*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Arial, Helvetica, sans-serif;
}

body{
  background:linear-gradient(to right,#141e30,#243b55);
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
}

.container{
    background:white;
    width:800px;
    padding:30px;
    border-radius:20px;
    text-align:center;
}

h1{
    margin-bottom:20px;
}

#generateBtn{
    padding:12px 20px;
    border:none;
    background:#1d976c;
    color:white;
    border-radius:10px;
    cursor:pointer;
    margin-bottom:20px;
}

table{
    width:100%;
    border-collapse:collapse;
}

th, td{
    border:1px solid #ccc;
    padding:15px;
    text-align:center;
}

th{
    background:#1d976c;
    color:white;
}

.back-btn{
    display:block;
    margin-top:20px;
    text-decoration:none;
    color:#1d976c;
    font-weight:bold;
}