/* ===== Điều hướng bài trước / bài tiếp theo (blog.php) ===== */
.post-navigation {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding-top: 30px;
  border-top: 1px solid rgba(44, 37, 68, 0.08);
}

.post-navigation__item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  padding: 12px;
  overflow: hidden;
  border: 1px solid rgba(44, 37, 68, 0.08);
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 6px 20px rgba(37, 33, 58, 0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.post-navigation__item--prev {
  grid-column: 1;
}

.post-navigation__item--next {
  grid-column: 2;
  flex-direction: row-reverse;
  text-align: right;
}

.post-navigation__item:hover,
.post-navigation__item:focus-visible {
  border-color: rgba(162, 58, 141, 0.25);
  box-shadow: 0 14px 32px rgba(37, 33, 58, 0.1);
  transform: translateY(-3px);
}

.post-navigation__thumb {
  flex: 0 0 auto;
  display: block;
  width: 96px;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: 10px;
  background: #eeedf3;
}

.post-navigation__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.post-navigation__item:hover .post-navigation__thumb img,
.post-navigation__item:focus-visible .post-navigation__thumb img {
  transform: scale(1.06);
}

.post-navigation__text {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.post-navigation__item--next .post-navigation__text {
  align-items: flex-end;
}

.post-navigation__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #8c347d;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.post-navigation__label i {
  transition: transform 0.2s ease;
}

.post-navigation__item--prev:hover .post-navigation__label i {
  transform: translateX(-4px);
}

.post-navigation__item--next:hover .post-navigation__label i {
  transform: translateX(4px);
}

.post-navigation__title {
  display: -webkit-box;
  overflow: hidden;
  color: #29263a;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  transition: color 0.2s ease;
}

.post-navigation__item:hover .post-navigation__title,
.post-navigation__item:focus-visible .post-navigation__title {
  color: #8c347d;
}

@media (max-width: 767px) {
  .post-navigation {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .post-navigation__item--prev,
  .post-navigation__item--next {
    grid-column: 1;
  }

  .post-navigation__thumb {
    width: 80px;
  }

  .post-navigation__title {
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .post-navigation__item,
  .post-navigation__thumb img,
  .post-navigation__label i {
    transition: none;
  }
}