/* ==========================================================================
   BREADCRUMB COMPONENT - Centralized Styles
   Scope: All internal pages with breadcrumbs
   Responsive: 320px to 5K
   Browser Support: Chrome 79+, Firefox 75+, Safari 11.1+, Edge 79+

   DESIGN: One consistent look across entire website
   - Primary Blue (#0b5ed7) for links - matches brand identity
   - Dark text (#1a1a1a) for current page
   - White background with subtle shadow
   ========================================================================== */

/* -----------------------------
   DESIGN TOKENS (Site-wide consistent)
   These are FIXED values - same on every page
------------------------------ */
.breadcrumb-nav {
  --breadcrumb-bg: #ffffff;
  --breadcrumb-border: #e5e7eb;
  --breadcrumb-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  --breadcrumb-link-color: #0b5ed7;
  --breadcrumb-link-hover: #084298;
  --breadcrumb-text-dark: #1a1a1a;
  --breadcrumb-text-light: #666;
  --breadcrumb-font: "Lato", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --breadcrumb-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* -----------------------------
   BASE BREADCRUMB STYLES
------------------------------ */
.breadcrumb-nav {
  background: var(--breadcrumb-bg);
  border-bottom: 1px solid var(--breadcrumb-border);
  padding: clamp(16px, 2vw, 24px) 0;
  /* Safe-area-inset support for notched devices (iPhone X+, modern Android) */
  padding-left: max(env(safe-area-inset-left), 0px);
  padding-right: max(env(safe-area-inset-right), 0px);
  position: relative;
  box-shadow: var(--breadcrumb-shadow);
  z-index: 100;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: clamp(13px, 1vw, 17px);
  font-family: var(--breadcrumb-font);
}

.breadcrumb-list li {
  display: flex;
  align-items: center;
  position: relative;
}

/* Separator */
.breadcrumb-list li:not(:last-child)::after {
  content: "\203A"; /* › character */
  margin: 0 10px;
  color: var(--breadcrumb-text-light);
  font-size: clamp(15px, 1.1vw, 18px);
}

/* Links */
.breadcrumb-list a {
  color: var(--breadcrumb-link-color);
  text-decoration: none;
  transition: var(--breadcrumb-transition);
  /* Ensure minimum 44px touch target on mobile */
  padding: 8px 4px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* General link hover - underline all links (caret is now outside <a> tag) */
.breadcrumb-list a:hover {
  color: var(--breadcrumb-link-hover);
  text-decoration: underline;
}

/* Flyout label (span, not a link) - color change only */
.breadcrumb-flyout-label:hover {
  color: var(--breadcrumb-link-hover);
}

/* Current Page - FIX: viewport-aware max-width */
.breadcrumb-list li[aria-current="page"] {
  color: var(--breadcrumb-text-dark);
  font-weight: 500;
  /* Text truncation for long names on narrow screens */
  max-width: max(200px, 50vw);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Desktop: Allow full width for current page */
@media (min-width: 768px) {
  .breadcrumb-list li[aria-current="page"] {
    max-width: none;
  }
}

/* -----------------------------
   SERVICES DROPDOWN MODULE
------------------------------ */
.breadcrumb-list li.breadcrumb-services {
  position: relative;
}

/* Caret indicator - OUTSIDE <a> tag to prevent underline inheritance */
.breadcrumb-caret {
  display: inline-flex;
  align-items: center;
  margin-left: 4px;
  cursor: pointer;
}

.breadcrumb-caret::before {
  content: "\25BC"; /* ▼ character */
  font-size: 0.7em;
  opacity: 0.6;
  transition: transform 0.3s ease, color 0.3s ease;
  color: var(--breadcrumb-link-color);
}

.breadcrumb-list li.breadcrumb-services:hover .breadcrumb-caret::before {
  transform: rotate(180deg);
  color: var(--breadcrumb-link-hover);
}

/* Services Dropdown */
.breadcrumb-services-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: #ffffff;
  border: 1px solid var(--breadcrumb-border);
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  min-width: 280px;
  margin-top: 8px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  z-index: 1000;
  /* Viewport height-aware */
  max-height: min(60vh, 400px);
  overflow-y: auto;
  /* Smooth scrolling for touch devices */
  -webkit-overflow-scrolling: touch;
  /* Improved scrollbar styling */
  scrollbar-width: thin;
  scrollbar-color: var(--breadcrumb-link-color) #f0f0f0;
}

