body {
  margin: 0;
  font-family: system-ui, Arial, sans-serif;
  background: #f9fafb;
}

#postControls {
  padding: 10px;
}

h2 {
  margin: 4px 0 8px;
  font-size: 16px;
}

h3 {
  margin: 8px 0 4px;
  font-size: 14px;
}

.btn-group {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

/* Boutons : on force l'apparence pour éviter le style natif blanc */
button {
  background-color: #e5e7eb;
  color: #111827;
  border: 1px solid #9ca3af;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

button:hover {
  background-color: #d1d5db;
}

/* Bouton actif clairement visible */
button.active {
  background-color: #2563eb;
  color: #ffffff;
  border-color: #1d4ed8;
}