body{
font-family: Arial, sans-serif;
background:#eef2f7;
margin:0;
padding:40px;
}

.container{
max-width:700px;
margin:auto;
}

h1{
margin-bottom:5px;
}

.subtitle{
color:#777;
margin-bottom:25px;
}

.search-box{
background:white;
padding:25px;
border-radius:10px;
box-shadow:0 8px 20px rgba(0,0,0,0.1);
}

.row{
display:flex;
gap:15px;
margin-bottom:20px;
align-items:flex-end;
}

.field{
flex:1;
}

label{
display:block;
margin-bottom:5px;
font-size:14px;
}

select,input{
width:100%;
padding:10px;
border-radius:5px;
border:1px solid #ccc;
}

.swap{
background:#f0f3f7;
border:none;
padding:10px 15px;
border-radius:6px;
cursor:pointer;
font-size:18px;
}

.search-btn{
width:100%;
padding:14px;
background:#1976d2;
color:white;
border:none;
border-radius:6px;
font-size:16px;
cursor:pointer;
}

.search-btn:hover{
background:#145ea8;
}