/* ============================================================================
   高血圧学会 専門医e-ラーニング スタイルシート
   ============================================================================ */
:root{
  --bs-theme: #9ed0de;
  --bs-theme-light: #f2f6f8;
  --bs-theme-dark: #68a9c9;
  --bs-theme-text-dark: #03202f;
  --background: linear-gradient(135deg, #e2f3f6, #e2f1f6);
  --bs-primary: #2a8ba6;
  --bs-primary-hover: #24819a;
  --bs-secondary: #33ad9a;
  --bs-secondary-hover: #289f8d;
  --bs-warning: #dc8426;
  --bs-warning-hover: #cc781e;
  --bs-danger: #DC2626;
  --bs-danger-hover: #c81f1f;
  --bs-blue: #417bcb;
  --bs-blue-hover: #3569b2;
  --bs-disabled: #9ca3af;
}
/* ============================================================================
   1. ベース設定とリセット
   ============================================================================ */

/* フォント設定 */
* {
  font-family: "Noto Sans JP", sans-serif;
  font-optical-sizing: auto;
  font-weight: normal;
  font-style: normal;
  color: var(--bs-black);
}

/* ベースレイアウト - Sticky Footer */
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  background: var(--background);
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* アクセシビリティ - スクリーンリーダー用非表示テキスト */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.text-primary{
    --bs-text-opacity: 1;
    color: var(--bs-primary) !important;
}
.text-secondary {
    --bs-text-opacity: 1;
    color: var(--bs-secondary) !important;
}
.text-warning {
    --bs-text-opacity: 1;
    color: var(--bs-warning) !important;
}
.text-danger {
    --bs-text-opacity: 1;
    color: var(--bs-danger) !important;
}
/* ============================================================================
   2. ヘッダー
   ============================================================================ */

header {
  flex-shrink: 0;
  background-color: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 50;
}
header h1 a{
  text-decoration: none;
  color: #000;
  font-weight: bold;
}
header .container-lg {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ヘッダータイトル */
header h1 {
  color: #111827;
  font-weight: 700;
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: -0.025em;
}

/* ナビゲーション */
header nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}

header nav li {
  list-style: none;
}

header nav a {
  color: #6b7280;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  transition: all 0.15s ease;
  position: relative;
  margin: 0 0.125rem;
}
header nav li.login a{
  background: var(--bs-danger);
  border-radius: 10rem;
  padding: 0.4rem 1rem;
  color: white;
}
header nav li.login a:hover{
  background: var(--bs-danger-hover);
  color: white;
}
header nav a img{
  width: 22px;
  height: 22px;
  margin-right: 0.2rem;
  vertical-align: middle;
}

header nav a:hover {
  color: #111827;
  background-color: #f9fafb;
  text-decoration: none;
}

header nav a.active {
  color: #059669;
  background-color: #ecfdf5;
  font-weight: 600;
}

/* ============================================================================
   3. メインコンテンツ
   ============================================================================ */

main {
  flex: 1;
  padding: 3rem 0 6rem;
}

main .container-lg {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}
/* ページタイトル */
.page-title{
  margin-bottom: 4rem;
  text-align: center;
  color: var(--bs-theme-text-dark);
  padding: 1rem 0 0.5rem;
  margin-bottom: 3rem;
  background-image: repeating-linear-gradient(45deg, var(--bs-primary) 0 2px, transparent 2px 4px);
  background-repeat: no-repeat;
  background-size: 6rem 0.4rem;
  background-position: center bottom;
  font-weight: bold;
}
.page-title h1{
  font-size: 2rem;
}
/* ============================================================================
   4. アコーディオン
   ============================================================================ */

#lectureAccordion {
  max-width: 960px;
  margin: 0 auto;
}

.accordion-item {
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.accordion-header-custom {
  background-color: #f7f7f7;
  border-bottom: 1px solid #e5e7eb;
}

.accordion-button:not(.collapsed) {
  background: transparent;
  box-shadow: none;
}
.accordion-button {
  background-color: transparent;
  border: none;
  padding: 1.rem 1rem;
  font-weight: 600;
  color: #111827;
  font-size: 1.2rem;
  width: 100%;
  text-align: left;
}

.accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
  border-color: #059669;
  outline: none;
}

.accordion-body {
  padding: 1.5rem;
  background-color: #ffffff;
}

/* アクションボタン群 */
.action-buttons {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-right: 1rem;
  z-index: 2;
  padding: 0.6rem 0;
}
.card .action-buttons{
  padding: 0;
}
/* ============================================================================
   5. カードレイアウト
   ============================================================================ */

.card {
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  transition: all 0.15s ease;
  overflow: hidden;
}

.card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  transform: translateY(-1px);
}

.card-header {
  background-color: var(--bs-theme);
  border-bottom: 1px solid #e5e7eb;
  font-weight: normal;
  color: var(--bs-theme-text-dark);
  padding: 1rem;
}
/* 講義一覧のCardHeaderだけ、余白を小さく */
.lecture-list .card-header{
  padding: 0.5rem 1rem;
}
.card-body {
  /* padding: 1.5rem; */
}

.card-footer {
  background-color: #f9fafb;
  border-top: 1px solid #e5e7eb;
  padding: 1rem 1.5rem;
}

/* ============================================================================
   6. ボタンスタイル
   ============================================================================ */
/* ボタンの基本スタイル */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  transition: all 0.15s ease;
  border: none;
  text-align: center;
}
.btn:focus {
  outline: 2px solid transparent;
  outline-offset: 2px;
}

