/* =========================================================================
   Blog Post Page Styles
   Detailed blog article page with table of contents and structured content
   ========================================================================= */

:root {
  --post-bg: #e8e8e8;
  --post-content-bg: #ffffff;
  --post-header-bg: #f0f0f0;
  --post-toc-bg: #fdfbf5;
  --post-text: #333;
  --post-title: #1a1a1a;
  --post-meta: #666;
  --post-link: #4a7ba7;
  --post-tag: #4a7ba7;
  --post-cta-bg: #4a9fd8;
  --post-cta-hover: #3a8ac0;
}

/* Blog Post Container */
.blog-post {
  background: #ffffff;
  min-height: 100vh;
  padding: 0;
  margin: 0;
}

.blog-post__container {
  max-width: 760px;
  margin-inline: auto;
  padding: 0;
  background: var(--post-content-bg);
}

/* ========================================================================= */
/* TITLE HERO SECTION - Full Width Container Fluid */
/* ========================================================================= */
.blog-post__title-hero {
  width: 100%;
  margin-left: 0;
  padding: 0;
  margin-bottom: 0;
  position: relative;
  overflow: hidden;
  z-index: 2;
  background-image: url('assets/img/BLOG.png');
  background-size: cover;
  background-position: center;
  min-height: 320px;
}

.blog-post__hero-img {
  display: none;
}

.blog-post__title {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 33px;
  font-weight: 700;
  line-height: 1.5;
  color: #000000;
  text-shadow: none;
  margin: 0;
  padding: 0;
  letter-spacing: 0.01em;
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  white-space: normal;
  background: transparent;
  text-align: center;
}

@media (max-width: 767px) {
  .blog-post__title {
    font-size: 1.4rem;
  }
}

/* ========================================================================= */
/* HEADER SECTION - Metadata/Tags/Share */
/* ========================================================================= */

.blog-post__header {
  width: 100%;
  background: white;
  padding: 2rem 1.25rem;
  margin-bottom: 0;
  border-radius: 0;
  position: relative;
  z-index: 1;
}

.blog-post__meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.blog-post__date {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 0.9rem;
  color: var(--post-meta);
  font-weight: 400;
  letter-spacing: 0.01em;
  display: block;
}

.blog-post__category {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 0.85rem;
  color: #555;
  background: #f2ebd9;
  padding: 0.2rem 0.75rem;
  border-radius: 4px;
  display: inline-block;
  font-weight: 500;
  width: fit-content;
}

.blog-post__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
  position: relative;
  z-index: 1;
}

.blog-post__tag {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 0.85rem;
  color: var(--post-tag);
  font-weight: 400;
  letter-spacing: 0.01em;
}

/* Social Share Buttons */
.blog-post__share {
  display: flex;
  gap: 1rem;
  padding: 0;
  border-top: none;
  position: relative;
  z-index: 1;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0;
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 0;
  transition: all 0.2s ease;
  border: none;
  background: transparent;
}

.share-btn--substack {
  color: #ff6719;
}

.share-btn--substack:hover {
  opacity: 0.8;
}

.share-btn--linkedin {
  color: #0077b5;
}

.share-btn--linkedin:hover {
  opacity: 0.8;
}

.share-btn img {
  width: 70px;
  height: 20px;
  object-fit: contain;
  border-radius: 3px;
}

/* Featured Image */
.blog-post__featured-image {
  margin: 0;
  overflow: hidden;
  border-radius: 0;
  background: #f0f0f0;
  line-height: 0;
}

.blog-post__featured-image img {
  width: 100%;
  height: auto;
  display: block;
  margin: 0;
  padding: 0;
}

/* Table of Contents */
.blog-post__toc {
  background: var(--post-toc-bg);
  padding: 1.25rem;
  margin: 0;
  /* border-left: 4px solid #000000; */
}

.blog-post__toc-title {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--post-title);
  margin: 0 0 1rem 0;
  letter-spacing: 0.2em;
}

.blog-post__toc-list {
  list-style: decimal;
  padding: 0 0 0 1.5rem;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.blog-post__toc-list li {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 0.9rem;
  line-height: 1.6;
  padding-left: 0.35rem;
}

.blog-post__toc-list a {
  color: var(--post-text);
  text-decoration: underline;
  transition: color 0.2s ease;
  display: block;
}

.blog-post__toc-list a:hover {
  color: var(--post-link);
  text-decoration: underline;
}

/* Content Sections */
.blog-post__content {
  background: var(--post-content-bg);
  padding: 1rem 1.25rem;
  margin-bottom: 0;
  border-radius: 0;
}

.blog-post__section-title {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--post-title);
  margin: 2.5rem 0 1rem;
  padding-left: 0.7rem;
  border-left: 4px solid var(--color-line, #c4944b);
  letter-spacing: 0.03em;
}

.blog-post__subsection-title {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--post-title);
  margin: 1.75rem 0 0.75rem;
  letter-spacing: 0.01em;
}

.blog-post__content p {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--post-text);
  /* margin: 0 0 1.1rem; */
  margin: 17px 0 1.1rem;
}

.blog-post__content p strong {
  font-weight: 700;
  color: var(--post-title);
}

.blog-post__intro {
  background: transparent;
  padding: 0;
  margin: 0 0 1.5rem 0;
  border-left: none;
}

.blog-post__intro p {
  margin-bottom: 0.35rem;
  font-size: 0.95rem;
  line-height: 1.7;
}

