/**
 * BREADCRUMBS - PharmData Design System v2.0
 * Navegação hierárquica com trilhas de localização
 *
 * Inclui: Breadcrumb básico, com ícones, colapsável, responsivo
 */

/* ===================
   CSS CUSTOM PROPERTIES
   =================== */

:root {
    /* Sizing */
    --breadcrumb-height: 2.5rem;
    --breadcrumb-gap: 0.5rem;
    --breadcrumb-padding: 0.5rem 0;

    /* Colors */
    --breadcrumb-text: var(--soft-steel, #64748B);
    --breadcrumb-text-hover: var(--graphite-depth, #1F2937);
    --breadcrumb-text-current: var(--graphite-depth, #1F2937);
    --breadcrumb-separator: var(--soft-steel, #94A3B8);

    /* Transition */
    --breadcrumb-transition: all 0.15s ease;
}

/* Dark mode */
:root.dark-mode {
    --breadcrumb-separator: rgba(148, 163, 184, 0.5);
}

/* ===================
   BREADCRUMB CONTAINER
   =================== */

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--breadcrumb-gap);
    padding: var(--breadcrumb-padding);
    margin: 0;
    list-style: none;
    font-size: 0.875rem;
    min-height: var(--breadcrumb-height);
}

/* Semantic nav wrapper */
nav.breadcrumb-nav {
    /* Use aria-label="Breadcrumb" */
}

/* ===================
   BREADCRUMB ITEM
   =================== */

.breadcrumb-item {
    display: inline-flex;
    align-items: center;
    gap: var(--breadcrumb-gap);
}

/* Separator */
.breadcrumb-item:not(:last-child)::after {
    content: '/';
    color: var(--breadcrumb-separator);
    font-size: 0.8125rem;
    margin-left: var(--breadcrumb-gap);
}

/* Link */
.breadcrumb-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--breadcrumb-text);
    text-decoration: none;
    transition: var(--breadcrumb-transition);
    padding: 0.25rem 0;
    border-radius: 0.25rem;
}

.breadcrumb-link:hover {
    color: var(--breadcrumb-text-hover);
}

.breadcrumb-link:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--teal-intense, #2AA198);
}

/* Current/Active item */
.breadcrumb-item.active,
.breadcrumb-item[aria-current="page"] {
    color: var(--breadcrumb-text-current);
    font-weight: 500;
}

.breadcrumb-item.active::after,
.breadcrumb-item[aria-current="page"]::after {
    display: none;
}

/* Icon */
.breadcrumb-icon {
    font-size: 0.875rem;
    opacity: 0.7;
}

.breadcrumb-link:hover .breadcrumb-icon {
    opacity: 1;
}

/* ===================
   SEPARATOR VARIANTS
   =================== */

/* Chevron */
.breadcrumb-chevron .breadcrumb-item:not(:last-child)::after {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    border-right: 1.5px solid var(--breadcrumb-separator);
    border-top: 1.5px solid var(--breadcrumb-separator);
    transform: rotate(45deg);
    margin-left: var(--breadcrumb-gap);
}

/* Arrow */
.breadcrumb-arrow .breadcrumb-item:not(:last-child)::after {
    content: '→';
}

/* Dot */
.breadcrumb-dot .breadcrumb-item:not(:last-child)::after {
    content: '•';
    font-size: 0.625rem;
}

/* Pipe */
.breadcrumb-pipe .breadcrumb-item:not(:last-child)::after {
    content: '|';
}

/* Custom separator via CSS variable */
.breadcrumb[data-separator]::after {
    content: attr(data-separator);
}

/* ===================
   BREADCRUMB SIZES
   =================== */

.breadcrumb-sm {
    font-size: 0.75rem;
    gap: 0.375rem;
    min-height: 2rem;
}

.breadcrumb-sm .breadcrumb-item:not(:last-child)::after {
    margin-left: 0.375rem;
    font-size: 0.6875rem;
}

