#blok {
    background-color: #f8f9ff;
    color: #054893;
    padding: 30px;
    border-radius: 12px;
    border-left: 6px solid #007bff;
    max-width: 900px;
    margin: 20px auto;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

#blok h1 {
    color: #054893;
    font-size: 30px;
    margin: 0 0 16px;
}

#blok .open-modal {
    background-color: #007bff;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    font-weight: bold;
}

#blok h2 {
    font-size: 25px;
    margin: 0 0 6px;
}

#blok h3 {
    font-size: 20px;
    margin: 0 0 6px;
}