/* ========================================
   コラム個別ページ
   ======================================== */

/* --- Layout --- */
.column-single {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-xl);
  align-items: start;
}

@media (max-width: 1023px) {
  .column-single {
    display: block;
  }
}

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

.column-single__sidebar {
  position: sticky;
  top: 100px;
}

@media (max-width: 1023px) {
  .column-single__sidebar {
    position: static;
    margin-top: var(--space-xl);
  }
}

/* --- Article Header --- */
.column-article-header {
  margin-bottom: var(--space-lg);
}

.column-article-header__category {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--fs-label);
  font-weight: 600;
  color: var(--color-white);
  background: var(--color-main);
}

.column-article-header__category--mimamori {
  background: var(--color-main);
}

.column-article-header__category--kaigo {
  background: var(--color-cat-kaigo);
}

.column-article-header__category--senior {
  background: var(--color-cta);
}

.column-article-header__category--case {
  background: var(--color-gold);
}

.column-article-header__title {
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: var(--lh-heading);
  margin-top: var(--space-sm);
}

.column-article-header__meta {
  font-size: var(--fs-small);
  color: var(--color-text-sub);
  margin-top: var(--space-sm);
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.column-article-header__thumbnail {
  margin-top: var(--space-md);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.column-article-header__thumbnail img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* --- Table of Contents --- */
.column-toc {
  background: var(--color-bg-warm-gray);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  margin-top: 30px;
  margin-bottom: var(--space-lg);
}

.column-toc__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.column-toc__title::after {
  content: "\25BC";
  font-size: 0.75rem;
  margin-left: auto;
  transition: transform var(--transition-fast);
}

.column-toc__list {
  list-style: none;
  padding-left: 0;
  margin: 0;
  counter-reset: toc;
}

.column-toc__list li {
  padding: 0;
  margin-bottom: 0;
  border-bottom: 1px dashed var(--color-border);
}

.column-toc__list ol > li {
  padding: 0;
  margin-bottom: 0;
}

.column-toc__list li:last-child {
  border-bottom: none;
}

.column-toc__list a {
  color: var(--color-text);
  font-size: var(--fs-small);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.column-toc__list a:hover {
  color: var(--color-main);
}

.column-toc__list a.is-active {
  color: var(--color-main);
  font-weight: 700;
}

.column-toc__list ol {
  padding-left: var(--space-md);
  margin-top: 4px;
  list-style: none;
}

@media (max-width: 767px) {
  .column-toc {
    padding: var(--space-sm) var(--space-md);
  }

  .column-toc .column-toc__list {
    display: none;
  }

  .column-toc .column-toc__title::after {
    transform: rotate(-90deg);
  }

  .column-toc.is-expanded .column-toc__list {
    display: block;
  }

  .column-toc.is-expanded .column-toc__title::after {
    transform: rotate(0deg);
  }
}

/* --- Section Spacing Overrides --- */
.section--standard[aria-label="記事本文"] {
  padding-bottom: 0;
}

.section--standard[aria-labelledby="related-heading"] {
  padding-top: 60px;
}

/* --- Article Body (Gutenberg Content) --- */
.column-article-body h2 {
  font-size: 1.375rem;
  font-weight: 700;
  margin: var(--space-xl) 0 var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-main-light);
  border-left: 4px solid var(--color-main);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.column-article-body h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  margin: var(--space-lg) 0 var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 2px solid var(--color-main-light);
}

.column-article-body h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: var(--space-md) 0 var(--space-sm);
}

.column-article-body p {
  line-height: 2.0;
  margin-bottom: var(--space-md);
}

.column-article-body ul,
.column-article-body ol {
  margin: var(--space-md) 0;
  padding-left: 1.5em;
  line-height: 2.0;
}

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

.column-article-body blockquote {
  background: var(--color-bg-warm-gray);
  border-left: 4px solid var(--color-main);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: var(--space-md);
  margin: var(--space-md) 0;
  font-style: italic;
}

.column-article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
}

.column-article-body th,
.column-article-body td {
  padding: 12px var(--space-sm);
  border: 1px solid var(--color-border);
  font-size: var(--fs-small);
}

.column-article-body th {
  background: var(--color-main-light);
  font-weight: 700;
  text-align: left;
}

.column-article-body__table-wrap {
  overflow-x: auto;
}

.column-article-body img {
  border-radius: var(--radius-md);
  max-width: 100%;
  height: auto;
  margin: var(--space-md) 0;
}

.column-article-body pre,
.column-article-body code {
  background: var(--color-bg-warm-gray);
  border-radius: var(--radius-sm);
  font-size: var(--fs-small);
}

.column-article-body pre {
  padding: var(--space-md);
  overflow-x: auto;
}

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

.column-article-body a:hover {
  color: var(--color-main-dark);
}

/* --- Share Buttons --- */
.column-share {
  display: flex;
  gap: 12px;
  align-items: center;
  margin: var(--space-lg) 0;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.column-share__label {
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--color-text-sub);
  flex-shrink: 0;
}

.column-share__list {
  display: flex;
  gap: 8px;
}

.column-share__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-circle);
  color: var(--color-white);
  transition: opacity var(--transition-fast);
  text-decoration: none;
}

.column-share__btn:hover {
  opacity: 0.8;
}

.column-share__btn--line {
  background: var(--color-line);
}

.column-share__btn--x {
  background: #000000;
}

.column-share__btn--facebook {
  background: #1877F2;
}

.column-share__btn--hatena {
  background: #00A4DE;
}

/* --- Tags --- */
.column-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: var(--space-md) 0;
}

.column-tags__item {
  display: inline-block;
  padding: 4px 14px;
  background: var(--color-bg-warm-gray);
  border-radius: var(--radius-pill);
  font-size: var(--fs-label);
  color: var(--color-text-sub);
  text-decoration: none;
  transition: var(--transition-fast);
}

.column-tags__item:hover {
  background: var(--color-main-light);
  color: var(--color-main-dark);
}

/* --- Previous / Next Navigation --- */
.column-nav-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

@media (max-width: 767px) {
  .column-nav-links {
    grid-template-columns: 1fr;
  }
}

.column-nav-links__item {
  padding: var(--space-md);
  background: var(--color-bg-warm-gray);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-text);
  transition: background var(--transition-fast);
}

.column-nav-links__item:hover {
  background: var(--color-main-light);
}

.column-nav-links__item--next {
  text-align: right;
}

.column-nav-links__label {
  font-size: var(--fs-label);
  color: var(--color-text-sub);
  display: block;
  margin-bottom: 4px;
}

.column-nav-links__title {
  font-size: var(--fs-small);
  font-weight: 600;
}

/* --- CTA Buttons --- */
.column-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

@media (max-width: 480px) {
  .column-cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }
}

/* --- Related Posts --- */
.column-related {
  padding: var(--space-xl) 0;
}

.column-related__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 1023px) {
  .column-related__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .column-related__grid {
    grid-template-columns: 1fr;
  }
}