breadcrumbs.css

harun.bspt2014@gmail.com

I’ll build this as a production-ready breadcrumbs.css for RX Theme: base layout, responsive behavior, accessibility states, schema-friendly separators, dark mode, RTL support, print mode, and many reusable modifier classes.

Below is a large advanced-level breadcrumbs.css file for:

assets/static/static-css/components/breadcrumbs.css

You can paste this full code into that file.

/*!
 * RX Theme - Breadcrumbs Component
 * File: assets/static/static-css/components/breadcrumbs.css
 * Purpose: Advanced responsive breadcrumb navigation styling
 * Author: RX Theme
 */

/* ==========================================================================
   1. Breadcrumb Root Variables
   ========================================================================== */

:root {
  --rx-breadcrumb-font-size: 0.875rem;
  --rx-breadcrumb-font-size-sm: 0.8125rem;
  --rx-breadcrumb-font-weight: 500;
  --rx-breadcrumb-line-height: 1.5;

  --rx-breadcrumb-gap: 0.45rem;
  --rx-breadcrumb-item-gap: 0.35rem;

  --rx-breadcrumb-padding-y: 0.625rem;
  --rx-breadcrumb-padding-x: 0;
  --rx-breadcrumb-margin-y: 0.75rem;
  --rx-breadcrumb-margin-x: 0;

  --rx-breadcrumb-color: var(--rx-color-text-muted, #64748b);
  --rx-breadcrumb-color-hover: var(--rx-color-primary, #2563eb);
  --rx-breadcrumb-color-active: var(--rx-color-text, #0f172a);
  --rx-breadcrumb-bg: transparent;

  --rx-breadcrumb-link-bg-hover: rgba(37, 99, 235, 0.08);
  --rx-breadcrumb-link-bg-active: rgba(37, 99, 235, 0.12);

  --rx-breadcrumb-separator-color: var(--rx-color-border-strong, #94a3b8);
  --rx-breadcrumb-separator-size: 0.8em;
  --rx-breadcrumb-separator-opacity: 0.75;

  --rx-breadcrumb-radius: 0.375rem;
  --rx-breadcrumb-pill-radius: 999px;

  --rx-breadcrumb-border-color: var(--rx-color-border, #e2e8f0);
  --rx-breadcrumb-shadow: none;

  --rx-breadcrumb-focus-ring: 0 0 0 3px rgba(37, 99, 235, 0.22);
  --rx-breadcrumb-transition:
    color 160ms ease,
    background-color 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

/* ==========================================================================
   2. Main Breadcrumb Wrapper
   ========================================================================== */

.rx-breadcrumbs,
.breadcrumbs,
.breadcrumb,
nav[aria-label="Breadcrumb"],
nav[aria-label="breadcrumb"] {
  display: block;
  width: 100%;
  margin: var(--rx-breadcrumb-margin-y) var(--rx-breadcrumb-margin-x);
  padding: var(--rx-breadcrumb-padding-y) var(--rx-breadcrumb-padding-x);
  color: var(--rx-breadcrumb-color);
  font-size: var(--rx-breadcrumb-font-size);
  font-weight: var(--rx-breadcrumb-font-weight);
  line-height: var(--rx-breadcrumb-line-height);
  background: var(--rx-breadcrumb-bg);
  box-shadow: var(--rx-breadcrumb-shadow);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Prevent accidental overflow from long category/page names */
.rx-breadcrumbs *,
.breadcrumbs *,
.breadcrumb * {
  box-sizing: border-box;
}

/* ==========================================================================
   3. Breadcrumb List
   ========================================================================== */

.rx-breadcrumbs__list,
.rx-breadcrumb-list,
.breadcrumb-list,
.breadcrumbs ol,
.breadcrumbs ul,
.breadcrumb ol,
.breadcrumb ul,
nav[aria-label="Breadcrumb"] ol,
nav[aria-label="breadcrumb"] ol,
nav[aria-label="Breadcrumb"] ul,
nav[aria-label="breadcrumb"] ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--rx-breadcrumb-gap);
  max-width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ==========================================================================
   4. Breadcrumb Items
   ========================================================================== */

.rx-breadcrumbs__item,
.rx-breadcrumb-item,
.breadcrumb-item,
.breadcrumbs li,
.breadcrumb li {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-width: 0;
  max-width: 100%;
  color: inherit;
  white-space: nowrap;
}

/* Current page item */
.rx-breadcrumbs__item[aria-current="page"],
.rx-breadcrumb-item[aria-current="page"],
.breadcrumb-item[aria-current="page"],
.breadcrumbs li[aria-current="page"],
.breadcrumb li[aria-current="page"] {
  color: var(--rx-breadcrumb-color-active);
  font-weight: 600;
  cursor: default;
}

/* ==========================================================================
   5. Breadcrumb Links
   ========================================================================== */

.rx-breadcrumbs__link,
.rx-breadcrumb-link,
.breadcrumb-link,
.breadcrumbs a,
.breadcrumb a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--rx-breadcrumb-item-gap);
  max-width: 100%;
  padding: 0.15rem 0.3rem;
  color: var(--rx-breadcrumb-color);
  font: inherit;
  text-decoration: none;
  border-radius: var(--rx-breadcrumb-radius);
  outline: none;
  transition: var(--rx-breadcrumb-transition);
  -webkit-tap-highlight-color: transparent;
}

