body {
  font-family: "Helvetica Neue", sans-serif;
  background-color: #f9f9f9;
  margin: 0;
  padding: 0;
  text-align: center;
  color: #333;
}

h1 {
  background-color: #ffcc80;
  padding: 20px;
  margin: 0;
  font-size: 24px;
  color: #444;
}

#map {
  height: 420px; /* 地図が表示されない原因はほぼここ */
  width: 90%;
  max-width: 800px;
  margin: 30px auto 20px;
  border-radius: 14px;
  border: 4px solid #ffcc80;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

button#checkBtn {
  background-color: #ff9800;
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 6px;
  margin-bottom: 20px;
}

button#checkBtn:hover {
  background-color: #e68900;
}

#result {
  margin: 20px auto;
  width: 90%;
  max-width: 800px;
  text-align: left;
}

#result p {
  background-color: #fff;
  padding: 12px;
  border-radius: 6px;
  margin: 8px 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

p.got {
  background-color: #d4edda;
  border-left: 6px solid #28a745;
}

#stampList {
  list-style: none;
  padding: 0;
  margin: 20px auto;
  width: 90%;
  max-width: 800px;
}

#stampList li {
  background-color: #fff;
  padding: 10px;
  border-bottom: 1px solid #eee;
  text-align: left;
}