/*
==========================================================================
RecruitPro Header & Navigation - 最終修正版
ハンバーガーメニュー完全動作保証 + z-index問題解決
==========================================================================
*/

/* CSS変数 */
:root {
  --primary-blue: #2563EB;
  --primary-navy: #1E40AF;
  --accent-orange: #F97316;
  --text-primary: #1E293B;
  --text-secondary: #475569;
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8FAFC;
  --shadow-card: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --radius-lg: 12px;
  --radius-xl: 16px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* z-index階層 - 確実に動作するよう高い値を設定 */
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-menu-button: 1060;
}

/* ヘッダー基本スタイル */
.site-header {
  position: fixed !important;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed) !important;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  border-bottom-color: rgba(0, 0, 0, 0.1);
  box-shadow: var(--shadow-card);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  min-height: 56px;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

/* サイトブランディング */
.site-branding {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  z-index: 10;
  position: relative;
}

.site-logo {
  max-height: 36px;
  width: auto;
  transition: max-height var(--transition-normal);
}

.site-header.scrolled .site-logo {
  max-height: 32px;
}

.site-logo img {
  height: auto;
  max-width: 100%;
  display: block;
}

.site-title {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.2;
}

.site-title a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-title a:hover {
  color: var(--primary-blue);
}

.site-description {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ヘッダーユーティリティ */
.header-utilities {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  position: relative;
  z-index: 10;
}

.header-cta.desktop-only {
  display: none;
}

@media (min-width: 768px) {
  .header-cta.desktop-only {
    display: block;
  }
}

.header-cta-btn {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.9rem;
  background: var(--primary-blue);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  transition: all var(--transition-normal);
}

.header-cta-btn:hover {
  background: var(--primary-navy);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
  text-decoration: none;
}

/* ハンバーガーメニューボタン（最高優先度z-index） */
.menu-btn {
  position: relative !important;
  z-index: var(--z-menu-button) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: none;
  background: transparent;
  cursor: pointer !important;
  transition: all var(--transition-normal);
  border-radius: var(--radius-lg);
  overflow: hidden;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.menu-btn:hover {
  background: rgba(37, 99, 235, 0.1);
  transform: scale(1.05);
}

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

.menu-btn:active {
  transform: scale(0.95);
}

.menu-btn-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-normal);
  pointer-events: none;
}

.menu-btn-text {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  line-height: 1;
  user-select: none;
}

.menu-btn:hover .menu-btn-text {
  color: var(--primary-blue);
  transform: translateY(-2px);
}

.menu-btn-icon {
  display: flex;
  flex-direction: column;
  gap: 3px;
  transition: all var(--transition-normal);
}

.menu-btn-line {
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all var(--transition-normal);
  transform-origin: center;
}

.menu-btn:hover .menu-btn-line {
  background: var(--primary-blue);
}

/* ホバー時のアニメーション */
.menu-btn:hover .menu-btn-line:nth-child(1) {
  transform: translateY(1px) rotate(5deg);
}

.menu-btn:hover .menu-btn-line:nth-child(2) {
  transform: scaleX(0.8);
}

.menu-btn:hover .menu-btn-line:nth-child(3) {
  transform: translateY(-1px) rotate(-5deg);
}

/* アクティブ状態（メニューが開いている時） */
.menu-btn.active {
  background: var(--primary-blue) !important;
  transform: scale(1.1);
}

.menu-btn.active .menu-btn-text {
  color: white !important;
}

.menu-btn.active .menu-btn-icon {
  transform: rotate(180deg);
}

.menu-btn.active .menu-btn-line {
  background: white !important;
}

.menu-btn.active .menu-btn-line:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.menu-btn.active .menu-btn-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.menu-btn.active .menu-btn-line:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* オーバーレイメニュー（確実に最前面に表示） */
.overlay-menu {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100vh !important;
  background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 50%, #1E40AF 100%);
  z-index: var(--z-modal) !important;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-slow);
  overflow-y: auto;
  overscroll-behavior: contain;
  pointer-events: none;
}

.overlay-menu.active {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
}

/* オーバーレイ背景装飾 */
.overlay-menu-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
    radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
    radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 100px 100px, 80px 80px, 120px 120px;
  animation: patternFloat 20s infinite linear;
}

.bg-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 30% 40%, rgba(234, 88, 12, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(5, 150, 105, 0.2) 0%, transparent 50%);
  animation: gradientShift 15s infinite ease-in-out;
}