.rx-breadcrumbs__link:hover,
.rx-breadcrumb-link:hover,
.breadcrumb-link:hover,
.breadcrumbs a:hover,
.breadcrumb a:hover {
  color: var(--rx-breadcrumb-color-hover);
  background-color: var(--rx-breadcrumb-link-bg-hover);
  text-decoration: none;
}

.rx-breadcrumbs__link:active,
.rx-breadcrumb-link:active,
.breadcrumb-link:active,
.breadcrumbs a:active,
.breadcrumb a:active {
  color: var(--rx-breadcrumb-color-hover);
  background-color: var(--rx-breadcrumb-link-bg-active);
  transform: translateY(1px);
}

.rx-breadcrumbs__link:focus-visible,
.rx-breadcrumb-link:focus-visible,
.breadcrumb-link:focus-visible,
.breadcrumbs a:focus-visible,
.breadcrumb a:focus-visible {
  color: var(--rx-breadcrumb-color-hover);
  box-shadow: var(--rx-breadcrumb-focus-ring);
}

/* Current page text */
.rx-breadcrumbs__current,
.rx-breadcrumb-current,
.breadcrumb-current,
.breadcrumbs .current,
.breadcrumb .current {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: 0.15rem 0.3rem;
  color: var(--rx-breadcrumb-color-active);
  font-weight: 600;
  border-radius: var(--rx-breadcrumb-radius);
}

/* ==========================================================================
   6. Separators
   ========================================================================== */

.rx-breadcrumbs__separator,
.rx-breadcrumb-separator,
.breadcrumb-separator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--rx-breadcrumb-separator-color);
  font-size: var(--rx-breadcrumb-separator-size);
  opacity: var(--rx-breadcrumb-separator-opacity);
  pointer-events: none;
  user-select: none;
}

/* Auto separator for list-based breadcrumbs */
.rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
.rx-breadcrumb-item + .rx-breadcrumb-item::before,
.breadcrumb-item + .breadcrumb-item::before,
.breadcrumbs li + li::before,
.breadcrumb li + li::before {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-inline: 0.15rem 0.45rem;
  color: var(--rx-breadcrumb-separator-color);
  font-size: var(--rx-breadcrumb-separator-size);
  opacity: var(--rx-breadcrumb-separator-opacity);
  content: "/";
}

/* Separator variants */
.rx-breadcrumbs--chevron .rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
.rx-breadcrumbs--chevron .rx-breadcrumb-item + .rx-breadcrumb-item::before,
.breadcrumbs--chevron li + li::before {
  content: "›";
  font-size: 1rem;
}

.rx-breadcrumbs--arrow .rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
.rx-breadcrumbs--arrow .rx-breadcrumb-item + .rx-breadcrumb-item::before,
.breadcrumbs--arrow li + li::before {
  content: "→";
}

.rx-breadcrumbs--dot .rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
.rx-breadcrumbs--dot .rx-breadcrumb-item + .rx-breadcrumb-item::before,
.breadcrumbs--dot li + li::before {
  content: "•";
}

.rx-breadcrumbs--pipe .rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
.rx-breadcrumbs--pipe .rx-breadcrumb-item + .rx-breadcrumb-item::before,
.breadcrumbs--pipe li + li::before {
  content: "|";
}

.rx-breadcrumbs--double-slash .rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
.rx-breadcrumbs--double-slash .rx-breadcrumb-item + .rx-breadcrumb-item::before,
.breadcrumbs--double-slash li + li::before {
  content: "//";
}

/* Remove duplicated separator when manual separator element exists */
.rx-breadcrumbs__item:has(.rx-breadcrumbs__separator)::before,
.rx-breadcrumb-item:has(.rx-breadcrumb-separator)::before,
.breadcrumb-item:has(.breadcrumb-separator)::before {
  content: none;
}

/* ==========================================================================
   7. Icons
   ========================================================================== */

.rx-breadcrumbs__icon,
.rx-breadcrumb-icon,
.breadcrumb-icon {
  display: inline-flex;
  flex: 0 0 auto;
  width: 1em;
  height: 1em;
  color: currentColor;
  line-height: 1;
}

.rx-breadcrumbs__icon svg,
.rx-breadcrumb-icon svg,
.breadcrumb-icon svg {
  display: block;
  width: 1em;
  height: 1em;
  fill: currentColor;
  stroke: currentColor;
}

/* Home icon spacing */
.rx-breadcrumbs__home,
.rx-breadcrumb-home,
.breadcrumb-home {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* Icon-only home link */
.rx-breadcrumbs__home--icon-only,
.rx-breadcrumb-home--icon-only {
  width: 2rem;
  height: 2rem;
  justify-content: center;
  padding: 0;
}

/* ==========================================================================
   8. Text Overflow and Truncation
   ========================================================================== */

.rx-breadcrumbs__text,
.rx-breadcrumb-text,
.breadcrumb-text {
  display: inline-block;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
}

/* Truncate full breadcrumb line */
.rx-breadcrumbs--truncate .rx-breadcrumbs__list,
.rx-breadcrumbs--truncate .rx-breadcrumb-list,
.breadcrumbs--truncate ol,
.breadcrumbs--truncate ul {
  flex-wrap: nowrap;
  overflow: hidden;
}

