/* blog.css - ブログ記事一覧・詳細ページスタイル */

/* ===== 共通変数 ===== */
:root {
  --text-secondary: #837a70;
  --primary-color: #007bff;
}

[data-theme="dark"] {
  --text-secondary: #b4b0a8;
  --primary-color: #4b9cff;
}

/* ===== ブログ一覧ページ ===== */

.blog-list {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.blog-list__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: var(--bg-primary);
}

.blog-list__back-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
  font-size: 0.875rem;
  transition: color 0.2s;
  flex-shrink: 0;
}

.blog-list__back-btn:hover {
  color: var(--primary-color);
}

.blog-list__back-btn i {
  font-size: 1.25rem;
}

.blog-list__title {
  flex: 1;
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.blog-list__container {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.blog-list__loading {
  flex: 1;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.blog-list__skeleton {
  padding: 1rem;
  background-color: var(--bg-secondary);
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
}

.blog-list__cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem;
}

.blog-list__card {
  display: flex;
  gap: 1rem;
  padding: 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s;
}

.blog-list__card:hover {
  border-color: var(--primary-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.blog-list__card:active {
  transform: scale(0.98);
}

.blog-list__card-image-wrapper {
  flex-shrink: 0;
  width: 100px;
  height: 100px;
  overflow: hidden;
  border-radius: 0.375rem;
  background-color: var(--border-color);
}

.blog-list__card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-list__card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
}

.blog-list__card-title {
  margin: 0 0 0.5rem 0;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-list__card-summary {
  margin: 0 0 0.75rem 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-list__card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.blog-list__card-date {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.blog-list__card-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.blog-list__card-tag {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  font-size: 0.65rem;
  background-color: var(--border-color);
  color: var(--text-secondary);
  border-radius: 0.25rem;
}

.blog-list__card-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-secondary);
  font-size: 1.25rem;
}

.blog-list__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem 1rem;
  text-align: center;
  color: var(--text-secondary);
}

.blog-list__empty i {
  font-size: 3rem;
  opacity: 0.5;
}

.blog-list__empty p {
  margin: 0;
  font-size: 0.95rem;
}

/* ===== ブログ詳細ページ ===== */

.blog-post {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.blog-post__loading {
  padding: 1rem;
}

.blog-post__not-found {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem 1rem;
}

.blog-post__not-found-content {
  text-align: center;
  color: var(--text-secondary);
}

.blog-post__not-found-content i {
  display: block;
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.blog-post__not-found-content h2 {
  margin: 0 0 0.5rem 0;
  font-size: 1.25rem;
}

.blog-post__not-found-content p {
  margin: 0 0 1.5rem 0;
  font-size: 0.9rem;
}

.blog-post__not-found-btn {
  padding: 0.75rem 1.5rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 0.375rem;
  font-size: 0.9rem;
  cursor: pointer;
  transition: opacity 0.2s;
}

.blog-post__not-found-btn:hover {
  opacity: 0.9;
}

.blog-post__content {
  display: flex;
  flex-direction: column;
}

.blog-post__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: var(--bg-primary);
}

.blog-post__back-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
  font-size: 0.875rem;
  transition: color 0.2s;
  flex-shrink: 0;
}

.blog-post__back-btn:hover {
  color: var(--primary-color);
}

.blog-post__back-btn i {
  font-size: 1.25rem;
}

.blog-post__nav-title {
  flex: 1;
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.blog-post__header-image-wrapper {
  width: 100%;
  max-height: 300px;
  overflow: hidden;
  background-color: var(--border-color);
}

.blog-post__header-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-post__header-content {
  padding: 1.5rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.blog-post__title {
  margin: 0 0 1rem 0;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.4;
}

.blog-post__summary {
  margin: 0 0 0.5rem 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.blog-post__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.blog-post__date {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.blog-post__tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.blog-post__tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  background-color: var(--border-color);
  color: var(--text-secondary);
  border-radius: 0.25rem;
}

.blog-post__body {
  padding: 1.5rem 1rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-primary);
}

.blog-post__body h2 {
  margin-top: 1.5rem;
  margin-bottom: 1rem;
  font-size: 1.25rem;
  font-weight: 600;
}

.blog-post__body h3 {
  margin-top: 1rem;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.blog-post__body p {
  margin-bottom: 1rem;
}

.blog-post__body ul,
.blog-post__body ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.blog-post__body li {
  margin-bottom: 0.5rem;
}

.blog-post__body a {
  color: var(--primary-color);
  text-decoration: none;
  transition: opacity 0.2s;
}

