body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.chat-button {
  position: fixed;
  top: 20px;
  left: 20px;
  background-color: #005f99;
  color: white;
  border: none;
  padding: 12px 16px;
  font-size: 18px;
  border-radius: 50px;
  cursor: pointer;
  z-index: 1000;
  box-shadow: 0 4px 6px rgba(0,0,0,0.2);
}

.chat-modal {
  position: fixed;
  top: 80px;
  left: 20px;
  width: 300px;
  background-color: white;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.2);
  padding: 20px;
  z-index: 999;
  transition: all 0.3s ease;
}

.chat-modal.hidden {
  display: none;
}

.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.close-button {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
}

.chat-content a {
  color: #005f99;
  text-decoration: none;
  display: block;
  margin-bottom: 10px;
}

.chat-content a:hover {
  text-decoration: underline;
}