*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:'Poppins',sans-serif;
}

body{
background:#f9f9f9;
color:#333;
}

/* TOPBAR */
.topbar{
background:#0A3150;
color:#fff;
padding:10px;
display:flex;
justify-content:space-between;
}

/* HEADER */
header{
text-align:center;
padding:60px 20px;
background:#0A3150;
color:#fff;
}

header h1{
font-size:30px;
margin-bottom:10px;
}

.btn{
display:inline-block;
padding:10px 20px;
background:#ff9100;
color:#fff;
text-decoration:none;
border-radius:20px;
margin-top:10px;
}

/* NAV */
nav{
margin-top:20px;
}

nav a{
margin:0 10px;
color:#fff;
text-decoration:none;
}

/* SECTION */
section{
padding:50px 20px;
text-align:center;
}

.grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:20px;
margin-top:20px;
}

.card{
background:#fff;
padding:20px;
border-radius:10px;
box-shadow:0 5px 10px rgba(0,0,0,0.1);
}

/* FOOTER */
footer{
background:#031b2d;
color:#fff;
text-align:center;
padding:20px;
}