.stress-certificate-container {
    text-align: center;
    margin: 20px 0;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 8px;
}

.certificate-image {
    margin-bottom: 20px;
}

.certificate-img {
    max-width: 100%;
    height: auto;
    border: 2px solid #ddd;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.certificate-actions {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.1em;
    font-family: Tahoma;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-print {
    background: #3498db;
    color: white;
}

.btn-print:hover {
    background: #2980b9;
}

.btn-download {
    background: #27ae60;
    color: white;
}

.btn-download:hover {
    background: #229954;
}

.alert {
    padding: 15px;
    margin: 20px 0;
    border-radius: 5px;
    font-family: Tahoma;
}

.alert-warning {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
}

.alert-danger {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.alert-info {
    background: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}

.alert-error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

@media print {
    body * {
        visibility: hidden;
    }
    .certificate-img {
        visibility: visible;
        position: absolute;
        left: 0;
        top: 0;
        width: 100% !important;
        max-width: none !important;
    }
    .certificate-actions {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .certificate-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
    }
}