.post-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.back-link {
  color: #58a6ff;
  text-decoration: none;
}

.back-link:hover {
  text-decoration: underline;
}

.share-post-btn {
  background: rgba(139, 148, 158, 0.1);
  border: 1px solid rgba(139, 148, 158, 0.3);
  border-radius: 6px;
  color: #8b949e;
  cursor: pointer;
  padding: 0.4rem 0.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.share-post-btn svg {
  width: 18px;
  height: 18px;
}

.share-post-btn:hover {
  color: #58a6ff;
  background: rgba(88, 166, 255, 0.15);
  border-color: rgba(88, 166, 255, 0.4);
}

.share-post-btn:active {
  transform: scale(0.95);
}

.share-post-btn.copied {
  color: #3fb950;
}

.post-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #30363d;
}

.post-title {
  margin: 0 0 0.5rem 0;
  font-size: 2rem;
  font-weight: 600;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  font-size: 0.875rem;
  color: #8b949e;
}

.post-date {
  color: #8b949e;
}

.post-categories,
.post-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

a.category,
a.tag {
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
  font-size: 0.75rem;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

a.category:hover,
a.tag:hover {
  opacity: 0.8;
}

a.category {
  background-color: #1f6feb;
  color: #fff;
}

a.tag {
  background-color: #21262d;
  color: #58a6ff;
}

.post-content {
  margin-top: 2rem;
}

.post-content img {
  display: block;
  margin: 1rem auto;
  width: 100%;
  height: auto;
}