body {
font-family: Arial, sans-serif;
margin: 0;
background: #f4f6f9;
}

header {
text-align: center;
padding: 60px 20px;
background: #0b3556;
color: white;
}

.ctaButton {
display: inline-block;
margin-top: 15px;
padding: 12px 24px;
background: white;
color: #0b3556;
text-decoration: none;
border-radius: 6px;
}

.hero,
.certificate,
#programs,
#details {
width: 90%;
max-width: 1100px;
margin: auto;
padding: 40px 0;
}

.programGrid {
display: flex;
gap: 20px;
flex-wrap: wrap;
}

.card {
flex: 1;
min-width: 250px;
background: white;
padding: 20px;
border-radius: 8px;
box-shadow: 0 2px 8px rgba(0,0,0,.1);
}

.card button {
padding: 10px 15px;
cursor: pointer;
}

.certificateSample {
background: white;
padding: 40px;
text-align: center;
font-weight: bold;
border: 2px solid #0b3556;
margin-top: 20px;
}

footer {
background: #0b3556;
color: white;
text-align: center;
padding: 20px;
}