body {
  background-color: #75c6d1; 
  color: #343a40;
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding: 0;
}

.container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh; /* 画面全体の高さをカバー */
}

h1 {
  font-size: 2.5rem;
  color:#0c5b7a;
  margin-bottom: 20px;
}

a {
  font-size: 1.2rem;
  text-decoration: none;
  color: #0c5b7a;
  padding: 10px 20px;
  border: 2px solid #0c5b7ai;
  border-radius: 5px;
  background-color: #e8f6f7;
  transition: background-color 0.3s, color 0.3s;
}

a:hover {
  background-color: #f56845;
  color: #0c5b7a; 
}

.spacer {
  height: 30px;
}