/* ============================================
   Header, Navigation, Search, Buttons, Tab Bar
   ============================================ */

.cg-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  height: var(--cg-header-height);
  background: var(--cg-bg-secondary);
  border-bottom: 1px solid var(--cg-border-light);
  box-shadow: var(--cg-shadow-sm);
  z-index: 1000;
}

.cg-header-container {
  max-width: var(--cg-container-max-width);
  margin: 0 auto;
  padding: 0 var(--cg-spacing-xl);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--cg-spacing-xl);
}

/* Logo */
.cg-logo-wrapper {
  flex-shrink: 0;
}

.cg-logo {
  display: flex;
  align-items: center;
  gap: var(--cg-spacing-sm);
  transition: opacity var(--cg-transition-fast);
}

.cg-logo:hover {
  opacity: 0.75;
}

.cg-logo-img {
  height: 28px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

.cg-logo-text {
  display: flex;
  flex-direction: column;
  line-height: var(--cg-line-height-tight);
}

.cg-logo-main {
  font-size: var(--cg-font-size-base);
  font-weight: var(--cg-font-weight-bold);
  color: var(--cg-primary);
  letter-spacing: -0.01em;
}

.cg-logo-sub {
  font-size: var(--cg-font-size-xs);
  color: var(--cg-text-muted);
  font-weight: var(--cg-font-weight-normal);
}

/* Navigation — minimal, detail page only */
.cg-nav {
  display: flex;
  align-items: center;
  gap: var(--cg-spacing-xs);
  flex: 1;
  justify-content: center;
  margin: 0 var(--cg-spacing-lg);
}

.cg-nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px var(--cg-spacing-md);
  font-size: var(--cg-font-size-sm);
  font-weight: var(--cg-font-weight-medium);
  color: var(--cg-text-tertiary);
  border-radius: var(--cg-radius-md);
  transition: color var(--cg-transition-fast), background-color var(--cg-transition-fast);
  position: relative;
  text-decoration: none;
  white-space: nowrap;
}

.cg-nav-link i {
  font-size: 12px;
}

.cg-nav-link:hover {
  color: var(--cg-text-primary);
  background-color: var(--cg-bg-hover);
}

.cg-nav-link.active {
  color: var(--cg-primary);
  background-color: var(--cg-primary-subtle);
}

/* Header Actions */
.cg-header-actions {
  display: flex;
  align-items: center;
  gap: var(--cg-spacing-sm);
  flex-shrink: 0;
}

/* Search */
.cg-search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.cg-search-icon {
  position: absolute;
  left: var(--cg-spacing-md);
  color: var(--cg-text-muted);
  font-size: 13px;
  pointer-events: none;
  z-index: 1;
}

.cg-search-input {
  width: 240px;
  height: 36px;
  padding: 0 var(--cg-spacing-md) 0 38px;
  background-color: var(--cg-bg-primary);
  border: 1px solid var(--cg-border);
  border-radius: var(--cg-radius-md);
  color: var(--cg-text-primary);
  font-size: var(--cg-font-size-sm);
  transition: all var(--cg-transition-base);
}

.cg-search-input::placeholder {
  color: var(--cg-text-muted);
}

.cg-search-input:focus {
  outline: none;
  border-color: var(--cg-accent);
  background-color: var(--cg-bg-secondary);
  width: 290px;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

.cg-search-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background-color: var(--cg-bg-card);
  border: 1px solid var(--cg-border);
  border-radius: var(--cg-radius-lg);
  box-shadow: var(--cg-shadow-lg);
  display: none;
  max-height: 380px;
  overflow-y: auto;
  z-index: 100;
}

.cg-search-results.active {
  display: block;
}

.cg-search-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: var(--cg-text-primary);
  transition: background-color var(--cg-transition-fast);
  border-bottom: 1px solid var(--cg-border-light);
  cursor: pointer;
}

.cg-search-result-item:last-child {
  border-bottom: none;
}

.cg-search-result-item:hover {
  background-color: var(--cg-bg-hover);
}

.cg-search-result-thumb {
  width: 64px;
  height: 36px;
  border-radius: var(--cg-radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background-color: var(--cg-bg-tertiary);
}