.breadcrumb-sm .breadcrumb-icon {
    font-size: 0.75rem;
}

.breadcrumb-lg {
    font-size: 1rem;
    gap: 0.625rem;
    min-height: 3rem;
}

.breadcrumb-lg .breadcrumb-item:not(:last-child)::after {
    margin-left: 0.625rem;
}

.breadcrumb-lg .breadcrumb-icon {
    font-size: 1rem;
}

/* ===================
   BREADCRUMB WITH BACKGROUND
   =================== */

.breadcrumb-bg {
    background: rgba(183, 228, 213, 0.08);
    padding: 0.625rem 1rem;
    border-radius: 0.5rem;
}

.breadcrumb-bordered {
    border: 1px solid rgba(183, 228, 213, 0.2);
    padding: 0.625rem 1rem;
    border-radius: 0.5rem;
}

/* ===================
   BREADCRUMB COLAPSÁVEL
   Para paths muito longos
   =================== */

.breadcrumb-collapsible {
    /* Container */
}

.breadcrumb-collapsed {
    display: none;
}

.breadcrumb-ellipsis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    background: rgba(183, 228, 213, 0.1);
    border-radius: 0.375rem;
    color: var(--breadcrumb-text);
    cursor: pointer;
    transition: var(--breadcrumb-transition);
    border: none;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
}

.breadcrumb-ellipsis:hover {
    background: rgba(183, 228, 213, 0.2);
    color: var(--breadcrumb-text-hover);
}

.breadcrumb-ellipsis:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--teal-intense, #2AA198);
}

/* Dropdown menu for collapsed items */
.breadcrumb-dropdown {
    position: relative;
}

.breadcrumb-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 100;
    min-width: 12rem;
    background: var(--cloud);
    border: 1px solid rgba(183, 228, 213, 0.2);
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 0.5rem;
    margin-top: 0.25rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--breadcrumb-transition);
}

.breadcrumb-dropdown.open .breadcrumb-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.breadcrumb-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    color: var(--graphite-depth, #1F2937);
    text-decoration: none;
    border-radius: 0.375rem;
    transition: background 0.15s ease;
}

.breadcrumb-dropdown-item:hover {
    background: rgba(183, 228, 213, 0.1);
}

:root.dark-mode .breadcrumb-dropdown-menu {
    background: var(--arctic-mist, #1a2332);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* ===================
   HOME ICON BREADCRUMB
   =================== */

.breadcrumb-home {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    color: var(--breadcrumb-text);
    transition: var(--breadcrumb-transition);
    border-radius: 0.25rem;
}

.breadcrumb-home:hover {
    color: var(--teal-intense, #2AA198);
    background: rgba(42, 161, 152, 0.08);
}

/* ===================
   BREADCRUMB STRUCTURED DATA
   Para SEO (schema.org)
   =================== */

/* Use com itemscope itemtype="https://schema.org/BreadcrumbList" */
.breadcrumb[itemscope] {
    /* Container com structured data */
}

.breadcrumb-item[itemscope] {
    /* Item com structured data */
}

/* ===================
   ACCESSIBILITY
   =================== */

/* Screen reader */
.breadcrumb-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Current page indicator */
.breadcrumb-item[aria-current="page"] {
    /* Announced as current page */
}

/* High contrast */
@media (prefers-contrast: high) {
    .breadcrumb-link:focus-visible {
        outline: 2px solid currentColor;
        outline-offset: 2px;
        box-shadow: none;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .breadcrumb-link,
    .breadcrumb-dropdown-menu {
        transition: none;
    }
}

/* ===================
   RESPONSIVE
   =================== */

@media (max-width: 640px) {
    .breadcrumb {
        font-size: 0.8125rem;
    }

    /* Auto-collapse on mobile */
    .breadcrumb-responsive .breadcrumb-item:not(:first-child):not(:last-child):not(.breadcrumb-ellipsis-item) {
        display: none;
    }

    .breadcrumb-responsive .breadcrumb-ellipsis-item {
        display: inline-flex;
    }