.rx-breadcrumbs--truncate .rx-breadcrumbs__item,
.rx-breadcrumbs--truncate .rx-breadcrumb-item,
.breadcrumbs--truncate li {
  overflow: hidden;
}

.rx-breadcrumbs--truncate .rx-breadcrumbs__item:not(:first-child):not(:last-child),
.rx-breadcrumbs--truncate .rx-breadcrumb-item:not(:first-child):not(:last-child),
.breadcrumbs--truncate li:not(:first-child):not(:last-child) {
  flex: 0 1 auto;
}

.rx-breadcrumbs--truncate .rx-breadcrumbs__item:last-child,
.rx-breadcrumbs--truncate .rx-breadcrumb-item:last-child,
.breadcrumbs--truncate li:last-child {
  flex: 1 1 auto;
}

.rx-breadcrumbs--truncate .rx-breadcrumbs__link,
.rx-breadcrumbs--truncate .rx-breadcrumb-link,
.rx-breadcrumbs--truncate .rx-breadcrumbs__current,
.rx-breadcrumbs--truncate .rx-breadcrumb-current,
.breadcrumbs--truncate a,
.breadcrumbs--truncate .current {
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Limit current page title */
.rx-breadcrumbs--limit-current .rx-breadcrumbs__item:last-child,
.rx-breadcrumbs--limit-current .rx-breadcrumb-item:last-child,
.breadcrumbs--limit-current li:last-child {
  max-width: min(42rem, 50vw);
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==========================================================================
   9. Layout Variants
   ========================================================================== */

/* Compact */
.rx-breadcrumbs--compact {
  --rx-breadcrumb-font-size: 0.8125rem;
  --rx-breadcrumb-gap: 0.25rem;
  --rx-breadcrumb-padding-y: 0.35rem;
}

/* Comfortable */
.rx-breadcrumbs--comfortable {
  --rx-breadcrumb-font-size: 0.9375rem;
  --rx-breadcrumb-gap: 0.6rem;
  --rx-breadcrumb-padding-y: 0.85rem;
}

/* Large */
.rx-breadcrumbs--large {
  --rx-breadcrumb-font-size: 1rem;
  --rx-breadcrumb-gap: 0.75rem;
  --rx-breadcrumb-padding-y: 1rem;
}

/* Centered */
.rx-breadcrumbs--center .rx-breadcrumbs__list,
.rx-breadcrumbs--center .rx-breadcrumb-list,
.breadcrumbs--center ol,
.breadcrumbs--center ul {
  justify-content: center;
}

/* Right aligned */
.rx-breadcrumbs--end .rx-breadcrumbs__list,
.rx-breadcrumbs--end .rx-breadcrumb-list,
.breadcrumbs--end ol,
.breadcrumbs--end ul {
  justify-content: flex-end;
}

/* Full-width background */
.rx-breadcrumbs--bar {
  padding: 0.75rem 1rem;
  background: var(--rx-color-surface-soft, #f8fafc);
  border: 1px solid var(--rx-breadcrumb-border-color);
  border-radius: var(--rx-breadcrumb-radius);
}

/* Inner container style */
.rx-breadcrumbs--container {
  padding-inline: max(1rem, calc((100vw - var(--rx-container-width, 1200px)) / 2));
}

/* ==========================================================================
   10. Visual Style Variants
   ========================================================================== */

/* Soft card */
.rx-breadcrumbs--soft {
  padding: 0.75rem 1rem;
  background: var(--rx-color-surface-soft, #f8fafc);
  border-radius: 0.75rem;
}

/* Bordered */
.rx-breadcrumbs--bordered {
  padding: 0.75rem 1rem;
  border: 1px solid var(--rx-breadcrumb-border-color);
  border-radius: 0.75rem;
}

/* Shadow */
.rx-breadcrumbs--shadow {
  padding: 0.75rem 1rem;
  background: var(--rx-color-surface, #ffffff);
  border: 1px solid var(--rx-breadcrumb-border-color);
  border-radius: 0.75rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

/* Pill link style */
.rx-breadcrumbs--pill .rx-breadcrumbs__link,
.rx-breadcrumbs--pill .rx-breadcrumb-link,
.rx-breadcrumbs--pill .rx-breadcrumbs__current,
.rx-breadcrumbs--pill .rx-breadcrumb-current,
.breadcrumbs--pill a,
.breadcrumbs--pill .current {
  padding: 0.25rem 0.65rem;
  border-radius: var(--rx-breadcrumb-pill-radius);
}

/* Underline hover */
.rx-breadcrumbs--underline .rx-breadcrumbs__link,
.rx-breadcrumbs--underline .rx-breadcrumb-link,
.breadcrumbs--underline a {
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 1px;
}

.rx-breadcrumbs--underline .rx-breadcrumbs__link:hover,
.rx-breadcrumbs--underline .rx-breadcrumb-link:hover,
.breadcrumbs--underline a:hover {
  background-color: transparent;
  background-size: 100% 1px;
}

/* Minimal */
.rx-breadcrumbs--minimal .rx-breadcrumbs__link,
.rx-breadcrumbs--minimal .rx-breadcrumb-link,
.breadcrumbs--minimal a {
  padding-inline: 0;
}

