/* Styles for News Single Page */

#single {
  padding: 80px 0;
}

#single .container {
  width: 63.75%;
  max-width: 1020px;
}

#single .single-inner {
  max-width: 850px;
  margin: 0 auto;
}

/* Breadcrumbs */
.breadcrumbs {
  margin-bottom: 40px;
  font-family: "tt-commons-pro", sans-serif;
  font-size: 14px;
  color: var(--color-accent);
}

.breadcrumbs li {
  display: inline;
}

.breadcrumbs li:not(:last-child)::after {
  content: " > ";
  margin: 0 8px;
}

.breadcrumbs a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}

.breadcrumbs a:hover {
  color: var(--color-primary);
}

.single-header {
  width: calc(100% - 300px);
  padding: 60px 0 100px 0;
  border-bottom: 2px solid #e0e0e0;
  margin-bottom: 40px;
  margin: 0 auto;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
}

@media screen and (max-width: 1200px) {
  .single-header {
    width: calc(100% - 200px);
  }
}

@media screen and (max-width: 768px) {
  .single-header {
    width: calc(100% - 40px);
    padding: 40px 0 50px 0;
    margin-bottom: 30px;
  }
}

.single-header .container {
  margin: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

/* News Article */
.page-ttl {
  margin-bottom: 132px;
  margin-top: 83px;
  font-size: 34px;
  color: #12213e;
  font-family: var(--font-tt-commons), sans-serif;
  font-weight: 500;
  letter-spacing: 0.16em;
}

.page-ttl span {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 3px;
  margin-left: 57px;
}

.single-article {
  margin-bottom: 60px;
}

.single-title {
  font-family: "dnp-shuei-gothic-gin-std", sans-serif;
  font-size: 28px;
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-primary);
  margin: 0 0 20px 0;
  text-align: left;
  letter-spacing: 1px;
}

.single-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 0;
}

.single-date {
  font-family: "tt-commons-pro", sans-serif;
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 1px;
  color: var(--color-accent);
}

.single-category {
  font-family: "tt-commons-pro", sans-serif;
  font-weight: 400;
  font-size: 14px;
  color: var(--color-accent);
}

.single-content {
  font-family: "dnp-shuei-gothic-gin-std", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-primary);
  margin: 100px 0;
}

.single-content h1 {
  letter-spacing: 1px;
  font-size: 22px;
  font-weight: 600;
  margin: 60px 0;
  color: var(--color-primary);
  text-align: left;
}

.single-content h2 {
  font-size: 28px;
  font-weight: 400;
  letter-spacing: 2px;
  margin: 50px 0;
  color: var(--color-primary);
}

.single-content h3 {
  font-size: 1.25rem;
  font-weight: 400;
  margin: 40px 0 20px 0;
  color: var(--color-primary);
  text-align: center;
}

.single-content p {
  font-size: 13px;
  font-weight: 400;
  margin-bottom: 20px;
  color: var(--color-third);
  text-align: left;
  letter-spacing: 1.6px;
  line-height: 2.4;
}

.single-content ul,
.single-content ol {
  margin: 20px 0;
  padding-left: 30px;
}

.single-content li {
  margin-bottom: 10px;
}

.single-content blockquote {
  border-left: 4px solid var(--color-accent);
  padding-left: 20px;
  margin: 30px 0;
  font-style: italic;
  color: var(--color-accent);
}

.single-content img {
  max-width: 100%;
  height: auto;
  margin: 100px 0;
  display: block;
}

/* Image placeholder style for demo purposes */
.single-content .wp-block-image img,
.single-content img {
  background-color: #1a233a;
  min-height: 300px;
  object-fit: cover;
}

/* Tags */
.single-tags {
  margin: 40px 0;
  padding-top: 30px;
  border-top: 1px solid #e0e0e0;
}

.tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.tags-label {
  font-family: "tt-commons-pro", sans-serif;
  font-size: 14px;
  color: var(--color-accent);
  margin-right: 10px;
}

.tag {
  display: inline-block;
  padding: 6px 12px;
  background-color: #f5f5f5;
  color: var(--color-primary);
  text-decoration: none;
  font-size: 12px;
  border-radius: 20px;
  transition: background-color 0.2s;
}

