/* ===================================================
   Blog / Column Page Styles
   Lumina 高崎本店
=================================================== */

/* ---------- Page Hero (shared with menu.css) ---------- */
.page-hero {
  position: relative;
  height: 40vh;
  min-height: 300px;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-mid) 60%, var(--gold-dark) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.page-hero::before {
  content: attr(data-bg-text);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-sub);
  font-size: 10rem;
  color: rgba(201, 169, 110, 0.06);
  white-space: nowrap;
  pointer-events: none;
  letter-spacing: 0.3em;
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26, 22, 20, 0.4);
}

.page-hero-content {
  position: relative;
  z-index: 2;
}

.page-hero-content h1 {
  font-family: var(--font-main);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--white);
  font-weight: 300;
  letter-spacing: 0.15em;
  margin-bottom: 0.8rem;
}

.page-hero-content p {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  line-height: 1.8;
}

.breadcrumb {
  position: absolute;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
  white-space: nowrap;
}

.breadcrumb a,
.breadcrumb span {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.05em;
  transition: color var(--transition);
}

.breadcrumb a:hover { color: var(--gold); }

/* ---------- Blog List Layout ---------- */
.blog-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 2rem;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 4rem;
  align-items: start;
}

/* ---------- Category Filter Bar ---------- */
.category-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 3rem;
}

.cat-btn {
  padding: 0.45rem 1.1rem;
  border: 1px solid var(--gold-light);
  background: transparent;
  color: var(--warm-gray);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: var(--transition);
  border-radius: 2px;
}

.cat-btn:hover,
.cat-btn.active {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--white);
}

/* ---------- Blog Grid ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

/* ---------- Blog Card ---------- */
.blog-card {
  background: var(--white);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.blog-card-img {
  overflow: hidden;
  aspect-ratio: 16/9;
  position: relative;
}

.blog-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.blog-card:hover .blog-card-img img {
  transform: scale(1.07);
}

.blog-card-img .card-category {
  position: absolute;
  top: 0.8rem;
  left: 0.8rem;
  background: var(--gold);
  color: var(--white);
  font-size: 0.68rem;
  padding: 0.25rem 0.7rem;
  letter-spacing: 0.1em;
  z-index: 1;
}

.blog-card-body {
  padding: 1.4rem 1.5rem 1.6rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.7rem;
}

.blog-card-date {
  font-size: 0.75rem;
  color: var(--warm-gray);
  letter-spacing: 0.05em;
  font-family: var(--font-sub);
}

.blog-card-author {
  font-size: 0.72rem;
  color: var(--warm-gray);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.blog-card-author i { color: var(--gold); font-size: 0.65rem; }

.blog-card h2,
.blog-card-title {
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  margin-bottom: 0.8rem;
  letter-spacing: 0.03em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-excerpt {
  font-size: 0.82rem;
  color: var(--warm-gray);
  line-height: 1.8;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 1.2rem;
}

.blog-card-read-more {
  font-size: 0.78rem;
  color: var(--gold);
  letter-spacing: 0.12em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: auto;
  transition: gap var(--transition);
}

.blog-card:hover .blog-card-read-more {
  gap: 0.7rem;
}

/* ---------- Featured (large) Card ---------- */
.blog-card.featured {
  grid-column: span 2;
  flex-direction: row;
}

.blog-card.featured .blog-card-img {
  width: 55%;
  aspect-ratio: unset;
  flex-shrink: 0;
}

.blog-card.featured .blog-card-body {
  padding: 2rem 2rem 2rem 2.5rem;
}

.blog-card.featured .blog-card-title {
  font-size: 1.2rem;
  -webkit-line-clamp: 3;
}

.blog-card.featured .blog-card-excerpt {
  -webkit-line-clamp: 4;
}

/* ---------- Pagination ---------- */
.blog-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 3rem;
}

.page-btn {
  width: 38px;
  height: 38px;
  border: 1px solid var(--ivory-dark);
  background: var(--white);
  color: var(--warm-gray);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  font-family: var(--font-sub);
}

.page-btn:hover,
.page-btn.active {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--white);
}

.page-btn.prev,
.page-btn.next {
  width: auto;
  padding: 0 1rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

