/* ==========================================================================
   Header CSS Variables - Оптимизированная версия
   ========================================================================== */

:root {
  /* Цвета */
  --header-primary: #007F81;
  --header-secondary: #004f51;
  --header-danger: #dc2626;
  --header-danger-hover: #b91c1c;

  /* Фоны Light Theme */
  --header-bg: linear-gradient(145deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%);
  --header-bg-tablet: linear-gradient(145deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 250, 252, 0.98) 100%);
  --header-bg-mobile: linear-gradient(145deg, rgba(255, 255, 255, 0.99) 0%, rgba(248, 250, 252, 0.99) 100%);
  --header-dropdown-bg: linear-gradient(145deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 250, 252, 0.98) 100%);
  --header-user-status-bg: #007f8117;
  --header-theme-btn-bg: linear-gradient(145deg, rgba(255, 255, 255, 0.8) 0%, rgba(248, 250, 252, 0.8) 100%);
  --header-theme-btn-hover: linear-gradient(145deg, rgba(0, 127, 129, 0.1) 0%, rgba(0, 127, 129, 0.15) 100%);

  /* Эффекты */
  --header-blur: blur(20px);
  --header-blur-tablet: blur(25px);
  --header-blur-mobile: blur(30px);
  --header-blur-light: blur(10px);

  /* Границы и тени */
  --header-border: 1px solid rgba(0, 127, 129, 0.15);
  --header-border-tablet: 2px solid rgba(0, 127, 129, 0.3);
  --header-border-mobile: 2px solid rgba(0, 127, 129, 0.4);
  --header-shadow: 0 2px 20px rgba(0, 127, 129, 0.08);
  --header-shadow-tablet: 0 4px 20px rgba(0, 127, 129, 0.1);
  --header-shadow-mobile: 0 6px 25px rgba(0, 127, 129, 0.12);
  --header-dropdown-shadow: 0 8px 32px rgba(0, 127, 129, 0.12), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;

  /* Размеры */
  --header-min-height: 80px;
  --header-border-radius: 12px;
  --header-border-radius-tablet: 10px;
  --header-border-radius-mobile: 8px;
  --header-dropdown-width-min: 220px;
  --header-dropdown-width-max: 280px;
  --header-theme-btn-size: 42px;

  /* Анимации */
  --header-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --header-transition-dropdown: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-Index */
  --header-z-index: 1050;
  --header-dropdown-z-index: 9999;

  /* Touch размеры */
  --header-touch-min-height: 44px;
  --header-touch-min-height-mobile: 48px;
}

/* Тёмная тема переменные */
[data-theme="dark"] {
  --header-bg: linear-gradient(145deg, rgba(30, 41, 59, 0.95) 0%, rgba(15, 23, 42, 0.95) 100%);
  --header-bg-tablet: linear-gradient(145deg, rgba(30, 41, 59, 0.98) 0%, rgba(15, 23, 42, 0.98) 100%);
  --header-bg-mobile: linear-gradient(145deg, rgba(30, 41, 59, 0.99) 0%, rgba(15, 23, 42, 0.99) 100%);
  --header-dropdown-bg: linear-gradient(145deg, rgba(30, 41, 59, 0.98) 0%, rgba(15, 23, 42, 0.98) 100%);
  --header-primary: rgba(226, 232, 240, 0.9);
  --header-secondary: rgba(226, 232, 240, 1);
  --header-danger: rgba(248, 113, 113, 0.9);
  --header-danger-hover: rgba(248, 113, 113, 1);
  --header-border: 1px solid rgba(148, 163, 184, 0.2);
  --header-dropdown-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(148, 163, 184, 0.1) inset;
}

/* ==========================================================================
   Header Styles - Оптимизированная версия
   ========================================================================== */

.custom-navbar {
  min-height: var(--header-min-height);
  background: var(--header-bg) !important;
  border-bottom: var(--header-border) !important;
  box-shadow: var(--header-shadow) !important;
  z-index: var(--header-z-index) !important;
  /* Lazy loading blur - применяется только при необходимости */
}