/* Webkit scrollbar styling */
.breadcrumb-services-dropdown::-webkit-scrollbar {
  width: 6px;
}

.breadcrumb-services-dropdown::-webkit-scrollbar-track {
  background: #f0f0f0;
  border-radius: 3px;
}

.breadcrumb-services-dropdown::-webkit-scrollbar-thumb {
  background: var(--breadcrumb-link-color);
  border-radius: 3px;
}

.breadcrumb-services-dropdown::-webkit-scrollbar-thumb:hover {
  background: var(--breadcrumb-link-hover);
}

/* Show dropdown on hover */
.breadcrumb-list li.breadcrumb-services:hover .breadcrumb-services-dropdown,
.breadcrumb-list li.breadcrumb-services.active .breadcrumb-services-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Dropdown Links */
.breadcrumb-services-dropdown a {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  color: var(--breadcrumb-text-dark);
  text-decoration: none;
  font-size: clamp(13px, 0.95vw, 16px);
  transition: background-color 0.2s ease, color 0.2s ease;
  border-left: 3px solid transparent;
  min-height: 44px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.breadcrumb-services-dropdown a:hover {
  background-color: #f8f9fa;
  color: var(--breadcrumb-link-color);
  border-left-color: var(--breadcrumb-link-color);
  text-decoration: none;
}

.breadcrumb-services-dropdown a.active {
  background-color: #e9f2ff;
  color: var(--breadcrumb-link-color);
  font-weight: 600;
  border-left-color: var(--breadcrumb-link-color);
}

/* -----------------------------
   CLIENT SUCCESS FLYOUT MODULE
------------------------------ */
.breadcrumb-list li.breadcrumb-flyout {
  position: relative;
}

.breadcrumb-flyout-label {
  color: var(--breadcrumb-link-color);
  cursor: pointer;
  transition: var(--breadcrumb-transition);
  padding: 8px 4px;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

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

/* Caret indicator - text-decoration: none prevents underline */
.breadcrumb-flyout-label::after {
  content: "\25BC"; /* ▼ character */
  font-size: 0.7em;
  margin-left: 4px;
  opacity: 0.6;
  transition: transform 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.breadcrumb-list li.breadcrumb-flyout:hover .breadcrumb-flyout-label::after {
  transform: rotate(180deg);
}

/* Main dropdown container */
.breadcrumb-flyout-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: #ffffff;
  border: 1px solid var(--breadcrumb-border);
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  min-width: 220px;
  margin-top: 8px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  z-index: 1000;
}

.breadcrumb-list li.breadcrumb-flyout:hover .breadcrumb-flyout-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Category container with flyout */
.breadcrumb-flyout-category {
  position: relative;
}

.breadcrumb-flyout-category-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  color: var(--breadcrumb-text-dark);
  font-weight: 600;
  font-size: clamp(13px, 0.95vw, 16px);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
  min-height: 44px;
}

/* Desktop: Category labels are hover triggers only */
@media (min-width: 992px) {
  .breadcrumb-flyout-category-label {
    cursor: default;
  }
}

.breadcrumb-flyout-category-label::after {
  content: '';
  border: solid #666;
  border-width: 0 2px 2px 0;
  display: inline-block;
  padding: 3px;
  transform: rotate(-45deg);
  margin-left: 10px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.breadcrumb-flyout-category:hover .breadcrumb-flyout-category-label {
  background-color: #f8f9fa;
  color: var(--breadcrumb-link-color);
}

.breadcrumb-flyout-category:hover .breadcrumb-flyout-category-label::after {
  border-color: var(--breadcrumb-link-color);
}

.breadcrumb-flyout-category.active .breadcrumb-flyout-category-label {
  color: var(--breadcrumb-link-color);
  background-color: rgba(11, 94, 215, 0.05);
}

