/* ============================================
   Border Pet – Blog Styles
   ============================================ */

/* --- Blog header --- */
.blog-header {
  padding: var(--space-7) 0 var(--space-5);
}

.blog-header__intro {
  font-size: 1.15rem;
  color: #555e6a;
  max-width: 56ch;
}

/* --- Category filter nav --- */
.category-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 2px solid var(--color-lighter);
}

.category-filter__btn {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  background: transparent;
  transition: background-color 0.1s, color 0.1s;
}

.category-filter__btn:visited {
  color: var(--color-primary);
}

.category-filter__btn:hover {
  background-color: var(--color-primary);
  color: #fff;
  text-decoration: none;
}

.category-filter__btn--active {
  background-color: var(--color-primary);
  color: #fff;
}

.category-filter__btn--active:visited {
  color: #fff;
}

/* --- Post grid --- */
.post-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

/* --- Post card --- */
.post-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  background: #fff;
  transition: box-shadow 0.15s ease;
}

.post-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.10);
}

.post-card__img-link {
  display: block;
  overflow: hidden;
}

.post-card__img {
  display: block;
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.2s ease;
}

.post-card:hover .post-card__img {
  transform: scale(1.02);
}

.post-card__img-placeholder {
  width: 100%;
  height: 200px;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.post-card__body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}

.tag--category {
  background-color: color-mix(in srgb, var(--color-black) 20%, transparent);
  color: var(--color-black);
  font-size: var(--font-size-xs);
  align-self: flex-start;
}

.post-card__title {
  font-size: 1.2rem;
  margin: 0;
  line-height: 1.3;
}

.post-card__title a {
  color: var(--color-text);
  text-decoration: none;
}

.post-card__title a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.post-card__excerpt {
  font-size: var(--font-size-sm);
  color: #555e6a;
  margin: 0;
  flex: 1;
}

.post-card__meta {
  font-size: var(--font-size-xs);
  color: #555e6a;
  margin: 0;
}

/* --- Single post --- */
.post-hero {
  width: 100%;
  max-height: 460px;
  overflow: hidden;
  margin-bottom: var(--space-6);
}

.post-hero__img {
  display: block;
  width: 100%;
  height: 460px;
  object-fit: cover;
}

.post-header {
  padding: var(--space-6) 0 var(--space-5);
  border-bottom: 2px solid var(--color-lighter);
  margin-bottom: var(--space-6);
}

.post-header .tag--category {
  display: inline-block;
  margin-bottom: var(--space-4);
  text-decoration: none;
}

.post-header__title {
  margin-top: var(--space-3);
  margin-bottom: var(--space-3);
}

.post-meta {
  font-size: var(--font-size-sm);
  color: #555e6a;
}

.post-meta__sep {
  margin: 0 var(--space-2);
}

/* --- Post body typography --- */
.post-body {
  max-width: 72ch;
  margin-bottom: var(--space-8);
}

.post-body h2 {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 2px solid var(--color-surface);
}

.post-body h3 {
  margin-top: var(--space-6);
}

.post-body ul,
.post-body ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-5);
}

.post-body li {
  margin-bottom: var(--space-2);
}

.post-body blockquote {
  border-left: 5px solid var(--color-primary);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface);
  margin: var(--space-6) 0;
  font-style: italic;
}

.post-body img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: var(--space-5) 0;
}

/* --- Share section --- */
.post-share {
  border-top: 2px solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
  padding: var(--space-5) 0;
  margin-bottom: var(--space-6);
}

.post-share__label {
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.post-share__buttons {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.share-btn {
  font-size: var(--font-size-sm);
  padding: var(--space-2) var(--space-4);
  box-shadow: none;
}

.copy-confirm {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-success);
}

/* --- Back link --- */
.post-back {
  margin-bottom: var(--space-8);
}

/* --- Responsive --- */
@media (max-width: 640px) {
  .post-grid {
    grid-template-columns: 1fr;
  }

  .post-hero__img {
    height: 240px;
  }

  .post-share__buttons {
    flex-direction: column;
    align-items: flex-start;
  }

  .share-btn {
    width: auto;
  }
}