/**
 * Roshd Afarin Kimia Kerman (RAK) — Header styles
 * File: assets/css/header.css
 *
 * Styles the Astra primary header: navigation links and the custom
 * Polylang language switcher (positioned top corner, opposite the logo).
 * Uses design-system tokens from variables.css. RTL-aware via logical
 * properties, so it mirrors automatically in Persian.
 */

/* ============================================================
   1) PRIMARY NAVIGATION
   ============================================================ */

.ast-primary-header-bar .main-header-menu > .menu-item > .menu-link,
.main-header-menu > .menu-item > .menu-link {
  font-size: var(--fs-nav);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  padding-inline: var(--space-xs);
  transition: color var(--transition-fast);
}

/* Brand-green hover / active state */
.main-header-menu > .menu-item > .menu-link:hover,
.main-header-menu > .menu-item.current-menu-item > .menu-link {
  color: var(--color-primary);
}

/* ============================================================
   2) LANGUAGE SWITCHER
   Pinned to the top corner opposite the logo
   (top-right in LTR, top-left in RTL).
   ============================================================ */

/* Anchor: the header grid row is the positioning context */
.ast-builder-grid-row {
  position: relative;
}

/* Switcher wrapper: pinned to the corner opposite the logo,
   vertically centered within the header row */
.rak-header-lang {
  display: inline-flex;
  align-items: center;
  line-height: 1;
  list-style: none;
  margin: 0;
  padding-inline-start: var(--space-sm);
  margin-inline-start: var(--space-sm);
  border-inline-start: 1px solid var(--color-border);
}

/* Neutralise its host <li> when injected into the menu */
.main-header-menu .menu-item.rak-header-lang {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Positioning context for the dropdown panel */
.rak-lang {
  position: relative;
  display: inline-block;
  line-height: 1;
}

/* Toggle (current language) — override Astra's default button chrome */
.main-header-menu .rak-lang__toggle,
.rak-header-lang .rak-lang__toggle {
  display: inline-flex !important;
  align-items: center;
  gap: 4px;
  background: none !important;
  border: none !important;
  box-shadow: none !important;
  cursor: pointer;
  font-family: var(--font-base);
  font-size: var(--fs-nav);
  font-weight: var(--fw-semibold);
  color: var(--color-primary) !important;
  padding: var(--space-xs) var(--space-sm) !important;
  margin: 0;
  line-height: 1;
  transition: color var(--transition-fast);
}

.main-header-menu .rak-lang__toggle:hover,
.rak-header-lang .rak-lang__toggle:hover {
  background: none !important;
  color: var(--color-accent-dark) !important;
}

.rak-lang__caret {
  font-size: 0.75em;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}

.rak-lang:hover .rak-lang__caret {
  transform: translateY(1px);
}

/* Dropdown panel — anchored directly below the toggle */
.rak-lang__menu {
  position: absolute;
  top: calc(100% + 6px);
  inset-inline-end: 0;
  margin: 0;
  padding: var(--space-2xs);
  list-style: none;
  min-width: 120px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 200;
}

/* Invisible bridge so the mouse can cross the gap without closing */
.rak-lang__menu::before {
  content: "";
  position: absolute;
  top: -8px;
  inset-inline: 0;
  height: 8px;
}

/* Reveal on hover of the whole switcher */
.rak-lang:hover .rak-lang__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Dropdown links */
.rak-lang__menu li {
  margin: 0;
}

.rak-lang__menu a {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: var(--fs-nav);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.rak-lang__menu a:hover {
  background: var(--color-primary-tint);
  color: var(--color-primary);
}
/* Mobile language switcher — shown in the mobile bar, hidden on desktop */
.rak-mobile-lang {
  display: none;
}

@media (max-width: 921px) {
  /* Hide the in-menu switcher on mobile (it doesn't render in Astra's mobile menu anyway) */
  li.rak-header-lang {
    display: none !important;
  }

  /* Show the standalone mobile switcher next to the hamburger */
  .rak-mobile-lang {
    display: flex !important;
    align-items: center;
    margin-inline-end: var(--space-md);
  }

  .rak-mobile-lang .rak-lang-link {
    font-size: var(--fs-caption);
    padding: var(--space-2xs) var(--space-sm);
  }
}
/* ============================================================
   LANGUAGE SWITCHER — simple link (desktop + mobile)
   ============================================================ */

/* Desktop: pill-style link, separated from the menu */
.rak-header-lang {
  display: flex !important;
  align-items: center;
}

.rak-lang-link {
  display: inline-block;
  font-size: var(--fs-nav);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  text-decoration: none;
  padding: var(--space-2xs) var(--space-md);
  border: var(--border-width-strong) solid var(--color-primary);
  border-radius: var(--radius-full);
  line-height: 1.6;
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.rak-lang-link:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

/* Mobile: show inside the off-canvas menu as a full-width item */
@media (max-width: 921px) {

  li.rak-header-lang {
    display: block !important;
    width: 100%;
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-sm);
    padding: var(--space-md) var(--space-lg) !important;
    position: static !important;
    inset-inline-end: auto !important;
    transform: none !important;
  }

  li.rak-header-lang .rak-lang-link {
    display: inline-block;
  }
}
/* ============================================================
   LANGUAGE SWITCHER — flag glow + mobile
   ============================================================ */

/* Flag-colored glow behind each language link */
.rak-lang-link--en {
  box-shadow: 0 0 0 2px rgba(255,255,255,0.9), 0 2px 10px rgba(1, 33, 105, 0.45);
}
.rak-lang-link--fa {
  box-shadow: 0 2px 10px rgba(35, 159, 64, 0.45);
}

/* Mobile switcher next to hamburger */
.rak-mobile-lang { display: none; }

@media (max-width: 921px) {
  li.rak-header-lang { display: none !important; }

  .rak-mobile-lang {
    display: flex !important;
    align-items: center;
    margin-inline-end: var(--space-md);
  }
  .rak-mobile-lang .rak-lang-link {
    font-size: var(--fs-caption);
    padding: var(--space-2xs) var(--space-sm);
  }
}
/* JS-injected mobile language switcher */
.rak-mobile-lang-js { display: none; }

@media (max-width: 921px) {
  .rak-mobile-lang-js {
    display: flex !important;
    align-items: center;
    margin-inline-end: var(--space-sm);
  }
  .rak-mobile-lang-js .rak-lang-link {
    font-size: var(--fs-caption);
    padding: 2px var(--space-sm);
  }
}
/* ============================================================
   STICKY HEADER
   ============================================================ */

.site-header,
.ast-primary-header-bar,
#masthead {
  position: sticky;
  top: 0;
  z-index: 999;
  background: var(--color-background);
  transition: box-shadow var(--transition-base), padding var(--transition-base);
}

/* When scrolled — semi-transparent frosted header with subtle shadow */
body.rak-scrolled .site-header,
body.rak-scrolled #masthead,
body.rak-scrolled .ast-primary-header-bar {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 2px 12px rgba(18, 61, 31, 0.10);
  transition: background var(--transition-base), backdrop-filter var(--transition-base);
}

/* On hover — return to fully solid header */
body.rak-scrolled .site-header:hover,
body.rak-scrolled #masthead:hover,
body.rak-scrolled .ast-primary-header-bar:hover {
  background: var(--color-background);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}