/* ============================================================
   GMC Navigation — block styles
   Ported from: apps/wordpress theme refactor/components/05-navigation.html
   ============================================================ */

.site-header {
  background: rgba(12, 12, 12, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gmc-border, rgba(255,255,255,.1));
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
}

/* Non-sticky variant (sticky attribute off) */
.site-header--static { position: static; }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl, 32px);
  height: var(--gmc-header-h, 64px);
  padding-inline: var(--space-xl, 32px);
  max-width: 1280px;
  margin-inline: auto;
}

/* ─── Logo ────────────────────────────────────────────────── */
.site-header__logo {
  font-family: var(--font-display, sans-serif);
  font-size: var(--text-lg, 16px);
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gmc-text, #fff);
  display: flex;
  align-items: center;
  gap: var(--space-sm, 12px);
  text-decoration: none;
  flex-shrink: 0;
}

.site-header__logo-mark {
  width: 28px;
  height: 28px;
  background: var(--gmc-text, #fff);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.site-header__logo-mark-inner {
  width: 14px;
  height: 14px;
  background: var(--gmc-bg, #0C0C0C);
}

/* Custom logo image — scales linearly with the header height setting
   (--gmc-header-h, 48–96px). 16px keeps ~8px breathing room top/bottom.
   No fixed max-height so it tracks the setting across the full range. */
.site-header__logo-img {
  height: calc(var(--gmc-header-h, 64px) - 16px);
  width: auto;
  max-width: 200px;
  display: block;
  flex-shrink: 0;
}

/* ─── Desktop nav ─────────────────────────────────────────── */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__item { position: relative; }

.site-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-2xs, 4px);
  padding: var(--space-sm, 12px) var(--space-md, 16px);
  font-family: var(--font-code, monospace);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gmc-text-dim, rgba(255,255,255,.6));
  text-decoration: none;
  transition: color var(--dur-fast, 100ms) var(--ease-standard, ease);
}

.site-nav__link:hover  { color: var(--gmc-text, #fff); }
.site-nav__link--active { color: var(--cat-primary, var(--gmc-text, #fff)); }

.site-nav__dot {
  width: 6px;
  height: 6px;
  background: var(--cat-primary, var(--gmc-text-muted, #9A9A9A));
  flex-shrink: 0;
}

/* ─── Dropdown submenu (items with children) ─────────────── */
.site-nav__caret {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  margin-left: var(--space-2xs, 4px);
  flex-shrink: 0;
}

.site-nav__sub {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  margin: 0;
  padding: var(--space-xs, 8px) 0;
  list-style: none;
  background: var(--gmc-elevated, #141414);
  border: 1px solid var(--gmc-border, rgba(255,255,255,.1));
  z-index: 110;
  display: none;
  flex-direction: column;
}

.site-nav__item--has-children:hover .site-nav__sub,
.site-nav__item--has-children:focus-within .site-nav__sub {
  display: flex;
}

.site-nav__sublink {
  display: flex;
  align-items: center;
  gap: var(--space-xs, 8px);
  padding: var(--space-xs, 8px) var(--space-md, 16px);
  font-family: var(--font-code, monospace);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gmc-text-dim, rgba(255,255,255,.6));
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur-fast, 100ms) var(--ease-standard, ease),
              background var(--dur-fast, 100ms) var(--ease-standard, ease);
}

.site-nav__sublink:hover {
  color: var(--gmc-text, #fff);
  background: var(--gmc-surface, #1A1A1A);
}

/* ─── Actions (search + hamburger) ───────────────────────── */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 12px);
  flex-shrink: 0;
}

.site-header__search {
  display: flex;
  align-items: center;
  gap: var(--space-xs, 8px);
  padding: var(--space-xs, 8px) var(--space-sm, 12px);
  background: var(--gmc-elevated, #141414);
  border: 1px solid var(--gmc-border, rgba(255,255,255,.1));
  font-family: var(--font-code, monospace);
  font-size: var(--text-xs, 10px);
  color: var(--gmc-text-muted, #9A9A9A);
  letter-spacing: 0.06em;
  cursor: pointer;
  text-decoration: none;
  transition: border-color var(--dur-fast, 100ms) var(--ease-standard, ease);
}

.site-header__search:hover,
.site-header__search[aria-expanded="true"] { border-color: var(--gmc-border-strong, rgba(255,255,255,.2)); }

/* ─── Search form (expandable) ─────────────────────────────── */
.site-header__search-wrap {
  position: relative;
}

.site-header__search-form[hidden] { display: none; }

.site-header__search-form {
  position: absolute;
  top: calc(100% + var(--space-xs, 8px));
  right: 0;
  display: flex;
  align-items: center;
  width: 280px;
  background: var(--gmc-elevated, #141414);
  border: 1px solid var(--gmc-border-strong, rgba(255,255,255,.2));
  overflow: hidden;
  z-index: 200;
  animation: gmc-search-in var(--dur-normal, 200ms) var(--ease-standard, ease);
}

@keyframes gmc-search-in {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.site-header__search-input {
  flex: 1;
  min-width: 0;
  padding: var(--space-xs, 8px) var(--space-sm, 12px);
  background: transparent;
  border: none;
  outline: none;
  color: var(--gmc-text, #fff);
  font-family: var(--font-code, monospace);
  font-size: var(--text-xs, 10px);
  letter-spacing: 0.06em;
}