.blog-post__intro p:last-child {
  margin-bottom: 0;
}

.blog-post__label {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--post-title);
  margin: 0 0 0.6rem;
}

.blog-post__list {
  list-style: none;
  padding: 0 0 0 1.25rem;
  margin: 0 0 1.1rem;
}

.blog-post__list li {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--post-text);
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.5rem;
}

.blog-post__list li::before {
  content: "・";
  position: absolute;
  left: 0;
  color: var(--post-text);
  font-weight: 400;
}

/* Content Image */
.blog-post__content-image {
  margin: 2rem 0;
  display: flex;
  justify-content: center;
}

.blog-post__content-image img {
  width: 67%;
  height: auto;
  display: block;
  border-radius: 0;
}

/* CTA Section */
.blog-post__cta {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: 1.5rem 1.25rem;
  margin: 0;
}

.blog-post__cta-text {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 0.95rem;
  font-weight: 700;
  color: #1a1a1a;
  margin: 0;
  white-space: nowrap;
}

.blog-post__cta-button {
  display: inline-block;
  text-decoration: none;
}

.blog-post__cta-button img {
  width: 180px;
  height: auto;
  display: block;
}





/* Navigation */
.blog-post__nav {
  text-align: center;
  padding: 2rem 0;
  background: var(--post-bg);
}

.blog-post__back-link {
  font-family: var(--font-jp, "Noto Sans JP", sans-serif);
  font-size: 0.95rem;
  color: var(--post-link);
  text-decoration: none;
  transition: color 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.blog-post__back-link:hover {
  color: #3a6b8f;
  text-decoration: underline;
}

/* Responsive - Desktop */
@media (min-width: 768px) {
  .blog-post {
    padding: 0;
  }

  .blog-post__header {
    padding: 2.5rem 1.5rem;
  }

  .blog-post__title {
    font-size: 19px;
    line-height: 1.5;
    margin: 0;
    padding: 3.5rem 5%;
    white-space: nowrap;
  }

  .blog-post__meta {
    gap: 0.75rem;
  }

  .blog-post__date,
  .blog-post__category {
    font-size: 1rem;
  }

  .blog-post__tags {
    gap: 0.75rem;
    margin-bottom: 1.5rem;
  }

  .blog-post__tag {
    font-size: 0.95rem;
  }

  .blog-post__share {
    gap: 1.25rem;
  }

  .share-btn {
    font-size: 1rem;
  }

  .blog-post__toc {
    padding: 1.5rem;
  }

  .blog-post__toc-title {
    font-size: 1.15rem;
  }

  .blog-post__toc-list li {
    font-size: 1rem;
  }

  .blog-post__content {
    padding: 0rem 1.5rem;
  }

  .blog-post__section-title {
    font-size: 1.3rem;
  }

  .blog-post__subsection-title {
    font-size: 1.05rem;
  }

  .blog-post__content p {
    font-size: 1rem;
    line-height: 1.5;
    margin-bottom: 1.1rem;
  }

  .blog-post__intro p {
    font-size: 1rem;
  }

  .blog-post__list li {
    font-size: 1rem;
    line-height: 1.85;
  }

  .blog-post__cta {
    padding: 2rem 9.5rem;
  }

  .blog-post__cta-text {
    font-size: 1.15rem;
  }

  .blog-post__nav {
    padding: 2.5rem 0;
  }
}

/* Responsive - Mobile */
@media (max-width: 767px) {
  .blog-post__header {
    padding: 1.75rem 1.25rem 1.5rem;
  }

  .blog-post__title {
    font-size: 1.65rem;
  }

  .blog-post__toc {
    padding: 1.25rem;
  }

  .blog-post__content {
    padding: 1.25rem;
  }

  .blog-post__section-title {
    font-size: 1.2rem;
  }

  .blog-post__subsection-title {
    font-size: 1rem;
  }

  .blog-post__content p {
    font-size: 0.92rem;
  }

  .blog-post__intro p {
    font-size: 0.9rem;
  }

  .blog-post__list li {
    font-size: 0.92rem;
  }

  .blog-post__cta {
    flex-direction: row;
    gap: 1rem;
    padding: 1.5rem 1.25rem;
    justify-content: center;
    align-items: center;
  }

  .blog-post__cta-text {
    font-size: 0.88rem;
    white-space: nowrap;
  }

  .blog-post__cta-button img {
    width: 160px;
  }

  .share-btn {
    font-size: 0.85rem;
  }
}

/* ---- Comparison table ---- */
.blog-post__table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-family: var(--font-jp);
  font-size: 0.9rem;
}

.blog-post__table th,
.blog-post__table td {
  border: 1px solid #d0c8b8;
  padding: 0.6rem 1rem;
  text-align: left;
}

.blog-post__table thead th {
  background: #f2ebd9;
  font-weight: 700;
  color: #1a1a1a;
}

.blog-post__table tbody tr:nth-child(even) {
  background: #fdfbf5;
}

.blog-post__table--borderless,
.blog-post__table--borderless thead th,
.blog-post__table--borderless tbody tr,
.blog-post__table--borderless tbody tr:nth-child(even),
.blog-post__table--borderless th,
.blog-post__table--borderless td {
  border: none;
  background: #ffffff;
}

.blog-post__table--borderless th {
  font-weight: 700;
  color: #1a1a1a;
  padding-bottom: 0.3rem;
}