.rx-breadcrumbs--minimal .rx-breadcrumbs__link:hover,
.rx-breadcrumbs--minimal .rx-breadcrumb-link:hover,
.breadcrumbs--minimal a:hover {
  background: transparent;
}

/* ==========================================================================
   11. Medical / RX Theme Specific Utility Styles
   ========================================================================== */

.rx-breadcrumbs--medical {
  --rx-breadcrumb-color-hover: var(--rx-color-medical-primary, #0f766e);
  --rx-breadcrumb-link-bg-hover: rgba(15, 118, 110, 0.09);
  --rx-breadcrumb-link-bg-active: rgba(15, 118, 110, 0.14);
  --rx-breadcrumb-focus-ring: 0 0 0 3px rgba(15, 118, 110, 0.22);
}

.rx-breadcrumbs--doctor {
  --rx-breadcrumb-color-hover: var(--rx-color-doctor, #0369a1);
  --rx-breadcrumb-link-bg-hover: rgba(3, 105, 161, 0.09);
}

.rx-breadcrumbs--health {
  --rx-breadcrumb-color-hover: var(--rx-color-health, #16a34a);
  --rx-breadcrumb-link-bg-hover: rgba(22, 163, 74, 0.09);
}

/* Category-based breadcrumb color hints */
.rx-breadcrumbs[data-rx-section="disease"] {
  --rx-breadcrumb-color-hover: #dc2626;
  --rx-breadcrumb-link-bg-hover: rgba(220, 38, 38, 0.08);
}

.rx-breadcrumbs[data-rx-section="medicine"] {
  --rx-breadcrumb-color-hover: #7c3aed;
  --rx-breadcrumb-link-bg-hover: rgba(124, 58, 237, 0.08);
}

.rx-breadcrumbs[data-rx-section="diagnosis"] {
  --rx-breadcrumb-color-hover: #0891b2;
  --rx-breadcrumb-link-bg-hover: rgba(8, 145, 178, 0.08);
}

.rx-breadcrumbs[data-rx-section="treatment"] {
  --rx-breadcrumb-color-hover: #059669;
  --rx-breadcrumb-link-bg-hover: rgba(5, 150, 105, 0.08);
}

/* ==========================================================================
   12. Sticky Breadcrumbs
   ========================================================================== */

.rx-breadcrumbs--sticky {
  position: sticky;
  top: var(--rx-admin-bar-offset, 0);
  z-index: 20;
  margin-top: 0;
  background: color-mix(in srgb, var(--rx-color-surface, #ffffff) 92%, transparent);
  border-bottom: 1px solid var(--rx-breadcrumb-border-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.admin-bar .rx-breadcrumbs--sticky {
  top: 32px;
}

@media (max-width: 782px) {
  .admin-bar .rx-breadcrumbs--sticky {
    top: 46px;
  }
}

/* ==========================================================================
   13. Scrollable Breadcrumbs for Mobile
   ========================================================================== */

.rx-breadcrumbs--scroll .rx-breadcrumbs__list,
.rx-breadcrumbs--scroll .rx-breadcrumb-list,
.breadcrumbs--scroll ol,
.breadcrumbs--scroll ul {
  flex-wrap: nowrap;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 0.15rem;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.rx-breadcrumbs--scroll .rx-breadcrumbs__item,
.rx-breadcrumbs--scroll .rx-breadcrumb-item,
.breadcrumbs--scroll li {
  flex: 0 0 auto;
}

.rx-breadcrumbs--scroll .rx-breadcrumbs__list::-webkit-scrollbar,
.rx-breadcrumbs--scroll .rx-breadcrumb-list::-webkit-scrollbar,
.breadcrumbs--scroll ol::-webkit-scrollbar,
.breadcrumbs--scroll ul::-webkit-scrollbar {
  height: 0.35rem;
}

.rx-breadcrumbs--scroll .rx-breadcrumbs__list::-webkit-scrollbar-thumb,
.rx-breadcrumbs--scroll .rx-breadcrumb-list::-webkit-scrollbar-thumb,
.breadcrumbs--scroll ol::-webkit-scrollbar-thumb,
.breadcrumbs--scroll ul::-webkit-scrollbar-thumb {
  background: var(--rx-color-border-strong, #94a3b8);
  border-radius: 999px;
}

/* ==========================================================================
   14. Collapsed Breadcrumb Pattern
   ========================================================================== */

.rx-breadcrumbs--collapse .rx-breadcrumbs__item:not(:first-child):not(:last-child):not(.rx-breadcrumbs__ellipsis),
.rx-breadcrumbs--collapse .rx-breadcrumb-item:not(:first-child):not(:last-child):not(.rx-breadcrumb-ellipsis),
.breadcrumbs--collapse li:not(:first-child):not(:last-child):not(.breadcrumb-ellipsis) {
  display: none;
}

.rx-breadcrumbs__ellipsis,
.rx-breadcrumb-ellipsis,
.breadcrumb-ellipsis {
  display: inline-flex;
  align-items: center;
  color: var(--rx-breadcrumb-color);
}

.rx-breadcrumbs__ellipsis::before,
.rx-breadcrumb-ellipsis::before,
.breadcrumb-ellipsis::before {
  margin-inline: 0.15rem 0.45rem;
  color: var(--rx-breadcrumb-separator-color);
  opacity: var(--rx-breadcrumb-separator-opacity);
  content: "/";
}

