/* ===================================
   Navigation Styles
   =================================== */

/* Global Header */
.global-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-background, #FFF);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.3s ease;
}

.global-header.scrolled {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Navigation Wrapper */
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

/* Logo */
.logo img {
  height: 40px;
  width: auto;
}

/* Desktop Navigation */
.nav-menu.desktop {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-menu.desktop a {
  color: var(--color-text, #333);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.3s ease;
}

.nav-menu.desktop a:hover,
.nav-menu.desktop a.active {
  color: var(--color-primary, #D2691E);
}

.nav-menu.desktop a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary, #D2691E);
  transition: width 0.3s ease;
}

.nav-menu.desktop a.active::after,
.nav-menu.desktop a:hover::after {
  width: 100%;
}

/* Dropdown Menu */
.has-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  padding: 0.75rem 0;
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  margin-top: 0.5rem;
}

.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  margin-top: 0;
}

.dropdown-menu li {
  list-style: none;
}

.dropdown-menu a {
  display: block;
  padding: 0.5rem 1.5rem;
  color: var(--color-text, #333);
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.dropdown-menu a:hover {
  background-color: #F8F1DF;
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Language Selector */
.language-selector {
  position: relative;
}

.lang-current {
  background: none;
  border: 1px solid #DDD;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
  font-size: 0.875rem;
}

.lang-current:hover {
  border-color: var(--color-primary, #D2691E);
  color: var(--color-primary, #D2691E);
}

.lang-options {
  position: absolute;
  top: 100%;
  right: 0;
  background: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  padding: 0.5rem 0;
  min-width: 120px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  margin-top: 0.5rem;
  list-style: none;
  max-height: 300px;
  overflow-y: auto;
}

.language-selector:hover .lang-options {
  opacity: 1;
  visibility: visible;
  margin-top: 0.25rem;
}

.lang-options a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--color-text, #333);
  text-decoration: none;
  transition: background-color 0.2s ease;
  font-size: 0.875rem;
}

.lang-options a:hover {
  background-color: #F8F1DF;
}


/* Breadcrumb */
.breadcrumb {
  background: #F8F1DF;
  padding: 0.75rem 0;
  font-size: 0.875rem;
}

.breadcrumb ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
}

.breadcrumb li:not(:last-child)::after {
  content: '›';
  margin: 0 0.5rem;
  color: #999;
}

.breadcrumb a {
  color: var(--color-text, #333);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb a:hover {
  color: var(--color-primary, #D2691E);
}

.breadcrumb [aria-current="page"] {
  color: #666;
}

/* Guide Layout */
.guide-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 3rem;
  max-width: 1200px;
  margin: 2rem auto 0;
  padding: 0 1rem;
}

/* Guide Sidebar */
.guide-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.guide-nav h3 {
  font-size: 1.125rem;
  margin-bottom: 1rem;
  color: var(--color-text, #333);
}

.guide-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.guide-nav li {
  margin-bottom: 0.5rem;
}

.guide-nav a {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--color-text, #333);
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.guide-nav a:hover {
  background: #F8F1DF;
}

.guide-nav a.active {
  background: var(--color-primary, #D2691E);
  color: white;
}

/* Sidebar CTA */
.sidebar-cta {
  margin-top: 2rem;
  padding: 1.5rem;
  background: #F8F1DF;
  border-radius: 8px;
  text-align: center;
}

.sidebar-cta h4 {
  font-size: 1rem;
  margin-bottom: 1rem;
}

.sidebar-cta .cta-button {
  display: block;
  width: 100%;
  margin-bottom: 1rem;
}

.sidebar-cta .help-text {
  font-size: 0.875rem;
  color: #666;
  margin: 0;
}

/* CTA Button */
.cta-button {
  background: var(--color-primary, #D2691E);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
  text-align: center;
}

.cta-button:hover {
  background: #B8551A;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(210, 105, 30, 0.3);
}

/* Responsive Design */
@media (max-width: 968px) {
  .nav-wrapper {
    flex-wrap: wrap;
    gap: 1rem;
  }
  
  .nav-menu.desktop {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: 1rem;
    font-size: 0.875rem;
  }
  
  .nav-actions {
    order: 2;
  }
  
  .logo {
    order: 1;
  }
  
  /* ドロップダウンをタップ対応に */
  .has-dropdown:hover .dropdown-menu {
    opacity: 0;
    visibility: hidden;
  }
  
  .has-dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    margin-top: 0;
  }
  
  .guide-layout {
    grid-template-columns: 1fr;
  }
  
  .guide-sidebar {
    position: static;
    margin-bottom: 2rem;
    background: #F8F8F8;
    padding: 1.5rem;
    border-radius: 8px;
  }
  
  .guide-nav h3 {
    margin-bottom: 0.5rem;
  }
  
  .guide-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .guide-nav li {
    margin: 0;
  }
  
  .guide-nav a {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }
  
  .sidebar-cta {
    display: none;
  }
}

@media (max-width: 480px) {
  .breadcrumb {
    font-size: 0.75rem;
  }
  
  .nav-menu.desktop {
    font-size: 0.75rem;
    gap: 0.5rem;
  }
  
  .nav-menu.desktop a {
    padding: 0.25rem 0;
  }
  
  .dropdown-menu {
    min-width: 150px;
  }
  
  .dropdown-menu a {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
  }
  
  .lang-current {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
  }
  
  .language-selector {
    margin-left: 0.5rem;
  }
  
  .logo img {
    height: 30px;
  }
}

/* Accessibility */
:focus-visible {
  outline: 2px solid var(--color-primary, #D2691E);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .global-header,
  .mobile-nav,
  .guide-sidebar,
  .breadcrumb {
    display: none;
  }
}