.blog-post__body a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

.blog-post__body blockquote {
  margin: 1rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--border-color);
  color: var(--text-secondary);
  font-style: italic;
}

/* 著者プロフィールカード（静的・全記事共通） */
.blog-post__author-card {
  margin: 2rem 1rem;
  padding: 1.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
}

.blog-post__author-card-heading {
  margin: 0 0 1rem 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: none;
}

.blog-post__author-card-body {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.blog-post__author-card-image {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 50%;
  background-color: var(--border-color);
}

.blog-post__author-card-content {
  flex: 1;
  min-width: 0;
}

.blog-post__author-card-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.blog-post__author-card-role {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.blog-post__author-card-bio {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-primary);
}

@media (max-width: 480px) {
  .blog-post__author-card {
    margin: 1.5rem 1rem;
    padding: 1.25rem;
  }
  .blog-post__author-card-body {
    gap: 0.875rem;
  }
  .blog-post__author-card-image {
    width: 64px;
    height: 64px;
  }
  .blog-post__author-card-name {
    font-size: 1rem;
  }
  .blog-post__author-card-bio {
    font-size: 0.875rem;
  }
}

.blog-post__places-section {
  padding: 1.5rem 1rem;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.blog-post__places-title {
  margin: 0 0 1rem 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.blog-post__places-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}

.blog-post__place-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.75rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
}

.blog-post__place-image {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 0.25rem;
}

.blog-post__place-content {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.blog-post__place-name {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.3;
}

.blog-post__place-location {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.blog-post__place-location span {
  margin-right: 0.25rem;
}

.blog-post__place-reason {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-post__citations-section {
  padding: 1.5rem 1rem;
  border-top: 1px solid var(--border-color);
}

.blog-post__citations-title {
  margin: 0 0 1rem 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.blog-post__citations-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.blog-post__citation-item {
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.blog-post__citation-item:last-child {
  border-bottom: none;
}

.blog-post__citation-link {
  display: block;
  color: var(--primary-color);
  text-decoration: none;
  font-size: 0.85rem;
  word-break: break-all;
  transition: opacity 0.2s;
}

.blog-post__citation-link:hover {
  opacity: 0.8;
  text-decoration: underline;
}

.blog-post__footer {
  padding: 1rem;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.blog-post__footer-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 0.375rem;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}

.blog-post__footer-btn:hover {
  background-color: var(--border-color);
}

/* ===== 関連場所セクション（クリック対応） ===== */

.blog-post__places-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.blog-post__places-view-all {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 0.375rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.blog-post__places-view-all:hover {
  background-color: var(--border-color);
  color: var(--primary-color);
}

.blog-post__place-card--clickable {
  transition: all 0.2s;
  position: relative;
}

.blog-post__place-card--clickable:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border-color: var(--primary-color);
}

.blog-post__place-icon {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  font-size: 0.75rem;
}

/* ===== 未ログイン誘導 CTA バナー ===== */

.blog-post__login-cta {
  margin: 2rem 0 1rem;
  padding: 0 1rem;
}

.blog-post__login-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.5rem 1.25rem;
  text-align: center;
}

.blog-post__login-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.5rem 0;
}

.blog-post__login-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0 0 1rem 0;
  line-height: 1.5;
}

.blog-post__login-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.blog-post__login-actions .btn {
  min-width: 140px;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 0.375rem;
  cursor: pointer;
  font-weight: 600;
  transition: opacity 0.2s;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s;
}

.btn-ghost:hover {
  background-color: var(--bg-primary);
  border-color: var(--text-secondary);
}

/* ===== レスポンシブ ===== */

@media (max-width: 480px) {
  .blog-post__login-actions {
    flex-direction: column;
  }

  .blog-post__login-actions .btn {
    min-width: 100%;
  }

  .blog-post__places-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .blog-post__places-view-all {
    align-self: flex-end;
  }
}

@media (max-width: 768px) {
  .blog-post__title {
    font-size: 1.25rem;
  }

  .blog-post__places-grid {
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  }
}

/* === Phase J: 雑誌風レイアウト === */

/* ===== ヘッダー画像（全幅） ===== */
.blog-post__body > img:first-child {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--card-shadow);
  background-color: var(--bg-secondary);
}

@supports not (aspect-ratio: 16 / 9) {
  .blog-post__body > img:first-child {
    max-width: 100%;
    height: auto;
  }
}