.cg-search-result-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cg-search-result-info {
  flex: 1;
  min-width: 0;
}

.cg-search-result-title {
  font-size: var(--cg-font-size-sm);
  font-weight: var(--cg-font-weight-medium);
  color: var(--cg-text-primary);
  margin-bottom: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cg-search-result-meta {
  font-size: var(--cg-font-size-xs);
  color: var(--cg-text-tertiary);
}

.cg-search-result-empty {
  padding: 24px;
  text-align: center;
  color: var(--cg-text-secondary);
  font-size: var(--cg-font-size-sm);
}

/* Buttons */
.cg-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--cg-spacing-sm);
  padding: 7px var(--cg-spacing-lg);
  font-size: var(--cg-font-size-sm);
  font-weight: var(--cg-font-weight-medium);
  border-radius: var(--cg-radius-md);
  transition: all var(--cg-transition-fast);
  white-space: nowrap;
  cursor: pointer;
}

.cg-btn i {
  font-size: 12px;
}

.cg-btn.sm {
  padding: 5px var(--cg-spacing-md);
  font-size: var(--cg-font-size-xs);
}

.cg-btn.w-full {
  width: 100%;
  justify-content: center;
}

.cg-btn-sm {
  padding: 5px var(--cg-spacing-md);
  font-size: var(--cg-font-size-xs);
}

.cg-btn-outline {
  color: var(--cg-text-secondary);
  border: 1px solid var(--cg-border);
  background-color: var(--cg-bg-secondary);
}

.cg-btn-outline:hover {
  border-color: var(--cg-primary);
  color: var(--cg-primary);
  background-color: var(--cg-primary-subtle);
}

.cg-btn-primary {
  color: #ffffff;
  background-color: var(--cg-primary);
  border: 1px solid transparent;
}

.cg-btn-primary:hover {
  background-color: var(--cg-primary-light);
}

.cg-btn-primary:active {
  transform: translateY(1px);
}

.cg-btn-hero {
  padding: var(--cg-spacing-md) var(--cg-spacing-xl);
  font-size: var(--cg-font-size-base);
  font-weight: var(--cg-font-weight-semibold);
}

/* Language Switcher */
.cg-lang-switcher {
  display: flex;
  align-items: center;
}

.cg-lang-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 10px;
  background-color: transparent;
  border: 1px solid var(--cg-border);
  border-radius: var(--cg-radius-md);
  color: var(--cg-text-tertiary);
  font-size: var(--cg-font-size-xs);
  font-weight: var(--cg-font-weight-medium);
  transition: all var(--cg-transition-fast);
  cursor: pointer;
}

.cg-lang-btn:hover {
  background-color: var(--cg-bg-hover);
  border-color: var(--cg-primary);
  color: var(--cg-primary);
}

/* Theme Switcher — hidden (light only) */
.cg-theme-switcher {
  display: none;
}

/* Mobile Menu Button */
.cg-mobile-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  color: var(--cg-text-secondary);
  font-size: var(--cg-font-size-sm);
  border: 1px solid var(--cg-border);
  border-radius: var(--cg-radius-md);
  background: transparent;
  cursor: pointer;
}

/* Categories Dropdown */
.cg-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--cg-bg-secondary);
  border-bottom: 1px solid var(--cg-border-light);
  box-shadow: var(--cg-shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all var(--cg-transition-base);
  z-index: 999;
  pointer-events: none;
}

.cg-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.cg-dropdown-content {
  max-width: var(--cg-container-max-width);
  margin: 0 auto;
  padding: var(--cg-spacing-lg) var(--cg-spacing-xl);
}

.cg-dropdown-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--cg-spacing-sm);
}

.cg-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--cg-spacing-sm);
  padding: 10px var(--cg-spacing-md);
  border-radius: var(--cg-radius-md);
  color: var(--cg-text-secondary);
  font-size: var(--cg-font-size-sm);
  transition: all var(--cg-transition-fast);
}