/* ---------- Sidebar ---------- */
.blog-sidebar {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.sidebar-widget {
  background: var(--white);
  box-shadow: var(--shadow-soft);
}

.sidebar-widget-head {
  background: var(--dark);
  padding: 0.9rem 1.3rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.sidebar-widget-head h3 {
  font-family: var(--font-sub);
  font-size: 0.78rem;
  letter-spacing: 0.25em;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 400;
}

.sidebar-widget-head i {
  color: var(--gold);
  font-size: 0.8rem;
}

.sidebar-widget-body {
  padding: 1.2rem 1.3rem;
}

/* Search */
.sidebar-search {
  display: flex;
  border: 1px solid var(--ivory-dark);
  overflow: hidden;
}

.sidebar-search input {
  flex: 1;
  padding: 0.7rem 1rem;
  border: none;
  outline: none;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  background: transparent;
  color: var(--dark);
}

.sidebar-search button {
  background: var(--gold);
  border: none;
  padding: 0 1rem;
  color: var(--white);
  cursor: pointer;
  transition: background var(--transition);
  font-size: 0.9rem;
}

.sidebar-search button:hover { background: var(--gold-dark); }

/* Categories */
.sidebar-cats li {
  border-bottom: 1px solid var(--ivory-dark);
}

.sidebar-cats li:last-child { border-bottom: none; }

.sidebar-cats a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 0;
  font-size: 0.85rem;
  color: var(--dark-mid);
  transition: color var(--transition);
}

.sidebar-cats a:hover { color: var(--gold); }

.sidebar-cats .cat-count {
  font-family: var(--font-sub);
  font-size: 0.8rem;
  color: var(--warm-gray);
}

/* Recent posts */
.sidebar-recent-item {
  display: flex;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--ivory-dark);
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

.sidebar-recent-item:last-child { border-bottom: none; }

.sidebar-recent-item:hover .sidebar-recent-title { color: var(--gold); }

.sidebar-recent-thumb {
  width: 64px;
  height: 48px;
  object-fit: cover;
  flex-shrink: 0;
}

.sidebar-recent-info { flex: 1; }

.sidebar-recent-title {
  font-size: 0.8rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
  margin-bottom: 0.3rem;
}

.sidebar-recent-date {
  font-size: 0.7rem;
  color: var(--warm-gray);
  font-family: var(--font-sub);
}

/* Tags */
.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag-chip {
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--ivory-dark);
  font-size: 0.75rem;
  color: var(--warm-gray);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.tag-chip:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* Sidebar CTA */
.sidebar-cta {
  background: linear-gradient(135deg, var(--gold-dark), var(--gold));
  padding: 1.8rem 1.5rem;
  text-align: center;
}

.sidebar-cta h4 {
  font-family: var(--font-main);
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.sidebar-cta p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
  margin-bottom: 1.2rem;
}

.sidebar-cta .btn-white {
  width: 100%;
  background: var(--white);
  color: var(--gold-dark);
  font-size: 0.82rem;
  padding: 0.7rem 1rem;
}

/* ============================================================
   Blog Detail Page
============================================================ */

.detail-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 2rem;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 4rem;
  align-items: start;
}

/* Article */
.blog-article {
  background: var(--white);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.article-eyecatch {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}

.article-header {
  padding: 2.5rem 3rem 2rem;
  border-bottom: 1px solid var(--ivory-dark);
}

.article-category {
  display: inline-block;
  background: var(--gold);
  color: var(--white);
  font-size: 0.72rem;
  padding: 0.25rem 0.8rem;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.article-title {
  font-family: var(--font-main);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0.05em;
  margin-bottom: 1.2rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--warm-gray);
}

.article-meta-item i { color: var(--gold); font-size: 0.75rem; }

.article-author-block {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.2rem 3rem;
  background: var(--ivory);
  border-bottom: 1px solid var(--ivory-dark);
}

.author-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--gold-light);
  flex-shrink: 0;
}

.author-avatar-placeholder {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--gold-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 1.2rem;
  flex-shrink: 0;
  border: 2px solid var(--gold-light);
}

.author-info .author-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--dark);
  margin-bottom: 0.15rem;
}

