.post-nav { border: 1px solid #dee2e6; border-radius: 8px; overflow: hidden; margin-bottom: 1.5rem; }
.post-nav-item { display: flex; align-items: center; padding: .65rem 1rem; gap: .75rem; text-decoration: none; color: inherit; border-bottom: 1px solid #f0f0f0; transition: background .15s; }
.post-nav-item:last-child { border-bottom: none; }
.post-nav-item:hover { background: #f8f9fa; color: inherit; text-decoration: none; }
.post-nav-label { font-size: .75rem; color: #6c757d; min-width: 52px; font-weight: 600; }
.post-nav-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .9rem; }
.post-nav-none { padding: .65rem 1rem; color: #adb5bd; font-size: .85rem; border-bottom: 1px solid #f0f0f0; display: flex; align-items: center; gap: .75rem; }
.post-nav-none:last-child { border-bottom: none; }