/**
 * Header Layout
 * 
 * Site header with responsive navigation using WordPress class structure
 * Integrates with the wbl design system for consistency
 * 
 * @package wbl
 */

/* ================================================================
   HEADER COMPONENT
   ================================================================ */

.site-header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-medium);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow var(--transition-medium);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
  .site-header .container {
    padding: 0 var(--spacing-md);
  }
}

/* ================================================================
   SITE BRANDING
   ================================================================ */

.site-branding {
  margin: 0;
  flex-shrink: 0;
}

.site-branding a {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-medium);
  display: inline-block;
}

.site-branding a:hover,
.site-branding a:focus {
  color: var(--color-text-primary);
  text-decoration: none;
}

.site-branding img {
  max-height: 60px;
  width: auto;
  display: block;
}

@media (max-width: 767px) {
  .site-branding img {
    max-height: 45px;
  }
}

/* ================================================================
   MAIN NAVIGATION
   ================================================================ */

.main-navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

@media (max-width: 767px) {
  .main-navigation {
    justify-content: flex-end;
  }
}

/* Menu Toggle Button (Mobile) */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-small);
  transition: all var(--transition-medium);
  position: relative;
  z-index: 101;
  min-width: 44px;
  min-height: 44px;
}

.menu-toggle:hover,
.menu-toggle:focus {
  background-color: var(--color-bg-alt);
}

.menu-toggle:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.menu-toggle[aria-expanded="true"] {
  background-color: var(--color-primary);
}

/* Screen Reader Text */
.menu-toggle .screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Hamburger Icon */
.hamburger-icon {
  display: block;
  width: 24px;
  height: 18px;
  position: relative;
  margin: 0 auto;
}

.hamburger-icon span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-primary);
  border-radius: 1px;
  position: absolute;
  transition: all var(--transition-medium);
}

.hamburger-icon span:nth-child(1) {
  top: 0;
}

.hamburger-icon span:nth-child(2) {
  top: 50%;
  transform: translateY(-50%);
}

.hamburger-icon span:nth-child(3) {
  bottom: 0;
}

/* Hamburger Animation to X */
.menu-toggle[aria-expanded="true"] .hamburger-icon span {
  background-color: var(--color-white);
}

.menu-toggle[aria-expanded="true"] .hamburger-icon span:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger-icon span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .hamburger-icon span:nth-child(3) {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
}

/* ================================================================
   NAVIGATION MENU
   ================================================================ */

.main-navigation ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.main-navigation ul li {
  margin: 0;
  position: relative;
}

.main-navigation ul li a {
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-small);
  transition: all var(--transition-medium);
  display: block;
  white-space: nowrap;
}

.main-navigation ul li a:hover,
.main-navigation ul li a:focus {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
  text-decoration: none;
}

.main-navigation ul li a:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Current/Active Page */
.main-navigation ul li.current-menu-item a,
.main-navigation ul li.current_page_item a,
.main-navigation ul li a[aria-current="page"] {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.main-navigation ul li.current-menu-item a:hover,
.main-navigation ul li.current_page_item a:hover,
.main-navigation ul li a[aria-current="page"]:hover {
  background-color: var(--color-text-primary);
}

/* ================================================================
   DROPDOWN/SUBMENU SUPPORT
   ================================================================ */

.main-navigation ul ul {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--color-white);
  box-shadow: var(--shadow-heavy);
  border-radius: var(--radius-medium);
  padding: var(--spacing-xs);
  min-width: 200px;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-medium);
  flex-direction: column;
  gap: 0;
}

.main-navigation ul li:hover > ul,
.main-navigation ul li:focus-within > ul {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-navigation ul ul li {
  width: 100%;
}

.main-navigation ul ul li a {
  padding: var(--spacing-sm);
  border-radius: var(--radius-small);
  white-space: normal;
}

/* Third level dropdowns */
.main-navigation ul ul ul {
  left: 100%;
  top: 0;
}

/* ================================================================
   RTL SUPPORT
   ================================================================ */

[dir="rtl"] .site-header .container {
  direction: rtl;
}

[dir="rtl"] .main-navigation ul {
  direction: rtl;
}

[dir="rtl"] .main-navigation ul li a {
  text-align: right;
}

[dir="rtl"] .main-navigation ul ul {
  left: auto;
  right: 0;
}

[dir="rtl"] .main-navigation ul ul ul {
  left: auto;
  right: 100%;
}

/* RTL using body class (WordPress default) */
body.rtl .site-header .container {
  direction: rtl;
}

body.rtl .main-navigation ul {
  direction: rtl;
}

body.rtl .main-navigation ul li a {
  text-align: right;
}

body.rtl .main-navigation ul ul {
  left: auto;
  right: 0;
}

body.rtl .main-navigation ul ul ul {
  left: auto;
  right: 100%;
}

/* ================================================================
   MOBILE RESPONSIVE
   ================================================================ */

@media (max-width: 767px) {
  .menu-toggle {
    display: block;
  }

  /* Mobile menu backdrop */
  .main-navigation::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility var(--transition-medium);
  }

  .main-navigation.toggled::after {
    opacity: 1;
    visibility: visible;
  }

  /* Mobile menu bubble */
  .main-navigation ul {
    display: none;
    position: absolute;
    top: calc(100% + var(--spacing-xs));
    left: var(--spacing-sm);
    right: var(--spacing-sm);
    background-color: var(--color-white);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 
                0 10px 20px rgba(0, 0, 0, 0.1),
                0 20px 40px rgba(0, 0, 0, 0.05);
    padding: var(--spacing-sm) 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border-radius: var(--radius-large);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px) scale(0.95);
    transform-origin: top right;
    transition: opacity var(--transition-medium) cubic-bezier(0.4, 0, 0.2, 1),
                visibility var(--transition-medium) cubic-bezier(0.4, 0, 0.2, 1),
                transform var(--transition-medium) cubic-bezier(0.34, 1.56, 0.64, 1);
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .main-navigation.toggled ul {
    display: flex;
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
  }