.rx-breadcrumbs__ellipsis-button,
.rx-breadcrumb-ellipsis-button,
.breadcrumb-ellipsis-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.75rem;
  min-height: 1.75rem;
  padding: 0 0.45rem;
  color: var(--rx-breadcrumb-color);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--rx-breadcrumb-radius);
  cursor: pointer;
  transition: var(--rx-breadcrumb-transition);
}

.rx-breadcrumbs__ellipsis-button:hover,
.rx-breadcrumb-ellipsis-button:hover,
.breadcrumb-ellipsis-button:hover {
  color: var(--rx-breadcrumb-color-hover);
  background: var(--rx-breadcrumb-link-bg-hover);
}

.rx-breadcrumbs__ellipsis-button:focus-visible,
.rx-breadcrumb-ellipsis-button:focus-visible,
.breadcrumb-ellipsis-button:focus-visible {
  outline: none;
  box-shadow: var(--rx-breadcrumb-focus-ring);
}

/* ==========================================================================
   15. Dropdown Breadcrumb Support
   ========================================================================== */

.rx-breadcrumbs__dropdown,
.rx-breadcrumb-dropdown,
.breadcrumb-dropdown {
  position: relative;
  display: inline-flex;
}

.rx-breadcrumbs__dropdown-menu,
.rx-breadcrumb-dropdown-menu,
.breadcrumb-dropdown-menu {
  position: absolute;
  inset-block-start: calc(100% + 0.35rem);
  inset-inline-start: 0;
  z-index: 50;
  display: none;
  min-width: 12rem;
  max-width: min(20rem, calc(100vw - 2rem));
  padding: 0.35rem;
  background: var(--rx-color-surface, #ffffff);
  border: 1px solid var(--rx-breadcrumb-border-color);
  border-radius: 0.625rem;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.14);
}

.rx-breadcrumbs__dropdown:hover .rx-breadcrumbs__dropdown-menu,
.rx-breadcrumbs__dropdown:focus-within .rx-breadcrumbs__dropdown-menu,
.rx-breadcrumb-dropdown:hover .rx-breadcrumb-dropdown-menu,
.rx-breadcrumb-dropdown:focus-within .rx-breadcrumb-dropdown-menu,
.breadcrumb-dropdown:hover .breadcrumb-dropdown-menu,
.breadcrumb-dropdown:focus-within .breadcrumb-dropdown-menu {
  display: block;
}

.rx-breadcrumbs__dropdown-item,
.rx-breadcrumb-dropdown-item,
.breadcrumb-dropdown-item {
  display: block;
  width: 100%;
  padding: 0.5rem 0.65rem;
  color: var(--rx-color-text, #0f172a);
  text-decoration: none;
  border-radius: 0.45rem;
  white-space: normal;
}

.rx-breadcrumbs__dropdown-item:hover,
.rx-breadcrumb-dropdown-item:hover,
.breadcrumb-dropdown-item:hover {
  color: var(--rx-breadcrumb-color-hover);
  background: var(--rx-breadcrumb-link-bg-hover);
}

/* ==========================================================================
   16. Breadcrumb Skeleton Loading
   ========================================================================== */

.rx-breadcrumbs--loading .rx-breadcrumbs__item,
.rx-breadcrumbs--loading .rx-breadcrumb-item,
.breadcrumbs--loading li {
  width: 5rem;
  height: 1.25rem;
  overflow: hidden;
  color: transparent;
  background:
    linear-gradient(
      90deg,
      var(--rx-color-surface-soft, #f1f5f9) 25%,
      var(--rx-color-border, #e2e8f0) 37%,
      var(--rx-color-surface-soft, #f1f5f9) 63%
    );
  background-size: 400% 100%;
  border-radius: var(--rx-breadcrumb-radius);
  animation: rx-breadcrumb-skeleton 1.3s ease-in-out infinite;
}

.rx-breadcrumbs--loading .rx-breadcrumbs__item::before,
.rx-breadcrumbs--loading .rx-breadcrumb-item::before,
.breadcrumbs--loading li::before {
  content: none;
}

@keyframes rx-breadcrumb-skeleton {
  0% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0 50%;
  }
}

/* ==========================================================================
   17. Single-Line SEO Header Area Support
   ========================================================================== */

.rx-page-header .rx-breadcrumbs,
.rx-archive-header .rx-breadcrumbs,
.rx-single-header .rx-breadcrumbs,
.rx-post-header .rx-breadcrumbs {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.rx-page-title + .rx-breadcrumbs,
.rx-post-title + .rx-breadcrumbs,
.rx-archive-title + .rx-breadcrumbs {
  margin-top: 0.5rem;
}

/* Breadcrumb before title */
.rx-breadcrumbs + .rx-page-title,
.rx-breadcrumbs + .rx-post-title,
.rx-breadcrumbs + .rx-archive-title {
  margin-top: 0.35rem;
}

/* ==========================================================================
   18. WordPress Common Compatibility
   ========================================================================== */

/* Yoast SEO */
#breadcrumbs {
  margin: var(--rx-breadcrumb-margin-y) 0;
  color: var(--rx-breadcrumb-color);
  font-size: var(--rx-breadcrumb-font-size);
  line-height: var(--rx-breadcrumb-line-height);
}