@keyframes patternFloat {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(-20px, -20px) rotate(360deg); }
}

@keyframes gradientShift {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.1); }
}

/* オーバーレイメニューコンテナ */
.overlay-menu-container {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
  pointer-events: auto;
}

/* メニューヘッダー */
.overlay-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-sm) 0;
}

.menu-logo {
  max-height: 45px;
  width: auto;
}

.menu-logo img {
  height: auto;
  max-width: 100%;
  filter: brightness(0) invert(1);
}

.menu-site-title {
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}

/* 閉じるボタン */
.menu-close-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  color: white;
  font-weight: 600;
  cursor: pointer !important;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.menu-close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}

.menu-close-btn:active {
  transform: scale(0.95);
}

.close-btn-text {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  user-select: none;
}

.close-btn-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  position: relative;
}

.close-line {
  position: absolute;
  width: 16px;
  height: 2px;
  background: white;
  border-radius: 1px;
  transition: all var(--transition-fast);
}

.close-line:nth-child(1) {
  transform: rotate(45deg);
}

.close-line:nth-child(2) {
  transform: rotate(-45deg);
}

.menu-close-btn:hover .close-line {
  width: 18px;
}

/* メニューコンテンツ */
.overlay-menu-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.menucontent {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  width: 100%;
  max-width: 900px;
}

.l-sitemap__cell {
  position: relative;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition-normal);
  overflow: hidden;
  min-height: 300px;
  display: flex;
  flex-direction: column;
}

.l-sitemap__cell:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* メニューカード背景画像 */
.l-sitemap__cell__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.1;
  transition: opacity var(--transition-normal);
}

.l-sitemap__cell:hover .l-sitemap__cell__bg {
  opacity: 0.2;
}

.l-sitemap__cell__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* メニューカードヘッダー */
.l-sitemap__cell__parent {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-xs);
  background: none;
  border: none;
  color: white;
  cursor: pointer !important;
  text-align: left;
  width: 100%;
  padding: 0;
  margin-bottom: var(--spacing-md);
  transition: all var(--transition-fast);
  position: relative;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.l-sitemap__cell__parent:hover {
  transform: translateX(4px);
}

.l-sitemap__cell__parent:active {
  transform: scale(0.98);
}

.l-sitemap__cell__parent__en {
  font-size: 1rem;
  font-weight: 300;
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 2px;
  user-select: none;
}

.l-sitemap__cell__parent__ja {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
  user-select: none;
}

.menu-arrow {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  font-size: 0.9rem;
  opacity: 0.7;
  transition: all var(--transition-normal);
  pointer-events: none;
}

.l-sitemap__cell__parent[aria-expanded="true"] .menu-arrow {
  transform: rotate(180deg);
}

/* メニューサブアイテム */
.l-sitemap__cell__children {
  flex: 1;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all var(--transition-normal);
}

.l-sitemap__cell__children.active {
  max-height: 300px;
  opacity: 1;
}

.l-sitemap__cell__children ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.l-sitemap__cell__children li {
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition-normal);
}

.l-sitemap__cell__children.active li {
  transform: translateY(0);
  opacity: 1;
}

.l-sitemap__cell__children li:nth-child(1) { transition-delay: 0.1s; }
.l-sitemap__cell__children li:nth-child(2) { transition-delay: 0.2s; }
.l-sitemap__cell__children li:nth-child(3) { transition-delay: 0.3s; }

.l-sitemap__cell__children a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  font-weight: 500;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.l-sitemap__cell__children a:hover {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  transform: translateX(8px);
  text-decoration: none;
}

.l-sitemap__cell__children a:active {
  transform: scale(0.98);
}

.c-icon {
  flex-shrink: 0;
  width: 20px;
  text-align: center;
  opacity: 0.8;
}

/* メニューフッター */
.overlay-menu-footer {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

/* SNSリンク */
.menu-social {
  margin-bottom: var(--spacing-lg);
}

.c-snss {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  margin: 0;
  padding: 0;
  justify-content: center;
}

.c-sns {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: white;
  text-decoration: none;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.c-sns:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-4px) scale(1.1);
  text-decoration: none;
  color: white;
}

.c-sns:active {
  transform: scale(0.95);
}

.c-sns.-twitter:hover { background: rgba(29, 161, 242, 0.8); }
.c-sns.-instagram:hover { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }
.c-sns.-facebook:hover { background: rgba(66, 103, 178, 0.8); }

