.credit-check-box {
    background: #fff;
    padding: 25px;
    margin: 20px auto;
    border-radius: 12px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.1);
    max-width: 900px;
    font-family: "Segoe UI", Tahoma, sans-serif;
}
.credit-check-box h2 {
    text-align: center;
    margin-bottom: 20px;
}
.credit-form {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.credit-form label {
    display: flex;
    flex-direction: column;
    font-size: 14px;
}
.credit-form input[type=text] {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
}
.credit-form button {
    background: #3b82f6;
    border: none;
    color: #fff;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
}
.credit-form button:hover { background: #2563eb; }
.credit-result { margin-top: 20px; }
.credit-table-box { margin: 15px 0; }
.credit-table-box h3 {
    background: #aa8666;
    color: #fff;
    padding: 7px;
    margin: 0;
    border-radius: 6px 6px 0 0;
}
.credit-table {
    width: 100%;
    border-collapse: collapse;
    background: #fafafa;
}
.credit-table td {
    border: 1px solid #ddd;
    padding: 8px;
}
.credit-table .total td {
    font-size: 16px;
    font-weight: bold;
    background: #f0f0f0;
}
.red { color: #d00; }
.green { color: #090; }
.payment-info {
    margin-top: 15px;
    padding: 12px;
    background: #f9fafb;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
}
.error-box {
    margin: 20px 0;
    padding: 15px;
    background: #fee2e2;
    border: 1px solid #fca5a5;
    color: #b91c1c;
    border-radius: 6px;
    text-align: center;
}