/* ===== 本文内の画像スタイル ===== */
.blog-post__body img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius-sm);
  margin: var(--spacing-md) 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .blog-post__body img {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* ===== テーブルスタイル（場所セクション用） ===== */
.blog-post__body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
  font-size: var(--font-size-sm);
  background-color: var(--card-bg);
}

.blog-post__body table th {
  padding: var(--spacing-md);
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: var(--font-weight-semibold);
  text-align: left;
  border-bottom: 2px solid var(--border-color);
  line-height: 1.6;
}

.blog-post__body table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  line-height: 1.6;
  color: var(--text-primary);
}

.blog-post__body table tr:last-child td {
  border-bottom: none;
}

.blog-post__body table tbody tr:hover {
  background-color: var(--bg-secondary);
}

[data-theme="dark"] .blog-post__body table tbody tr:hover {
  background-color: var(--bg-tertiary);
}

/* テーブルレスポンシブ対応（モバイル） */
@media (max-width: 480px) {
  .blog-post__body table {
    font-size: var(--font-size-xs);
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--border-color);
  }

  .blog-post__body table th,
  .blog-post__body table td {
    padding: var(--spacing-sm);
  }
}

/* ===== blockquote（引用・リード文） ===== */
.blog-post__body blockquote {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) var(--spacing-lg);
  border-left: 4px solid var(--accent-primary);
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  font-style: italic;
  line-height: var(--line-height-body);
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}

.blog-post__body blockquote p {
  margin: 0;
  font-weight: var(--font-weight-medium);
}

.blog-post__body blockquote p:not(:last-child) {
  margin-bottom: var(--spacing-sm);
}

/* ===== hr（セクション区切り） ===== */
.blog-post__body hr {
  margin: var(--spacing-2xl) 0;
  border: none;
  border-top: 1px dotted var(--border-color);
  height: 0;
}

/* ===== 見出し h2 ===== */
.blog-post__body h2 {
  position: relative;
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--border-color);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-heading);
  color: var(--text-primary);
}

.blog-post__body h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 2px;
  width: 40px;
  background-color: var(--accent-primary);
}

/* ===== 見出し h3（中見出し） ===== */
.blog-post__body h3 {
  position: relative;
  padding-left: var(--spacing-md);
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-heading);
}

.blog-post__body h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--accent-secondary);
  border-radius: 2px;
}

/* h3 の絵文字プレフィックス強調 */
.blog-post__body h3::first-letter {
  font-size: 1.3em;
}

/* ===== リスト（ul/ol）スタイル ===== */
.blog-post__body ul,
.blog-post__body ol {
  margin: var(--spacing-lg) 0;
  line-height: 1.8;
  padding-left: var(--spacing-xl);
}

.blog-post__body li {
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.blog-post__body ul li::marker {
  color: var(--accent-primary);
  font-weight: var(--font-weight-bold);
}

.blog-post__body ol li::marker {
  color: var(--accent-secondary);
  font-weight: var(--font-weight-semibold);
}

/* ===== リード文（最初のblockquote）特別スタイル ===== */
.blog-post__body blockquote:first-of-type {
  font-size: var(--font-size-lg);
  background-color: transparent;
  padding-left: var(--spacing-lg);
  border-left: 4px solid var(--accent-primary);
}

.blog-post__body blockquote:first-of-type p {
  font-style: italic;
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
}

/* ===== 段落テキスト ===== */
.blog-post__body p {
  line-height: var(--line-height-body);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

/* 段落内の強調テキスト */
.blog-post__body strong,
.blog-post__body b {
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
}

.blog-post__body em,
.blog-post__body i {
  font-style: italic;
}

/* ===== コード（将来対応） ===== */
.blog-post__body code {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 2px 6px;
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
  color: var(--text-primary);
}

.blog-post__body pre {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-md);
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
  font-size: var(--font-size-xs);
  line-height: 1.5;
}

.blog-post__body pre code {
  background-color: transparent;
  border: none;
  padding: 0;
  color: var(--text-primary);
}

/* ===== リンクスタイル ===== */
.blog-post__body a {
  color: var(--accent-secondary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition-base);
}

.blog-post__body a:hover {
  color: var(--accent-primary);
  text-decoration-thickness: 2px;
}

.blog-post__body a:visited {
  color: var(--accent-favorite);
}

/* ===== 画像ローディング状態 ===== */
.blog-post__body img[loading="lazy"] {
  background: linear-gradient(
    90deg,
    var(--bg-secondary) 25%,
    var(--bg-tertiary) 50%,
    var(--bg-secondary) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.blog-post__body img[loading="lazy"]:not([src*="blob"]) {
  min-height: 200px;
}