body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    background-color: #fff;
    color: #333;
}
header {
    background: #4CAF50;
    color: #fff;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}
header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
}
header h1 {
    font-size: 1.8em;
}
nav a {
    color: white;
    text-decoration: none;
    margin: 0 10px;
}
nav a:hover {
    text-decoration: underline;
}
.hero {
    padding-top: 90px; /* sorgt für Abstand unter dem fixierten Header */
    text-align: center;
}
.container {
    width: 90%;
    max-width: 1000px;
    margin: 0 auto;
}
img.hero-img {
    width: 100%;
    max-width: 600px;
    margin-top: 20px;
    border-radius: 10px;
}
img.content-img {
    width: 100%;
    max-width: 600px;
    height: auto;
    border-radius: 10px; /* sorgt für abgerundete Ecken */
    display: block;
    margin: 20px auto; /* mittig zentriert */
}
.buy-buttons {
    margin: 20px 0;
}
.paypal-btn {
    background-color: #ffc439;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
}
footer {
    text-align: center;
    padding: 20px;
    background-color: #f0f0f0;
    margin-top: 40px;
}
@media (max-width: 600px) {
    header h1 {
        font-size: 1.4em;
    }
}