#breadcrumbs a {
  color: var(--rx-breadcrumb-color);
  text-decoration: none;
  border-radius: var(--rx-breadcrumb-radius);
  transition: var(--rx-breadcrumb-transition);
}

#breadcrumbs a:hover {
  color: var(--rx-breadcrumb-color-hover);
}

/* Rank Math */
.rank-math-breadcrumb,
.rank-math-breadcrumb p {
  margin: var(--rx-breadcrumb-margin-y) 0;
  color: var(--rx-breadcrumb-color);
  font-size: var(--rx-breadcrumb-font-size);
  line-height: var(--rx-breadcrumb-line-height);
}

.rank-math-breadcrumb a {
  color: var(--rx-breadcrumb-color);
  text-decoration: none;
}

.rank-math-breadcrumb a:hover {
  color: var(--rx-breadcrumb-color-hover);
}

/* Breadcrumb NavXT */
.breadcrumb-trail,
.trail-browse,
.trail-items,
.trail-item {
  color: var(--rx-breadcrumb-color);
  font-size: var(--rx-breadcrumb-font-size);
}

.trail-items {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--rx-breadcrumb-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.trail-item a {
  color: var(--rx-breadcrumb-color);
  text-decoration: none;
}

.trail-item a:hover {
  color: var(--rx-breadcrumb-color-hover);
}

/* WooCommerce */
.woocommerce-breadcrumb {
  margin: var(--rx-breadcrumb-margin-y) 0;
  color: var(--rx-breadcrumb-color);
  font-size: var(--rx-breadcrumb-font-size);
  line-height: var(--rx-breadcrumb-line-height);
}

.woocommerce-breadcrumb a {
  color: var(--rx-breadcrumb-color);
  text-decoration: none;
}

.woocommerce-breadcrumb a:hover {
  color: var(--rx-breadcrumb-color-hover);
}

/* ==========================================================================
   19. Accessibility Helpers
   ========================================================================== */

.rx-breadcrumbs [aria-current="page"] a,
.breadcrumbs [aria-current="page"] a,
.breadcrumb [aria-current="page"] a {
  color: var(--rx-breadcrumb-color-active);
  pointer-events: none;
  cursor: default;
}

.rx-breadcrumbs a[aria-disabled="true"],
.breadcrumbs a[aria-disabled="true"],
.breadcrumb a[aria-disabled="true"] {
  color: var(--rx-color-text-disabled, #94a3b8);
  pointer-events: none;
  cursor: not-allowed;
}

/* Screen-reader only text */
.rx-breadcrumbs__sr,
.rx-breadcrumb-sr,
.breadcrumb-sr {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* High contrast mode */
@media (forced-colors: active) {
  .rx-breadcrumbs__link,
  .rx-breadcrumb-link,
  .breadcrumb-link,
  .breadcrumbs a,
  .breadcrumb a {
    forced-color-adjust: auto;
  }

  .rx-breadcrumbs__link:focus-visible,
  .rx-breadcrumb-link:focus-visible,
  .breadcrumb-link:focus-visible,
  .breadcrumbs a:focus-visible,
  .breadcrumb a:focus-visible {
    outline: 2px solid CanvasText;
    outline-offset: 2px;
    box-shadow: none;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .rx-breadcrumbs *,
  .breadcrumbs *,
  .breadcrumb * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   20. Dark Mode
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  :root {
    --rx-breadcrumb-color: var(--rx-color-text-muted, #94a3b8);
    --rx-breadcrumb-color-hover: var(--rx-color-primary-light, #60a5fa);
    --rx-breadcrumb-color-active: var(--rx-color-text, #f8fafc);
    --rx-breadcrumb-border-color: var(--rx-color-border, #334155);
    --rx-breadcrumb-separator-color: var(--rx-color-border-strong, #64748b);
    --rx-breadcrumb-link-bg-hover: rgba(96, 165, 250, 0.12);
    --rx-breadcrumb-link-bg-active: rgba(96, 165, 250, 0.18);
  }

  .rx-breadcrumbs--bar,
  .rx-breadcrumbs--soft {
    background: var(--rx-color-surface-soft, #111827);
  }

  .rx-breadcrumbs--shadow {
    background: var(--rx-color-surface, #0f172a);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  }

  .rx-breadcrumbs__dropdown-menu,
  .rx-breadcrumb-dropdown-menu,
  .breadcrumb-dropdown-menu {
    background: var(--rx-color-surface, #0f172a);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  }

  .rx-breadcrumbs__dropdown-item,
  .rx-breadcrumb-dropdown-item,
  .breadcrumb-dropdown-item {
    color: var(--rx-color-text, #f8fafc);
  }
}

/* Manual dark class support */
.dark .rx-breadcrumbs,
[data-theme="dark"] .rx-breadcrumbs {
  --rx-breadcrumb-color: var(--rx-color-text-muted, #94a3b8);
  --rx-breadcrumb-color-hover: var(--rx-color-primary-light, #60a5fa);
  --rx-breadcrumb-color-active: var(--rx-color-text, #f8fafc);
  --rx-breadcrumb-border-color: var(--rx-color-border, #334155);
  --rx-breadcrumb-separator-color: var(--rx-color-border-strong, #64748b);
  --rx-breadcrumb-link-bg-hover: rgba(96, 165, 250, 0.12);
  --rx-breadcrumb-link-bg-active: rgba(96, 165, 250, 0.18);
}

