/*
 * SHILBe コラム専用スタイル
 * 役割: 記事一覧・カテゴリー一覧・記事詳細・目次・関連記事。
 * 記事本文の装飾もこのファイルで管理し、固定ページへ影響させません。
 */

/* ========================================================================== 
   01. コラム一覧の導入・カテゴリー
   ========================================================================== */
.column-intro {
  border-bottom: 1px solid var(--site-color-border);
  background:
    linear-gradient(112deg, rgb(237 244 255 / 78%) 0%, rgb(255 255 255 / 96%) 56%),
    var(--site-color-white);
}

.column-intro__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  align-items: end;
  gap: 80px;
  min-height: 350px;
  padding-block: 68px 62px;
}

.column-intro h1 {
  max-width: 760px;
  margin: 16px 0 0;
  font-size: clamp(38px, 4.2vw, 58px);
  line-height: 1.35;
}

.column-intro__description {
  padding-bottom: 5px;
}

.column-intro__copy,
.column-intro__copy p {
  margin: 22px 0 0;
  color: var(--site-color-muted);
  font-size: 14px;
  line-height: 2;
}

.column-archive {
  padding-block: 42px 112px;
}

.column-categories {
  display: flex;
  overflow-x: auto;
  align-items: center;
  gap: 10px;
  margin-bottom: 52px;
  padding: 2px 2px 8px;
  scrollbar-width: thin;
}

.column-category {
  flex: 0 0 auto;
  border: 1px solid var(--site-color-border-strong);
  border-radius: 999px;
  padding: 8px 18px;
  color: var(--site-color-muted);
  background: var(--site-color-white);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
  text-decoration: none;
  transition: border-color 180ms ease, color 180ms ease, background-color 180ms ease;
}

.column-category:hover,
.column-category:focus-visible,
.column-category.is-current {
  border-color: var(--site-color-primary);
  color: var(--site-color-primary);
  background: var(--site-color-surface-blue);
}

/* ========================================================================== 
   02. 注目記事・記事カード
   ========================================================================== */
.column-featured {
  display: grid;
  overflow: hidden;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  border: 1px solid var(--site-color-border);
  border-radius: var(--site-radius-lg);
  background: var(--site-color-white);
  box-shadow: var(--site-shadow-soft);
}

.column-featured__visual,
.column-card__visual {
  display: block;
  min-height: 100%;
  color: inherit;
  background: var(--site-color-surface);
  text-decoration: none;
}

.column-featured__visual > .column-placeholder-visual {
  height: 100%;
}

.column-featured__visual img,
.column-card__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.column-featured__content {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 50px;
}

.column-featured__content > p:not(.site-kicker) {
  display: -webkit-box;
  overflow: hidden;
  margin: 18px 0 24px;
  color: var(--site-color-muted);
  font-size: 14px;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.column-featured h2 {
  margin: 16px 0 0;
  font-size: clamp(25px, 2.4vw, 34px);
  line-height: 1.45;
}

.column-featured h2 a,
.column-card h3 a {
  text-decoration: none;
}

.column-featured h2 a {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.column-featured h2 a:hover,
.column-card h3 a:hover {
  color: var(--site-color-primary);
}


.column-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  color: var(--site-color-subtle);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.column-card__meta a,
.column-card__meta span {
  color: var(--site-color-primary);
  text-decoration: none;
}

.column-read-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--site-color-primary);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.column-read-link .dashicons {
  font-size: 17px;
  transition: transform 180ms ease;
}

.column-read-link:hover .dashicons {
  transform: translateX(3px);
}

.column-articles {
  padding-top: 96px;
}

.column-section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 34px;
}

.column-section-heading h2 {
  margin: 10px 0 0;
  font-size: clamp(28px, 3vw, 38px);
}

.column-section-heading > p {
  max-width: 470px;
  margin-bottom: 5px;
  color: var(--site-color-muted);
  font-size: 13px;
}

.column-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.column-card {
  display: flex;
  overflow: hidden;
  min-width: 0;
  flex-direction: column;
  border: 1px solid var(--site-color-border);
  border-radius: var(--site-radius);
  background: var(--site-color-white);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.column-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--site-shadow-soft);
}

.column-card__visual {
  min-height: 210px;
  aspect-ratio: 16 / 9;
}

.column-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: flex-start;
  padding: 26px;
}

.column-card h3 {
  margin: 14px 0 12px;
  font-size: 20px;
}

.column-card__body > p {
  margin-bottom: 20px;
  color: var(--site-color-muted);
  font-size: 13px;
}