.custom-navbar.header-enhanced {
  backdrop-filter: var(--header-blur) !important;
  -webkit-backdrop-filter: var(--header-blur) !important;
}

.user-status {
  color: var(--header-primary) !important;
  font-weight: var(--fw-semibold);
  font-family: var(--font-primary);
  background: var(--header-user-status-bg);
  border-radius: 1rem;
  padding: 0.25em 1em;
  font-size: 1.25rem;
  letter-spacing: var(--ls-wide);
  box-shadow: 0 1px 4px var(--header-user-status-bg);
  transition: var(--header-transition-fast);
}

/* Цвет ссылок и бренда */
.custom-navbar .navbar-brand,
.custom-navbar .nav-link,
.custom-navbar .dropdown-toggle {
  color: var(--header-primary) !important;
  transition: var(--header-transition-fast);
  font-size: 1.5rem;
}

.custom-navbar .navbar-brand {
  font-family: var(--font-headings);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-wide);
}

.custom-navbar .nav-link {
  font-family: var(--font-primary);
  font-weight: var(--fw-medium);
}

/* Активный пункт меню */
.custom-navbar .nav-link.active {
  font-weight: var(--fw-bold);
  font-family: var(--font-primary);
  font-size: 1.5rem;
  text-decoration: underline;
  color: var(--header-secondary) !important;
}

/* Выпадающее меню - Lazy enhanced */
.custom-navbar .dropdown-menu {
  padding: 0.75rem 0;
  background: var(--header-dropdown-bg) !important;
  border: var(--header-border) !important;
  border-radius: var(--header-border-radius) !important;
  z-index: var(--header-dropdown-z-index) !important;
  /* Базовые стили без сложных эффектов */
}

.custom-navbar .dropdown-menu.dropdown-enhanced {
  box-shadow: var(--header-dropdown-shadow) !important;
  backdrop-filter: var(--header-blur-light) !important;
  -webkit-backdrop-filter: var(--header-blur-light) !important;
}

.custom-navbar .dropdown-item {
  color: var(--header-primary);
  transition: var(--header-transition);
  font-size: 1.4rem;
  font-family: var(--font-primary);
  font-weight: var(--fw-normal);
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  margin: 0 0.5rem;
}

/* Убираем черное выделение для nav-link */
.custom-navbar .nav-link:hover,
.custom-navbar .nav-link:focus {
  background: none !important;
  color: var(--header-secondary) !important;
  text-decoration: none !important;
}

/* Hover для выпадающего меню */
.custom-navbar .dropdown-item:hover,
.custom-navbar .dropdown-item:focus {
  background: linear-gradient(135deg, rgba(0, 127, 129, 0.08) 0%, rgba(0, 127, 129, 0.15) 100%) !important;
  color: var(--header-secondary) !important;
  transform: translateX(4px) !important;
  box-shadow: 0 4px 12px rgba(0, 127, 129, 0.15) !important;
}

/* Кнопка переключения мобильного меню */
.custom-navbar .navbar-toggler {
  border: 2px solid var(--header-primary);
  transition: var(--header-transition-fast);
}

.custom-navbar .navbar-toggler:focus {
  text-decoration: none;
  outline: 0;
  box-shadow: 0 0 0 0.25rem rgba(0, 127, 129, 0.5);
}

.custom-navbar .navbar-toggler-icon {
  background-image: url("../../images/toggler-icon.svg");
}

/* Кнопка переключения темы - оптимизированная */
.theme-toggle-btn {
  background: var(--header-theme-btn-bg);
  border: var(--header-border);
  border-radius: 50%;
  width: var(--header-theme-btn-size);
  height: var(--header-theme-btn-size);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: var(--header-transition);
  /* Убрали тяжёлые эффекты по умолчанию */
}

.theme-toggle-btn.btn-enhanced {
  box-shadow: 0 2px 8px rgba(0, 127, 129, 0.1);
  backdrop-filter: var(--header-blur-light);
  -webkit-backdrop-filter: var(--header-blur-light);
}

.theme-toggle-btn:hover {
  background: var(--header-theme-btn-hover);
  border-color: rgba(0, 127, 129, 0.3);
  transform: translateY(-1px);
}

