.certificat-container {
    max-width: 900px;
    margin: 30px auto;
    padding: 30px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 20px rgba(58, 33, 88, 0.08);
    border: 1px solid rgba(117, 18, 230, 0.1);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.certificat-container h2 {
    text-align: center;
    margin-bottom: 30px;
    color: rgb(117, 18, 230);
    font-size: 28px;
    font-weight: 600;
}

.certificat-box {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    padding: 20px;
    background: #fafafa;
    border-radius: 8px;
    border: 1px solid #e8e8e8;
}

#cert-num {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    background: #ffffff;
    color: #333;
    outline: none;
}

#cert-num:focus {
    border-color: rgb(117, 18, 230);
    box-shadow: 0 0 0 3px rgba(117, 18, 230, 0.1);
}

#cert-btn {
    padding: 15px 30px;
    background: rgb(117, 18, 230);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

.cert-result { margin-top: 20px; }

.cert-success { padding: 25px; background: #fff; border: 2px solid #e8f5e8; border-radius: 12px; }
.cert-success-title { text-align: center; font-size: 20px; color: rgb(117, 18, 230); margin-bottom: 15px; }

.cert-info-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.cert-info-table th, .cert-info-table td { padding: 15px 20px; border: 1px solid #e0e0e0; text-align: right; }
.cert-info-table th { background: #fafafa; font-weight: 600; color: #555; width: 35%; }
.cert-info-table td { background: #fff; font-weight: 500; color: #333; }

.cert-error { background: #fff0f0; border: 2px solid #ffe6e6; border-radius: 8px; padding: 20px; text-align: center; color: #d63031; font-size: 16px; }