/* モダンなレイアウトスタイル */

/* ヘッダー */
.app-header {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
  animation: slideIn var(--transition-slow) ease-out;
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.header-branding {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.logo-link {
  display: inline-block;
  margin-bottom: 0.5rem;
}

.app-logo {
  height: 48px;
  width: auto;
  display: block;
}

.app-subtitle {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  font-weight: 500;
  margin: 0;
}

/* ナビゲーション */
.main-nav {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.main-nav a {
  position: relative;
  padding: 0.625rem 1.25rem;
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-base);
  overflow: hidden;
}

.main-nav a::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
}

.main-nav a:hover {
  color: var(--primary-color);
  transform: translateY(-2px);
}

.main-nav a:hover::before {
  opacity: 0.1;
}

.main-nav a:active {
  transform: translateY(0);
}

/* パンくずリスト */
.breadcrumbs {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 0;
  font-size: 0.875rem;
  animation: fadeIn var(--transition-base) ease-out;
}

.breadcrumbs-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.breadcrumbs a {
  color: var(--text-secondary);
  padding: 0.25rem 0.5rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.breadcrumbs a:hover {
  color: var(--primary-color);
  background: var(--primary-light);
}

.breadcrumbs .separator {
  color: var(--text-tertiary);
  margin: 0 0.25rem;
}

.breadcrumbs .separator::before {
  content: '›';
  font-size: 1.25rem;
  line-height: 1;
}

.breadcrumbs .current {
  color: var(--text-primary);
  font-weight: 500;
  padding: 0.25rem 0.5rem;
}

/* メインコンテンツ */
.app-content {
  min-height: calc(100vh - 200px);
  padding: 2rem 0;
  animation: fadeIn var(--transition-slow) ease-out;
}

/* フッター */
.app-footer {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
  border-top: 1px solid var(--border-color);
  margin-top: 4rem;
  padding: 2rem 0;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary-color);
  background: var(--primary-light);
  transform: translateY(-2px);
}

.copyright {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin: 0;
}

/* モバイル用ハンバーガーメニュー */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--text-primary);
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
  .header-container {
    padding: 1rem;
  }
  
  .app-logo {
    height: 40px;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }
  
  .main-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .main-nav a {
    width: 100%;
    text-align: center;
  }
  
  .breadcrumbs-container {
    padding: 0 1rem;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 0.5rem;
  }
}

/* ローディングアニメーション */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--gray-300);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* スキップリンク（アクセシビリティ） */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  text-decoration: none;
  z-index: 1001;
}

.skip-link:focus {
  top: 10px;
  left: 10px;
}