.theme-toggle-btn:hover.btn-enhanced {
  box-shadow: 0 4px 12px rgba(0, 127, 129, 0.2);
}

/* ==========================================================================
   Authentication Elements - Консолидированные стили
   ========================================================================== */

.auth-dropdown .btn-link {
  border: none !important;
  color: var(--header-primary) !important;
  text-decoration: none;
  padding: 0.25rem;
  transition: var(--header-transition-fast);
}

.auth-dropdown .btn-link:hover {
  color: var(--header-secondary) !important;
  transform: translateY(-1px);
}

.auth-dropdown .dropdown-menu {
  background: var(--header-dropdown-bg) !important;
  border: var(--header-border) !important;
  padding: 0.75rem 0;
  z-index: var(--header-dropdown-z-index) !important;
}

.auth-dropdown .dropdown-menu.dropdown-enhanced {
  box-shadow: var(--header-dropdown-shadow) !important;
  backdrop-filter: var(--header-blur-light) !important;
  -webkit-backdrop-filter: var(--header-blur-light) !important;
}

.auth-dropdown .dropdown-item {
  padding: 0.75rem 1.25rem;
  color: var(--header-primary);
  transition: var(--header-transition);
  display: flex;
  align-items: center;
  border-radius: 8px;
  margin: 0 0.5rem;
}

.auth-dropdown .dropdown-item:hover {
  background: linear-gradient(135deg, rgba(0, 127, 129, 0.08) 0%, rgba(0, 127, 129, 0.15) 100%) !important;
  color: var(--header-secondary) !important;
  transform: translateX(4px) !important;
  box-shadow: 0 4px 12px rgba(0, 127, 129, 0.15) !important;
}

.auth-dropdown .dropdown-item.text-danger {
  color: var(--header-danger) !important;
}

.auth-dropdown .dropdown-item.text-danger:hover {
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.08) 0%, rgba(220, 38, 38, 0.15) 100%) !important;
  color: var(--header-danger-hover) !important;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.15) !important;
}

/* ==========================================================================
   Консолидированные медиа-запросы
   ========================================================================== */

/* Tablet Styles - 768px to 991px */
@media (min-width: 768px) and (max-width: 991px) {
  .custom-navbar {
    background: var(--header-bg-tablet) !important;
    border-bottom: var(--header-border-tablet) !important;
    box-shadow: var(--header-shadow-tablet) !important;
  }

  .custom-navbar.header-enhanced {
    backdrop-filter: var(--header-blur-tablet) !important;
    -webkit-backdrop-filter: var(--header-blur-tablet) !important;
  }

  .auth-dropdown .dropdown-menu {
    min-width: 200px !important;
    max-width: 250px !important;
    border-radius: var(--header-border-radius-tablet) !important;
  }

  .auth-dropdown .dropdown-menu.dropdown-enhanced {
    box-shadow: 0 6px 20px rgba(0, 127, 129, 0.12) !important;
  }
}

/* Mobile Styles - до 767px */
@media (max-width: 767px) {
  .custom-navbar {
    background: var(--header-bg-mobile) !important;
    border-bottom: var(--header-border-mobile) !important;
    box-shadow: var(--header-shadow-mobile) !important;
  }

  /* Отключаем тяжёлые эффекты на мобильных */
  .custom-navbar.header-enhanced {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    background: #fff !important;
    /* Простой цвет вместо градиента для производительности */
  }

  .custom-navbar .navbar-brand span {
    font-size: 1rem;
  }

  .custom-navbar .nav-link {
    font-size: 1rem;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }

  .custom-navbar .nav-link.active {
    font-size: 0.85rem;
  }

  .custom-navbar .dropdown-menu {
    padding: 0.2rem 0;
  }

  .custom-navbar .dropdown-item {
    font-size: 1rem;
    padding: 0.2rem 0.8rem;
  }

  /* Мобильное dropdown меню - упрощённое */
  .navbar-collapse.show .auth-dropdown,
  .navbar-collapse.collapsing .auth-dropdown {
    width: 100% !important;
    margin: 1rem 0 0.5rem 0 !important;
    order: 10 !important;
  }

