@media print {
    body {
        background-color: #ffffff !important;
        color: #000000 !important;
        font-family: 'Times New Roman', serif;
    }

    .no-print, header, footer, nav, .btn {
        display: none !important;
    }

    .print-certificate-container {
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        border: 2px solid #000 !important;
    }
}

.certificate-box {
    border: 2px solid #1a365d;
    padding: 20px;
    background: #fff;
    max-width: 850px;
    margin: 20px auto;
}

.certificate-header {
    text-align: center;
    border-bottom: 2px double #1a365d;
    padding-bottom: 12px;
    margin-bottom: 20px;
}

.certificate-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.certificate-table th, .certificate-table td {
    border: 1px solid #333;
    padding: 8px 12px;
    font-size: 14px;
}

.certificate-table th {
    background-color: #f1f5f9;
    font-weight: bold;
}