/* ==========================================================
   SITE HEADER — "The Field"
   Solid charcoal bar; transparent overlay variant on the
   front page that turns solid once scrolled.
   ========================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--char);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

/* Overlay variant (front page): floats over the photo hero */
.site-header--overlay {
  position: fixed;
  left: 0;
  right: 0;
  background: transparent;
}
.site-header--overlay.is-scrolled {
  background: rgba(16, 18, 20, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}

.site-header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: var(--header-h);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
}

/* --- Brand ---
   Used in both header.php and footer.php. The header shows the
   black/white-swapping lockup (see below); the footer's background
   never changes, so it just renders the plain white logo — same
   .brand__logo-img base rules, no modifier classes needed there.
------------------------------------------------------------------ */
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: #fff;
}

/* --- Logo lockup ---
   On the header, two logo images (black + white) sit stacked in the
   same slot; CSS picks which one shows based on header state. No
   extra JS needed beyond the existing .is-scrolled toggle:
   - Solid header (every non-front-page template): white logo.
   - Overlay header, not yet scrolled (transparent, over the hero
     photo): black logo.
   - Overlay header, scrolled (turned solid): white logo.
   On the footer, there's just one plain <img> with no modifier
   class — it renders via the base rules below and ignores the
   black/white toggle entirely.
------------------------------------------------------------------ */
.brand__logo {
  position: relative;
  display: block;
  height: 40px;
}
.brand__logo-img {
  height: 40px;
  width: auto;
  display: block;
}
.brand__logo-img--white { display: none; }

.site-header:not(.site-header--overlay) .brand__logo-img--black,
.site-header--overlay.is-scrolled .brand__logo-img--black {
  display: none;
}
.site-header:not(.site-header--overlay) .brand__logo-img--white,
.site-header--overlay.is-scrolled .brand__logo-img--white {
  display: block;
}

@media (max-width: 480px) {
  .brand__logo, .brand__logo-img { height: 32px; }
}

/* --- Primary nav --- */
.site-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 2.4vw, 1.9rem);
  flex-wrap: wrap;
}
.nav-item { position: relative; }

.site-nav .nav-link,
.site-nav .sub-menu__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.82);
  position: relative;
  padding: 0.35rem 0;
  transition: color 0.2s;
}
.site-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 100%;
  background: var(--red-bright);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s var(--ease);
}
.site-nav .nav-link:hover,
.site-nav .nav-link:focus-visible { color: #fff; }
.site-nav .nav-link:hover::after,
.site-nav .nav-link:focus-visible::after,
.site-nav .nav-link.current-menu-item::after { transform: scaleX(1); }
.site-nav .nav-link.current-menu-item { color: #fff; }

.nav-caret {
  transition: transform 0.2s var(--ease);
  flex: none;
}
.nav-item--has-children.is-open > .nav-link .nav-caret,
.nav-item--has-children:hover > .nav-link .nav-caret,
.nav-item--has-children:focus-within > .nav-link .nav-caret {
  transform: rotate(180deg);
}

/* --- Desktop dropdown panel --- */
.site-nav .sub-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translate(-50%, 6px);
  min-width: 200px;
  padding: 0.5rem;
  margin-top: 0.6rem;
  background: var(--char-2);
  border: 1px solid var(--line-dk);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease), visibility 0.18s;
  z-index: 10;
}
/* Invisible hover bridge — the margin-top above leaves a dead strip
   between the nav-link and the panel with nothing hoverable in it, so
   crossing it drops :hover on .nav-item and the panel starts closing
   (pointer-events flips to none) before the cursor arrives. This pseudo
   sits exactly in that strip and stays hoverable regardless of the
   panel's own closed-state visibility/pointer-events. */
.site-nav .sub-menu::before {
  content: "";
  position: absolute;
  top: -0.6rem;
  left: 0;
  right: 0;
  height: 0.6rem;
  visibility: visible;
  pointer-events: auto;
}
.nav-item--has-children:hover > .sub-menu,
.nav-item--has-children:focus-within > .sub-menu,
.nav-item--has-children.is-open > .sub-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.site-nav .sub-menu__item { display: block; }
.site-nav .sub-menu__link {
  display: block;
  padding: 0.65rem 0.9rem;
  white-space: nowrap;
  color: var(--t-mute);
}
.site-nav .sub-menu__link:hover,
.site-nav .sub-menu__link:focus-visible {
  color: #fff;
  background: var(--char-3);
}
.site-nav .sub-menu__link.current-menu-item { color: var(--amber); }

/* --- Header CTA + mobile toggle --- */
.header-cta {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
  padding: 0 11px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: #fff;
  transition: transform 0.25s var(--ease), opacity 0.25s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Mobile nav drawer --- */
.site-nav--mobile {
  display: none;
  background: var(--char);
  border-top: 1px solid var(--line-dk);
  padding: 0.6rem var(--gutter) 1.2rem;
}
.site-nav--mobile.is-open { display: block; }
.site-nav--mobile .site-nav__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  align-items: stretch;
}
.site-nav--mobile .nav-link {
  justify-content: space-between;
  width: 100%;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line-dk);
}
.site-nav--mobile .nav-item:last-child > .nav-link { border-bottom: none; }
.site-nav--mobile .nav-link.current-menu-item { color: var(--amber); }
.site-nav--mobile .nav-link::after { display: none; } /* no underline slide on mobile rows */

/* Accordion sub-menu — no hover on touch, JS toggles .is-open */
.site-nav--mobile .sub-menu {
  position: static;
  transform: none;
  margin: 0;
  padding: 0;
  border: none;
  background: var(--char-3);
  box-shadow: none;
  max-height: 0;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  overflow: hidden;
  transition: max-height 0.25s var(--ease);
}
.site-nav--mobile .nav-item--has-children.is-open .sub-menu {
  max-height: 240px;
}
.site-nav--mobile .sub-menu__link {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line-dk);
  color: rgba(255, 255, 255, 0.75);
}
.site-nav--mobile .sub-menu__item:last-child .sub-menu__link { border-bottom: none; }
.site-nav--mobile .sub-menu__link.current-menu-item { color: var(--amber); }

/* --- Responsive --- */
@media (max-width: 920px) {
  .site-header__inner { grid-template-columns: 1fr auto; }
  .site-nav { display: none; }
  .nav-toggle { display: flex; }
}
@media (max-width: 480px) {
  .brand__name span { display: none; }
}