/* ========================================
   ДОПОЛНИТЕЛЬНЫЕ СТИЛИ И КОМПОНЕНТЫ
======================================== */

/* Кнопка "Наверх" */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-to-top:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

/* Индикатор чтения */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: rgba(0,0,0,0.1);
  z-index: 9999;
}

.reading-progress-bar {
  height: 100%;
  background: var(--gradient-primary);
  transition: width 0.1s ease;
}

/* Уведомления */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 1rem 1.5rem;
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 1rem;
  transform: translateX(400px);
  transition: transform var(--transition-base);
  z-index: 10000;
}

.notification.show {
  transform: translateX(0);
}

.notification-success {
  border-left: 4px solid var(--success-color);
}

.notification-error {
  border-left: 4px solid #ef4444;
}

.notification-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-light);
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

/* Хлебные крошки */
.breadcrumb-nav {
  padding: var(--spacing-md) 0;
  font-size: var(--font-sm);
}

.breadcrumb {
  background: transparent;
  padding: 0;
  margin: 0;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "›";
  color: var(--text-light);
  padding: 0 0.5rem;
}

.breadcrumb-item a {
  color: var(--text-secondary);
}

.breadcrumb-item.active {
  color: var(--text-primary);
}

/* Кнопка мобильного меню */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Поиск в хедере */
.search-form-wrapper {
  position: relative;
}

.search-form {
  position: relative;
}

.search-form input {
  padding: 0.75rem 3rem 0.75rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  transition: all var(--transition-base);
  font-size: var(--font-base);
}

.search-form input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 119, 190, 0.1);
}

.search-form button {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.search-form button:hover {
  background: var(--primary-dark);
}

/* Sidebar виджеты */
.widget {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
}

.widget-title {
  font-size: var(--font-xl);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--primary-color);
}

.widget ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.widget li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.widget li:last-child {
  border-bottom: none;
}

.widget a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.widget a:hover {
  color: var(--primary-color);
  padding-left: 5px;
}

/* Пагинация */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin: var(--spacing-2xl) 0;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0.5rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.pagination a:hover {
  border-color: var(--primary-color);
  background: var(--primary-color);
  color: white;
}

.pagination .current {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

/* Комментарии */
.comments-area {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-top: var(--spacing-2xl);
}

.comment-list {
  list-style: none;
  padding: 0;
}

.comment {
  padding: var(--spacing-lg);
  border-left: 3px solid var(--primary-color);
  margin-bottom: var(--spacing-lg);
  background: var(--bg-light);
  border-radius: var(--radius-md);
}

.comment-author {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.comment-meta {
  font-size: var(--font-sm);
  color: var(--text-light);
  margin-bottom: var(--spacing-sm);
}

/* Форма комментариев */
.comment-form input,
.comment-form textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: var(--font-base);
  transition: border-color var(--transition-fast);
}

.comment-form input:focus,
.comment-form textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.comment-form textarea {
  min-height: 120px;
  resize: vertical;
}

.comment-form .submit {
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 0.75rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}

.comment-form .submit:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Single Post */
.single-post .entry-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.single-post .entry-title {
  font-size: var(--font-5xl);
  margin-bottom: var(--spacing-md);
}

.single-post .entry-meta {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: var(--font-sm);
}

.single-post .entry-content {
  background: white;
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  line-height: 1.8;
}

.single-post .entry-content h2,
.single-post .entry-content h3 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.single-post .entry-content p {
  margin-bottom: var(--spacing-md);
}

.single-post .entry-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: var(--spacing-lg) 0;
}

.single-post .entry-content ul,
.single-post .entry-content ol {
  margin-bottom: var(--spacing-md);
  padding-left: 2rem;
}

.single-post .entry-content li {
  margin-bottom: 0.5rem;
}

/* Соц. кнопки шеринга */
.share-buttons {
  display: flex;
  gap: 1rem;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--border-color);
}

.share-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  color: white;
  font-size: var(--font-sm);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.share-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: white;
}

.share-facebook { background: #1877f2; }
.share-twitter { background: #1da1f2; }
.share-telegram { background: #0088cc; }
.share-whatsapp { background: #25d366; }
.share-link { background: #6c757d; }

/* Связанные посты */
.related-posts {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-2xl);
  border-top: 2px solid var(--border-color);
}

.related-posts-title {
  font-size: var(--font-3xl);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

/* Темная тема (опционально) */
body.dark-theme {
  background: #1a1a1a;
  color: #e0e0e0;
}

body.dark-theme .site-header,
body.dark-theme .post-card,
body.dark-theme .widget,
body.dark-theme .single-post .entry-content {
  background: #2d2d2d;
  color: #e0e0e0;
}

body.dark-theme h1,
body.dark-theme h2,
body.dark-theme h3,
body.dark-theme h4,
body.dark-theme h5,
body.dark-theme h6 {
  color: white;
}

/* Адаптивность для мобильных */
@media (max-width: 991px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .main-navigation ul {
    display: none;
  }

  .main-navigation.mobile-active ul {
    display: flex;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }

  .hero-content h1 {
    font-size: var(--font-3xl);
  }

  .single-post .entry-title {
    font-size: var(--font-3xl);
  }

  .single-post .entry-content {
    padding: var(--spacing-lg);
  }
}

@media (max-width: 576px) {
  .scroll-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
  }

  .notification {
    left: 10px;
    right: 10px;
  }

  .share-buttons {
    flex-wrap: wrap;
  }

  .share-button {
    flex: 1 1 45%;
  }
}

/* Загрузчик / Прелоадер */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  transition: opacity 0.3s ease;
}

.page-loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Модальное окно для изображений */
.image-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.image-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.9);
}

.image-modal-content {
  position: relative;
  z-index: 1;
  max-width: 90%;
  max-height: 90%;
}

.image-modal-content img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--radius-md);
}

.image-modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

body.modal-open {
  overflow: hidden;
}

/* Тултипы */
.tooltip {
  position: relative;
  cursor: help;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.5rem 1rem;
  background: rgba(0, 0, 0, 0.9);
  color: white;
  font-size: var(--font-sm);
  white-space: nowrap;
  border-radius: var(--radius-sm);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  margin-bottom: 5px;
}

.tooltip:hover::after {
  opacity: 1;
}