body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f0f9ff;
}

main.container {
    max-width: 850px;
    margin: auto;
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.inhaltsverzeichnis-ueberschrift {
    text-align: center;
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 20px;
}

.input-area label {
    display: block;
    margin-top: 10px;
    font-weight: bold;
}

select, input[type="number"] {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    box-sizing: border-box;
    font-size: 16px;
}

.tip-box {
    background: #e8f4ff;
    border-left: 5px solid #007acc;
    padding: 12px;
    font-size: 16px;
    border-radius: 6px;
    margin-top: 20px;
}

.aktionen {
    margin-top: 30px;
    text-align: center;
}

button {
    padding: 10px 16px;
    font-size: 15px;
    background-color: #007acc;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}