body {
  margin: 0;
  font-family: sans-serif;
  background: #eef3f7;
}

.container {
  width: 90%;
  max-width: 900px;
  margin: 20px auto;
  padding: 20px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

h1 {
  text-align: center;
  margin-top: 0;
  margin-bottom: 12px;
}

.desc {
  text-align: center;
  font-size: 14px;
  color: #555;
  margin-top: 0;
  margin-bottom: 8px;
}

.group-label {
  text-align: center;
  font-size: 16px;
  margin: 0 0 10px;
}

#groupName {
  font-weight: bold;
  color: #0077cc;
}

#map {
  width: 100%;
  height: 500px;
  border-radius: 10px;
  overflow: hidden;
  margin-top: 8px;
}