.tag:hover {
  background-color: var(--color-accent);
  color: #fff;
}

/* Related Articles */
.related {
  margin: 60px 0;
  padding: 40px 0;
  border-top: 1px solid #e0e0e0;
}

.related-title {
  font-family: "tt-commons-pro", sans-serif;
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: 30px;
  text-align: center;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.related-item {
  transition: opacity 0.2s;
}

.related-item:hover {
  opacity: 0.8;
}

.related-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.related-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 8px;
  margin-bottom: 15px;
}

.related-image img,
.related-image-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background-color: #f0f0f0;
}

.related-content {
  text-align: left;
}

.related-date {
  font-family: "tt-commons-pro", sans-serif;
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 2.5px;
  color: var(--color-accent);
  margin-bottom: 8px;
  display: block;
}

.related-title {
  font-family: "dnp-shuei-gothic-gin-std", sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.4;
  color: var(--color-primary);
  margin: 0;
}

.related-empty {
  text-align: center;
  color: var(--color-accent);
  font-style: italic;
  grid-column: 1 / -1;
}

/* Navigation */
.single-nav {
  display: flex;
  justify-content: center;
  align-items: center;
}

.nav-container {
  display: flex;
  align-items: center;
  gap: 100px;
}

.nav-archives {
  text-decoration: none;
  color: #545b6a;
  font-family: "tt-commons-pro", sans-serif;
  font-size: 16px;
  font-weight: 400;
  transition: color 0.2s;
  margin-top: 100px;
}

.nav-archives:hover {
  color: var(--color-primary);
}

.nav-arrow-link {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: transform 0.3s, opacity 0.3s;
  margin-top: 100px;
}

.nav-arrow-link:hover {
  transform: scale(1.03);
}

.nav-arrow-link.disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.nav-arrow-left,
.nav-arrow-right {
  width: 16px;
  height: 16px;
  transition: transform 0.3s;
}

.nav-arrow-left,
.nav-arrow-link.disabled:hover .nav-arrow-left {
  transform: rotate(180deg);
}

.nav-arrow-link:hover .nav-arrow-left {
  transform: rotate(180deg) translateX(5px);
}

.nav-arrow-link:hover .nav-arrow-right {
  transform: translateX(5px);
}

.nav-arrow-link.disabled:hover .nav-arrow-right {
  transform: none;
}

.nav-text {
  letter-spacing: 0.5px;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
  #single .container {
    width: 95%;
    max-width: none;
  }

  .single-header .container {
    width: 100%;
    margin: 0;
  }

  .page-ttl {
    display: none;
  }

  .single-meta {
    align-items: flex-start;
    gap: 10px;
  }

  .single-title {
    font-size: 1.5rem;
    text-align: left;
  }

  .single-content {
    font-size: 14px;
  }

  .single-content h1 {
    font-size: 17px;
    font-weight: 500;
    margin-bottom: 31px;
  }

  .single-content h2 {
    margin-top: 30px;
    margin-bottom: 26px;
  }

  .single-content p {
    font-size: 13px;
    margin-bottom: 27px;
    line-height: 1.7;
    font-weight: 500;
  }

  .single-content img {
    margin-bottom: 27px;
    margin-top: 40px;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .single-nav {
    margin: 40px 0;
    padding: 20px 0;
  }

  .nav-container {
    gap: 50px;
  }

  .nav-archives {
    font-size: 14px;
    margin-top: 50px;
  }

  .nav-arrow-link {
    margin-top: 50px;
  }

  .nav-arrow-left,
  .nav-arrow-right {
    width: 14px;
    height: 14px;
  }
}

@media screen and (max-width: 480px) {
  #single {
    padding: 40px 0;
  }

  .single-title {
    font-size: 1.25rem;
  }

  .single-content {
    margin-top: 100px;
    font-size: 13px;
  }
}

/* Footer内のtop-arrowを保護 */
.footer .top-arrow {
  width: 13px;
  height: 13px;
  margin: 0;
  object-fit: contain;
}

/* Drawer内のtop-arrowを保護 */
.drawer .top-arrow {
  width: 13px;
  height: 13px;
  margin: 0;
  object-fit: contain;
}