  .navbar-collapse.show .auth-dropdown .btn-link,
  .navbar-collapse.collapsing .auth-dropdown .btn-link {
    width: 100% !important;
    justify-content: flex-start !important;
    padding: 1rem !important;
    border: var(--header-border) !important;
    border-radius: var(--header-border-radius-mobile) !important;
    background-color: rgba(0, 127, 129, 0.05) !important;
    margin-bottom: 0.5rem !important;
  }

  .navbar-collapse.show .auth-dropdown .dropdown-menu,
  .navbar-collapse.collapsing .auth-dropdown .dropdown-menu {
    position: static !important;
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0.5rem 0 !important;
    border-radius: var(--header-border-radius-mobile) !important;
    box-shadow: inset 0 2px 8px rgba(0, 127, 129, 0.1) !important;
    border: var(--header-border) !important;
    background-color: rgba(248, 250, 252, 0.8) !important;
  }

  .navbar-collapse.show .auth-dropdown .dropdown-item,
  .navbar-collapse.collapsing .auth-dropdown .dropdown-item {
    padding: 0.75rem 1rem !important;
    font-size: 0.95rem !important;
    border-radius: 6px !important;
    margin: 0.25rem 0.5rem !important;
  }

  /* Стили для кнопок входа/регистрации */
  .navbar-collapse.show .auth-buttons,
  .navbar-collapse.collapsing .auth-buttons {
    width: 100% !important;
    margin: 1rem 0 0.5rem 0 !important;
    flex-direction: column !important;
    align-items: stretch !important;
    order: 10 !important;
  }

  .navbar-collapse.show .auth-buttons .d-flex,
  .navbar-collapse.collapsing .auth-buttons .d-flex {
    flex-direction: column !important;
    gap: 0.75rem !important;
    width: 100% !important;
  }

  .navbar-collapse.show .auth-buttons .btn,
  .navbar-collapse.collapsing .auth-buttons .btn {
    width: 100% !important;
    padding: 0.75rem 1rem !important;
    font-size: 1rem !important;
    border-radius: var(--header-border-radius-mobile) !important;
  }

  /* Touch устройства */
  .auth-dropdown.touch-device .dropdown-item {
    padding: 1rem !important;
    min-height: var(--header-touch-min-height-mobile) !important;
    font-size: 1rem !important;
  }

  .auth-dropdown.touch-device .dropdown-item.touch-hover {
    background: rgba(0, 127, 129, 0.08) !important;
    transform: none !important;
  }
}

/* Очень маленькие экраны - до 400px */
@media (max-width: 400px) {

  .navbar-collapse.show .auth-dropdown .dropdown-item,
  .navbar-collapse.collapsing .auth-dropdown .dropdown-item {
    padding: 0.6rem 0.8rem !important;
    font-size: 0.9rem !important;
  }

  .navbar-collapse.show .auth-dropdown .btn-link,
  .navbar-collapse.collapsing .auth-dropdown .btn-link {
    padding: 0.8rem !important;
    font-size: 0.9rem !important;
  }
}

/* Desktop большие экраны - 992px+ */
@media (min-width: 992px) {
  .auth-dropdown .dropdown-menu {
    position: absolute !important;
    top: 100% !important;
    right: 0 !important;
    left: auto !important;
    margin-top: 0.5rem !important;
    min-width: var(--header-dropdown-width-min) !important;
    max-width: var(--header-dropdown-width-max) !important;
    border-radius: var(--header-border-radius) !important;
  }

  .auth-dropdown .dropdown-menu.dropdown-enhanced {
    box-shadow: 0 8px 25px rgba(0, 127, 129, 0.15) !important;
  }
}

/* Дополнительные медиа-запросы для layout */
@media (max-width: 991px) {
  .custom-navbar .container-fluid {
    padding-left: 1.2rem;
  }
}

@media (min-width: 450px) and (max-width: 992px) {
  .custom-navbar .container-fluid {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    flex-wrap: nowrap !important;
  }

