/* All rules are scoped to navigation and the home category directory. */
.unified-header { position: relative; z-index: 50; }
.unified-header .header-main { min-height: 90px; }
.unified-header .pkf-menu-toggle { display: none; }
.pkf-nav ul { list-style: none; margin: 0; padding: 0; }
.pkf-nav .pkf-primary { display: flex; align-items: stretch; gap: 14px; }
.pkf-primary > li { display: flex; align-items: stretch; position: relative; }
.pkf-primary > li > a, .pkf-primary summary {
  display: flex; align-items: center; min-height: 48px; padding: 10px 8px;
  color: #eaf4ff; font-size: 14px; font-weight: 600; text-decoration: none; cursor: pointer;
}
.pkf-primary summary { list-style: none; gap: 10px; }
.pkf-primary summary::-webkit-details-marker { display: none; }
.pkf-primary details { display: block; }
.pkf-primary details > summary::after {
  content: ""; width: 7px; height: 7px; border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor; transform: rotate(45deg); margin: -4px 3px 0;
}
.pkf-primary details[open] > summary::after { transform: rotate(225deg); margin-top: 4px; }
.pkf-primary li.pkf-parent > a, .pkf-primary li.pkf-parent > details > summary { color: #a9d1ff; }
.pkf-primary > li > a:hover, .pkf-primary summary:hover { background: #143d57; color: #fff; }
.pkf-primary a[aria-current="page"] { text-decoration: underline; text-underline-offset: 6px; }
.pkf-panel {
  position: absolute; top: 100%; left: 0; width: 310px; max-width: calc(100vw - 32px);
  max-height: min(480px, 65vh); overflow-y: auto; padding: 12px;
  background: #fff; color: #17354b; box-shadow: 0 12px 28px rgb(0 26 44 / 18%);
}
.pkf-panel a {
  display: flex; align-items: center; min-height: 44px; padding: 10px 12px;
  font-size: 14px; line-height: 1.4; color: #17354b; text-decoration: none;
}
.pkf-panel a:hover, .pkf-panel a[aria-current="page"] { background: #eaf3fc; color: #143e68; }
.pkf-panel.pkf-catalog-panel { width: 680px; }
.pkf-catalog-panel ul { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pkf-nav a:focus-visible, .pkf-nav summary:focus-visible, .pkf-menu-toggle:focus-visible,
.pkf-category-choice summary:focus-visible, .pkf-category-choice a:focus-visible, .pkf-home-categories a:focus-visible {
  outline: 3px solid #5f9ddd; outline-offset: -3px;
}
.pkf-nav .pkf-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.pkf-category-choice { margin: 20px 0; border: 1px solid #bfd2e1; background: #f4f8fc; max-width: 760px; }
.pkf-category-choice summary { min-height: 48px; padding: 12px 16px; cursor: pointer; color: #17354b; font-weight: 600; }
.pkf-category-choice nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 6px 10px 12px; gap: 4px; }
.pkf-category-choice a { min-height: 44px; padding: 10px; color: #234d70; text-decoration: none; }
.pkf-category-choice a:hover, .pkf-category-choice a[aria-current] { background: #dfedfa; text-decoration: underline; }
.pkf-home-categories { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 24px; }
.pkf-home-categories a { display: flex; align-items: center; min-height: 56px; padding: 12px 4px; border-bottom: 1px solid #d2e0eb; color: #17354b; font-size: 17px; font-weight: 600; text-decoration: none; }
.pkf-home-categories a:hover { color: #245e99; background: #f0f6fc; }
.pkf-home-weight { display: inline-flex; align-items: center; min-height: 48px; margin-top: 20px; padding: 10px 16px; background: #e4f0fc; color: #184873; font-weight: 600; text-underline-offset: 4px; }
.technical-subnav.pkf-technical-nav { display: flex; flex-wrap: wrap; gap: 6px; }
.pkf-technical-nav a { min-height: 44px; display: inline-flex; align-items: center; }
@media (max-width: 1050px) {
  .unified-header .header-main { flex-wrap: wrap; gap: 12px; padding-top: 14px; padding-bottom: 14px; min-height: 96px; }
  .unified-header .header-note { display: none; }
  .unified-header .header-contact { margin-left: auto; }
  .unified-header .pkf-menu-toggle { display: none; align-items: center; justify-content: center; min-height: 44px; padding: 8px 12px; border: 1px solid #51738b; background: #10354e; color: #fff; font: inherit; cursor: pointer; }
  .unified-header:not(:has(.pkf-nojs)) .pkf-menu-toggle { display: flex; }
  .unified-header:not(:has(.pkf-nojs)):not(.pkf-menu-open) .pkf-nav { display: none; }
  .pkf-nav .pkf-primary { display: block; padding: 8px 0 14px; }
  .pkf-primary > li { display: grid; grid-template-columns: 1fr 52px; border-bottom: 1px solid #27465c; }
  .pkf-primary > li > a { padding: 10px 12px; }
  .pkf-primary > li > details { display: contents; }
  .pkf-primary > li > details > summary { grid-column: 2; grid-row: 1; justify-content: center; padding: 10px; }
  .pkf-primary > li.pkf-disclosure-only > details > summary { grid-column: 1 / -1; justify-content: space-between; padding: 10px 12px; }
  .pkf-panel, .pkf-panel.pkf-catalog-panel { position: static; grid-column: 1 / -1; width: auto; max-width: none; max-height: none; overflow: visible; box-shadow: none; margin-bottom: 8px; padding: 6px; }
  .pkf-catalog-panel ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .unified-header.pkf-nav-ready.pkf-menu-open .pkf-nav { max-height: 70vh; overflow-y: auto; }
}
@media (max-width: 600px) {
  .unified-header .header-main { display: grid; grid-template-columns: 1fr auto; gap: 10px 12px; }
  .unified-header .brand { grid-column: 1; min-width: 0; }
  .unified-header .brand strong { font-size: 20px; }
  .unified-header .brand em { font-size: 9px; }
  .unified-header .header-contact { display: flex; flex-direction: column; grid-row: 2; grid-column: 1; margin: 0; align-items: flex-start; text-align: left; }
  .unified-header .header-contact > a { font-size: 15px; }
  .unified-header .request-link { grid-column: 2; grid-row: 1; margin: 0; padding: 10px; font-size: 12px; min-height: 44px; }
  .unified-header .request-link::before { content: none; }
  .unified-header .pkf-menu-toggle { grid-column: 2; grid-row: 2; }
  .pkf-primary > li > a, .pkf-primary summary, .pkf-panel a { font-size: 16px; }
  .pkf-catalog-panel ul { grid-template-columns: 1fr; }
  .pkf-category-choice nav { grid-template-columns: 1fr; }
  .pkf-home-categories { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
  .pkf-home-categories a { font-size: 16px; }
}
@media print {
  .unified-header, .pkf-category-choice, .pkf-technical-nav { display: none !important; }
}