/* ========================================
   Footer Pages Modal Styles
   ======================================== */

/* モーダルオーバーレイ */
.footer-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.footer-modal[hidden] {
  display: none;
}

/* 背景オーバーレイ */
.footer-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

/* モーダルコンテンツ */
.footer-modal-content {
  position: relative;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   Modal Header
   ======================================== */

.footer-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 2px solid #e0e0e0;
  flex-shrink: 0;
}

.footer-modal-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0066cc;
  margin: 0;
}

.footer-modal-close {
  background: none;
  border: none;
  font-size: 2rem;
  color: #666;
  cursor: pointer;
  padding: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s;
  line-height: 1;
}

.footer-modal-close:hover {
  background-color: #f5f5f5;
  color: #333;
}

.footer-modal-close:focus-visible {
  outline: 3px solid #0066cc;
  outline-offset: 2px;
}

/* ========================================
   Tab Navigation
   ======================================== */

.footer-modal-tabs {
  display: flex;
  border-bottom: 2px solid #e0e0e0;
  background-color: #f8f9fa;
  flex-shrink: 0;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: #c0c0c0 #f8f9fa;
}

/* WebKit系ブラウザ用のスクロールバー */
.footer-modal-tabs::-webkit-scrollbar {
  height: 8px;
}

.footer-modal-tabs::-webkit-scrollbar-track {
  background: #f8f9fa;
}

.footer-modal-tabs::-webkit-scrollbar-thumb {
  background-color: #c0c0c0;
  border-radius: 4px;
}

.footer-modal-tabs::-webkit-scrollbar-thumb:hover {
  background-color: #a0a0a0;
}

.footer-tab-button {
  flex: 1;
  padding: 1rem;
  font-size: 0.9375rem;
  font-weight: 600;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  color: #666;
  min-height: 44px;
}

.footer-tab-button:hover {
  background-color: #e9ecef;
  color: #333;
}

.footer-tab-button:focus-visible {
  outline: 3px solid #0066cc;
  outline-offset: -3px;
}

.footer-tab-button.active {
  color: #0066cc;
  border-bottom-color: #0066cc;
  background-color: white;
}

/* ========================================
   Modal Body
   ======================================== */

.footer-modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}

/* タブコンテンツ */
.footer-tab-content {
  display: block;
}

.footer-tab-content[hidden] {
  display: none;
}

/* ========================================
   Content Sections
   ======================================== */

.content-section {
  margin-bottom: 2rem;
}

.content-section:last-child {
  margin-bottom: 0;
}

.content-section-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e0e0e0;
}

.content-section-subtitle {
  font-size: 1rem;
  font-weight: 600;
  color: #0066cc;
  margin: 1rem 0 0.5rem 0;
}

.content-section-text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: #333;
  margin-bottom: 0.75rem;
}

.content-section-list {
  list-style: none;
  padding-left: 0;
  margin: 0.75rem 0;
}

.content-section-list li {
  padding: 0.5rem 0 0.5rem 1.5rem;
  position: relative;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #333;
}

.content-section-list li:before {
  content: "•";
  position: absolute;
  left: 0.5rem;
  color: #0066cc;
  font-weight: bold;
}

/* ========================================
   Terms Section (利用規約)
   ======================================== */

.terms-section {
  margin-bottom: 2rem;
}

.terms-section:last-child {
  margin-bottom: 0;
}

.terms-heading {
  font-size: 1.125rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e0e0e0;
}

.terms-text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: #333;
  margin-bottom: 0.75rem;
}

.terms-list {
  list-style: none;
  padding-left: 0;
  margin: 0.75rem 0 1rem 0;
}

.terms-list li {
  padding: 0.5rem 0 0.5rem 1.5rem;
  position: relative;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #333;
}

.terms-list li:before {
  content: "•";
  position: absolute;
  left: 0.5rem;
  color: #0066cc;
  font-weight: bold;
}

/* 外部リンク */
.content-link {
  color: #0066cc;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s;
  word-break: break-all;
}

.content-link:hover {
  text-decoration: underline;
  color: #0052a3;
}

.content-link:focus-visible {
  outline: 3px solid #0066cc;
  outline-offset: 2px;
  border-radius: 2px;
}

/* ========================================
   Contact Modal (Google Form)
   ======================================== */

