/* =============================================================
   NAVBAR — shared, JS-injected navigation.
   Transparent over hero → solid navy on scroll; shrinks on scroll;
   full-screen slide-in drawer below lg; .is-active amber underline.
   SHARED FILE — coordinate before editing (see CLAUDE.md §12).
   Depends on: variables.css, components.css
   Scope: .navbar  ·  Behaviour classes: .is-scrolled / .is-open
   ============================================================= */

.navbar {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-navbar);
  background-color: var(--color-primary);
  border-block-end: 1px solid rgba(255, 255, 255, 0.08);
  transition:
    background-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}

/* Transparent over hero — only when the page opts in AND we're at
   the very top. Toggled off (solid) by .is-scrolled from navbar.js */
body[data-transparent-nav] .navbar:not(.is-scrolled) {
  background-color: transparent;
  border-block-end-color: transparent;
}

.navbar.is-scrolled {
  box-shadow: var(--shadow-md);
}

/* -------------------------------------------------------------
   Bar layout
   ------------------------------------------------------------- */
.navbar__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: var(--navbar-h);
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
  transition: height var(--dur-base) var(--ease-out);
}

.navbar.is-scrolled .navbar__bar {
  height: var(--navbar-h-scrolled);
}

/* -------------------------------------------------------------
   Brand / logo
   ------------------------------------------------------------- */
.navbar__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  /* The logo PNG carries ~18.6% transparent padding above and below the
     artwork, so its 200px/180px box is taller than the bar. Clip that
     invisible padding to the bar so it can't overlap the hero or catch
     clicks; the visible lockup always fits inside --navbar-h(-scrolled). */
  height: 100%;
  overflow: hidden;
}

.navbar__brand img,
.navbar__brand svg {
  height: 200px;
  width: auto;
}

.navbar.is-scrolled .navbar__brand img,
.navbar.is-scrolled .navbar__brand svg {
  height: 180px;
}

.navbar__brand-text {
  display: none;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-h4);
  color: var(--color-text-invert);
  line-height: 1;
  letter-spacing: var(--ls-tight);
}

@media (min-width: 480px) {
  .navbar__brand-text {
    display: inline-block;
  }
}

/* -------------------------------------------------------------
   NAV — desktop: inline row · mobile: slide-in drawer
   ------------------------------------------------------------- */
.navbar__nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.navbar__menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.navbar__link {
  position: relative;
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text-invert);
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease-out);
}

.navbar__link::after {
  content: "";
  position: absolute;
  inset-block-end: -2px;
  inset-inline-start: var(--space-3);
  inset-inline-end: var(--space-3);
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: inline-start;
  transition: transform var(--dur-base) var(--ease-out);
}

.navbar__link:hover {
  color: var(--color-accent);
}

.navbar__link:hover::after,
.navbar__item.is-active .navbar__link::after {
  transform: scaleX(1);
}

.navbar__item.is-active .navbar__link {
  color: var(--color-accent);
}

/* Right-hand actions (lang switch + CTA) */
.navbar__nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Language switch */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--fs-sm);
  font-weight: 700;
}

.lang-switch a {
  padding: var(--space-1) var(--space-2);
  color: var(--az-gray-400);
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast) var(--ease-out);
}

.lang-switch a:hover {
  color: var(--color-accent);
}

.lang-switch a[aria-current="true"] {
  color: var(--color-text-invert);
}

.lang-switch__sep {
  color: rgba(255, 255, 255, 0.25);
}

/* -------------------------------------------------------------
   Hamburger toggle (hidden on desktop)
   ------------------------------------------------------------- */
.navbar__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: none;
}

.navbar__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-invert);
  border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-out),
    opacity var(--dur-fast) var(--ease-out);
}

.navbar.is-open .navbar__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar.is-open .navbar__toggle-bar:nth-child(2) {
  opacity: 0;
}

.navbar.is-open .navbar__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* -------------------------------------------------------------
   MOBILE (< lg): drawer
   ------------------------------------------------------------- */
@media (max-width: 1023.98px) {
  .navbar__toggle {
    position: relative;
    z-index: calc(var(--z-modal) + 1);
  }
  .navbar__nav {
    position: fixed;
    inset-block: 0;
    inset-inline-end: 0;
    z-index: var(--z-modal);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: var(--space-6);
    width: min(88vw, 380px);
    padding: calc(var(--navbar-h) + var(--space-6)) var(--gutter) var(--space-10);
    background-color: var(--az-navy-900);
    overflow-y: auto;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--dur-base) var(--ease-out),
      visibility 0s linear var(--dur-base);
  }

  html[dir="rtl"] .navbar__nav {
    transform: translateX(-100%);
  }

  .navbar.is-open .navbar__nav {
    transform: translateX(0);
    visibility: visible;
    transition: transform var(--dur-base) var(--ease-out), visibility 0s;
    box-shadow: var(--shadow-xl);
  }

  .navbar__menu {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }

  .navbar__item {
    border-block-end: 1px solid rgba(255, 255, 255, 0.08);
  }

  .navbar__link {
    display: block;
    padding: var(--space-4) var(--space-2);
    font-size: var(--fs-lead);
  }

  .navbar__link::after {
    inset-block-end: auto;
    inset-inline: 0;
    inset-block: 0;
    width: 3px;
    height: auto;
    inset-inline-start: 0;
    inset-inline-end: auto;
    transform: scaleY(0);
    transform-origin: center;
  }

  .navbar__item.is-active .navbar__link::after,
  .navbar__link:hover::after {
    transform: scaleY(1);
  }

  .navbar__nav-actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-5);
    margin-block-start: var(--space-4);
  }

  .navbar__nav-actions .btn {
    width: 100%;
  }

  .lang-switch {
    justify-content: flex-start;
  }

  /* Backdrop behind the drawer */
  .navbar__backdrop {
    position: fixed;
    inset: 0;
    z-index: var(--z-overlay);
    background-color: rgba(10, 26, 47, 0.6);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur-base) var(--ease-out),
      visibility 0s linear var(--dur-base);
  }

  .navbar.is-open .navbar__backdrop {
    opacity: 1;
    visibility: visible;
    transition: opacity var(--dur-base) var(--ease-out);
  }
}

/* -------------------------------------------------------------
   DESKTOP (>= lg): no drawer, no hamburger, no backdrop
   ------------------------------------------------------------- */
@media (min-width: 1024px) {

  .navbar__toggle,
  .navbar__backdrop {
    display: none;
  }
}