    /* Show only last 2 items */
    .breadcrumb-mobile-compact .breadcrumb-item {
        display: none;
    }

    .breadcrumb-mobile-compact .breadcrumb-item:first-child,
    .breadcrumb-mobile-compact .breadcrumb-item:last-child {
        display: inline-flex;
    }

    .breadcrumb-mobile-compact .breadcrumb-item:first-child::after {
        content: '...';
        margin-left: var(--breadcrumb-gap);
        margin-right: var(--breadcrumb-gap);
    }
}

/* ===================
   PAGE HEADER INTEGRATION
   =================== */

.page-header .breadcrumb {
    padding: 0;
    margin-bottom: 0.5rem;
}

/* Breadcrumb with title below */
.breadcrumb-header {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.breadcrumb-header .page-title {
    margin: 0;
}

/* ===================
   PHARMACEUTICAL HIERARCHY BREADCRUMB
   Estrutura: Composições > Formulações > Embalagens > Apresentações
   =================== */

.breadcrumb-pharma {
    display: flex;
    align-items: stretch;
    gap: 0;
    padding: 0;
    margin: 0;
    list-style: none;
    font-size: 0.875rem;
    background: var(--arctic-mist);
    border-radius: 0.5rem;
    overflow: hidden;
}

.breadcrumb-pharma-item {
    display: flex;
    align-items: center;
    position: relative;
}

/* Arrow connector between items */
.breadcrumb-pharma-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -0.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 1.25rem solid transparent;
    border-bottom: 1.25rem solid transparent;
    border-left: 0.75rem solid var(--arctic-mist);
    z-index: 2;
}

.breadcrumb-pharma-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem 0.625rem 1.5rem;
    color: var(--soft-steel);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.15s ease;
    background: var(--arctic-mist);
    min-height: 2.5rem;
}

.breadcrumb-pharma-item:first-child .breadcrumb-pharma-link {
    padding-left: 1rem;
    border-radius: 0.5rem 0 0 0.5rem;
}

.breadcrumb-pharma-link:hover {
    color: var(--graphite-depth);
    background: var(--soft-arctic);
}

.breadcrumb-pharma-link:hover + .breadcrumb-pharma-item::after,
.breadcrumb-pharma-item:hover::after {
    border-left-color: var(--soft-arctic);
}

/* Active/Current item */
.breadcrumb-pharma-item.active .breadcrumb-pharma-link,
.breadcrumb-pharma-item[aria-current="page"] .breadcrumb-pharma-link {
    color: var(--cloud);
    background: var(--teal-intense);
    font-weight: 600;
}

.breadcrumb-pharma-item.active::after,
.breadcrumb-pharma-item[aria-current="page"]::after {
    border-left-color: var(--teal-intense);
}

/* Icons for each level (Font Awesome) */
.breadcrumb-pharma-icon {
    font-size: 0.875rem;
    opacity: 0.8;
}

.breadcrumb-pharma-item.active .breadcrumb-pharma-icon {
    opacity: 1;
}

/* Level-specific colors */
.breadcrumb-pharma-item[data-level="composicoes"] .breadcrumb-pharma-link {
    background: var(--drop-sub-bg);
    color: var(--drop-sub-text);
}
.breadcrumb-pharma-item[data-level="composicoes"]::after {
    border-left-color: var(--drop-sub-bg);
}

.breadcrumb-pharma-item[data-level="formulacoes"] .breadcrumb-pharma-link {
    background: var(--drop-fofa-bg);
    color: var(--drop-fofa-text);
}
.breadcrumb-pharma-item[data-level="formulacoes"]::after {
    border-left-color: var(--drop-fofa-bg);
}

.breadcrumb-pharma-item[data-level="embalagens"] .breadcrumb-pharma-link {
    background: var(--drop-emb-bg);
    color: var(--drop-emb-text);
}
.breadcrumb-pharma-item[data-level="embalagens"]::after {
    border-left-color: var(--drop-emb-bg);
}

