body {
    background: url("./bkg.jpg");
    background-size: cover;
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;
}

#board {
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    background-color: whitesmoke;
    border: 10px solid lightgrey;
    width: 709px;
}

.card {
    width: 135px;
    height: 192px;
    margin: 3px;
}

h2 {
    color: white;
    text-align: center;
}

.banner {
    display: block;
    width: 90%;
    max-width: 700px;
    height: auto;
    margin: 10px auto;
    align-content: center;
}

button {
    background-color: #7c3aed;
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 18px;
    font-weight: bold;
    border-radius: 10px;
    cursor: pointer;
    margin-top: 15px;
}

button:hover {
    background-color: #6d28d9;
}
.worksheets {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.worksheets {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.worksheet {
    text-align: center;
}

.thumbnail {
    width: 200px; /* or any size that fits your page */
    height: auto;
    border: 2px solid #7c3aed;
    border-radius: 8px;
    display: block;
    margin-bottom: 10px;
}

.worksheet button {
    background-color: #7c3aed;
    color: white;
    border: none;
    padding: 8px 16px;
    font-size: 16px;
    border-radius: 6px;
    cursor: pointer;
}

.worksheet button:hover {
    background-color: #5b21b6;
}
.thanks-section {
    max-width: 800px;
    margin: 30px auto;
    padding: 20px;
    background: rgba(255,255,255,.08);
    border: 2px solid gold;
    border-radius: 12px;
    color: white;
    text-align: center;
}

.thanks-section h3 {
    color: gold;
    margin-bottom: 10px;
}