/* ============================================
   BREADCRUMBS.CSS - Funky Breadcrumb Navigation
   Phase 3C: Dynamic breadcrumb component
   ============================================ */

/* ============================================
   CSS VARIABLES - Breadcrumb Theming
   ============================================ */
:root {
  --breadcrumb-height: 32px;
  --breadcrumb-font-size: 13px;
  --breadcrumb-separator-size: 10px;
  --breadcrumb-gap: 8px;
}

/* ============================================
   BREADCRUMB CONTAINER
   ============================================ */
.breadcrumb-pro {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--breadcrumb-gap);
  padding: 0;
  margin: 0;
  list-style: none;
  font-size: var(--breadcrumb-font-size);
  min-height: var(--breadcrumb-height);
}

/* ============================================
   BREADCRUMB ITEMS
   ============================================ */
.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: var(--breadcrumb-gap);
  color: var(--pro-text-secondary, #8b949e);
}

.breadcrumb-item a {
  color: var(--pro-text-secondary, #8b949e);
  text-decoration: none;
  transition: color 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb-item a:hover {
  color: var(--user-accent, var(--pro-accent-primary, #2f81f7));
  text-decoration: none;
}

/* Separator (chevron) between items */
.breadcrumb-item:not(:last-child)::after {
  content: '';
  display: inline-block;
  width: var(--breadcrumb-separator-size);
  height: var(--breadcrumb-separator-size);
  margin-left: var(--breadcrumb-gap);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%238b949e'%3E%3Cpath d='M6.22 3.22a.75.75 0 011.06 0l4.25 4.25a.75.75 0 010 1.06l-4.25 4.25a.75.75 0 01-1.06-1.06L9.94 8 6.22 4.28a.75.75 0 010-1.06z'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.7;
}

/* Active/current page (last item) */
.breadcrumb-item.active {
  color: var(--pro-text-primary, #e6edf3);
  font-weight: 500;
}

.breadcrumb-item.active a {
  color: var(--pro-text-primary, #e6edf3);
  pointer-events: none;
  cursor: default;
}

/* ============================================
   HOME ICON (First Item)
   ============================================ */
.breadcrumb-home {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  color: var(--pro-text-secondary, #8b949e);
  transition: all 0.15s ease;
}

.breadcrumb-home:hover {
  color: var(--user-accent, var(--pro-accent-primary, #2f81f7));
  background: var(--user-accent-muted, rgba(47, 129, 247, 0.1));
}

.breadcrumb-home i {
  font-size: 14px;
}

/* ============================================
   BREADCRUMB WITH ICONS
   ============================================ */
.breadcrumb-item i {
  font-size: 12px;
  opacity: 0.8;
}

.breadcrumb-item a i {
  margin-right: 4px;
}

/* ============================================
   BREADCRUMB VARIANTS
   ============================================ */

/* Boxed style */
.breadcrumb-pro.breadcrumb-boxed {
  background: var(--pro-bg-tertiary, #21262d);
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--pro-border-color, #30363d);
}

/* Compact style */
.breadcrumb-pro.breadcrumb-compact {
  --breadcrumb-font-size: 12px;
  --breadcrumb-gap: 6px;
  --breadcrumb-separator-size: 8px;
}

/* Large style */
.breadcrumb-pro.breadcrumb-large {
  --breadcrumb-font-size: 14px;
  --breadcrumb-gap: 10px;
  --breadcrumb-separator-size: 12px;
}

/* ============================================
   BREADCRUMB IN PAGE HEADER
   ============================================ */
.page-header .breadcrumb-pro {
  margin-bottom: 8px;
}

.page-header .breadcrumb-item {
  font-size: 12px;
}

/* ============================================
   DROPDOWN BREADCRUMB (For deep paths)
   ============================================ */
.breadcrumb-dropdown {
  position: relative;
}

.breadcrumb-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  background: var(--pro-bg-tertiary, #21262d);
  border: 1px solid var(--pro-border-color, #30363d);
  border-radius: 4px;
  color: var(--pro-text-secondary, #8b949e);
  cursor: pointer;
  transition: all 0.15s ease;
}

