/* ============================================
   YANAGASE TECH INC. - News Styles
   News Index & Article
   ============================================ */

/* --- Breadcrumb --- */
.breadcrumb {
  margin-bottom: var(--space-4);
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  list-style: none;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

.breadcrumb li + li::before {
  content: '/';
  margin: 0 4px;
  color: var(--color-border);
}

.breadcrumb a {
  color: var(--color-text-light);
  transition: opacity 0.3s;
}

.breadcrumb a:hover {
  opacity: 0.7;
}

.breadcrumb [aria-current="page"] {
  color: var(--color-text);
}

/* --- Article Footer Nav --- */
.article-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.article-nav-link {
  font-family: var(--font-ja);
  font-size: var(--text-sm);
  color: var(--color-text-light);
  transition: opacity 0.3s;
}

.article-nav-link:hover {
  opacity: 0.7;
}

/* 前後記事のページが存在しない場合は非表示（レイアウトは維持） */
.article-nav-link:not([href]) {
  visibility: hidden;
}

.article-nav-back {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  transition: opacity 0.3s;
}

.article-nav-back:hover {
  opacity: 0.7;
}

/* --- News Index --- */
.news-index {
  padding: var(--space-7) 0;
}

.news-index .page-title {
  font-family: var(--font-ja);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: 0;
  margin-bottom: var(--space-5);
  color: var(--color-heading);
}

.news-index-list {
  border-top: 1px solid var(--color-border);
}

.news-index-item {
  border-bottom: 1px solid var(--color-border);
}

.news-index-item a {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  transition: opacity 0.3s;
}

.news-index-item a:hover {
  opacity: 0.7;
}

.news-index-item-date {
  font-family: var(--font-en);
  font-size: var(--text-sm);
  color: var(--color-text-light);
  letter-spacing: 0;
  flex-shrink: 0;
}

.news-index-item-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.7;
  color: var(--color-heading);
}

/* --- Pagination --- */
.pagination {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-5);
}

.pagination-item {
  font-family: var(--font-en);
  font-size: var(--text-sm);
  letter-spacing: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  transition: opacity 0.3s;
}

.pagination-item:hover {
  opacity: 0.7;
}

.pagination-item.is-current {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.pagination-next {
  width: auto;
  padding: 0 var(--space-2);
  margin-left: var(--space-1);
}

/* リンク先のあるページが存在しない場合はナビ全体を非表示 */
.pagination:not(:has(a[href])) {
  display: none;
}

/* --- News Article --- */
.news-article {
  padding: var(--space-7) 0;
}

.news-article .container {
  max-width: 800px;
}

.article-header {
  margin-bottom: 40px;
}

.article-title {
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 12px;
  color: var(--color-heading);
}

.article-date {
  font-family: var(--font-en);
  font-size: var(--text-sm);
  color: var(--color-text-light);
  letter-spacing: 0;
}

/* Article Body - Rich text styling */
.article-body {
  font-size: 15px;
  line-height: 2;
}

.article-body p {
  margin-bottom: 1.5em;
}

.article-body h2 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.5;
  margin-top: 2.5em;
  margin-bottom: 0.8em;
  padding-bottom: var(--space-1);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-heading);
}

.article-body h3 {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.5;
  margin-top: 2em;
  margin-bottom: 0.6em;
  color: var(--color-heading);
}

.article-body h4 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin-top: 1.8em;
  margin-bottom: 0.5em;
  color: var(--color-heading);
}

.article-body h5 {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  color: var(--color-heading);
}

.article-body h6 {
  font-size: var(--text-sm);
  line-height: 1.5;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  color: var(--color-text-light);
}

.article-body img {
  width: 100%;
  margin: 1.5em 0;
}

.article-body blockquote {
  margin: 1.5em 0;
  padding: 20px 24px;
  border-left: 3px solid var(--color-border);
  background: var(--color-bg-light);
  font-size: var(--text-sm);
  line-height: 1.9;
  color: var(--color-text-light);
}

.article-body ul,
.article-body ol {
  margin: 1em 0;
  padding-left: 1.5em;
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 0.4em;
  line-height: 1.8;
}

.article-body a {
  color: var(--color-primary);
  text-decoration: underline;
}

.article-body a:hover {
  opacity: 0.7;
}

.article-body strong {
  font-weight: 700;
}

/* ============================================
   Responsive - News
   ============================================ */
@media (max-width: 768px) {
  .news-index {
    padding: 56px 0;
  }

  .news-index .page-title {
    font-size: 28px;
    margin-bottom: var(--space-4);
  }

  .news-index-item-title {
    font-size: var(--text-sm);
  }

  .news-article {
    padding: 56px 0;
  }

  .article-title {
    font-size: var(--text-lg);
  }

  .article-body {
    font-size: var(--text-sm);
  }

  .article-body h2 {
    font-size: 19px;
  }

  .article-body h3 {
    font-size: 17px;
  }

  .article-body h4 {
    font-size: 15px;
  }
}