/* Site header — rendered by js/components/site-header.js */
[data-component="site-header"] {
  min-height: calc(var(--topbar-h) + var(--header-h));
}

/* Utility top bar */
.topbar {
  background: var(--ink-900);
  color: var(--color-text-inverse-muted);
  font-size: var(--fs-xs);
}
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--topbar-h);
}
.topbar__group { display: flex; align-items: center; gap: var(--space-5); }
.topbar a { display: inline-flex; align-items: center; gap: 0.45em; transition: color var(--dur); }
.topbar a:hover { color: var(--white); }
.topbar svg { width: 14px; height: 14px; color: var(--red-500); }
.topbar__duns { letter-spacing: 0.04em; }
@media (max-width: 860px) {
  .topbar__duns, .topbar__email { display: none; }
}
@media (max-width: 520px) {
  .topbar__group--right { display: none; }
}

/* Main bar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled { box-shadow: var(--shadow); }

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  height: var(--header-h);
}

.brand { display: flex; align-items: center; flex: none; }
.brand img { height: 46px; width: auto; }
.brand__since {
  margin-left: var(--space-3);
  padding-left: var(--space-3);
  border-left: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
@media (max-width: 1440px) { .brand__since { display: none; } }

/* Desktop navigation */
.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: 0.25rem; list-style: none; padding: 0; }
.nav__item { position: relative; }
.nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  padding: 0.6rem 0.6rem;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  white-space: nowrap;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-800);
  border-radius: var(--radius-sm);
  transition: color var(--dur);
}
.nav__link svg { width: 12px; height: 12px; transition: transform var(--dur) var(--ease); }
.nav__link:hover,
.nav__item:focus-within > .nav__link { color: var(--color-accent); }
.nav__link[aria-current="page"],
.nav__item.is-active > .nav__link { color: var(--color-accent); }
.nav__link[aria-current="page"]::after,
.nav__item.is-active > .nav__link::after {
  content: "";
  position: absolute;
  left: 0.7rem;
  right: 0.7rem;
  bottom: -2px;
  height: 3px;
  background: var(--color-accent);
  transform: skewX(var(--slant));
}

.nav__dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 270px;
  padding: var(--space-2);
  list-style: none;
  background: var(--white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
}
.nav__dropdown::before { /* hover bridge */
  content: "";
  position: absolute;
  inset: -14px 0 auto;
  height: 14px;
}
.nav__item:hover > .nav__dropdown,
.nav__item:focus-within > .nav__dropdown,
.nav__item.is-open > .nav__dropdown { opacity: 1; visibility: visible; transform: none; }
.nav__item:hover > .nav__link svg { transform: rotate(180deg); }

.nav__dropdown a {
  display: block;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--ink-700);
  transition: background var(--dur), color var(--dur);
}
.nav__dropdown a:hover,
.nav__dropdown a[aria-current="page"] { background: var(--red-50); color: var(--color-accent); }
.nav__dropdown small { display: block; color: var(--color-text-muted); font-size: var(--fs-xs); font-weight: 400; }

.site-header__cta { flex: none; }

/* Mobile toggle */
.nav-toggle {
  display: none;
  margin-left: auto;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink-900);
  transition: transform var(--dur) var(--ease), background var(--dur);
}
.nav-toggle__bars { position: relative; }
.nav-toggle__bars::before,
.nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bars::before { top: -7px; }
.nav-toggle__bars::after { top: 7px; }
.nav-open .nav-toggle__bars { background: transparent; }
.nav-open .nav-toggle__bars::before { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle__bars::after { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1240px) {
  .nav-toggle { display: inline-flex; }
  .site-header .site-header__cta { display: none; }
  .nav {
    position: fixed;
    inset: calc(var(--header-h)) 0 0 0;
    overflow-y: auto;
    padding: var(--space-4) var(--gutter) var(--space-8);
    background: var(--white);
    border-top: 1px solid var(--color-border);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
  }
  .nav-open .nav { opacity: 1; visibility: visible; transform: none; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__item { border-bottom: 1px solid var(--color-border); }
  .nav__link { width: 100%; justify-content: space-between; padding: 1rem 0; font-size: 1.25rem; }
  .nav__link[aria-current="page"]::after,
  .nav__item.is-active > .nav__link::after { display: none; }
  .nav__dropdown {
    position: static;
    display: none;
    min-width: 0;
    padding: 0 0 var(--space-3);
    border: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .nav__dropdown::before { display: none; }
  .nav__item.is-open > .nav__dropdown { display: block; }
  .nav__item:hover > .nav__link svg { transform: none; }
  .nav__item.is-open > .nav__link svg { transform: rotate(180deg); }
  .nav .nav__mobile-cta { display: flex; margin-top: var(--space-5); }
  body.nav-open { overflow: hidden; }
}
@media (min-width: 1241px) {
  .nav .nav__mobile-cta { display: none; }
}