/* Flyout submenu (case studies) */
.breadcrumb-flyout-submenu {
  position: absolute;
  top: 0;
  left: 100%;
  background: #ffffff;
  border: 1px solid var(--breadcrumb-border);
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  min-width: 260px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  z-index: 1001;
  margin-left: 2px;
}

.breadcrumb-flyout-category:hover .breadcrumb-flyout-submenu {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.breadcrumb-flyout-submenu a {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  color: var(--breadcrumb-text-dark);
  text-decoration: none;
  font-size: clamp(13px, 0.95vw, 16px);
  transition: background-color 0.2s ease, color 0.2s ease;
  border-left: 3px solid transparent;
  min-height: 44px;
}

.breadcrumb-flyout-submenu a:hover {
  background-color: #f8f9fa;
  color: var(--breadcrumb-link-color);
  border-left-color: var(--breadcrumb-link-color);
  text-decoration: none;
}

.breadcrumb-flyout-submenu a.active {
  background-color: #e9f2ff;
  color: var(--breadcrumb-link-color);
  font-weight: 600;
  border-left-color: var(--breadcrumb-link-color);
}

/* -----------------------------
   RESPONSIVE: Mobile (max-width: 767px)
   FIX: Left-aligned dropdown positioning
------------------------------ */
@media (max-width: 767px) {
  .breadcrumb-nav {
    padding: 14px 0;
  }

  .breadcrumb-list {
    font-size: 13px;
  }

  .breadcrumb-list li:not(:last-child)::after {
    font-size: 15px;
    margin: 0 6px;
  }

  /* FIX: viewport-aware text truncation */
  .breadcrumb-list li[aria-current="page"] {
    max-width: max(180px, 45vw);
  }

  /* FIX: Left-aligned dropdown to prevent left-edge clipping */
  .breadcrumb-services-dropdown {
    left: 0;
    right: auto;
    min-width: 240px;
    max-width: calc(100vw - 32px);
    transform: translateY(-10px);
    font-size: 13px;
    max-height: min(50vh, 350px);
    padding-bottom: max(8px, env(safe-area-inset-bottom));
  }

  .breadcrumb-list li.breadcrumb-services:hover .breadcrumb-services-dropdown {
    transform: translateY(0);
  }

  .breadcrumb-services-dropdown a {
    padding: 14px 16px;
    font-size: 13px;
    min-height: 44px;
  }

  /* Flyout dropdown - left aligned */
  .breadcrumb-flyout-dropdown {
    left: 0;
    right: auto;
    min-width: 200px;
    max-width: calc(100vw - 32px);
    transform: translateY(-10px);
  }

  .breadcrumb-list li.breadcrumb-flyout:hover .breadcrumb-flyout-dropdown {
    transform: translateY(0);
  }

  /* Mobile: Disable flyout, use accordion */
  .breadcrumb-flyout-submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    min-width: auto;
    margin-left: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: #f8f9fa;
  }

  .breadcrumb-flyout-category.open .breadcrumb-flyout-submenu {
    max-height: 500px;
  }

  .breadcrumb-flyout-category-label {
    padding: 12px 16px;
  }

  .breadcrumb-flyout-category-label::after {
    transform: rotate(45deg);
  }

  .breadcrumb-flyout-category.open .breadcrumb-flyout-category-label::after {
    transform: rotate(-135deg);
  }

  .breadcrumb-flyout-submenu a {
    padding: 12px 16px 12px 32px;
    font-size: 13px;
  }
}

/* Mobile Landscape - Optimize for low viewport height */
@media (max-height: 500px) and (orientation: landscape) {
  .breadcrumb-services-dropdown,
  .breadcrumb-flyout-dropdown {
    max-height: 40vh;
  }
}

/* -----------------------------
   RESPONSIVE: Small Mobile (max-width: 480px)
------------------------------ */
@media (max-width: 480px) {
  .breadcrumb-nav {
    padding: 12px 0;
  }

  .breadcrumb-list {
    font-size: 12px;
  }

  .breadcrumb-list li:not(:last-child)::after {
    font-size: 14px;
    margin: 0 5px;
  }

  /* FIX: viewport-aware text truncation for small screens */
  .breadcrumb-list li[aria-current="page"] {
    max-width: max(150px, 40vw);
  }