.cg-dropdown-item:hover {
  background-color: var(--cg-bg-hover);
  color: var(--cg-text-primary);
}

.cg-dropdown-item i {
  font-size: 14px;
  width: 18px;
  text-align: center;
  color: var(--cg-accent);
}

.cg-dropdown-icon {
  font-size: 10px;
  transition: transform var(--cg-transition-fast);
}

/* ============================================
   Tab Bar — Category Navigation
   ============================================ */

.cg-tab-bar {
  position: sticky;
  top: var(--cg-header-height);
  z-index: 900;
  background: var(--cg-bg-secondary);
  border-bottom: 1px solid var(--cg-border-light);
  box-shadow: var(--cg-shadow-sm);
}

.cg-tab-bar-inner {
  max-width: var(--cg-container-max-width);
  margin: 0 auto;
  padding: 0 var(--cg-spacing-xl);
  height: var(--cg-tab-bar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--cg-spacing-xl);
}

.cg-tabs {
  display: flex;
  align-items: center;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  flex: 1;
}

.cg-tabs::-webkit-scrollbar {
  display: none;
}

.cg-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 var(--cg-spacing-md);
  height: var(--cg-tab-bar-height);
  font-size: var(--cg-font-size-sm);
  font-weight: var(--cg-font-weight-medium);
  color: var(--cg-text-tertiary);
  white-space: nowrap;
  border: none;
  background: transparent;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--cg-transition-fast), border-color var(--cg-transition-fast);
  position: relative;
  top: 1px; /* align border-bottom with parent border */
}

.cg-tab i {
  font-size: 11px;
}

.cg-tab:hover {
  color: var(--cg-text-primary);
}

.cg-tab.active {
  color: var(--cg-primary);
  border-bottom-color: var(--cg-primary);
  font-weight: var(--cg-font-weight-semibold);
}

.cg-tab-sort {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  background-color: var(--cg-bg-primary);
  border-radius: var(--cg-radius-md);
  padding: 3px;
}

/* Sort buttons inside tab bar */
.cg-tab-bar .cg-sort-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background-color: transparent;
  border: none;
  border-radius: var(--cg-radius-sm);
  color: var(--cg-text-muted);
  font-size: var(--cg-font-size-xs);
  font-weight: var(--cg-font-weight-medium);
  transition: all var(--cg-transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.cg-tab-bar .cg-sort-btn i {
  font-size: 10px;
}

.cg-tab-bar .cg-sort-btn:hover {
  color: var(--cg-text-secondary);
}

.cg-tab-bar .cg-sort-btn.active {
  background-color: var(--cg-bg-secondary);
  color: var(--cg-text-primary);
  box-shadow: var(--cg-shadow-sm);
}

/* Responsive Header */
@media (max-width: 1199px) {
  .cg-nav {
    display: none;
  }

  .cg-nav.active {
    display: flex;
    position: fixed;
    top: calc(var(--cg-header-height) + var(--cg-tab-bar-height));
    left: 0;
    right: 0;
    background: var(--cg-bg-secondary);
    flex-direction: column;
    padding: var(--cg-spacing-md);
    gap: 2px;
    z-index: 1000;
    border-bottom: 1px solid var(--cg-border);
    box-shadow: var(--cg-shadow-md);
    animation: slideDown 0.2s ease-out;
  }

  .cg-nav.active .cg-nav-link {
    width: 100%;
    padding: var(--cg-spacing-md);
    justify-content: flex-start;
  }

  .cg-mobile-menu-btn {
    display: flex;
  }
}

@media (max-width: 767px) {
  .cg-header-container {
    padding: 0 var(--cg-spacing-md);
  }

  .cg-logo-sub {
    display: none;
  }

  .cg-search-wrapper {
    display: none;
  }

  .cg-header-actions {
    gap: var(--cg-spacing-xs);
  }

  .cg-tab-bar-inner {
    padding: 0 var(--cg-spacing-md);
  }

  .cg-tab-sort {
    display: none;
  }

  .cg-lang-btn span {
    display: none;
  }

  .cg-lang-btn {
    padding: 6px 8px;
  }
}