/*
 * Site header / navbar.
 * Source: brief.json > design_system > components > navbar
 */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition:
    background-color var(--transition-base),
    border-color     var(--transition-base),
    backdrop-filter  var(--transition-base);
}

/* Sticky state — added by JS on scroll */
.site-header--sticky {
  background-color: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

/* ── Logo ─────────────────────────────────────────────── */

.site-header__logo {
  display: flex;
  flex-direction: column;
  gap: 1px;
  text-decoration: none;
  flex-shrink: 0;
}

.site-header__logo-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.05em;
  color: #f5f5f5;
  line-height: 1;
}

/* Accent dot on last letter — uses brand orange */
.site-header__logo-name::after {
  content: '.';
  color: var(--color-orange);
}

.site-header__logo img {
  display: block;
  height: 32px;
  width: auto;
}

.site-header__logo-sub {
  font-family: var(--font-body);
  font-size: 0.625rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  line-height: 1;
}

/* ── Primary nav ──────────────────────────────────────── */

.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.site-nav__list a {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #f5f5f5;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-base);
  text-decoration: none;
}

.site-nav__list a:hover,
.site-nav__list .current-menu-item > a,
.site-nav__list .current_page_item > a {
  color: var(--color-teal);
}

/* ── Dropdown ─────────────────────────────────────────── */

.site-nav__list .menu-item-has-children {
  position: relative;
}

/* Chevron toggle button injected by JS */
.site-nav__dropdown-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.2rem 0.25rem;
  color: #f5f5f5;
  line-height: 1;
  vertical-align: middle;
  transition: transform var(--transition-base), color var(--transition-base);
}

.site-nav__dropdown-toggle:hover {
  color: var(--color-teal);
}

.site-nav__dropdown-toggle[aria-expanded="true"] {
  transform: rotate(180deg);
  color: var(--color-teal);
}

.site-nav__list .sub-menu {
  display: none;
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  min-width: 180px;
  background-color: rgba(10, 10, 10, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0;
  list-style: none;
  z-index: 10;
}

.site-nav__list .menu-item-has-children.is-open > .sub-menu {
  display: block;
}

.site-nav__list .sub-menu a {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* ── CTA button ───────────────────────────────────────── */

.site-header__cta {
  flex-shrink: 0;
  margin-left: auto;
}

/* Nav CTA variant — outlined white, inverts on hover */
.btn--nav-cta {
  background-color: transparent;
  color: #f5f5f5;
  border: 1px solid #f5f5f5;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition:
    background-color var(--transition-base),
    color            var(--transition-base);
}

.btn--nav-cta:hover {
  background-color: #f5f5f5;
  color: var(--color-bg);
}

/* ── Mobile toggle ────────────────────────────────────── */

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: auto;
  flex-shrink: 0;
}

.site-header__toggle-bar {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: #f5f5f5;
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Open state */
.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(2) {
  opacity: 0;
}
.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ── Push page content below fixed header ─────────────── */

.site-main {
  padding-top: 64px;
}

/* ── WordPress admin bar offsets ──────────────────────── */
/* Admin bar is 32px on desktop, 46px on mobile (≤782px)  */

.admin-bar .site-header {
  top: 32px;
}

.admin-bar .site-main {
  padding-top: calc( 64px + 32px );
}

@media screen and (max-width: 782px) {
  .admin-bar .site-header {
    top: 46px;
  }

  .admin-bar .site-main {
    padding-top: calc( 64px + 46px );
  }

  .admin-bar .site-nav {
    top: calc( 64px + 46px );
  }
}

.admin-bar .site-nav {
  top: calc( 64px + 32px );
}

/* ── Responsive ───────────────────────────────────────── */

@media (max-width: 900px) {
  .site-header__toggle {
    display: flex;
  }

  .site-header__cta {
    display: none;
  }

  .site-nav {
    position: fixed;
    top: 64px; /* overridden below when admin bar present */
    left: 0;
    right: 0;
    background-color: rgba(10, 10, 10, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem var(--gutter) 2rem;
    display: none;
    justify-content: flex-start;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    width: 100%;
  }

  .site-nav__list li {
    width: 100%;
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav__list a {
    display: block;
    padding: 0.875rem 0;
    font-size: 1rem;
  }

  /* Sub-menu as inline accordion on mobile */
  .site-nav__list .sub-menu {
    position: static;
    border: none;
    border-radius: 0;
    background: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    padding: 0;
    min-width: unset;
    width: 100%;
  }

  .site-nav__list .sub-menu li {
    border-bottom: none;
    padding-left: 1rem;
  }

  .site-nav__list .sub-menu a {
    padding: 0.75rem 0;
    white-space: normal;
    color: var(--color-text-muted);
  }

  .site-nav__list .menu-item-has-children > a {
    flex: 1;
  }

  .site-nav__list .menu-item-has-children {
    flex-wrap: wrap;
    display: flex;
    align-items: center;
  }

  .site-nav__list .menu-item-has-children > .site-nav__dropdown-toggle {
    margin-left: auto;
    padding: 0.875rem 0.25rem;
  }

  .site-nav__list .menu-item-has-children > .sub-menu {
    flex-basis: 100%;
  }
}