/* ==========================================================
   Re'ink Column — 一覧 / 詳細 / トップ最新コラム
   既存テーマ（style.css / subpage-tone.css）のトーンに合わせる
   ========================================================== */

/* ---------- 共通：セクション ---------- */
.column-sec {
  position: relative;
  padding: 80px 0 var(--sec-pad);
  background: var(--color-bg);
}

/* ---------- カテゴリーフィルター（一覧上部） ---------- */
.column-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-bottom: 48px;
}

.column-filter-item {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.1em;
  font-weight: 300;
  color: var(--color-sub);
  background: transparent;
  transition: var(--t);
  line-height: 1.6;
}

.column-filter-item:hover,
.column-filter-item.is-active {
  background: var(--color-text);
  border-color: var(--color-text);
  color: #fff;
}

/* ---------- カードグリッド ---------- */
.column-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 32px;
}

.column-card {
  min-width: 0;
}

.column-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.column-thumb {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}

.column-thumb img,
.column-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease, filter 0.6s ease;
  filter: grayscale(12%);
}

.column-card-link:hover .column-thumb img {
  transform: scale(1.04);
  filter: grayscale(0%);
}

.column-thumb-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-s);
}

.column-thumb-placeholder img {
  width: 34%;
  height: auto;
  max-height: 44%;
  object-fit: contain;
  opacity: 0.35;
  filter: none;
  transform: none !important;
}

.column-card-body {
  padding: 18px 0 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.column-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--color-muted);
  font-weight: 300;
  line-height: 1.6;
}

.column-cat {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--color-border);
  color: var(--color-sub);
  font-family: var(--font-ja);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.6;
  white-space: nowrap;
}

a.column-cat-link:hover {
  background: var(--color-text);
  border-color: var(--color-text);
  color: #fff;
}

.column-date {
  font-variant-numeric: tabular-nums;
}

.column-card-title {
  font-family: var(--font-ja);
  font-size: 16px;
  font-weight: 300;
  letter-spacing: 0.06em;
  line-height: 1.8;
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.3s ease;
}

.column-card-link:hover .column-card-title {
  color: var(--color-accent-l);
}

.column-empty {
  padding: 60px 0;
  text-align: center;
  font-size: 16px;
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--color-sub);
}

/* ---------- ページ送り ---------- */
.column-pagination {
  margin-top: 72px;
}

.column-pagination-list {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.column-pagination-list li {
  list-style: none;
}

.column-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--color-border);
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.1em;
  font-weight: 300;
  color: var(--color-sub);
  transition: var(--t);
  text-decoration: none;
}

.column-pagination a.page-numbers:hover,
.column-pagination .page-numbers.current {
  background: var(--color-text);
  border-color: var(--color-text);
  color: #fff;
}

.column-pagination .page-numbers.dots {
  border-color: transparent;
}

.column-pagination .page-numbers.prev,
.column-pagination .page-numbers.next {
  font-family: var(--font-ja);
  font-size: 13px;
  letter-spacing: 0.14em;
  padding: 0 18px;
}

/* ---------- 詳細ページ ---------- */
.column-single-inner {
  max-width: 800px;
  margin: 0 auto;
}

.column-single-head {
  margin-bottom: 40px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}

.column-single-head .column-meta {
  margin-bottom: 18px;
  font-size: 13px;
}

.column-single-title {
  font-family: var(--font-ja);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 300;
  letter-spacing: 0.08em;
  line-height: 1.7;
  color: var(--color-text);
}

.column-eyecatch {
  margin: 0 0 48px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.column-eyecatch {
  aspect-ratio: 16 / 9;
}

.column-eyecatch img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 本文（ブロックエディタ出力） */
.column-body {
  font-size: 16px;
  font-weight: 300;
  line-height: 2.1;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.column-body > * + * {
  margin-top: 1.6em;
}

.column-body h2,
.column-body h3,
.column-body h4 {
  font-family: var(--font-ja);
  font-weight: 300;
  letter-spacing: 0.1em;
  line-height: 1.7;
  color: var(--color-text);
}

.column-body h2 {
  font-size: clamp(20px, 2.4vw, 24px);
  margin-top: 2.6em;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.column-body h3 {
  font-size: clamp(18px, 2vw, 20px);
  margin-top: 2.2em;
  padding-left: 14px;
  border-left: 1px solid var(--color-text);
}

.column-body h4 {
  font-size: 17px;
  margin-top: 2em;
}

.column-body p {
  margin-bottom: 0;
}

.column-body a {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.column-body a:hover {
  color: var(--color-accent-l);
}

.column-body strong {
  font-weight: 600;
}

.column-body ul,
.column-body ol {
  padding-left: 1.6em;
}

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

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

.column-body li + li {
  margin-top: 0.4em;
}

.column-body img {
  max-width: 100%;
  height: auto;
}

.column-body figure {
  margin-left: 0;
  margin-right: 0;
}

.column-body figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-sub);
  letter-spacing: 0.06em;
  text-align: center;
}

