/* ============================================
   Single Post Page — generic article template
   v2026-04-18
   ============================================ */

/* ──── Hero ──── */
.single-post-hero {
  position: relative;
  width: 100%;
  height: 520px;
  overflow: hidden;
  background: var(--gx-dark);
}

.single-post-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover !important;
  object-position: center center !important;
  opacity: 0.9;
}

.single-post-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.62) 0%,
    rgba(0, 0, 0, 0.28) 50%,
    rgba(0, 0, 0, 0.04) 100%
  );
  z-index: 1;
}

.single-post-hero__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--sp-8) var(--sp-6) var(--sp-6);
  z-index: 2;
  max-width: 860px;
  margin-inline: auto;
  width: 100%;
}

/* カテゴリーバッジ */
.single-post__category {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--gx-white);
  background: var(--gx-accent);
  padding: 2px var(--sp-2);
  border-radius: var(--radius-sm);
  margin-bottom: var(--sp-2);
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* カテゴリーリンクのデフォルト色を上書き */
.single-post__category a {
  color: inherit;
  text-decoration: none;
}

/* タイトル */
.single-post__title {
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--gx-white) !important; /* Bricks グローバル h1 color 上書き */
  margin: 0 0 var(--sp-2);
}

/* メタ行 */
.single-post__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-4);
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.75);
}

.single-post__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.single-post__meta-modified {
  color: rgba(255, 255, 255, 0.55);
}

/* ──── Main Wrap ──── */
.single-post-wrap {
  max-width: 860px;
  margin-inline: auto;
  padding: var(--sp-6) var(--sp-6) var(--sp-8);
}

/* ──── Post Content ──── */
.single-post__content {
  font-size: var(--fs-base);
  line-height: 1.9;
  color: var(--gx-dark);
}

.single-post__content h2 {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin: var(--sp-8) 0 var(--sp-4);
  padding-bottom: var(--sp-2);
  border-bottom: 2px solid var(--gx-gray-light);
}

.single-post__content h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin: var(--sp-6) 0 var(--sp-2);
}

.single-post__content p {
  margin-bottom: var(--sp-4);
}

.single-post__content a {
  color: var(--gx-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.single-post__content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: var(--sp-4) 0;
}

.single-post__content ul,
.single-post__content ol {
  padding-left: 1.5em;
  margin-bottom: var(--sp-4);
}

.single-post__content li {
  margin-bottom: var(--sp-1);
  line-height: 1.8;
}

/* ──── Tags ──── */
.single-post-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--sp-2);
  margin-top: var(--sp-6);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--gx-gray-light);
}

.single-post-tags__label {
  font-size: var(--fs-xs);
  color: var(--gx-gray);
  font-weight: 600;
  white-space: nowrap;
}

.single-post-tags__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1) var(--sp-2);
  font-size: var(--fs-xs);
}

.single-post-tags__list a {
  display: inline-block;
  padding: 2px var(--sp-2);
  background: var(--gx-bg);
  border: 1px solid var(--gx-gray-light);
  border-radius: 999px;
  color: var(--gx-gray);
  text-decoration: none;
  transition: background var(--duration-fast) var(--ease-out);
}

.single-post-tags__list a:hover {
  background: var(--gx-accent);
  border-color: var(--gx-accent);
  color: var(--gx-white);
}

/* ──── Related Posts ──── */
.single-post-related {
  margin-top: var(--sp-8);
  padding-top: var(--sp-6);
  border-top: 2px solid var(--gx-gray-light);
}

.single-post-related__title {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--gx-dark);
  margin: 0 0 var(--sp-4);
}

.single-post-related__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
}

.single-post-related__card {
  display: flex;
  flex-direction: column;
  background: var(--gx-white);
  border: 1px solid var(--gx-gray-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  text-decoration: none;
  color: var(--gx-dark);
  width: 100%;
  max-width: 100%;
  transition: box-shadow var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}

.single-post-related__card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  color: var(--gx-dark);
}

.single-post-related__img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}

.single-post-related__info {
  padding: var(--sp-2) var(--sp-4) var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  flex: 1;
}

.single-post-related__card-title {
  font-size: var(--fs-sm);
  font-weight: 700;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.single-post-related__card-date {
  font-size: var(--fs-xs);
  color: var(--gx-gray);
  margin-top: auto;
}

/* ──── Prev/Next Nav ──── */
.single-post-nav {
  display: flex;
  gap: var(--sp-4);
  margin-top: var(--sp-8);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--gx-gray-light);
}

.single-post-nav__link {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  padding: var(--sp-4);
  background: var(--gx-bg);
  border: 1px solid var(--gx-gray-light);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--gx-dark);
  transition: box-shadow var(--duration-fast) var(--ease-out);
}

.single-post-nav__link:hover {
  box-shadow: var(--shadow-sm);
  color: var(--gx-dark);
}

.single-post-nav__prev {
  text-align: left;
}

.single-post-nav__next {
  text-align: right;
}

.single-post-nav__label {
  font-size: var(--fs-xs);
  color: var(--gx-gray);
  font-weight: 600;
  display: block;
}

.single-post-nav__title {
  font-size: var(--fs-sm);
  font-weight: 700;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  display: block;
}

/* ──── Mobile ──── */
@media (max-width: 767px) {
  .single-post-hero {
    height: 340px;
  }

  .single-post-hero__content {
    padding: var(--sp-6) var(--sp-4) var(--sp-4);
  }

  .single-post-wrap {
    padding: var(--sp-4);
  }

  .single-post-related__grid {
    grid-template-columns: 1fr;
  }

  .single-post-nav {
    flex-direction: column;
  }

  .single-post-nav__next {
    text-align: left;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .single-post-related__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}