body{
    margin:0;
    font-family:Arial;
    background:#f4f4f4;
    color:#222;
}
header{
    background:#0B1F3A;
    padding:15px 0;
}
.container{
    width:90%;
    margin:auto;
}
.nav{
    display:flex;
    justify-content:space-between;
    align-items:center;
}
nav a{
    color:#fff;
    margin-left:15px;
    text-decoration:none;
}
.hero{
    background:#007BFF;
    color:#fff;
    padding:100px 0;
    text-align:center;
}
.btn{
    background:#fff;
    color:#007BFF;
    padding:10px 20px;
    text-decoration:none;
    border-radius:5px;
}
.section{
    padding:50px 0;
}
.grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:20px;
}
.card{
    background:#fff;
    padding:20px;
    border-radius:10px;
    box-shadow:0 0 10px rgba(0,0,0,0.1);
}
footer{
    background:#0B1F3A;
    color:#fff;
    padding:20px 0;
    text-align:center;
}
input, textarea{
    width:100%;
    padding:10px;
    margin-bottom:10px;
}