  .custom-navbar .navbar-brand {
    flex-shrink: 0;
  }

  .custom-navbar .theme-toggle-btn.d-lg-none {
    order: 2;
    margin-left: auto;
    margin-right: 0.5rem;
  }

  .custom-navbar .navbar-toggler {
    order: 3;
    flex-shrink: 0;
  }

  .custom-navbar .collapse.navbar-collapse {
    order: 4;
    flex-basis: 100%;
  }
}

@media (max-width: 415px) {
  .custom-navbar .navbar-brand span {
    font-size: 1.1rem !important;
  }
}

/* ==========================================================================
   Lazy Loading анимации и эффекты
   ========================================================================== */

/* Анимации dropdown - только при активации */
.auth-dropdown .dropdown-menu {
  opacity: 0 !important;
  transform: translateY(-10px) scale(0.95) !important;
  transition: var(--header-transition-dropdown) !important;
  pointer-events: none !important;
}

.auth-dropdown .dropdown-menu.show {
  opacity: 1 !important;
  transform: translateY(0) scale(1) !important;
  pointer-events: auto !important;
}

/* Keyframe анимации - применяются по требованию */
.auth-dropdown .dropdown-menu.dropdown-opening {
  animation: dropdownFadeIn 0.2s ease-out forwards;
}

.auth-dropdown .dropdown-menu.dropdown-closing {
  animation: dropdownFadeOut 0.15s ease-in forwards;
}

@keyframes dropdownFadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px) scale(0.95);
  }

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

@keyframes dropdownFadeOut {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  to {
    opacity: 0;
    transform: translateY(-5px) scale(0.98);
  }
}

/* Touch устройства */
.auth-dropdown.touch-device .dropdown-item {
  padding: 0.875rem 1.25rem !important;
  min-height: var(--header-touch-min-height) !important;
  display: flex !important;
  align-items: center !important;
}

.auth-dropdown.touch-device .dropdown-item.touch-hover {
  background: linear-gradient(135deg, rgba(0, 127, 129, 0.1) 0%, rgba(0, 127, 129, 0.2) 100%) !important;
  transform: translateX(2px) !important;
}

/* ==========================================================================
   Умные Tooltips - JavaScript позиционирование
   ========================================================================== */

[data-tooltip] {
  position: relative;
  cursor: pointer;
}

.smart-tooltip {
  position: fixed;
  background: linear-gradient(145deg, rgba(0, 0, 0, 0.9) 0%, rgba(30, 30, 30, 0.95) 100%);
  color: white;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: var(--fw-medium);
  white-space: nowrap;
  z-index: 10000;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-5px);
  transition: all 0.2s ease-out;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  max-width: 300px;
  word-wrap: break-word;
  white-space: normal;
}

.smart-tooltip.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Отключаем tooltips на мобильных */
@media (max-width: 991px) {
  .smart-tooltip {
    display: none !important;
  }
}

/* Тёмная тема для tooltips */
[data-theme="dark"] .smart-tooltip {
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.95) 100%);
  border: 1px solid rgba(148, 163, 184, 0.2);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

/* ==========================================================================
   Утилиты и дополнительные классы
   ========================================================================== */

/* Убираем outline при focus на dropdown toggle */
.auth-dropdown .btn-link:focus {
  outline: none !important;
  box-shadow: 0 0 0 2px rgba(0, 127, 129, 0.25) !important;
  border-radius: 8px !important;
}

/* Плавная анимация для badge */
.auth-dropdown .badge {
  transition: var(--header-transition) !important;
}

.auth-dropdown .badge:hover {
  transform: scale(1.05) !important;
}

/* Улучшенные разделители */
.auth-dropdown .dropdown-divider {
  border-color: rgba(0, 127, 129, 0.15) !important;
  margin: 0.5rem 0.75rem !important;
  opacity: 0.6 !important;
}

/* Защита от случайных кликов */
.dropdown-menu.show {
  pointer-events: auto !important;
}

.dropdown-menu:not(.show) {
  pointer-events: none !important;
}

/* Состояние загрузки */
.auth-dropdown .dropdown-item[style*="opacity: 0.7"] {
  position: relative;
}

