/* =============================================================================
   CE Theme — Blog & Single Post
   ========================================================================== */

/* ---- Blog header ---- */
.blog-header {
  background: var(--header-bg, #1a1a1a);
  color: #fff;
  padding-block: 3rem 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.blog-header__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: .5rem;
}
.blog-header__sub {
  font-size: 1rem;
  opacity: .8;
  max-width: 540px;
}

/* ---- Blog container ---- */
.blog-container { padding-block: 3rem; }

/* ---- Blog grid: 2 columns ---- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}
.blog-grid--3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 900px) { .blog-grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) {
  .blog-grid,
  .blog-grid--3 { grid-template-columns: 1fr; }
}

/* ---- Blog Card ---- */
.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.blog-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }

.blog-card__image-link { display: block; overflow: hidden; }
.blog-card__image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
  transition: transform .35s ease;
}
.blog-card:hover .blog-card__image { transform: scale(1.03); }
.blog-card__image--placeholder {
  background: var(--color-bg-alt);
  aspect-ratio: 16/9;
}

.blog-card__body {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  padding: 1.5rem;
  flex: 1;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .8rem;
}
.blog-card__cat {
  background: var(--color-primary-lt);
  color: var(--color-primary-dk);
  padding: .2rem .6rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.blog-card__date { color: var(--color-text-light); }

.blog-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
}
.blog-card__title a { color: var(--color-dark); }
.blog-card__title a:hover { color: var(--color-primary); }

.blog-card__excerpt {
  font-size: .875rem;
  color: var(--color-text-light);
  line-height: 1.65;
  flex: 1;
}

.blog-card__link {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .875rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: auto;
}
.blog-card__link:hover { color: var(--color-primary-dk); }

/* ---- Pagination ---- */
.pagination { display: flex; gap: .4rem; flex-wrap: wrap; justify-content: center; }
.page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding-inline: .5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: .9rem;
  color: var(--color-text);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.page-numbers.current,
.page-numbers:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* =============================================================================
   SINGLE POST
   ========================================================================== */

/* ---- Post Hero ---- */
.post-hero {
  background: var(--header-bg, #1a1a1a);
  color: #fff;
  padding-block: 3rem 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.post-hero__meta {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1rem;
  font-size: .85rem;
}
.post-hero__cat {
  background: var(--color-primary);
  color: #fff;
  padding: .2rem .7rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.post-hero__date { opacity: .7; }
.post-hero__title {
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.2;
  max-width: 820px;
}

/* ---- Post thumbnail ---- */
.post-thumbnail { margin-block: 2rem 0; }
.post-thumbnail .container { padding-inline: 0; }
.post-thumbnail__img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  display: block;
}

/* ---- Post layout: TOC + content ---- */
.post-layout {
  display: block;
  padding-block: 3rem;
}
.post-layout--has-toc {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 3rem;
  align-items: start;
}

/* ---- TOC Wrapper (sticky) ---- */
.post-toc-wrapper {
  position: sticky;
  top: calc(var(--header-h, 64px) + 1.5rem);
  max-height: calc(100vh - var(--header-h, 64px) - 3rem);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

/* ---- TOC ---- */
.toc {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.toc__title {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-text-light);
  margin-bottom: .75rem;
}
.toc__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .1rem;
  counter-reset: toc-counter;
}
.toc__item { counter-increment: toc-counter; }
.toc__item--sub { padding-left: 1rem; }
.toc__item--sub .toc__link { font-size: .82rem; }

.toc__link {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  padding: .3rem .4rem;
  border-radius: 4px;
  font-size: .875rem;
  color: var(--color-text);
  line-height: 1.4;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
}
.toc__item:not(.toc__item--sub) > .toc__link::before {
  content: counter(toc-counter) '.';
  flex-shrink: 0;
  color: var(--color-primary);
  font-size: .75rem;
  font-weight: 700;
}
.toc__link:hover { background: var(--color-primary-lt); color: var(--color-primary-dk); }
.toc__link.is-active { background: var(--color-primary-lt); color: var(--color-primary); font-weight: 600; }

/* ---- Post content area ---- */
.post-content-area { min-width: 0; }

.entry-content {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text);
}
.entry-content h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-dark);
  padding-top: .5rem;
  border-top: 2px solid var(--color-primary-lt);
}
.entry-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: .75rem;
  color: var(--color-dark);
}
.entry-content p { margin-bottom: 1.2rem; }
.entry-content ul,
.entry-content ol {
  margin: .75rem 0 1.2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}
.entry-content ul { list-style: disc; }
.entry-content ol { list-style: decimal; }
.entry-content li { line-height: 1.7; }
.entry-content strong { font-weight: 700; color: var(--color-dark); }
.entry-content a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; }
.entry-content a:hover { color: var(--color-primary-dk); }
.entry-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin-block: 1.5rem;
}
.entry-content blockquote {
  border-left: 4px solid var(--color-primary);
  background: var(--color-primary-lt);
  padding: 1rem 1.5rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-block: 1.5rem;
  color: var(--color-dark);
  font-style: italic;
}
.entry-content code {
  background: var(--color-bg-alt);
  padding: .1em .4em;
  border-radius: 3px;
  font-size: .9em;
  font-family: ui-monospace, 'Courier New', monospace;
}
.entry-content table {
  width: 100%;
  border-collapse: collapse;
  margin-block: 1.5rem;
  font-size: .9rem;
}
.entry-content th,
.entry-content td { border: 1px solid var(--color-border); padding: .6rem .9rem; text-align: left; }
.entry-content th { background: var(--color-bg-alt); font-weight: 700; }

/* ---- Post footer ---- */
.post-footer { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--color-border); }

.post-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 2rem; }
.post-tag {
  display: inline-block;
  padding: .3rem .75rem;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: .8rem;
  color: var(--color-text-light);
  transition: border-color var(--transition), color var(--transition);
}
.post-tag:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* Post navigation */
.post-navigation { display: block; }
.nav-links {  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;  }
.nav-previous,
.nav-next {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  transition: border-color var(--transition);
}
.nav-previous:hover,
.nav-next:hover { border-color: var(--color-primary); }
.nav-next { text-align: right; }
.nav-label { display: block; font-size: .75rem; color: var(--color-primary); font-weight: 700; text-transform: uppercase; letter-spacing: .05em; margin-bottom: .25rem; }
.nav-title { font-size: .9rem; font-weight: 600; color: var(--color-text); }
.post-navigation a { text-decoration: none; }

@media (max-width: 600px) { .nav-links { grid-template-columns: 1fr; } .nav-next { text-align: left; } }

/* ---- Related posts ---- */
.related-posts { background: var(--color-bg-alt); padding-block: 4rem; }
.related-posts__title {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 2rem;
}

/* ---- Responsive post layout ---- */
@media (max-width: 900px) {
  .post-layout--has-toc { grid-template-columns: 1fr; }

  .post-toc-wrapper {
    position: static;
    max-height: none;
  }
  .toc { margin-bottom: 1.5rem; }
}