body {
    font-family: system-ui, sans-serif;
    margin: 0;
    line-height: 1.6;
    color: #333
}

nav {
    display: flex;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: #17324d;
    color: #fff
}

nav a, .logo {
    color: #fff;
    text-decoration: none
}

nav ul {
    display: flex;
    gap: 1rem;
    list-style: none
}

.hero {
    padding: 5rem 2rem;
    text-align: center;
    background: #eef5fb
}

.btn {
    display: inline-block;
    padding: .8rem 1.2rem;
    background: #2d6cdf;
    color: #fff;
    text-decoration: none;
    border-radius: 6px
}

.cards {
    display: grid;
    grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    padding: 1rem 0
}

.card {
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1rem
}

section {
    max-width: 1100px;
    margin: auto;
    padding: 2rem
}

footer {
    text-align: center;
    padding: 2rem;
    background: #17324d;
    color: #fff
}