/* พื้นหลังและฟอนต์ */
body {
  margin: 0;
  font-family: 'Arial', sans-serif;
  background-color: #000;
  color: #ccc;
}

/* โครงสร้าง */
.container {
  display: flex;
  height: 100vh;
}

/* เมนูด้านซ้าย */
.sidebar {
  width: 200px;
  background: linear-gradient(to bottom, #444, #222, #000);
  padding: 120px 0;
}

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

.sidebar ul li {
    
  margin: 15px 8px;
  text-align:left;
}

.sidebar ul li a {
    font-size: 20px;
  color: #66ccff;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
}

.sidebar ul li a:hover {
  color: #ffffff;
  text-shadow: 0 0 10px #66ccff;
}

/* เนื้อหา */
.content {
  flex: 1;
  padding: 40px;
  animation: fadeIn 1s ease-in-out;
}

h1#main-title {
  color: #66ccff;
  text-shadow: 0 0 10px #66ccff;
  animation: popIn 1s ease-out;
}

/* Animation */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes popIn {
  0% {
    transform: scale(0.5);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}
.box{
    margin-top: 80px;
    margin-left: 30%;
    padding-top: 20px;
    padding-left: 20px;
    width: 40%;
    height: 300px;
    border-radius: 30px;
    box-shadow: 5px 5px 5px #b0d5e7;
}