body {
  background: url('wallpaperr.jpg');
  background-size: cover;
  font-family: 'Dongle', sans-serif;
  margin: 0;
  padding-top: 100px;
  padding-bottom: 100px;
  display: flex;
  cursor: none;
}

#sidebar {
  width: 220px;
  background: #ccf3ff;
  padding: 40px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: fixed;
  height: 100%;
  left: 0;
  top: 0;
  z-index: 5;
}

.nav-btn {
  width: 180px;
  height: 60px;
  margin: 20px 0;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  display: block;
  border: none;
  text-indent: -9999px;
  border-radius: 10px;
  transition: transform 0.2s ease;
}

.nav-btn:hover {
  transform: scale(1.05);
}

/* 버튼 이미지 연결 */
.nav-about {
  background-image: url('icon1.jpg');
}
.nav-mii {
  background-image: url('btn-mii.png');
}
.nav-art {
  background-image: url('btn-art.png');
}
.nav-content {
  background-image: url('btn-content.png');
}

#main {
  flex-grow: 1;
  padding: 20px;
  background: rgba(255, 255, 255, 0.8);
  margin-left: 220px;
}

.dongle-regular {
  font-family: "Dongle", sans-serif;
  font-weight: 400;
  font-style: normal;
  font-size: 4em;
}

.seal-img {
  width: 100%;
  max-width: 500px;
  border-radius: 10px;
  box-shadow: 0 0 8px #888;
}

.note {
  font-size: 0.9em;
  color: #555;
  margin-top: 10px;
}

.top-banner {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100px;
  background-image: url('index-top.gif');
  background-repeat: repeat-x;
  background-size: contain;
  z-index: 10;
}

.bottom-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100px;
  background-image: url('bubble.gif'); 
  background-repeat: repeat-x;
  background-size: contain;
  z-index: 10;
}

/* 따라다니는 커서 이미지 */
#seal-cursor {
  position: fixed;
  width: 70px;
  height: 70px;
  pointer-events: none;
  z-index: 9999;
  left: 0;
  top: 0;
  transform: translate(-50%, -50%);
  transition: transform 0.05s linear;
}

.main-content {
  text-align: center;
}
