/* Shared top bar when reading an article */
.article-nav {
  position: sticky;
  top: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  background: rgba(26, 18, 9, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(212, 201, 176, 0.25);
}

.article-nav__back {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #f5f0e8;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.2s ease, letter-spacing 0.2s ease;
}

.article-nav__back::before {
  content: "←";
  font-size: 0.85rem;
  letter-spacing: 0;
  opacity: 0.85;
}

.article-nav__back:hover {
  color: #e67e22;
  letter-spacing: 0.26em;
}

.article-nav__hint {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(245, 240, 232, 0.45);
}

@media (max-width: 520px) {
  .article-nav__hint {
    display: none;
  }
}