.contact-iframe-container {
  width: 100%;
  height: 600px;
  border: none;
  border-radius: 4px;
  overflow: hidden;
}

.contact-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ========================================
   Responsive Design - Mobile (< 768px)
   ======================================== */

@media (max-width: 767px) {
  .footer-modal {
    padding: 0;
  }
  
  .footer-modal-content {
    max-width: 100%;
    max-height: 100vh;
    border-radius: 0;
    animation: modalSlideUp 0.3s ease-out;
  }
  
  @keyframes modalSlideUp {
    from {
      opacity: 0;
      transform: translateY(100%);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .footer-modal-header {
    padding: 1rem 1.25rem;
  }
  
  .footer-modal-title {
    font-size: 1.25rem;
  }
  
  .footer-modal-close {
    font-size: 1.75rem;
    width: 32px;
    height: 32px;
  }
  
  .footer-modal-tabs {
    overflow-x: auto;
    overflow-y: hidden;
  }
  
  /* スクロールバーを表示 */
  .footer-modal-tabs::-webkit-scrollbar {
    height: 6px;
    display: block;
  }
  
  .footer-modal-tabs::-webkit-scrollbar-track {
    background: #f8f9fa;
  }
  
  .footer-modal-tabs::-webkit-scrollbar-thumb {
    background-color: #c0c0c0;
    border-radius: 3px;
  }
  
  .footer-modal-tabs::-webkit-scrollbar-thumb:hover {
    background-color: #a0a0a0;
  }
  
  .footer-modal-tabs {
    scrollbar-width: thin;
    scrollbar-color: #c0c0c0 #f8f9fa;
  }
  
  .footer-tab-button {
    flex: 0 0 auto;
    min-width: 100px;
    padding: 0.875rem 1rem;
    font-size: 0.875rem;
  }
  
  .footer-modal-body {
    padding: 1.25rem;
  }
  
  .content-section {
    margin-bottom: 1.5rem;
  }
  
  .content-section-title {
    font-size: 1rem;
  }
  
  .content-section-subtitle {
    font-size: 0.9375rem;
  }
  
  .content-section-text {
    font-size: 0.875rem;
  }
  
  .content-section-list li {
    font-size: 0.875rem;
    padding-left: 1.25rem;
  }
  
  .terms-section {
    margin-bottom: 1.5rem;
  }
  
  .terms-heading {
    font-size: 1rem;
  }
  
  .terms-text {
    font-size: 0.875rem;
  }
  
  .terms-list li {
    font-size: 0.875rem;
    padding-left: 1.25rem;
  }
  
  .contact-iframe-container {
    height: calc(100vh - 180px);
    min-height: 400px;
  }
}

/* ========================================
   Responsive Design - Tablet & Desktop (>= 768px)
   ======================================== */

@media (min-width: 768px) {
  .footer-modal-content {
    max-width: 800px;
  }
  
  .footer-modal-body {
    padding: 2rem;
  }
  
  .content-section {
    margin-bottom: 2.5rem;
  }
  
  .content-section-title {
    font-size: 1.25rem;
  }
}

/* ========================================
   Accessibility
   ======================================== */

/* フォーカス表示の強化 */
.footer-modal *:focus-visible {
  outline: 3px solid #0066cc;
  outline-offset: 2px;
}

/* スクリーンリーダー用 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ハイコントラストモード対応 */
@media (prefers-contrast: high) {
  .footer-modal-content {
    border: 3px solid currentColor;
  }
  
  .footer-tab-button {
    border: 2px solid transparent;
  }
  
  .footer-tab-button.active {
    border-color: currentColor;
  }
}

/* アニメーション削減モード対応 */
@media (prefers-reduced-motion: reduce) {
  .footer-modal-content {
    animation: none;
  }
  
  * {
    transition-duration: 0.01ms !important;
  }
}

/* ========================================
   Print Styles
   ======================================== */

@media print {
  .footer-modal-overlay {
    display: none;
  }
  
  .footer-modal-content {
    position: static;
    max-width: 100%;
    max-height: none;
    box-shadow: none;
    border: 1px solid #000;
  }
  
  .footer-modal-close {
    display: none;
  }
  
  .footer-modal-tabs {
    display: none;
  }
  
  .footer-tab-content[hidden] {
    display: block !important;
    page-break-before: always;
  }
}