/* ==========================================================================
   21. RTL Support
   ========================================================================== */

[dir="rtl"] .rx-breadcrumbs__list,
[dir="rtl"] .rx-breadcrumb-list,
[dir="rtl"] .breadcrumbs ol,
[dir="rtl"] .breadcrumbs ul,
.rtl .rx-breadcrumbs__list,
.rtl .rx-breadcrumb-list,
.rtl .breadcrumbs ol,
.rtl .breadcrumbs ul {
  direction: rtl;
}

[dir="rtl"] .rx-breadcrumbs--chevron .rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
[dir="rtl"] .rx-breadcrumbs--chevron .rx-breadcrumb-item + .rx-breadcrumb-item::before,
.rtl .rx-breadcrumbs--chevron .rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
.rtl .rx-breadcrumbs--chevron .rx-breadcrumb-item + .rx-breadcrumb-item::before {
  content: "‹";
}

[dir="rtl"] .rx-breadcrumbs--arrow .rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
[dir="rtl"] .rx-breadcrumbs--arrow .rx-breadcrumb-item + .rx-breadcrumb-item::before,
.rtl .rx-breadcrumbs--arrow .rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
.rtl .rx-breadcrumbs--arrow .rx-breadcrumb-item + .rx-breadcrumb-item::before {
  content: "←";
}

/* ==========================================================================
   22. Responsive Design
   ========================================================================== */

@media (max-width: 1024px) {
  .rx-breadcrumbs {
    --rx-breadcrumb-font-size: 0.85rem;
  }

  .rx-breadcrumbs--limit-current .rx-breadcrumbs__item:last-child,
  .rx-breadcrumbs--limit-current .rx-breadcrumb-item:last-child,
  .breadcrumbs--limit-current li:last-child {
    max-width: 45vw;
  }
}

@media (max-width: 768px) {
  .rx-breadcrumbs,
  .breadcrumbs,
  .breadcrumb {
    --rx-breadcrumb-font-size: var(--rx-breadcrumb-font-size-sm);
    --rx-breadcrumb-gap: 0.25rem;
    margin-block: 0.5rem;
  }

  .rx-breadcrumbs--mobile-scroll .rx-breadcrumbs__list,
  .rx-breadcrumbs--mobile-scroll .rx-breadcrumb-list,
  .breadcrumbs--mobile-scroll ol,
  .breadcrumbs--mobile-scroll ul {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .rx-breadcrumbs--mobile-hide-middle .rx-breadcrumbs__item:not(:first-child):not(:last-child),
  .rx-breadcrumbs--mobile-hide-middle .rx-breadcrumb-item:not(:first-child):not(:last-child),
  .breadcrumbs--mobile-hide-middle li:not(:first-child):not(:last-child) {
    display: none;
  }

  .rx-breadcrumbs--limit-current .rx-breadcrumbs__item:last-child,
  .rx-breadcrumbs--limit-current .rx-breadcrumb-item:last-child,
  .breadcrumbs--limit-current li:last-child {
    max-width: 58vw;
  }

  .rx-breadcrumbs__dropdown-menu,
  .rx-breadcrumb-dropdown-menu,
  .breadcrumb-dropdown-menu {
    max-width: calc(100vw - 2rem);
  }
}

@media (max-width: 480px) {
  .rx-breadcrumbs,
  .breadcrumbs,
  .breadcrumb {
    --rx-breadcrumb-font-size: 0.78rem;
    --rx-breadcrumb-gap: 0.2rem;
  }

  .rx-breadcrumbs__link,
  .rx-breadcrumb-link,
  .breadcrumb-link,
  .breadcrumbs a,
  .breadcrumb a,
  .rx-breadcrumbs__current,
  .rx-breadcrumb-current,
  .breadcrumb-current {
    padding-inline: 0.2rem;
  }

  .rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
  .rx-breadcrumb-item + .rx-breadcrumb-item::before,
  .breadcrumb-item + .breadcrumb-item::before,
  .breadcrumbs li + li::before,
  .breadcrumb li + li::before {
    margin-inline: 0.05rem 0.25rem;
  }

  .rx-breadcrumbs--mobile-only-home-current .rx-breadcrumbs__item:not(:first-child):not(:last-child),
  .rx-breadcrumbs--mobile-only-home-current .rx-breadcrumb-item:not(:first-child):not(:last-child),
  .breadcrumbs--mobile-only-home-current li:not(:first-child):not(:last-child) {
    display: none;
  }

  .rx-breadcrumbs--limit-current .rx-breadcrumbs__item:last-child,
  .rx-breadcrumbs--limit-current .rx-breadcrumb-item:last-child,
  .breadcrumbs--limit-current li:last-child {
    max-width: 62vw;
  }
}

/* ==========================================================================
   23. Container Query Support
   ========================================================================== */

.rx-breadcrumbs-container {
  container-type: inline-size;
}

@container (max-width: 520px) {
  .rx-breadcrumbs-container .rx-breadcrumbs {
    --rx-breadcrumb-font-size: 0.8rem;
    --rx-breadcrumb-gap: 0.2rem;
  }

  .rx-breadcrumbs-container .rx-breadcrumbs__item:not(:first-child):not(:last-child) {
    display: none;
  }
}

/* ==========================================================================
   24. Print Styles
   ========================================================================== */