/* 講義一覧のアクションボタン */
.action-buttons .btn {
  padding: 0.3rem 0.6rem;
  border-radius: 0.2rem;
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}


/* プライマリボタン */
.btn-primary {
  background-color: var(--bs-primary);
  color: white;
}

.btn-primary:hover {
  background-color: var(--bs-primary-hover);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

/* 無効化ボタン */
.btn-disabled {
  background-color: var(--bs-disabled) !important;
  color: white;
  cursor: not-allowed;
  pointer-events: none;
}

/* 購入ボタン */
.btn-purchase {
  background-color: var(--bs-blue);
  color: white;
}

.btn-purchase:hover {
  background-color: var(--bs-blue-hover);
  color: white;
}

/* 視聴ボタン */
.btn-watch {
  background-color: var(--bs-secondary);
  color: white;
}

.btn-watch:hover {
  background-color: var(--bs-secondary-hover);
  color: white;
}

/* 試験ボタン */
.btn-exam {
  background-color: var(--bs-danger);
  color: white;
}

.btn-exam:hover {
  background-color: var(--bs-danger-hover);
  color: white;
}

/* 領収書ボタン */
.btn-receipt {
  background-color: var(--bs-warning);
  color: white;
}

.btn-receipt:hover {
  background-color: var(--bs-warning-hover);
  color: white;
}

/* 証明書ボタン */
.btn-certificate {
  background-color: var(--bs-primary);
  color: white;
}

.btn-certificate:hover {
  background-color: var(--bs-primary-hover);
  color: white;
}

/* 完了ボタン */
.btn-completed {
  background-color: var(--bs-secondary);
  color: white;
}

.btn-completed:hover {
  background-color: var(--bs-secondary-hover);
  color: white;
}

/* ============================================================================
   7. TOPボタン
   ============================================================================ */

.btn-goto-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background-color: var(--bs-secondary);
  color: white;
  border: none;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-goto-top:hover {
  background-color: #047857;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
  color: white;
}

.btn-goto-top.show {
  opacity: 1;
  visibility: visible;
}

/* ============================================================================
   8. フッター
   ============================================================================ */

footer {
  flex-shrink: 0;
  background-color: #f9fafb;
  border-top: 1px solid #e5e7eb;
  padding: 2.5rem 0;
  margin-top: auto;
}

footer .copyright {
  text-align: center;
  margin-bottom: 1.5rem;
  color: #6b7280;
  font-size: 0.875rem;
}

footer .footnav ul {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

footer .footnav a {
  color: #6b7280;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

footer .footnav a:hover {
  color: #059669;
}

/* ============================================================================
   9. 講師情報・講義情報
   ============================================================================ */

.instructor-name {
  color: #6b7280;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.lecture-title {
  color: #111827;
  font-weight: 600;
  font-size: 1.2rem;
  line-height: 1.5;
  margin-bottom: 0.5rem;
}

.lecture-duration {
  color: #6b7280;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

/* ============================================================================
   10. 登録フォーム内プライバシーポリシー
   ============================================================================ */

/* 登録フォーム内でのプライバシーポリシーの見出しサイズ調整 */
#privacy-policy .page-title h1 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

#privacy-policy h2 {
  font-size: 1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

#privacy-policy .privacy-policy {
  font-size: 0.875rem;
  line-height: 1.5;
}

#privacy-policy .privacy-policy p {
  margin-bottom: 0.75rem;
}

#privacy-policy .privacy-policy ul {
  margin-bottom: 0.75rem;
  padding-left: 1.25rem;
}

#privacy-policy .privacy-policy li {
  margin-bottom: 0.25rem;
}

/* ============================================================================
   11. レスポンシブデザイン
   ============================================================================ */

/* タブレット */
@media (max-width: 768px) {
  header .container-lg {
    padding: 0 1rem;
  }
  
  header h1 {
    font-size: 1.25rem;
  }
  
  header nav a {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }
  
  main {
    padding: 1.5rem 0;
  }
  
  main .container-lg {
    padding: 0 1rem;
  }
  
  .accordion-button {
    padding: 1rem 1.25rem;
  }
  
  .accordion-body {
    padding: 1.25rem;
  }
  
  .action-buttons {
    margin-right: 0.5rem;
  }
  
  .btn-goto-top {
    bottom: 1rem;
    right: 1rem;
    width: 45px;
    height: 45px;
  }
  
  footer .footnav ul {
    gap: 1rem;
    flex-wrap: wrap;
  }
}

/* スマートフォン */
@media (max-width: 576px) {
  header .container-lg {
    padding: 0 0.75rem;
    flex-direction: column;
    gap: 1rem;
  }
  
  header h1 {
    font-size: 1.125rem;
  }
  
  header nav ul {
    justify-content: center;
  }
  
  main {
    padding: 1rem 0;
  }
  
  main .container-lg {
    padding: 0 0.75rem;
  }
  
  .accordion-button {
    padding: 0.875rem 1rem;
    font-size: 0.875rem;
  }
  
  .accordion-body {
    padding: 1rem;
  }
  
  .action-buttons {
    flex-direction: column;
    margin-right: 0;
    gap: 0.25rem;
  }
  
  .btn {
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
    justify-content: center;
  }
  
  .card-body,
  .card-header,
  .card-footer {
    padding: 1rem;
  }
}