body, html {
  margin: 0;
  padding: 0;
  overflow: hidden;
  font-family: sans-serif;
}

#container {
  position: relative;
  width: 100%;
  height: 100vh;
}

.section {
  position: absolute;
  width: 100%;
  height: 100vh;
  transition: top 0.7s ease;
  display: flex;
  justify-content: center;
  align-items: center;
}

.section1 { background: #1e1e2f; }
.section2 { background: #283c63; }
.section3 { background: #197278; }

.content {
  text-align: center;
  color: white;
}

.content h2 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.content p {
  font-size: 1.5rem;
}

#sideMenu {
  position: fixed;
  top: 0;
  right: 0;
  width: 180px;
  height: 100%;
  background: rgba(0,0,0,0.9);
  color: white;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  z-index: 1000;
}

#sideMenu ul {
  list-style: none;
  padding: 30px;
}

#sideMenu li {
  margin: 20px 0;
}

#sideMenu a {
  color: white;
  text-decoration: none;
  font-size: 1.2rem;
}

/* 마우스 커서가 화면 오른쪽에 있을 때 메뉴 열기 */
#sideMenu {
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

#sideMenu.active {
  transform: translateX(0);
}