.author-info .author-role {
  font-size: 0.72rem;
  color: var(--warm-gray);
  letter-spacing: 0.05em;
}

/* Article body */
.article-body {
  padding: 3rem;
  font-size: 0.92rem;
  line-height: 2;
  color: var(--dark-mid);
}

.article-body h2 {
  font-family: var(--font-main);
  font-size: 1.25rem;
  font-weight: 400;
  border-left: 3px solid var(--gold);
  padding: 0.3rem 0 0.3rem 1rem;
  margin: 2.5rem 0 1.2rem;
  letter-spacing: 0.05em;
}

.article-body h3 {
  font-family: var(--font-main);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--dark);
  margin: 2rem 0 0.8rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px dashed var(--gold-light);
  letter-spacing: 0.05em;
}

.article-body p {
  margin-bottom: 1.4rem;
}

.article-body ul,
.article-body ol {
  list-style: none;
  margin: 1rem 0 1.5rem;
}

.article-body ul li {
  padding-left: 1.4rem;
  position: relative;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
}

.article-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  background: var(--gold);
  transform: rotate(45deg);
}

.article-body ol {
  counter-reset: ol-counter;
}

.article-body ol li {
  counter-increment: ol-counter;
  padding-left: 2rem;
  position: relative;
  margin-bottom: 0.6rem;
}

.article-body ol li::before {
  content: counter(ol-counter);
  position: absolute;
  left: 0;
  width: 1.4rem;
  height: 1.4rem;
  background: var(--gold);
  color: var(--white);
  font-family: var(--font-sub);
  font-size: 0.78rem;
  display: flex;
  align-items: center;
  justify-content: center;
  top: 0.15em;
}

.article-body .highlight-box {
  background: var(--ivory);
  border-left: 4px solid var(--gold);
  padding: 1.2rem 1.5rem;
  margin: 1.5rem 0;
  font-size: 0.9rem;
  line-height: 1.9;
}

.article-body .highlight-box strong {
  color: var(--gold-dark);
}

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

.article-body strong { color: var(--dark); }

/* Tags in article */
.article-tags {
  padding: 1.5rem 3rem;
  border-top: 1px solid var(--ivory-dark);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.article-tags .tags-label {
  font-size: 0.78rem;
  color: var(--warm-gray);
  letter-spacing: 0.1em;
  margin-right: 0.3rem;
}

/* Share */
.article-share {
  padding: 1.5rem 3rem 2rem;
  border-top: 1px solid var(--ivory-dark);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.share-label {
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  color: var(--warm-gray);
}

.share-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1.1rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  color: var(--white);
}

.share-btn.twitter { background: #1DA1F2; }
.share-btn.line { background: #06C755; }
.share-btn.copy { background: var(--warm-gray); }

.share-btn:hover { opacity: 0.85; transform: translateY(-1px); }

/* Related Posts */
.related-posts {
  padding: 4rem 2rem;
  background: var(--ivory);
}

.related-posts-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

/* Prev/Next Navigation */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 2rem 3rem;
  border-top: 1px solid var(--ivory-dark);
}

.article-nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem;
  background: var(--ivory);
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
  border: 1px solid transparent;
}

.article-nav-link:hover {
  border-color: var(--gold-light);
  background: var(--white);
}

.article-nav-link.next { text-align: right; }

.nav-direction {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.article-nav-link.next .nav-direction { justify-content: flex-end; }

.nav-title {
  font-size: 0.83rem;
  color: var(--dark-mid);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* active-page */
.active-page {
  color: var(--gold) !important;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .blog-layout,
  .detail-layout {
    grid-template-columns: 1fr;
  }

  .blog-sidebar {
    position: static;
  }

  .blog-card.featured {
    flex-direction: column;
  }

  .blog-card.featured .blog-card-img {
    width: 100%;
    aspect-ratio: 16/9;
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }

  .blog-card.featured {
    grid-column: span 1;
  }

  .article-header,
  .article-body,
  .article-tags,
  .article-share,
  .article-nav,
  .article-author-block {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  .article-nav {
    grid-template-columns: 1fr;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .page-hero::before {
    font-size: 4rem;
  }
}