/* Public site header and navigation.
   Shared product tokens own colors and surfaces; selectors stay scoped so
   Bootstrap and page-level dropdowns are not affected. */

/* Skip to Content Link */
  .skip-link {
    position: absolute;
    top: 0;
    left: 0;
    transform: translateY(-120%);
    background: var(--product-action-bg);
    color: var(--product-on-action);
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    font-weight: 600;
    z-index: 100000;
    border-radius: 0 0 8px 0;
  }

  .skip-link:focus {
    transform: translateY(0);
  }

  /* Top Header */
  .public-site-header {
    background: linear-gradient(135deg, var(--product-action-bg), var(--product-action-hover));
    color: var(--product-on-action);
    padding: 1rem 0;
    box-shadow: var(--product-shadow);
  }

  .public-site-header .container {
    box-sizing: border-box;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
  }

  .public-site-header .branding {
    min-width: 0;
  }

  .public-site-header .branding .logo {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .public-site-header .branding .logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--product-on-action);
    text-decoration: none;
    transition: 0.2s ease;
  }

  .public-site-header .branding .logo:hover {
    opacity: 0.9;
    transform: scale(1.02);
  }

  .public-site-header .branding .logo:focus {
    outline: 2px solid var(--product-on-action);
    outline-offset: 4px;
    border-radius: 4px;
  }

  /* Language Switcher */
  .public-site-header .language-buttons {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.3rem;
    border: 1px solid color-mix(in srgb, var(--product-on-action) 28%, transparent);
    border-radius: 999px;
    background: color-mix(in srgb, var(--product-action-hover) 58%, transparent);
    box-shadow: inset 0 1px 0 color-mix(in srgb, var(--product-on-action) 14%, transparent);
    backdrop-filter: blur(10px);
  }

  .public-site-header .language-buttons .fa-globe {
    margin: 0 0.4rem 0 0.55rem;
    color: color-mix(in srgb, var(--product-on-action) 82%, transparent);
    font-size: 0.9rem;
  }

  .public-site-header .language-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.8rem;
    background: transparent;
    border: 1px solid transparent;
    color: var(--product-on-action);
    padding: 0.42rem 0.7rem;
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-decoration: none;
    transition: 0.2s ease;
  }

  .public-site-header .language-button:hover {
    background: color-mix(in srgb, var(--product-on-action) 14%, transparent);
    color: var(--product-on-action);
  }

  .public-site-header .language-button:focus {
    outline: 2px solid white;
    outline-offset: 2px;
  }

  .public-site-header .language-button.active {
    background: var(--product-on-action);
    color: var(--product-action-bg);
    border-color: color-mix(in srgb, var(--product-on-action) 90%, transparent);
    font-weight: 700;
    box-shadow: var(--product-shadow);
  }

  .public-site-header .language-button.active:hover {
    color: var(--product-action-bg);
  }

  /* Main Navigation */
  .public-main-nav {
    background: var(--product-surface);
    border-bottom: 1px solid var(--product-border);
    position: sticky;
    top: 0;
    z-index: 10000;
    box-shadow: var(--product-shadow);
  }

  .public-main-nav .nav-container {
    box-sizing: border-box;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 64px;
  }

  /* Mobile Menu Toggle */
  .public-main-nav .mobile-menu-toggle {
    display: none;
    background: var(--product-action-bg);
    color: var(--product-on-action);
    border: none;
    padding: 0.75rem;
    border-radius: var(--user-radius-main);
    cursor: pointer;
    font-size: 1.25rem;
    transition: 0.2s ease;
  }

  .public-main-nav .mobile-menu-toggle:hover {
    background: var(--product-action-hover);
  }

  .public-main-nav .mobile-menu-toggle:focus {
    outline: 2px solid var(--product-primary);
    outline-offset: 2px;
  }

  .public-main-nav .mobile-menu-toggle[aria-expanded="true"] .fa-bars {
    display: none;
  }

  .public-main-nav .mobile-menu-toggle[aria-expanded="false"] .fa-times {
    display: none;
  }

  /* Navigation List */
  .public-main-nav .nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .public-main-nav .nav-list li {
    margin: 0;
  }