.column-card__body > .column-read-link {
  margin-top: auto;
}

.column-pagination {
  margin-top: 56px;
}

.column-pagination .nav-links {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.column-pagination .page-numbers {
  display: grid;
  min-width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--site-color-border);
  border-radius: 6px;
  padding-inline: 10px;
  color: var(--site-color-muted);
  text-decoration: none;
}

.column-pagination .page-numbers.current,
.column-pagination a.page-numbers:hover {
  border-color: var(--site-color-primary);
  color: var(--site-color-white);
  background: var(--site-color-primary);
}

.column-empty {
  border: 1px solid var(--site-color-border);
  border-radius: var(--site-radius-lg);
  padding: 70px;
  background: linear-gradient(135deg, var(--site-color-white), var(--site-color-surface));
}

.column-empty h2 {
  margin: 10px 0 12px;
  font-size: 30px;
}

.column-empty p:not(.site-kicker) {
  color: var(--site-color-muted);
}

/* ========================================================================== 
   03. 記事詳細のヘッダー・カバー
   ========================================================================== */
.column-article-header {
  background: linear-gradient(180deg, #f7faff 0%, var(--site-color-white) 100%);
}

.column-article-header__inner {
  max-width: 980px;
  padding-block: 58px 50px;
}

.column-article-header__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 38px;
  color: var(--site-color-subtle);
  font-size: 12px;
  font-weight: 700;
}

.column-article-header__meta a {
  color: var(--site-color-primary);
  text-decoration: none;
}

.column-article-header h1 {
  max-width: 900px;
  margin: 18px 0 0;
  font-size: clamp(34px, 4.2vw, 54px);
  line-height: 1.45;
}

.column-article-header__lead {
  max-width: 780px;
  margin: 22px 0 0;
  color: var(--site-color-muted);
  font-size: 15px;
}

.column-article-cover {
  max-width: 980px;
  margin-top: 6px;
}

.column-article-cover > img,
.column-placeholder-visual--cover {
  width: 100%;
  max-height: 560px;
  border: 1px solid var(--site-color-border);
  border-radius: var(--site-radius-lg);
  object-fit: cover;
  box-shadow: var(--site-shadow-soft);
}

.column-placeholder-visual--cover {
  min-height: 420px;
  padding: 52px;
}

/* ========================================================================== 
   04. 記事本文・目次・補助導線
   ========================================================================== */
.column-article-layout {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(220px, 280px);
  align-items: start;
  justify-content: space-between;
  gap: 72px;
  padding-block: 82px 112px;
}

.column-article-main {
  min-width: 0;
}

.column-article-body {
  color: #1a2946;
  font-size: 16px;
  line-height: 2.05;
}

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

.column-article-body h2 {
  margin: 72px 0 24px;
  border-bottom: 1px solid var(--site-color-border-strong);
  padding: 0 0 16px;
  font-size: 30px;
  scroll-margin-top: 110px;
}

.column-article-body h3 {
  margin: 48px 0 18px;
  border-left: 3px solid var(--site-color-primary);
  padding-left: 16px;
  font-size: 23px;
  scroll-margin-top: 110px;
}

.column-article-body h4 {
  margin: 36px 0 14px;
  font-size: 18px;
}

.column-article-body p,
.column-article-body ul,
.column-article-body ol,
.column-article-body blockquote,
.column-article-body figure,
.column-article-body table {
  margin-bottom: 28px;
}

.column-article-body a {
  color: var(--site-color-primary);
  text-underline-offset: 3px;
}

.column-article-body ul,
.column-article-body ol {
  padding-left: 1.5em;
}

.column-article-body li + li {
  margin-top: 8px;
}

.column-article-body blockquote {
  margin-inline: 0;
  border-left: 4px solid var(--site-color-primary);
  padding: 22px 26px;
  color: var(--site-color-muted);
  background: var(--site-color-surface);
}

.column-article-body img {
  border-radius: var(--site-radius);
}

.column-article-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.column-article-body th,
.column-article-body td {
  border: 1px solid var(--site-color-border);
  padding: 13px 16px;
  text-align: left;
}

.column-article-body th {
  background: var(--site-color-surface-blue);
}

.column-article-sidebar {
  position: sticky;
  top: 24px;
  display: grid;
  gap: 22px;
}

.column-toc,
.column-sidebar-cta {
  border: 1px solid var(--site-color-border);
  border-radius: var(--site-radius);
  padding: 26px;
  background: var(--site-color-white);
}

