.mesaj-defteri {
  max-width: 600px;
  margin: 20px auto;
  padding: 20px;
  background: #f9f9f9;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.mesaj-defteri h3 {
  color: #333;
  margin-bottom: 15px;
}

#mesaj-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

#mesaj-form input,
#mesaj-form textarea {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
}

#mesaj-form textarea {
  min-height: 80px;
  resize: vertical;
}

#mesaj-form button {
  padding: 10px 20px;
  background: #0073aa;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
}

#mesaj-form button:hover {
  background: #005177;
}

#sonuc {
  padding: 10px;
  margin: 10px 0;
  border-radius: 4px;
}

#sonuc.basarili {
  background: #d4edda;
  color: #155724;
}

#sonuc.hata {
  background: #f8d7da;
  color: #721c24;
}

.mesaj-item {
  background: white;
  padding: 15px;
  margin-bottom: 10px;
  border-radius: 4px;
  border-left: 3px solid #0073aa;
}

.mesaj-item strong {
  color: #0073aa;
  display: block;
  margin-bottom: 5px;
}

.mesaj-item p {
  margin: 5px 0;
  color: #333;
}

.mesaj-item small {
  color: #999;
  font-size: 12px;
}