body{
font-family:Arial;
background:#f2f2f2;
margin:0;
}

header{
background:#1e3c72;
color:white;
padding:20px;
text-align:center;
}

.container{
max-width:900px;
margin:auto;
background:white;
padding:20px;
margin-top:20px;
border-radius:8px;
}

input,button{
padding:10px;
margin:5px;
}

button{
background:#4CAF50;
color:white;
border:none;
cursor:pointer;
}

table{
width:100%;
border-collapse:collapse;
margin-top:15px;
}

td{
border:1px solid #ddd;
padding:10px;
}