/* ==========================================================================
   Header — Sticky Navigation + Mobile Menu for Dcodz Theme
   ========================================================================== */

/* -----------------------------------------------------------------------
   Site Header
   ----------------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-header);
  block-size: var(--header-height);
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-block-end: 1px solid rgba(0, 0, 0, 0.06);
  transition:
    block-size var(--transition-base),
    background-color var(--transition-base),
    backdrop-filter var(--transition-base),
    box-shadow var(--transition-base);
}

/* Scrolled state — shrink and strengthen blur */
.site-header.header--scrolled {
  block-size: var(--header-height-scrolled);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-md);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  block-size: 100%;
  max-inline-size: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* -----------------------------------------------------------------------
   Logo
   ----------------------------------------------------------------------- */
.site-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  z-index: calc(var(--z-header) + 1);
}

.site-logo__image {
  block-size: 56px;
  inline-size: auto;
  object-fit: contain;
  transition: block-size var(--transition-base);
}

.header--scrolled .site-logo__image {
  block-size: 44px;
}

.site-logo__text {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-blue);
  margin-inline-start: var(--space-2);
  line-height: 1;
}

/* -----------------------------------------------------------------------
   Desktop Navigation
   ----------------------------------------------------------------------- */
.site-nav {
  display: none;
  align-items: center;
  gap: var(--space-1);
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-dark);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
}

.site-nav__link:hover {
  color: var(--color-blue);
  background-color: var(--color-blue-50);
}

.site-nav__link--active {
  color: var(--color-blue);
}

/* Hover underline animation */
.site-nav__link::after {
  content: '';
  position: absolute;
  inset-inline-start: var(--space-3);
  inset-inline-end: var(--space-3);
  inset-block-end: 0;
  block-size: 2px;
  background-color: var(--color-blue);
  border-radius: var(--radius-full);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-base) var(--ease-out-expo);
}

.site-nav__link:hover::after,
.site-nav__link--active::after {
  transform: scaleX(1);
}

/* Dropdown */
.site-nav__dropdown {
  position: relative;
}

.site-nav__dropdown-menu {
  position: absolute;
  inset-block-start: 100%;
  inset-inline-start: 0;
  min-inline-size: 220px;
  padding: var(--space-2);
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(0, 0, 0, 0.06);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition:
    opacity var(--transition-fast),
    visibility var(--transition-fast),
    transform var(--transition-fast);
  z-index: var(--z-dropdown);
}

.site-nav__dropdown:hover .site-nav__dropdown-menu,
.site-nav__dropdown:focus-within .site-nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-nav__dropdown-link {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-dark);
  border-radius: var(--radius-md);
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
}

.site-nav__dropdown-link:hover {
  color: var(--color-blue);
  background-color: var(--color-blue-50);
}

/* -----------------------------------------------------------------------
   Header Actions (CTA + Language Switcher)
   ----------------------------------------------------------------------- */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-cta {
  display: none;
}

/* Site header brand */
.site-header__brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  z-index: calc(var(--z-header) + 1);
}

/* Language Switcher */
.lang-switcher {
  position: relative;
  display: flex;
  align-items: center;
  background-color: var(--color-light);
  border-radius: var(--radius-full);
  padding: var(--space-1);
  gap: 0;
}

.lang-switcher__toggle {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-dark-lighter);
  border-radius: var(--radius-full);
  border: none;
  background: var(--color-white);
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  line-height: var(--leading-snug);
}

.lang-switcher__dropdown {
  position: absolute;
  inset-block-start: 100%;
  inset-inline-end: 0;
  margin-block-start: var(--space-2);
  padding: var(--space-2);
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.lang-switcher__toggle[aria-expanded="true"] + .lang-switcher__dropdown {
  opacity: 1;
  visibility: visible;
}

.lang-switcher__dropdown li a {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-dark);
  text-decoration: none;
  border-radius: var(--radius-sm);
}

.lang-switcher__dropdown li a:hover {
  background-color: var(--color-blue-50);
  color: var(--color-blue);
}