.breadcrumb-dropdown-toggle:hover {
  background: var(--pro-bg-hover, #30363d);
  color: var(--pro-text-primary, #e6edf3);
}

.breadcrumb-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 1000;
  min-width: 180px;
  padding: 4px 0;
  margin-top: 4px;
  background: var(--pro-bg-secondary, #161b22);
  border: 1px solid var(--pro-border-color, #30363d);
  border-radius: 6px;
  box-shadow: var(--pro-shadow-lg, 0 8px 24px rgba(0, 0, 0, 0.3));
  display: none;
}

.breadcrumb-dropdown.open .breadcrumb-dropdown-menu {
  display: block;
}

.breadcrumb-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  color: var(--pro-text-primary, #e6edf3);
  text-decoration: none;
  transition: background 0.15s ease;
}

.breadcrumb-dropdown-menu a:hover {
  background: var(--pro-bg-hover, #30363d);
}

.breadcrumb-dropdown-menu a i {
  width: 16px;
  text-align: center;
  color: var(--pro-text-secondary, #8b949e);
}

/* ============================================
   RESPONSIVE - Mobile
   ============================================ */
@media (max-width: 768px) {
  .breadcrumb-pro {
    --breadcrumb-font-size: 12px;
    --breadcrumb-gap: 6px;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  
  .breadcrumb-pro::-webkit-scrollbar {
    display: none;
  }
  
  /* Hide middle items on mobile, show ellipsis */
  .breadcrumb-pro.breadcrumb-truncate .breadcrumb-item:not(:first-child):not(:last-child):not(:nth-last-child(2)) {
    display: none;
  }
  
  .breadcrumb-pro.breadcrumb-truncate .breadcrumb-item:nth-last-child(2)::before {
    content: '...';
    margin-right: 8px;
    color: var(--pro-text-muted, #6e7681);
  }
}

/* ============================================
   LIGHT THEME OVERRIDES
   ============================================ */
[data-theme="light"] .breadcrumb-item {
  color: var(--pro-text-secondary);
}

[data-theme="light"] .breadcrumb-item a {
  color: var(--pro-text-secondary);
}

[data-theme="light"] .breadcrumb-item a:hover {
  color: var(--pro-accent-primary);
}

[data-theme="light"] .breadcrumb-item:not(:last-child)::after {
  /* SVG chevron uses encoded color for light theme */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2357606a'%3E%3Cpath d='M6.22 3.22a.75.75 0 011.06 0l4.25 4.25a.75.75 0 010 1.06l-4.25 4.25a.75.75 0 01-1.06-1.06L9.94 8 6.22 4.28a.75.75 0 010-1.06z'/%3E%3C/svg%3E");
}

[data-theme="light"] .breadcrumb-item.active {
  color: var(--pro-text-primary);
}

[data-theme="light"] .breadcrumb-item.active a {
  color: var(--pro-text-primary);
}

[data-theme="light"] .breadcrumb-home {
  color: var(--pro-text-secondary);
}

[data-theme="light"] .breadcrumb-home:hover {
  color: var(--pro-accent-primary);
  background: var(--pro-accent-primary-muted);
}

[data-theme="light"] .breadcrumb-pro.breadcrumb-boxed {
  background: var(--pro-bg-secondary);
  border-color: var(--pro-border-color);
}

[data-theme="light"] .breadcrumb-dropdown-toggle {
  background: var(--pro-bg-secondary);
  border-color: var(--pro-border-color);
  color: var(--pro-text-secondary);
}

[data-theme="light"] .breadcrumb-dropdown-toggle:hover {
  background: var(--pro-bg-tertiary);
  color: var(--pro-text-primary);
}

[data-theme="light"] .breadcrumb-dropdown-menu {
  background: var(--pro-bg-primary);
  border-color: var(--pro-border-color);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .breadcrumb-dropdown-menu a {
  color: var(--pro-text-primary);
}

[data-theme="light"] .breadcrumb-dropdown-menu a:hover {
  background: var(--pro-bg-secondary);
}

