body {
  margin: 0;
  overflow: hidden;
  font-family: Arial, sans-serif;
  color: #fff;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

#bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1; /* biar jadi background */
  background: #000;
}

.menu {
  text-align: center;
  z-index: 1;
}

h1 {
  margin-bottom: 30px;
  font-size: 2em;
  letter-spacing: 2px;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

ul li {
  background: rgba(0,0,0,0.6);
  margin: 10px auto;
  padding: 12px 30px;
  width: 250px;
  border: 2px solid #444;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.2s;
  font-size: 18px;
}

ul li:hover {
  background: rgba(0,255,255,0.2);
  border-color: #00ffff;
  color: #00ffff;
}

.desc {
  margin-top: 30px;
  font-size: 14px;
  color: #bbb;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}