.lang-switcher__btn {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-dark-lighter);
  border-radius: var(--radius-full);
  border: none;
  background: none;
  cursor: pointer;
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
  line-height: var(--leading-snug);
}

.lang-switcher__btn:hover {
  color: var(--color-dark);
}

.lang-switcher__btn--active {
  background-color: var(--color-white);
  color: var(--color-blue);
  box-shadow: var(--shadow-xs);
}

/* -----------------------------------------------------------------------
   Mobile Hamburger Menu
   ----------------------------------------------------------------------- */
.hamburger,
.site-header__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  inline-size: 40px;
  block-size: 40px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  z-index: calc(var(--z-header) + 1);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.hamburger:hover,
.site-header__hamburger:hover {
  background-color: var(--color-light);
}

.hamburger__line,
.hamburger-line {
  display: block;
  inline-size: 22px;
  block-size: 2px;
  background-color: var(--color-dark);
  border-radius: var(--radius-full);
  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
}

.hamburger__line + .hamburger__line,
.hamburger-line + .hamburger-line {
  margin-block-start: 5px;
}

/* Hamburger open state */
.hamburger--active .hamburger__line:nth-child(1),
.hamburger--active .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger--active .hamburger__line:nth-child(2),
.hamburger--active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger--active .hamburger__line:nth-child(3),
.hamburger--active .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* -----------------------------------------------------------------------
   Mobile Navigation Panel
   ----------------------------------------------------------------------- */
.mobile-nav,
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-header);
  background-color: var(--color-white);
  padding-block-start: calc(var(--header-height) + var(--space-4));
  padding-inline: var(--container-padding);
  padding-block-end: var(--space-8);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-slow) var(--ease-out-expo);
}

.mobile-nav--open,
.mobile-menu[aria-hidden="false"] {
  transform: translateX(0);
}

.mobile-nav__link {
  display: block;
  padding: var(--space-4) 0;
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  color: var(--color-dark);
  text-decoration: none;
  border-block-end: 1px solid var(--color-light);
  transition: color var(--transition-fast);
}

.mobile-nav__link:hover,
.mobile-nav__link--active {
  color: var(--color-blue);
}

.mobile-nav__cta {
  margin-block-start: var(--space-6);
}

.mobile-nav__cta .btn {
  inline-size: 100%;
  justify-content: center;
}

/* Mobile nav language switcher */
.mobile-nav__lang {
  margin-block-start: var(--space-6);
  display: flex;
  justify-content: center;
}

/* Overlay behind mobile nav */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: calc(var(--z-header) - 1);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.mobile-nav-overlay--visible {
  opacity: 1;
  visibility: visible;
}

/* Body lock when nav is open */
body.nav-open {
  overflow: hidden;
}

/* -----------------------------------------------------------------------
   Nav Menu Class Aliases (wp_nav_menu output)
   ----------------------------------------------------------------------- */
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0;
}

.nav-menu li a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-dark);
  text-decoration: none;
  border-radius: var(--radius-md);
  white-space: nowrap;
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
}

.nav-menu li a:hover,
.nav-menu li a.active {
  color: var(--color-blue);
  background-color: var(--color-blue-50);
}

.mobile-nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav-menu li a {
  display: block;
  padding: var(--space-4) 0;
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  color: var(--color-dark);
  text-decoration: none;
  border-block-end: 1px solid var(--color-light);
  transition: color var(--transition-fast);
}

.mobile-nav-menu li a:hover {
  color: var(--color-blue);
}

/* Site header nav wrapper */
.site-header__nav {
  display: none;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-header__cta {
  display: none;
}

.mobile-menu__cta {
  margin-block-start: var(--space-6);
  display: block;
  text-align: center;
}

/* Desktop: show nav and header CTA, hide hamburger */
@media (min-width: 1024px) {
  .site-header__nav {
    display: flex;
    align-items: center;
  }

  .site-header__cta {
    display: inline-flex;
  }

  .site-header__hamburger {
    display: none;
  }

  .mobile-menu {
    display: none !important;
  }
}