body {
  margin: 0;
  font-family: 'Noto Sans JP', sans-serif;
  background: linear-gradient(to bottom, #f0f4f8, #dbe9f4); 
  color: #2c3e50; 
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 2rem auto;
  padding: 1rem 2rem;
  background: rgba(255, 255, 255, 0.85); 
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  border-radius: 12px;
}

header {
  text-align: center;
  padding-bottom: 1rem;
  border-bottom: 2px solid #a3bfcf; 
}

h1 {
  font-weight: 700;
  font-size: 2.5rem;
  color: #1b2a41;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: 'Yu Mincho', serif; 
}

nav {
  margin-top: 1rem;
  text-align: center;
}

nav a {
  text-decoration: none;
  color: #4a6fa5; 
  margin: 0 1rem;
  font-weight: 600;
  transition: color 0.3s ease;
}

nav a:hover {
  color: #7b9acc; 
}

h2 {
  font-family: 'Yu Mincho', serif;
  font-weight: 600;
  color: #3a4a6f;
  border-left: 6px solid #7baedc; 
  padding-left: 0.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

button {
  background-color: #4a6fa5;
  color: white;
  border: none;
  border-radius: 24px;
  padding: 0.6rem 1.8rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(74, 111, 165, 0.3);
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #7baedc;
}

footer {
  text-align: center;
  padding: 1rem 0;
  font-size: 0.9rem;
  color: #7a8da6;
  border-top: 1px solid #cbd6e2;
  margin-top: 3rem;
}

body::before {
  content: "";
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  background-image: url('https://cdn-icons-png.flaticon.com/512/616/616408.png');
  background-repeat: repeat;
  background-size: 40px 40px;
  opacity: 0.05;
  pointer-events: none;
  z-index: -1;
}

@media (max-width: 600px) {
  .container {
    padding: 1rem;
    margin: 1rem;
  }

  header h1 {
    font-size: 1.8rem;
  }

  nav a {
    margin: 0 0.5rem;
    font-size: 0.9rem;
  }
}

img:hover {
	transform: scale(1.03);
	filter: saturate(150%);
}

img {
	border-radius: 16px !important;
	border-radius: 8px !important;
	border-style: ridge !important;
	border-color: #2596be !important;
}

p {
  font-family: 'Noto Sans JP', 'Yu Gothic', 'Hiragino Kaku Gothic Pro', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 1.1rem;
  line-height: 1.6;
  color: #333333; 
}
li {
  font-family: 'Noto Sans JP', 'Yu Gothic', 'Hiragino Kaku Gothic Pro', Meiryo, sans-serif;
  font-weight: 400;
  font-size: 1.1rem;
  line-height: 1.6;
  color: #333333; 
}