/* ============================================
   EVEN-FUNKYER THEME OVERRIDES
   ============================================ */
[data-theme="even-funkyer"] .breadcrumb-item {
  color: rgba(0, 255, 255, 0.7);
}

[data-theme="even-funkyer"] .breadcrumb-item a {
  color: rgba(0, 255, 255, 0.7);
}

[data-theme="even-funkyer"] .breadcrumb-item a:hover {
  color: var(--pro-accent-primary);
  text-shadow: 0 0 10px rgba(255, 0, 255, 0.5);
}

[data-theme="even-funkyer"] .breadcrumb-item:not(:last-child)::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300ffff'%3E%3Cpath d='M6.22 3.22a.75.75 0 011.06 0l4.25 4.25a.75.75 0 010 1.06l-4.25 4.25a.75.75 0 01-1.06-1.06L9.94 8 6.22 4.28a.75.75 0 010-1.06z'/%3E%3C/svg%3E");
  opacity: 0.5;
}

[data-theme="even-funkyer"] .breadcrumb-item.active {
  color: var(--pro-text-primary);
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

[data-theme="even-funkyer"] .breadcrumb-item.active a {
  color: var(--pro-text-primary);
}

[data-theme="even-funkyer"] .breadcrumb-home {
  color: var(--pro-accent-secondary);
}

[data-theme="even-funkyer"] .breadcrumb-home:hover {
  color: var(--pro-accent-primary);
  background: rgba(255, 0, 255, 0.2);
  box-shadow: 0 0 10px rgba(255, 0, 255, 0.3);
}

[data-theme="even-funkyer"] .breadcrumb-pro.breadcrumb-boxed {
  background: rgba(10, 0, 21, 0.8);
  border-color: rgba(255, 0, 255, 0.3);
  box-shadow: 0 0 10px rgba(255, 0, 255, 0.1);
}

[data-theme="even-funkyer"] .breadcrumb-dropdown-toggle {
  background: rgba(0, 0, 0, 0.3);
  border-color: rgba(0, 255, 255, 0.3);
  color: var(--pro-accent-secondary);
}

[data-theme="even-funkyer"] .breadcrumb-dropdown-toggle:hover {
  background: rgba(255, 0, 255, 0.2);
  border-color: var(--pro-accent-primary);
  color: var(--pro-accent-primary);
  box-shadow: 0 0 10px rgba(255, 0, 255, 0.4);
}

[data-theme="even-funkyer"] .breadcrumb-dropdown-menu {
  background: rgba(10, 0, 21, 0.95);
  border-color: rgba(255, 0, 255, 0.4);
  box-shadow: 
    0 8px 24px rgba(0, 0, 0, 0.5),
    0 0 20px rgba(255, 0, 255, 0.2);
}

[data-theme="even-funkyer"] .breadcrumb-dropdown-menu a {
  color: var(--pro-accent-secondary);
}

[data-theme="even-funkyer"] .breadcrumb-dropdown-menu a:hover {
  background: rgba(255, 0, 255, 0.2);
  color: var(--pro-accent-primary);
}

[data-theme="even-funkyer"] .breadcrumb-dropdown-menu a i {
  color: var(--pro-accent-primary);
}

/* ============================================
   PERSISTENT BREADCRUMB BAR
   For SPA layouts with fixed breadcrumb nav
   ============================================ */
.page-breadcrumb-bar {
  display: block;
  padding: 10px 20px;
  background: var(--pro-bg-secondary, #161b22);
  border-bottom: 1px solid var(--pro-border-color, #30363d);
}

.page-breadcrumb-bar:empty {
  display: none;
}

.page-breadcrumb-bar .breadcrumb-pro {
  margin: 0;
}

/* Light Theme */
[data-theme="light"] .page-breadcrumb-bar {
  background: var(--pro-bg-primary);
  border-bottom-color: var(--pro-border-color);
}

/* Even-Funkyer Theme */
[data-theme="even-funkyer"] .page-breadcrumb-bar {
  background: rgba(10, 0, 21, 0.9);
  border-bottom-color: rgba(255, 0, 255, 0.3);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* ============================================
   HIGH CONTRAST MODE
   ============================================ */