/* メニューCTA */
.menu-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.menu-entry-btn {
  background: var(--accent-orange) !important;
  border-color: transparent !important;
  color: white !important;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-normal);
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.menu-entry-btn:hover {
  background: #DC2626 !important;
  transform: translateY(-4px) scale(1.05);
  color: white !important;
  text-decoration: none;
}

.menu-entry-btn:active {
  transform: scale(0.95);
}

.menu-contact-btn {
  background: rgba(255, 255, 255, 0.1) !important;
  color: white !important;
  border: 2px solid rgba(255, 255, 255, 0.3) !important;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-normal);
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.menu-contact-btn:hover {
  background: rgba(255, 255, 255, 0.2) !important;
  border-color: rgba(255, 255, 255, 0.5) !important;
  color: white !important;
  text-decoration: none;
}

.menu-contact-btn:active {
  transform: scale(0.95);
}

/* 会社情報 */
.menu-company-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  text-align: center;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

.menu-company-info > div {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.menu-company-info a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color var(--transition-fast);
  outline: none;
}

.menu-company-info a:hover {
  color: white;
  text-decoration: none;
}

/* メニューオーバーレイ背景 */
.menu-overlay {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100vh !important;
  background: rgba(0, 0, 0, 0.3);
  z-index: var(--z-modal-backdrop) !important;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: blur(4px);
  pointer-events: none;
}

.menu-overlay.active {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
}

/* ボディロック */
body.menu-open,
html.menu-open {
  overflow: hidden !important;
  position: fixed !important;
  width: 100% !important;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .header-container {
    padding: 0.4rem 0.75rem;
    min-height: 50px;
  }

  .site-logo {
    max-height: 32px;
  }

  .site-title {
    font-size: 1rem;
  }

  .header-cta-btn {
    padding: 0.35rem 0.7rem;
    font-size: 0.75rem;
  }

  .menu-btn {
    width: 42px;
    height: 42px;
  }
  
  .menu-logo {
    max-height: 35px;
  }
  
  .overlay-menu-container {
    padding: var(--spacing-md);
  }
  
  .menucontent {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .l-sitemap__cell {
    padding: var(--spacing-lg);
    min-height: 250px;
  }
}

@media (max-width: 480px) {
  .site-logo {
    max-height: 30px;
  }
  
  .site-title {
    font-size: 1rem;
  }
  
  .overlay-menu-header {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  
  .menu-logo {
    max-height: 30px;
  }
  
  .l-sitemap__cell {
    padding: var(--spacing-md);
    min-height: 200px;
  }
  
  .l-sitemap__cell__parent__ja {
    font-size: 1.2rem;
  }
  
  .c-snss {
    gap: var(--spacing-sm);
  }
  
  .c-sns {
    width: 40px;
    height: 40px;
  }
}

/* タッチデバイス対応 */
@media (hover: none) and (pointer: coarse) {
  .menu-btn:hover,
  .menu-close-btn:hover,
  .l-sitemap__cell__parent:hover,
  .c-sns:hover {
    transform: none;
  }
  
  .menu-btn:active,
  .menu-close-btn:active,
  .l-sitemap__cell__parent:active {
    transform: scale(0.95);
  }
}

/* アクセシビリティ */
@media (prefers-reduced-motion: reduce) {
  .overlay-menu,
  .menu-btn,
  .l-sitemap__cell,
  .l-sitemap__cell__children,
  .l-sitemap__cell__children li {
    transition: none !important;
  }
  
  .bg-pattern,
  .bg-gradient {
    animation: none !important;
  }
}

/* 高コントラストモード */
@media (prefers-contrast: high) {
  .site-header {
    border-bottom-width: 2px;
  }
  
  .overlay-menu {
    background: #000000 !important;
  }
  
  .l-sitemap__cell {
    border-width: 2px;
    border-color: #FFFFFF !important;
  }
}

/* プリント対応 */
@media print {
  .site-header,
  .overlay-menu,
  .menu-overlay {
    display: none !important;
  }
}

/* 緊急修正用 - 確実に動作させるためのスタイル */
.menu-btn,
.menu-close-btn,
.l-sitemap__cell__parent,
.overlay-menu a,
.overlay-menu button {
  cursor: pointer !important;
  pointer-events: auto !important;
  user-select: none !important;
}

.overlay-menu.active * {
  pointer-events: auto !important;
}