@media print {
  .rx-breadcrumbs,
  .breadcrumbs,
  .breadcrumb,
  nav[aria-label="Breadcrumb"],
  nav[aria-label="breadcrumb"] {
    display: block;
    margin: 0 0 0.5rem;
    padding: 0;
    color: #000;
    background: transparent;
    border: 0;
    box-shadow: none;
    font-size: 10pt;
  }

  .rx-breadcrumbs a,
  .breadcrumbs a,
  .breadcrumb a {
    color: #000;
    text-decoration: none;
  }

  .rx-breadcrumbs a[href]::after,
  .breadcrumbs a[href]::after,
  .breadcrumb a[href]::after {
    content: "";
  }

  .rx-breadcrumbs--sticky {
    position: static;
    backdrop-filter: none;
  }
}

/* ==========================================================================
   25. Optional Animation
   ========================================================================== */

.rx-breadcrumbs--fade-in {
  animation: rx-breadcrumb-fade-in 280ms ease both;
}

@keyframes rx-breadcrumb-fade-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }

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

.rx-breadcrumbs--slide-in .rx-breadcrumbs__item,
.rx-breadcrumbs--slide-in .rx-breadcrumb-item {
  animation: rx-breadcrumb-slide-in 280ms ease both;
}

.rx-breadcrumbs--slide-in .rx-breadcrumbs__item:nth-child(1),
.rx-breadcrumbs--slide-in .rx-breadcrumb-item:nth-child(1) {
  animation-delay: 20ms;
}

.rx-breadcrumbs--slide-in .rx-breadcrumbs__item:nth-child(2),
.rx-breadcrumbs--slide-in .rx-breadcrumb-item:nth-child(2) {
  animation-delay: 40ms;
}

.rx-breadcrumbs--slide-in .rx-breadcrumbs__item:nth-child(3),
.rx-breadcrumbs--slide-in .rx-breadcrumb-item:nth-child(3) {
  animation-delay: 60ms;
}

.rx-breadcrumbs--slide-in .rx-breadcrumbs__item:nth-child(4),
.rx-breadcrumbs--slide-in .rx-breadcrumb-item:nth-child(4) {
  animation-delay: 80ms;
}

.rx-breadcrumbs--slide-in .rx-breadcrumbs__item:nth-child(5),
.rx-breadcrumbs--slide-in .rx-breadcrumb-item:nth-child(5) {
  animation-delay: 100ms;
}

@keyframes rx-breadcrumb-slide-in {
  from {
    opacity: 0;
    transform: translateX(-0.35rem);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ==========================================================================
   26. Utility Classes
   ========================================================================== */

.rx-breadcrumbs.is-hidden,
.breadcrumbs.is-hidden,
.breadcrumb.is-hidden {
  display: none !important;
}

.rx-breadcrumbs.is-visible,
.breadcrumbs.is-visible,
.breadcrumb.is-visible {
  display: block !important;
}

.rx-breadcrumbs.is-loading {
  pointer-events: none;
}

.rx-breadcrumbs.is-disabled {
  opacity: 0.6;
  pointer-events: none;
}

.rx-breadcrumbs.has-bg {
  padding: 0.75rem 1rem;
  background: var(--rx-color-surface-soft, #f8fafc);
  border-radius: var(--rx-breadcrumb-radius);
}

.rx-breadcrumbs.has-border {
  border: 1px solid var(--rx-breadcrumb-border-color);
}

.rx-breadcrumbs.has-shadow {
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.rx-breadcrumbs.no-margin {
  margin: 0;
}

.rx-breadcrumbs.no-padding {
  padding: 0;
}

.rx-breadcrumbs.no-separator .rx-breadcrumbs__item + .rx-breadcrumbs__item::before,
.rx-breadcrumbs.no-separator .rx-breadcrumb-item + .rx-breadcrumb-item::before,
.breadcrumbs.no-separator li + li::before {
  content: none;
}

/* ==========================================================================
   27. Recommended HTML Example

   <nav class="rx-breadcrumbs rx-breadcrumbs--chevron rx-breadcrumbs--limit-current"
        aria-label="Breadcrumb">
     <ol class="rx-breadcrumbs__list">
       <li class="rx-breadcrumbs__item">
         <a class="rx-breadcrumbs__link" href="/">
           <span class="rx-breadcrumbs__text">Home</span>
         </a>
       </li>
       <li class="rx-breadcrumbs__item">
         <a class="rx-breadcrumbs__link" href="/diseases/">
           <span class="rx-breadcrumbs__text">Diseases</span>
         </a>
       </li>
       <li class="rx-breadcrumbs__item" aria-current="page">
         <span class="rx-breadcrumbs__current">
           <span class="rx-breadcrumbs__text">Staphyloma</span>
         </span>
       </li>
     </ol>
   </nav>

   ========================================================================== */

Best class for normal use:

<nav class="rx-breadcrumbs rx-breadcrumbs--chevron rx-breadcrumbs--limit-current" aria-label="Breadcrumb">

For mobile-friendly medical article pages, use:

<nav class="rx-breadcrumbs rx-breadcrumbs--medical rx-breadcrumbs--chevron rx-breadcrumbs--mobile-scroll rx-breadcrumbs--limit-current" aria-label="Breadcrumb">

Leave a Reply

Your email address will not be published. Required fields are marked *