* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: #f1f5f9;
    color: #1e293b;
    line-height: 1.6;
}

header {
    background: #12345a;
    color: white;
    text-align: center;
    padding: 45px 20px;
}

header h1 {
    font-size: 42px;
}

nav {
    background: #0f172a;
    padding: 15px;
    text-align: center;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
}

nav a:hover {
    color: #38bdf8;
}

main {
    max-width: 1000px;
    margin: 30px auto;
    padding: 0 20px;
}

section {
    background: white;
    padding: 30px;
    margin-bottom: 25px;
    border-radius: 12px;
    box-shadow: 0 3px 10px #00000015;
}

section h2 {
    color: #12345a;
    margin-bottom: 15px;
}

.destaque {
    text-align: center;
    padding: 50px 25px;
}

button {
    background: #12345a;
    color: white;
    border: none;
    padding: 12px 25px;
    margin-top: 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background: #2563eb;
}

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

.card {
    flex: 1;
    min-width: 180px;
    background: #eaf2ff;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

.card h3 {
    color: #12345a;
    margin-bottom: 10px;
}

footer {
    background: #0f172a;
    color: white;
    text-align: center;
    padding: 20px;
}