/* Basisstijl */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #2a2a2a;
    line-height: 1.6;
}

header {
    position: relative;
    padding: 1rem 2rem;
    /* fallback color and banner image with a dark overlay for contrast */
    background-color: #0070f3;
    background-image: linear-gradient(rgba(0,0,0,0.45), rgba(0,0,0,0.25)), url('titlebanner.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
    height: 80px;
    overflow: hidden;
}

header img.logo {
    height: 60px;
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 8px;
}

header h1 {
    font-size: 1.8rem;
    margin: 0;
    text-align: center;
    line-height: 80px;
    text-shadow: 0 1px 2px rgba(0,0,0,0.6);
}

main {
    padding: 2rem;
    max-width: 900px;
    margin: auto;
    position: relative;
}

ul {
    padding-left: 1.5rem;
}

.source-link {
    display: inline-block;
    margin-top: 3rem;
    color: #0070f3;
    text-decoration: underline;
    cursor: pointer;
    font-size: 1rem;
}

.source-link:hover {
    color: #005bb5;
}

.info-panel {
    background: #fff;
    padding: 2rem;
    width: 75%;
    border-radius: 12px;
    position: relative;
}

/* QR-code rechts met drop-shadow */
.qr {
    position: absolute;
    top: 50%;
    right: -120px;
    transform: translateY(-50%);
    width: 200px;
    height: 200px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.6);
    border-radius: 8px;
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .qr {
        position: static;
        transform: none;
        width: 0px;
        height: 0px;
        margin: 1rem auto;
        display: block;
    }
    header {
        height: auto;
        padding: 1rem;
    }
    header h1 {
        line-height: normal;
        margin-left: 70px;
    }
    header img.logo {
        position: static;
        transform: none;
        height: 48px;
        border-radius: 8px;
        margin-bottom: 0.5rem;
    }
    main {
        padding: 1rem;
    }
    .info-panel {
        box-shadow: 0 6px 18px rgba(0,0,0,0.1);
    }
}