.column-toc__label {
  margin-bottom: 4px;
  color: var(--site-color-primary);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.column-toc > strong {
  font-size: 15px;
}

.column-toc ol {
  display: grid;
  gap: 11px;
  margin: 18px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--site-color-border);
  list-style: none;
  counter-reset: toc;
}

.column-toc li {
  counter-increment: toc;
}

.column-toc li a {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 6px;
  color: var(--site-color-muted);
  font-size: 12px;
  line-height: 1.65;
  text-decoration: none;
}

.column-toc li a::before {
  color: var(--site-color-primary);
  content: counter(toc, decimal-leading-zero);
  font-size: 10px;
  font-weight: 800;
}

.column-toc li.is-subheading a {
  padding-left: 12px;
}

.column-toc li a:hover {
  color: var(--site-color-primary);
}

.column-sidebar-cta {
  background: linear-gradient(145deg, #f5f9ff, #eaf3ff);
}

.column-sidebar-cta > strong {
  display: block;
  margin: 8px 0 12px;
  font-size: 18px;
  line-height: 1.6;
}

.column-sidebar-cta > p:not(.site-kicker) {
  margin-bottom: 18px;
  color: var(--site-color-muted);
  font-size: 12px;
}

.column-article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--site-color-border);
}

.column-article-tags a {
  border-radius: 999px;
  padding: 5px 12px;
  color: var(--site-color-primary);
  background: var(--site-color-surface-blue);
  font-size: 11px;
  text-decoration: none;
}

.column-article-back {
  margin-top: 32px;
}

/* ========================================================================== 
   05. 関連記事
   ========================================================================== */
.column-related {
  border-top: 1px solid var(--site-color-border);
  padding-block: 88px 100px;
  background: var(--site-color-surface);
}

.column-related .column-card {
  background: var(--site-color-white);
}

/* ========================================================================== 
   99. レスポンシブ調整
   ========================================================================== */
@media (max-width: 1080px) {
  .column-intro__inner {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 26px;
    min-height: auto;
  }

  .column-intro__description {
    max-width: 700px;
  }

  .column-featured {
    grid-template-columns: minmax(0, 1fr) minmax(330px, 0.9fr);
  }

  .column-featured__content {
    padding: 38px;
  }

  .column-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .column-article-layout {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 44px;
  }
}

@media (max-width: 767px) {
  .column-intro__inner {
    gap: 20px;
    padding-block: 48px;
  }

  .column-intro h1 {
    font-size: 34px;
  }

  .column-intro h1 br {
    display: none;
  }

  .column-intro__copy,
  .column-intro__copy p {
    margin-top: 16px;
  }

  .column-archive {
    padding-block: 30px 76px;
  }

  .column-categories {
    width: 100vw;
    margin-right: calc(50% - 50vw);
    margin-bottom: 34px;
    margin-left: calc(50% - 50vw);
    padding-inline: 5%;
  }

  .column-featured {
    grid-template-columns: 1fr;
  }

  .column-placeholder-visual {
    min-height: 230px;
    padding: 30px;
  }

  .column-featured__content {
    padding: 30px 24px 34px;
  }

  .column-featured h2 {
    font-size: 25px;
  }

  .column-articles {
    padding-top: 68px;
  }

  .column-section-heading {
    display: grid;
    gap: 16px;
    margin-bottom: 26px;
  }

  .column-card-grid {
    grid-template-columns: 1fr;
  }

  .column-card__visual {
    min-height: 190px;
  }

  .column-empty {
    padding: 42px 26px;
  }

  .column-article-header__inner {
    padding-block: 42px 34px;
  }

  .column-article-header__meta {
    margin-top: 28px;
  }

  .column-article-header h1 {
    font-size: 32px;
  }

  .column-article-cover {
    width: 90%;
  }

  .column-placeholder-visual--cover {
    min-height: 240px;
  }

  .column-article-layout {
    display: flex;
    flex-direction: column;
    gap: 42px;
    padding-block: 58px 78px;
  }

  .column-article-main {
    width: 100%;
  }

  .column-article-body h2 {
    margin-top: 56px;
    font-size: 25px;
  }

  .column-article-body h3 {
    margin-top: 38px;
    font-size: 20px;
  }

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

  .column-article-sidebar {
    position: static;
    width: 100%;
  }

  .column-toc {
    order: -1;
  }

  .column-related {
    padding-block: 70px 76px;
  }
}