/* Grundlegendes */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: #f5f7fa;
    color: #1f2937;
    line-height: 1.6;
}

/* Hauptinhalt */
body {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px 60px;
}

/* Überschriften */
h1 {
    font-size: 2.5rem;
    text-align: center;
    margin: 0 0 35px;
    color: #111827;
}

h2 {
    font-size: 1.5rem;
    margin-top: 35px;
    margin-bottom: 15px;
    color: #374151;
}

/* Download-Link */
.link {
    background: white;
    border-radius: 12px;
    padding: 18px 22px;
    margin-bottom: 35px;

    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}

.link:hover {
    transform: translateY(-2px);
    box-shadow: 0 7px 20px rgba(0, 0, 0, 0.12);
}

.link a {
    color: #007aff;
    font-weight: 600;
    text-decoration: none;
    font-size: 1.05rem;
}

.link a:hover {
    text-decoration: underline;
}

/* Tutorial-Bilder */
img {
    display: block;
    width: 100%;
    max-width: 400px;
    height: auto;

    margin: 25px auto;

    border-radius: 14px;
    background: white;

    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.10);
}

/* Auf kleinen Bildschirmen */
@media (max-width: 600px) {
    body {
        padding: 25px 14px 40px;
    }

    h1 {
        font-size: 2rem;
        margin-bottom: 25px;
    }

    h2 {
        font-size: 1.3rem;
    }

    .link {
        padding: 15px 18px;
    }

    img {
        margin: 18px auto;
        border-radius: 10px;
    }
}