  /* RTL transform origin */
  [dir="rtl"] .main-navigation ul,
  body.rtl .main-navigation ul {
    transform-origin: top left;
  }

  .main-navigation ul li {
    opacity: 0;
    transform: translateY(-10px);
    animation: menuItemFadeIn 0.3s ease forwards;
  }

  /* Staggered animation for menu items */
  .main-navigation.toggled ul li:nth-child(1) { animation-delay: 0.05s; }
  .main-navigation.toggled ul li:nth-child(2) { animation-delay: 0.1s; }
  .main-navigation.toggled ul li:nth-child(3) { animation-delay: 0.15s; }
  .main-navigation.toggled ul li:nth-child(4) { animation-delay: 0.2s; }
  .main-navigation.toggled ul li:nth-child(5) { animation-delay: 0.25s; }
  .main-navigation.toggled ul li:nth-child(6) { animation-delay: 0.3s; }
  .main-navigation.toggled ul li:nth-child(7) { animation-delay: 0.35s; }
  .main-navigation.toggled ul li:nth-child(8) { animation-delay: 0.4s; }

  @keyframes menuItemFadeIn {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .main-navigation ul li a {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: center;
    margin: 0 var(--spacing-sm);
    border-radius: var(--radius-medium);
    width: calc(100% - var(--spacing-md) * 2);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-medium);
    font-weight: var(--font-weight-medium);
  }

  /* Ripple effect on tap */
  .main-navigation ul li a::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(115, 53, 16, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
  }

  .main-navigation ul li a:active::before {
    width: 200px;
    height: 200px;
  }

  .main-navigation ul li a:hover,
  .main-navigation ul li a:focus {
    background-color: var(--color-bg-alt);
    transform: scale(0.98);
  }

  /* Active/Current page in bubble */
  .main-navigation ul li.current-menu-item a,
  .main-navigation ul li.current_page_item a {
    background-color: var(--color-primary);
    color: var(--color-white);
  }

  .main-navigation ul li.current-menu-item a:hover,
  .main-navigation ul li.current_page_item a:hover {
    background-color: var(--color-text-primary);
    transform: scale(0.98);
  }

  /* Mobile dropdowns/submenus */
  .main-navigation ul ul {
    position: static;
    background: transparent;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
    margin: var(--spacing-xs) 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .main-navigation ul ul li {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .main-navigation ul ul li a {
    padding-left: var(--spacing-xxl);
    background-color: transparent;
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
  }

  .main-navigation ul ul li a:hover,
  .main-navigation ul ul li a:focus {
    background-color: rgba(115, 53, 16, 0.05);
    color: var(--color-primary);
  }

  /* RTL Mobile */
  [dir="rtl"] .main-navigation ul li a,
  body.rtl .main-navigation ul li a {
    text-align: center;
  }

  [dir="rtl"] .main-navigation ul ul li a,
  body.rtl .main-navigation ul ul li a {
    padding-right: var(--spacing-xxl);
    padding-left: var(--spacing-lg);
  }

  /* Reduced motion support */
  @media (prefers-reduced-motion: reduce) {
    .main-navigation ul {
      transition: opacity var(--transition-fast), visibility var(--transition-fast);
      transform: none !important;
    }

    .main-navigation ul li {
      animation: none !important;
      opacity: 1 !important;
      transform: none !important;
    }

    .main-navigation ul li a::before {
      display: none;
    }
  }
}

/* ================================================================
   MOBILE MENU BODY STATES
   ================================================================ */

/* Prevent body scroll when menu is open */
body.menu-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
}

/* ================================================================
   ACCESSIBILITY ENHANCEMENTS
   ================================================================ */

/* Skip Link Enhancement */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-sm);
  text-decoration: none;
  border-radius: var(--radius-small);
  z-index: 1000;
  transition: top var(--transition-medium);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
}

.skip-link:focus {
  top: 6px;
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .site-header {
    border-bottom: 2px solid;
  }
  
  .main-navigation ul li a {
    border: 1px solid transparent;
  }
  
  .main-navigation ul li a:focus {
    border-color: currentColor;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .site-header,
  .menu-toggle,
  .main-navigation ul,
  .main-navigation ul li a,
  .main-navigation ul ul {
    transition: none;
  }
}

/* ================================================================
   UTILITY CLASSES FOR HEADER
   ================================================================ */

/* Header variations */
.site-header--transparent {
  background-color: transparent;
  box-shadow: none;
}

.site-header--scrolled {
  box-shadow: var(--shadow-heavy);
}

/* Navigation states */
.main-navigation--mobile-open .menu-toggle {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* WordPress compatibility classes */
.main-navigation .menu-item-has-children > a::after {
  content: "▼";
  font-size: 0.8em;
  margin-left: var(--spacing-xs);
  opacity: 0.7;
}

[dir="rtl"] .main-navigation .menu-item-has-children > a::after,
body.rtl .main-navigation .menu-item-has-children > a::after {
  margin-left: 0;
  margin-right: var(--spacing-xs);
}

@media (max-width: 767px) {
  .main-navigation .menu-item-has-children > a::after {
    content: "▶";
  }
  
  [dir="rtl"] .main-navigation .menu-item-has-children > a::after,
  body.rtl .main-navigation .menu-item-has-children > a::after {
    content: "◀";
  }
}