body {
    font-family: 'Open Sans', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #FFFFFF;
    color: #0A3D62;
}

header {
    background-color: #0A3D62;
    color: #FFFFFF;
    padding: 10px 20px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 15px;
}

.nav-links a {
    color: #FFFFFF;
    text-decoration: none;
    font-weight: bold;
}

.hero {
    text-align: center;
    padding: 50px;
    background: url('https://via.placeholder.com/1200x400') no-repeat center center/cover;
    color: #FFFFFF;
}

.hero button {
    background-color: #F39C12;
    color: #FFFFFF;
    border: none;
    padding: 15px 30px;
    font-size: 18px;
    cursor: pointer;
}

.diensten {
    padding: 20px;
    text-align: center;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.dienst {
    background-color: #F39C12;
    color: #FFFFFF;
    padding: 20px;
    border-radius: 5px;
}

.planmodule {
    padding: 20px;
    background-color: #f4f4f4;
}

form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 400px;
    margin: auto;
}

button[type='submit'] {
    background-color: #0A3D62;
    color: #FFFFFF;
    padding: 10px;
    border: none;
    cursor: pointer;
}

footer {
    text-align: center;
    padding: 10px;
    background-color: #0A3D62;
    color: #FFFFFF;
}