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

.box{
width:350px;
background:white;
padding:30px;
margin:100px auto;
border-radius:15px;
}

.container{
max-width:900px;
margin:40px auto;
background:white;
padding:30px;
border-radius:15px;
}

input,select,button{
width:100%;
padding:12px;
margin-top:10px;
box-sizing:border-box;
}

button{
background:#111;
color:white;
border:0;
cursor:pointer;
}

.header{
display:flex;
justify-content:space-between;
align-items:center;
}

.file-card{
border:1px solid #ddd;
padding:15px;
margin-top:15px;
border-radius:10px;
}

.file-card img{
max-width:200px;
}