.breadcrumb-pharma-item[data-level="apresentacoes"] .breadcrumb-pharma-link {
    background: var(--drop-dec-bg);
    color: var(--drop-dec-text);
}
.breadcrumb-pharma-item[data-level="apresentacoes"]::after {
    border-left-color: var(--drop-dec-bg);
}

/* Count badge */
.breadcrumb-pharma-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.25rem;
    height: 1.25rem;
    padding: 0 0.375rem;
    font-size: 0.6875rem;
    font-weight: 600;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 9999px;
    margin-left: 0.25rem;
}

.breadcrumb-pharma-item.active .breadcrumb-pharma-count {
    background: rgba(255, 255, 255, 0.25);
}

/* ===================
   COMPACT PHARMA BREADCRUMB
   =================== */

.breadcrumb-pharma-compact {
    font-size: 0.75rem;
}

.breadcrumb-pharma-compact .breadcrumb-pharma-link {
    padding: 0.375rem 0.75rem 0.375rem 1rem;
    min-height: 2rem;
}

.breadcrumb-pharma-compact .breadcrumb-pharma-item:first-child .breadcrumb-pharma-link {
    padding-left: 0.75rem;
}

.breadcrumb-pharma-compact .breadcrumb-pharma-item:not(:last-child)::after {
    border-top-width: 1rem;
    border-bottom-width: 1rem;
    border-left-width: 0.5rem;
    right: -0.5rem;
}

/* ===================
   VERTICAL PHARMA BREADCRUMB
   Para painéis laterais
   =================== */

.breadcrumb-pharma-vertical {
    flex-direction: column;
    align-items: stretch;
    background: transparent;
    gap: 0.25rem;
}

.breadcrumb-pharma-vertical .breadcrumb-pharma-item {
    position: relative;
}

.breadcrumb-pharma-vertical .breadcrumb-pharma-item:not(:last-child)::after {
    display: none;
}

.breadcrumb-pharma-vertical .breadcrumb-pharma-item:not(:last-child)::before {
    content: '';
    position: absolute;
    left: 1.25rem;
    top: 100%;
    width: 2px;
    height: 0.25rem;
    background: var(--soft-arctic);
}

.breadcrumb-pharma-vertical .breadcrumb-pharma-link {
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
}

.breadcrumb-pharma-vertical .breadcrumb-pharma-item:first-child .breadcrumb-pharma-link {
    border-radius: 0.375rem;
}

/* ===================
   DARK MODE
   =================== */

:root.dark-mode .breadcrumb-pharma,
[data-theme="dark"] .breadcrumb-pharma {
    background: var(--soft-arctic);
}

:root.dark-mode .breadcrumb-pharma-link,
[data-theme="dark"] .breadcrumb-pharma-link {
    background: var(--soft-arctic);
}

:root.dark-mode .breadcrumb-pharma-item:not(:last-child)::after,
[data-theme="dark"] .breadcrumb-pharma-item:not(:last-child)::after {
    border-left-color: var(--soft-arctic);
}

:root.dark-mode .breadcrumb-pharma-link:hover,
[data-theme="dark"] .breadcrumb-pharma-link:hover {
    background: rgba(183, 228, 213, 0.1);
}

:root.dark-mode .breadcrumb-pharma-count,
[data-theme="dark"] .breadcrumb-pharma-count {
    background: rgba(255, 255, 255, 0.1);
}

/* ===================
   RESPONSIVE
   =================== */

@media (max-width: 768px) {
    .breadcrumb-pharma {
        font-size: 0.75rem;
    }

    .breadcrumb-pharma-link {
        padding: 0.5rem 0.75rem 0.5rem 1rem;
    }

    .breadcrumb-pharma-item:first-child .breadcrumb-pharma-link {
        padding-left: 0.75rem;
    }

    /* Hide text, show only icons on mobile */
    .breadcrumb-pharma-mobile-icons .breadcrumb-pharma-text {
        display: none;
    }

    .breadcrumb-pharma-mobile-icons .breadcrumb-pharma-icon {
        margin-right: 0;
    }
}