/**
 * Navigation Component Styles
 * Enhanced with animations, hamburger icon, and improved mobile design
 */

/* Main Navigation */
.main-navigation {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  width: auto;
  flex: 1;
  position: relative;
  order: 2; /* Appears after logo but before toggle on mobile */
}

/* Menu Toggle Button - Mobile Only */
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--color-text);
  border: none;
  padding: var(--spacing-sm);
  cursor: pointer;
  border-radius: var(--border-radius);
  transition: all var(--transition-base);
  min-width: 44px;
  min-height: 44px;
  position: relative;
  z-index: calc(var(--z-index-dropdown) + 1);
  margin-left: auto; /* Push to the right */
  order: 3; /* Ensure it appears last */
}

.menu-toggle:hover,
.menu-toggle:focus {
  background: var(--color-bg-light);
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.menu-toggle:active {
  background: var(--color-bg-dark);
}

/* Hamburger Icon */
.hamburger-icon {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  position: relative;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease-in-out;
  transform-origin: center;
}

/* Hamburger to X Animation */
.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Navigation Menu */
.main-navigation ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-navigation ul li {
  display: inline-block;
  margin-left: var(--spacing-lg);
  position: relative;
}

.main-navigation ul li:first-child {
  margin-left: 0;
}

.main-navigation ul li a {
  display: block;
  text-decoration: none;
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  padding: var(--spacing-xs) 0;
  position: relative;
  transition: color var(--transition-base);
}

/* Hover Effect - Underline Animation */
.main-navigation ul li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
}

.main-navigation ul li a:hover::after,
.main-navigation ul li a:focus::after {
  width: 100%;
}

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

/* Active/Current Page Highlighting */
.main-navigation ul li.current-menu-item > a,
.main-navigation ul li.current-page-item > a,
.main-navigation ul li.current-menu-ancestor > a {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.main-navigation ul li.current-menu-item > a::after,
.main-navigation ul li.current-page-item > a::after,
.main-navigation ul li.current-menu-ancestor > a::after {
  width: 100%;
  background-color: var(--color-primary);
}

/* Mobile Menu Backdrop */
.menu-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  z-index: calc(var(--z-index-dropdown) - 1);
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}

.menu-backdrop.active {
  display: block;
  opacity: 1;
}

/* Desktop Menu - 768px and up (Show by default) */
@media (min-width: 768px) {
  /* Hide menu toggle button on desktop */
  .menu-toggle {
    display: none !important;
  }

  /* Hide backdrop on desktop */
  .menu-backdrop {
    display: none !important;
  }

  /* Show menu on desktop */
  .main-navigation {
    position: static;
    width: auto;
    height: auto;
    transform: none;
    background: transparent;
    box-shadow: none;
    padding: 0;
    overflow: visible;
    flex-direction: row;
  }

  .main-navigation ul {
    display: flex !important;
    margin-left: auto;
    position: static;
    width: auto;
    background: transparent;
    box-shadow: none;
    padding: 0;
  }

  .main-navigation ul li {
    display: inline-block;
    margin-left: var(--spacing-lg);
    padding: 0;
    border-bottom: none;
    opacity: 1;
  }

  .main-navigation ul li:first-child {
    margin-left: 0;
  }

  .main-navigation ul li a {
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-base);
  }

  .main-navigation ul li a::after {
    display: block;
  }

  /* Ensure toggled state doesn't affect desktop */
  .main-navigation.toggled {
    position: static;
    width: auto;
    height: auto;
    transform: none !important;
    background: transparent;
    box-shadow: none;
    padding: 0;
    overflow: visible;
  }

  .main-navigation.toggled ul {
    display: flex !important;
  }
}

/* Mobile Menu - Hide by default, show when toggled */
@media (max-width: 767px) {
  /* Hide menu on mobile by default */
  .main-navigation ul {
    display: none;
  }

  /* Mobile menu container - fixed slide-in panel */
  .main-navigation.toggled {
    position: fixed;
    top: 0;
    right: 0;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-bg);
    box-shadow: var(--box-shadow-lg);
    z-index: var(--z-index-dropdown);
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    overflow-y: auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    display: flex;
    flex-direction: column;
  }

  .main-navigation.toggled.active {
    transform: translateX(0);
  }

  /* Show menu when toggled */
  .main-navigation.toggled ul {
    display: block !important;
    width: 100%;
    position: static;
    padding: 0;
    margin: 0;
    animation: menuFadeIn 0.4s ease-in-out;
  }

  @keyframes menuFadeIn {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .main-navigation.toggled ul li {
    display: block;
    margin: 0;
    padding: 0;
    border-bottom: 1px solid var(--color-border);
    opacity: 0;
    animation: menuItemFadeIn 0.3s ease-in-out forwards;
  }

  .main-navigation.toggled ul li:nth-child(1) {
    animation-delay: 0.1s;
  }

  .main-navigation.toggled ul li:nth-child(2) {
    animation-delay: 0.15s;
  }

  .main-navigation.toggled ul li:nth-child(3) {
    animation-delay: 0.2s;
  }

  .main-navigation.toggled ul li:nth-child(4) {
    animation-delay: 0.25s;
  }

  .main-navigation.toggled ul li:nth-child(5) {
    animation-delay: 0.3s;
  }

  .main-navigation.toggled ul li:nth-child(6) {
    animation-delay: 0.35s;
  }

  .main-navigation.toggled ul li:nth-child(n+7) {
    animation-delay: 0.4s;
  }

  @keyframes menuItemFadeIn {
    from {
      opacity: 0;
      transform: translateX(-10px);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }

  .main-navigation.toggled ul li:last-child {
    border-bottom: none;
  }

  .main-navigation.toggled ul li a {
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-lg);
    border-bottom: none;
  }

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

  /* Mobile submenu handling */
  .main-navigation.toggled ul ul {
    position: static;
    display: block;
    box-shadow: none;
    padding-left: var(--spacing-md);
    margin-top: var(--spacing-xs);
    border-left: 2px solid var(--color-border);
  }
}

/* Submenu Support (for future dropdown menus) */
.main-navigation ul li.menu-item-has-children {
  position: relative;
}

.main-navigation ul ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-bg);
  box-shadow: var(--box-shadow-md);
  padding: var(--spacing-sm) 0;
  min-width: 200px;
  border-radius: var(--border-radius);
  margin-top: var(--spacing-xs);
  z-index: calc(var(--z-index-dropdown) + 1);
}

.main-navigation ul li:hover > ul,
.main-navigation ul li:focus-within > ul {
  display: block;
}

.main-navigation ul ul li {
  display: block;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--color-border);
}

.main-navigation ul ul li:last-child {
  border-bottom: none;
}

.main-navigation ul ul li a {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* Close button in mobile menu (if needed) */
.menu-close {
  display: none;
}