.column-body blockquote {
  padding: 20px 28px;
  border-left: 1px solid var(--color-text);
  background: var(--color-bg-s);
  color: var(--color-sub);
}

.column-body blockquote p {
  margin: 0;
}

.column-body hr {
  border: 0;
  border-top: 1px solid var(--color-border);
}

.column-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.column-body th,
.column-body td {
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.column-body th {
  background: var(--color-bg-s);
  font-weight: 300;
}

.column-body .wp-block-table {
  overflow-x: auto;
}

.column-body .wp-block-button__link {
  border-radius: 0;
  background: var(--color-text);
  color: #fff;
  font-size: 15px;
  letter-spacing: 0.12em;
}

.column-body .wp-block-embed iframe {
  max-width: 100%;
}

.column-single-foot {
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.column-back-btn {
  gap: 12px;
  font-family: var(--font-ja);
  letter-spacing: 0.14em;
  min-width: 220px;
}

.column-back-arrow {
  display: inline-block;
  transition: transform 0.3s ease;
}

.column-back-btn:hover .column-back-arrow {
  transform: translateX(-4px);
}

.page-hero-breadcrumb-current {
  text-transform: none;
  letter-spacing: 0.08em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 50vw;
}

/* ---------- 記事内 CTA（Re'ink のご案内） ---------- */
.column-cta {
  margin: 72px 0 0;
  padding: 44px 44px 40px;
  background: var(--color-bg-s);
  border: 1px solid var(--color-border);
}

.column-body > .column-cta:first-child {
  margin-top: 0;
}

.column-cta-en {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--color-sub);
  margin: 0 0 14px;
  line-height: 1.6;
}

.column-body .column-cta-title {
  font-family: var(--font-ja);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 300;
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: var(--color-text);
  margin: 0 0 18px;
  padding: 0;
  border: 0;
}

.column-cta-text {
  font-size: 15px;
  font-weight: 300;
  line-height: 2;
  letter-spacing: 0.05em;
  color: var(--color-sub);
  margin: 0 0 28px;
}

.column-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.column-body .column-cta-btn,
.column-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 260px;
  padding: 15px 28px;
  border: 1px solid var(--color-text);
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-ja);
  font-size: 15px;
  font-weight: 300;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-decoration: none !important;
  transition: var(--t);
}

.column-body .column-cta-btn:hover,
.column-cta-btn:hover {
  background: var(--color-text);
  color: #fff;
}

.column-body .column-cta-btn-primary,
.column-cta-btn-primary {
  background: var(--color-text);
  color: #fff;
}

.column-body .column-cta-btn-primary:hover,
.column-cta-btn-primary:hover {
  background: var(--color-accent-l);
  border-color: var(--color-accent-l);
  color: #fff;
}

.column-cta-icon {
  width: 19px;
  height: 19px;
  flex-shrink: 0;
}

.column-cta-more {
  margin: 0;
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.06em;
  line-height: 1.8;
}

.column-body .column-cta-more a {
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
  transition: var(--t);
}

.column-body .column-cta-more a:hover {
  border-bottom-color: var(--color-text);
  color: var(--color-text);
}

/* ---------- トップページ：最新コラム ---------- */
.top-column {
  padding: var(--sec-pad) 0;
  background: var(--color-bg);
}

.top-column .column-thumb {
  background: var(--color-bg-s);
}

.top-column-more {
  margin-top: 64px;
  text-align: center;
}

.column-more-btn {
  font-family: var(--font-ja);
  letter-spacing: 0.14em;
  min-width: 240px;
}

/* ---------- レスポンシブ ---------- */
@media (max-width: 1024px) {
  .column-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px 24px;
  }
}

@media (max-width: 768px) {
  .column-sec {
    padding: 56px 0 var(--sec-pad);
  }

  .column-filter {
    margin-bottom: 32px;
    gap: 8px;
  }

  .column-filter-item {
    font-size: 12px;
    padding: 7px 14px;
  }

  .column-card-title {
    font-size: 15px;
  }

  .column-single-title {
    font-size: 21px;
  }

  .column-body {
    font-size: 15px;
    line-height: 2;
  }

  .column-eyecatch {
    margin-bottom: 36px;
  }

  .column-single-foot {
    margin-top: 48px;
  }

  .column-pagination {
    margin-top: 48px;
  }

  .top-column-more {
    margin-top: 44px;
  }

  .column-cta {
    margin-top: 56px;
    padding: 32px 22px 28px;
  }

  .column-cta-text {
    font-size: 14px;
    margin-bottom: 24px;
  }

  .column-cta-actions {
    gap: 10px;
  }

  .column-cta-btn {
    width: 100%;
    min-width: 0;
    font-size: 14px;
    padding: 14px 18px;
  }

  .column-cta-more {
    font-size: 13px;
  }
}

@media (max-width: 600px) {
  .column-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .column-single-head .column-meta,
  .column-meta {
    font-size: 12px;
  }

  .page-hero-breadcrumb-current {
    max-width: 40vw;
  }
}