  .public-main-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    color: var(--product-text);
    text-decoration: none;
    border-radius: var(--user-radius-main);
    font-weight: 500;
    transition: 0.2s ease;
    position: relative;
  }

  .public-main-nav .nav-link:hover {
    background: var(--product-surface-muted);
    color: var(--product-primary);
  }

  .public-main-nav .nav-link:focus {
    outline: 2px solid var(--product-primary);
    outline-offset: 2px;
  }

  .public-main-nav .nav-link i {
    font-size: 1rem;
  }

  .public-main-nav .mobile-nav-header,
  .public-main-nav .mobile-only {
    display: none;
  }

  .public-main-nav .mobile-nav-title {
    color: var(--product-primary);
    font-weight: 700;
  }

  .public-main-nav .theme-toggle-item {
    margin-left: auto;
  }

  html:not(.js) .public-main-nav .theme-toggle-item {
    display: none;
  }

  /* Active Link Indicator */
  .public-main-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 3px;
    background: var(--product-primary);
    border-radius: 3px 3px 0 0;
  }

  /* User Dropdown */
  .public-main-nav .user-dropdown {
    position: relative;
  }

  .public-main-nav .user-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background: var(--product-surface-muted);
    border: 1px solid var(--product-border);
    border-radius: var(--user-radius-main);
    cursor: pointer;
    transition: 0.2s ease;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    color: var(--product-text);
  }

  .public-main-nav .user-toggle:hover {
    border-color: var(--product-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--product-primary) 14%, transparent);
  }

  .public-main-nav .user-toggle:focus {
    outline: 2px solid var(--product-primary);
    outline-offset: 2px;
  }

  .public-main-nav .profile-picture {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--product-border);
  }

  .public-main-nav .user-toggle .fa-chevron-down {
    font-size: 0.75rem;
    transition: 0.2s ease;
  }

  .public-main-nav .user-dropdown[aria-expanded="true"] .fa-chevron-down {
    transform: rotate(180deg);
  }

  .public-main-nav .dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--product-surface);
    border: 1px solid var(--product-border);
    border-radius: var(--user-radius-main);
    box-shadow: var(--product-shadow);
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: 0.2s ease;
    z-index: 1000;
  }

  .public-main-nav .user-dropdown[aria-expanded="true"] .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    display: revert;
  }

  /* Desktop hover behavior */
  @media (min-width: 769px) {
    .public-main-nav .user-dropdown:hover .dropdown-menu,
    .public-main-nav .user-dropdown:focus-within .dropdown-menu {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }
  }

  .public-main-nav .dropdown-menu ul {
    list-style: none;
    margin: 0;
    padding: 0.5rem;
  }

  .public-main-nav .dropdown-menu li {
    margin: 0;
  }

  .public-main-nav .dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--product-text);
    text-decoration: none;
    border-radius: calc(var(--user-radius-main) - 4px);
    transition: 0.2s ease;
    font-weight: 500;
  }

  .public-main-nav .dropdown-menu a:hover {
    background: var(--product-surface-muted);
    color: var(--product-primary);
  }

  .public-main-nav .dropdown-menu a:focus {
    outline: 2px solid var(--product-primary);
    outline-offset: -2px;
  }

  /* Theme Toggle */
  .public-main-nav .theme-toggle {
    background: var(--product-surface-muted);
    border: 1px solid var(--product-border);
    color: var(--product-text);
    padding: 0.75rem;
    border-radius: 50%;
    cursor: pointer;
    transition: 0.2s ease;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
  }

  .public-main-nav .theme-toggle:hover {
    background: var(--product-action-bg);
    color: var(--product-on-action);
    transform: rotate(180deg);
  }

  @media (max-width: 768px) {
    .public-main-nav .theme-toggle:hover {
      transform: unset;
      transition: all 0.5s;
    }
  }

  .public-main-nav .theme-toggle:focus {
    outline: 2px solid var(--product-primary);
    outline-offset: 2px;
  }

  body.public-nav-open {
    overflow: hidden;
  }

  /* Admin Alert */
  .public-main-nav .admin-alert {
    background: var(--product-danger-soft);
    border: 1px solid var(--product-danger);
    color: var(--product-text);
    padding: 1rem 1.5rem;
    border-radius: var(--user-radius-main);
    margin: 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .public-main-nav .admin-alert i {
    color: var(--product-danger);
    font-size: 1.25rem;
  }

