) !important;
}

.user-panel .info a {
  color: var(--av-text) !important;
  font-weight: 500;
}

.custom-checkbox .custom-control-input:checked ~ .custom-control-label::before {
  background-color: var(--av-primary) !important;
  border-color: var(--av-primary) !important;
}

.custom-switch .custom-control-input:checked ~ .custom-control-label::before {
  background-color: var(--av-primary) !important;
  border-color: var(--av-primary) !important;
}

.select2-container--default .select2-selection--single,
.select2-container--default .select2-selection--multiple {
  background: var(--av-surface) !important;
  border: 1px solid var(--av-border) !important;
  border-radius: 6px !important;
  color: var(--av-text) !important;
}

.select2-container--default .select2-results__option--highlighted {
  background: var(--av-primary) !important;
}

.select2-dropdown {
  background: var(--av-surface-light) !important;
  border: 1px solid var(--av-border) !important;
  border-radius: 6px !important;
}