body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333333;
}

header {
    background: #151f42;
    color: #ffffff;
    padding: 40px 0px;
    text-align: center;
    margin-bottom: 20px;
}

section {
    padding: 10px 0;
    background: #ffffff;
    margin-bottom: 20px;
    text-align: center;
}

section h1 {
    color: #151f42;
    font-size: 2.0rem;
}

section h2 {
    color: #151f42;
    font-size: 1.5rem;
}

.container {
    width: 90%;
    max-width: 1000px;
    margin: auto;
    padding: 10px 0px;
}

.grid {
    display: inline-flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin: 30px 0px;
}

.card {
    background: #e8f0fe;
    padding: 20px;
    flex: 1;
    min-width: 300px;
    max-width: 420px;
    border-radius: 8px;
    text-align: center;
}

footer {
    background: #151f42;
    color: #ffffff;
    text-align: center;
    padding: 10px 0;
}