@media (prefers-contrast: high) {
  .breadcrumb-item a {
    text-decoration: underline;
  }

  .breadcrumb-item.active {
    font-weight: 700;
  }

  .breadcrumb-item + .breadcrumb-item::before {
    font-weight: 700;
  }
}

/* ============================================
   BOOTSTRAP BREADCRUMB THEME OVERRIDES
   Using --pro-* variables for theme consistency
   ============================================ */

.breadcrumb {
  background-color: transparent;
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--pro-text-tertiary);
}

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

/* ============================================
   CUSTOM TEXT SEPARATOR
   ============================================ */

/* Hide Bootstrap's ::before separator only when using custom text separators */
.breadcrumb-pro.breadcrumb-custom-sep .breadcrumb-item + .breadcrumb-item::before {
  content: none;
  display: none;
}

.breadcrumb-pro.breadcrumb-custom-sep .breadcrumb-item:not(:last-child)::after {
  content: attr(data-separator);
  background-image: none;
  width: auto;
  height: auto;
  font-size: var(--breadcrumb-font-size);
  color: var(--pro-text-muted);
  padding: 0 0.25rem;
}

/* ============================================
   PLAYGROUND DEMO STYLES
   ============================================ */

.breadcrumb-demo__interactive {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.breadcrumb-demo__config {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1rem;
  background: var(--pro-bg-tertiary);
  border-radius: 6px;
  border: 1px solid var(--pro-border-color);
}

.breadcrumb-demo__config-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.breadcrumb-demo__config-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--pro-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.breadcrumb-demo__config-value {
  font-size: 0.875rem;
  color: var(--pro-text-primary);
  font-family: var(--pro-font-mono, monospace);
}

.breadcrumb-demo__styles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.breadcrumb-demo__style-item {
  padding: 1rem;
  background: var(--pro-bg-secondary);
  border-radius: 6px;
  border: 1px solid var(--pro-border-color);
  overflow: hidden;
  min-width: 0;
}

.breadcrumb-demo__style-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--pro-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.breadcrumb-demo__api-target {
  padding: 1rem;
  background: var(--pro-bg-tertiary);
  border-radius: 6px;
  border: 1px solid var(--pro-border-color);
  margin-bottom: 1rem;
  min-height: 48px;
}

.breadcrumb-demo__api-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.breadcrumb-demo__dynamic-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.breadcrumb-demo__state {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  padding: 1rem;
  background: var(--pro-bg-tertiary);
  border-radius: 6px;
  border: 1px solid var(--pro-border-color);
}

.breadcrumb-demo__state-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.breadcrumb-demo__state-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--pro-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.breadcrumb-demo__state-value {
  font-size: 0.875rem;
  color: var(--pro-text-primary);
  font-family: var(--pro-font-mono, monospace);
}

.breadcrumb-demo__log {
  max-height: 200px;
  overflow-y: auto;
  padding: 1rem;
  background: var(--pro-bg-tertiary);
  border-radius: 6px;
  border: 1px solid var(--pro-border-color);
  font-family: var(--pro-font-mono, monospace);
  font-size: 0.75rem;
  color: var(--pro-text-secondary);
}

.breadcrumb-demo__log:empty::before {
  content: 'Events will appear here...';
  color: var(--pro-text-muted);
  font-style: italic;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .breadcrumb-demo__config {
    flex-direction: column;
  }

  .breadcrumb-demo__styles {
    grid-template-columns: 1fr;
  }

  .breadcrumb-demo__state {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 576px) {
  .breadcrumb-demo__styles {
    gap: 0.75rem;
  }

  .breadcrumb-demo__style-item {
    padding: 0.75rem;
  }

  .breadcrumb-demo__state {
    grid-template-columns: 1fr;
  }

  .breadcrumb-demo__api-buttons,
  .breadcrumb-demo__dynamic-controls {
    flex-direction: column;
  }

  .breadcrumb-demo__api-buttons .btn,
  .breadcrumb-demo__dynamic-controls .btn {
    width: 100%;
  }
}