.auth-dropdown .dropdown-item[style*="opacity: 0.7"]::after {
  content: '';
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  border: 1px solid var(--header-primary);
  border-top: 1px solid transparent;
  border-radius: 50%;
  animation: dropdownSpinner 1s linear infinite;
}

@keyframes dropdownSpinner {
  to {
    transform: translateY(-50%) rotate(360deg);
  }
}

/* Улучшенная доступность */
.auth-dropdown .dropdown-toggle:focus-visible {
  outline: 2px solid var(--header-primary) !important;
  outline-offset: 2px !important;
  border-radius: 8px !important;
}

/* Предотвращение случайного выделения текста */
.auth-dropdown .dropdown-menu,
.auth-dropdown .dropdown-item {
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

/* ==========================================================================
   Тёмная тема - консолидированные стили
   ========================================================================== */

[data-theme="dark"] .auth-dropdown .dropdown-item {
  color: var(--header-primary) !important;
}

[data-theme="dark"] .auth-dropdown .dropdown-item:hover {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(59, 130, 246, 0.25) 100%) !important;
  color: var(--header-secondary) !important;
}

[data-theme="dark"] .auth-dropdown .dropdown-item.text-danger {
  color: var(--header-danger) !important;
}

[data-theme="dark"] .auth-dropdown .dropdown-item.text-danger:hover {
  background: linear-gradient(135deg, rgba(248, 113, 113, 0.15) 0%, rgba(248, 113, 113, 0.25) 100%) !important;
  color: var(--header-danger-hover) !important;
}

[data-theme="dark"] .auth-dropdown .dropdown-divider {
  border-color: rgba(148, 163, 184, 0.2) !important;
}

[data-theme="dark"] .auth-dropdown .btn-link {
  color: var(--header-primary) !important;
}

[data-theme="dark"] .auth-dropdown .btn-link:hover {
  color: var(--header-secondary) !important;
}

[data-theme="dark"] .auth-dropdown .btn-link:focus {
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.4) !important;
}

/* Убираем черное выделение для nav-link в тёмной теме */
[data-theme="dark"] .custom-navbar .nav-link:hover,
[data-theme="dark"] .custom-navbar .nav-link:focus {
  background: none !important;
  color: var(--header-secondary) !important;
  text-decoration: none !important;
}

/* Тёмная тема для мобильных */
@media (max-width: 767px) {

  [data-theme="dark"] .navbar-collapse.show .auth-dropdown .dropdown-menu,
  [data-theme="dark"] .navbar-collapse.collapsing .auth-dropdown .dropdown-menu {
    background-color: rgba(15, 23, 42, 0.95) !important;
    border: 1px solid rgba(148, 163, 184, 0.25) !important;
  }

  [data-theme="dark"] .navbar-collapse.show .auth-dropdown .btn-link,
  [data-theme="dark"] .navbar-collapse.collapsing .auth-dropdown .btn-link {
    background-color: rgba(59, 130, 246, 0.1) !important;
    border: 1px solid rgba(59, 130, 246, 0.3) !important;
    color: var(--header-primary) !important;
  }

  [data-theme="dark"] .auth-dropdown.touch-device .dropdown-item.touch-hover {
    background: rgba(59, 130, 246, 0.15) !important;
  }

  /* Отключаем сложные эффекты на мобильных в тёмной теме */
  [data-theme="dark"] .custom-navbar.header-enhanced {
    background: rgba(15, 23, 42, 1) !important;
  }
}

/* Тёмная тема для анимаций загрузки */
[data-theme="dark"] .auth-dropdown .dropdown-item[style*="opacity: 0.7"]::after {
  border: 1px solid rgba(59, 130, 246, 0.8);
  border-top: 1px solid transparent;
}

[data-theme="dark"] .theme-toggle-btn img[src*="sun.svg"] {
    filter: brightness(0) saturate(100%) invert(100%);
}

[data-theme="dark"] .theme-toggle-btn {
    background: var(--secondary-color) !important;
    border-color: var(--nav-border) !important;
}

[data-theme="dark"] .theme-toggle-btn:hover {
    background: var(--primary-dark) !important;
}