  @media (max-width: 1200px) {
    .public-site-header .container {
      flex-direction: column;
      gap: 1rem;
      text-align: center;
    }
  }

  /* Mobile Styles */
  @media (max-width: 768px) {
    .public-site-header .container {
      flex-direction: column;
      gap: 1rem;
      text-align: center;
    }

    .public-site-header .language-buttons {
      justify-content: center;
      width: fit-content;
    }

    .public-site-header .branding .logo {
      font-size: 1.35rem;
    }

    @media (max-width: 420px) {
      .public-site-header .branding .logo {
        font-size: 1.15rem;
      }
    }

    .public-main-nav .nav-container {
      flex-wrap: wrap;
      justify-content: flex-end;
      padding: 0.5rem 1rem;
    }

    html.js .public-main-nav .mobile-menu-toggle {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 2.75rem;
      min-height: 2.75rem;
    }

    html.js .public-main-nav .mobile-menu-toggle[aria-expanded="true"] {
      display: none;
    }

    .public-main-nav .nav-list {
      width: 100%;
      flex-direction: column;
      align-items: stretch;
      gap: 0.25rem;
      padding: 0.75rem;
    }

    html.js .public-main-nav .nav-list {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: var(--product-surface);
      padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
      gap: 0;
      transform: translateX(-100%);
      transition: 0.2s ease;
      overflow-y: auto;
      z-index: 9999;
    }

    html.js .public-main-nav .nav-list.active {
      transform: translateX(0);
    }

    html.js .public-main-nav .nav-list.active .mobile-nav-header {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 2rem;
      padding-bottom: 1rem;
      border-bottom: 1px solid var(--product-border);
    }

    .public-main-nav .mobile-close {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 2.75rem;
      min-height: 2.75rem;
      padding: 0;
      color: var(--product-on-action);
      background: var(--product-action-bg);
      border: 1px solid var(--product-action-bg);
      border-radius: var(--user-radius-main);
      cursor: pointer;
      font-size: 1.25rem;
    }

    .public-main-nav .nav-list li {
      width: 100%;
    }

    .public-main-nav .nav-link {
      width: 100%;
      padding: 1rem 1.5rem;
      font-size: 1.1rem;
      justify-content: flex-start;
    }

    .public-main-nav .nav-link.active {
      color: var(--product-primary-strong);
      background: var(--product-primary-soft);
      font-weight: 700;
    }

    .public-main-nav .nav-link.active::after {
      top: 50%;
      bottom: auto;
      left: 0.35rem;
      width: 3px;
      height: 55%;
      transform: translateY(-50%);
      border-radius: 0 3px 3px 0;
    }

    .public-main-nav .user-dropdown {
      width: 100%;
    }

    .public-main-nav .user-toggle {
      width: 100%;
      justify-content: space-between;
    }

    .public-main-nav .dropdown-menu {
      position: static;
      opacity: 1;
      visibility: visible;
      transform: none;
      margin-top: 0.5rem;
      box-shadow: none;
      border: none;
      background: var(--product-surface-muted);
    }

    .public-main-nav .theme-toggle-mobile {
      width: 100%;
      border-radius: var(--user-radius-main);
      padding: 1rem 1.5rem;
      justify-content: space-between;
    }

    .public-main-nav .theme-toggle-mobile::before {
      content: attr(aria-label);
      font-size: 1.1rem;
      font-weight: 500;
    }

    html.js .public-main-nav .nav-list.active .mobile-only {
      display: block;
    }
  }

  /* High Contrast Mode */
  @media (prefers-contrast: high) {
    .public-main-nav .nav-link:focus,
    .public-site-header .language-button:focus,
    .public-main-nav .theme-toggle:focus {
      outline-width: 3px;
    }
  }

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

  /* Focus Visible Polyfill */
  .public-site-header .js-focus-visible :focus:not(.focus-visible),
  .public-main-nav .js-focus-visible :focus:not(.focus-visible) {
    outline: none;
  }