.site-header__search-input::placeholder {
  color: var(--gmc-text-muted, #9A9A9A);
}

/* Remove browser's native search cancel/clear button */
.site-header__search-input::-webkit-search-cancel-button,
.site-header__search-input::-webkit-search-decoration { display: none; }

.site-header__search-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  border-left: 1px solid var(--gmc-border, rgba(255,255,255,.1));
  color: var(--gmc-text-muted, #9A9A9A);
  cursor: pointer;
  flex-shrink: 0;
  transition: color var(--dur-fast, 100ms) var(--ease-standard, ease);
}

.site-header__search-submit:hover { color: var(--gmc-text, #fff); }

@media (max-width: 1023px) {
  .site-header__search-form {
    position: fixed;
    top: var(--gmc-header-h, 64px); /* header height */
    left: 0;
    right: 0;
    width: 100%;
    border-left: none;
    border-right: none;
  }
  .site-header__search-input {
    font-size: var(--text-md, 14px);
    padding: var(--space-sm, 12px) var(--space-md, 16px);
  }
  .site-header__search-submit {
    width: 48px;
    height: 48px;
  }
}

.search-icon {
  width: 14px;
  height: 14px;
  border: 1.5px solid currentColor;
  display: inline-block;
  position: relative;
  flex-shrink: 0;
}

.search-icon::after {
  content: '';
  position: absolute;
  bottom: -4px;
  right: -4px;
  width: 5px;
  height: 1.5px;
  background: currentColor;
  transform: rotate(45deg);
}

/* ─── Mobile hamburger ────────────────────────────────────── */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--gmc-border, rgba(255,255,255,.1));
  cursor: pointer;
  padding: var(--space-xs, 8px);
}

.mobile-menu-btn span {
  display: block;
  height: 1.5px;
  background: var(--gmc-text-dim, rgba(255,255,255,.6));
  transition: all var(--dur-normal, 200ms) var(--ease-standard, ease);
}

.mobile-menu-btn.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.mobile-menu-btn.is-open span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ─── Mobile drawer ───────────────────────────────────────── */
.mobile-nav {
  background: var(--gmc-elevated, #141414);
  border-bottom: 1px solid var(--gmc-border, rgba(255,255,255,.1));
}

.mobile-nav[hidden] { display: none; }

/* Nested sub-items in the drawer: indented, always visible */
.mobile-nav__sublist {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--space-lg, 24px);
}

.mobile-nav__link--sub {
  padding-block: var(--space-sm, 12px);
  font-size: var(--text-xs, 12px);
}

.mobile-nav__inner {
  padding: var(--space-lg, 24px) var(--space-xl, 32px);
  max-width: 1280px;
  margin-inline: auto;
}

.mobile-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 12px);
  padding: var(--space-md, 16px) var(--space-sm, 12px);
  border-left: 2px solid transparent;
  font-family: var(--font-code, monospace);
  font-size: var(--text-sm, 12px);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gmc-text-dim, rgba(255,255,255,.6));
  text-decoration: none;
  transition: all var(--dur-fast, 100ms) var(--ease-standard, ease);
}

.mobile-nav__link:hover,
.mobile-nav__link--active {
  border-left-color: var(--cat-primary, var(--gmc-border-strong, rgba(255,255,255,.2)));
  color: var(--gmc-text, #fff);
  padding-left: var(--space-md, 16px);
}

.mobile-nav__dot {
  width: 8px;
  height: 8px;
  background: var(--cat-primary, var(--gmc-text-muted, #9A9A9A));
  flex-shrink: 0;
}

/* ─── Responsive ──────────────────────────────────────────── */
@media (max-width: 1023px) {
  .site-header__desktop-nav { display: none; }
  .mobile-menu-btn { display: flex; }
  .site-header__search .site-header__search-label { display: none; }
  .site-header__inner {
    padding-inline: var(--space-md, 16px);
    gap: var(--space-md, 16px);
  }
}

/* ─── Nav CTA (Join GMC) ─────────────────────────────────── */
.site-header__cta {
  margin-inline-start: var(--space-md, 16px);
  flex-shrink: 0;
}

.mobile-nav__cta {
  display: block;
  margin: var(--space-md, 16px);
  text-align: center;
}

@media (max-width: 1279px) {
  .site-header__cta { display: none; }
}

/* ─── Reduced motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .mobile-menu-btn span,
  .site-nav__link,
  .mobile-nav__link { transition: none; }
}

/* ─── Breadcrumbs ─────────────────────────────────────────────────────────── */
/* Ported from: apps/wordpress theme refactor/components/05-navigation.html   */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-xs, 8px);
  padding-block: var(--space-md, 16px);
  flex-wrap: wrap;
}

.breadcrumbs__item {
  font-family: var(--font-code, monospace);
  font-size: var(--text-xs, 10px);
  letter-spacing: 0.06em;
}

.breadcrumbs__link {
  color: var(--gmc-text-muted, #9A9A9A);
  text-decoration: none;
  transition: color var(--dur-fast, 100ms) var(--ease-standard, ease);
}

.breadcrumbs__link:hover { color: var(--gmc-text-dim, rgba(255,255,255,.6)); }

.breadcrumbs__current {
  color: var(--cat-primary, var(--gmc-text, #fff));
}

.breadcrumbs__sep {
  color: var(--gmc-text-muted, #9A9A9A);
  font-size: var(--text-xs, 10px);
  font-family: var(--font-code, monospace);
}