body {
  background-color: #000000;
  text-align: center;
  font-family: serif;
}

.title {
  margin-top: 30px;
  margin-bottom: 20px;
  color: #fff236;
  font-size: 32px;
  letter-spacing: 0.15em;
  font-weight: normal;
}

.calendar-container {
  margin: 40px auto;
  width: 600px;
}

.calendar-image {
  width: 200px;   /* ← ここを好みで調整（例：450〜520） */
  max-width: 70%;
}


.calendar-container img {
  width: 100%;
  transition: opacity 0.4s ease;
}

button {
  margin-top: 20px;
  padding: 10px 24px;
  font-size: 16px;
  border: none;
  border-radius: 20px;
  background-color: #f2e85c;
  cursor: pointer;
}

button:hover {
  opacity: 0.8;
}