body, html {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  height: 100%;
}

.hero {
  position: relative;
  height: 100vh;
  background-image: url("../img/haikei.png"); /* 画像名は差し替えてね */
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.side-nav {
  position: absolute;
  left: 30px;
  top: 50%;
  transform: translateY(-50%);
}

.side-nav ul {
  list-style: none;
  padding: 0;
}

.side-nav li {
  margin-bottom: 15px;
}

.side-nav a {
  text-decoration: none;
  color: white;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.side-nav a:hover {
  transform: translateX(5px);
  color: #ffcc00;
}

.logo-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: fadeIn 2s ease-in-out;
}

.logo-container img {
  width: 60vw;
  max-width: 600px;
}

.menu-btn {
  position: absolute;
  top: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background-color: black;
  border: none;
  cursor: pointer;
  z-index: 1000;
}


a:hover{
	color:orangered;
}

/* アニメーション */
@keyframes fadeIn {
  0% { opacity: 0; transform: translate(-50%, -60%); }
  100% { opacity: 1; transform: translate(-50%, -50%); }
}

.footer {
  position: absolute;
  bottom: 20px;
  width: 100%;
  text-align: center;
  color: white;
}

.footer p {
  margin: 5px 0;
}

.social-icons a {
  color: white;
  margin: 0 10px;
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.social-icons a:hover {
  transform: scale(1.3);
  color: #ffcc00;
}