body{
font-family: Arial, sans-serif;
margin:0;
background:#f5f7fb;
color:#222;
}

header{
padding:40px;
text-align:center;
background:#111;
color:white;
}

.container{
max-width:800px;
margin:auto;
padding:40px;
}

form{
display:flex;
flex-direction:column;
gap:15px;
}

input,button{
padding:12px;
font-size:16px;
}

button{
background:black;
color:white;
border:none;
cursor:pointer;
}