  .breadcrumb-services-dropdown {
    min-width: 220px;
    max-width: 85vw;
    max-height: min(45vh, 300px);
  }

  .breadcrumb-services-dropdown a {
    padding: 12px 14px;
    font-size: 12px;
    min-height: 44px;
  }

  .breadcrumb-flyout-dropdown {
    min-width: 180px;
    max-width: 85vw;
  }
}

/* -----------------------------
   RESPONSIVE: 2K/QHD Displays (2560px - 3839px)
------------------------------ */
@media (min-width: 2560px) and (max-width: 3839px) {
  .breadcrumb-list {
    font-size: clamp(15px, 1.05vw, 20px);
  }

  .breadcrumb-list li:not(:last-child)::after {
    font-size: clamp(17px, 1.15vw, 22px);
  }

  .breadcrumb-services-dropdown {
    min-width: 360px;
  }

  .breadcrumb-services-dropdown a {
    font-size: clamp(15px, 1vw, 19px);
    padding: 12px 24px;
  }

  .breadcrumb-flyout-dropdown {
    min-width: 280px;
  }

  .breadcrumb-flyout-submenu {
    min-width: 320px;
  }

  .breadcrumb-flyout-category-label,
  .breadcrumb-flyout-submenu a {
    font-size: clamp(15px, 1vw, 19px);
  }
}

/* -----------------------------
   RESPONSIVE: 4K Displays (3840px - 5119px)
------------------------------ */
@media (min-width: 3840px) and (max-width: 5119px) {
  .breadcrumb-list {
    font-size: clamp(17px, 1.1vw, 24px);
  }

  .breadcrumb-list li:not(:last-child)::after {
    font-size: clamp(19px, 1.2vw, 26px);
  }

  .breadcrumb-services-dropdown {
    min-width: 420px;
  }

  .breadcrumb-services-dropdown a {
    font-size: clamp(16px, 1.05vw, 22px);
    padding: 14px 28px;
  }

  .breadcrumb-flyout-dropdown {
    min-width: 340px;
  }

  .breadcrumb-flyout-submenu {
    min-width: 380px;
  }

  .breadcrumb-flyout-category-label,
  .breadcrumb-flyout-submenu a {
    font-size: clamp(16px, 1.05vw, 22px);
    padding: 12px 20px;
  }
}

/* -----------------------------
   RESPONSIVE: 5K+ Displays (5120px+)
------------------------------ */
@media (min-width: 5120px) {
  .breadcrumb-list {
    font-size: clamp(19px, 1.15vw, 28px);
  }

  .breadcrumb-list li:not(:last-child)::after {
    font-size: clamp(21px, 1.25vw, 30px);
  }

  .breadcrumb-services-dropdown {
    min-width: 480px;
  }

  .breadcrumb-services-dropdown a {
    font-size: clamp(18px, 1.1vw, 26px);
    padding: 16px 32px;
  }

  .breadcrumb-flyout-dropdown {
    min-width: 400px;
  }

  .breadcrumb-flyout-submenu {
    min-width: 440px;
  }

  .breadcrumb-flyout-category-label,
  .breadcrumb-flyout-submenu a {
    font-size: clamp(18px, 1.1vw, 26px);
    padding: 14px 24px;
  }
}

/* -----------------------------
   ACCESSIBILITY
------------------------------ */

/* Focus States */
.breadcrumb-list a:focus,
.breadcrumb-flyout-label:focus,
.breadcrumb-services-dropdown a:focus,
.breadcrumb-flyout-submenu a:focus,
.breadcrumb-flyout-category-label:focus {
  outline: 2px solid var(--breadcrumb-link-color);
  outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .breadcrumb-nav,
  .breadcrumb-nav *,
  .breadcrumb-nav *::before,
  .breadcrumb-nav *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .breadcrumb-nav {
    border-bottom-width: 2px;
  }

  .breadcrumb-list a:focus,
  .breadcrumb-flyout-label:focus {
    outline-width: 3px;
  }
}

/* -----------------------------
   PRINT STYLES
------------------------------ */
@media print {
  .breadcrumb-nav {
    display: none;
  }
}