.certificate-card {
    background: rgba(45, 27, 105, 0.3);
    border-radius: 15px;
    padding: 25px;
    height: 100%;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.certificate-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    background: rgba(45, 27, 105, 0.4);
}

.certificate-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.certificate-icon {
    font-size: 2rem;
    color: var(--secondary-color);
}

.certificate-header h4 {
    margin: 0;
    font-size: 1.5rem;
}

.certificate-issuer {
    color: var(--secondary-color);
    font-size: 1rem;
    margin-bottom: 5px;
}

.certificate-date {
    color: var(--paragraph-color);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.certificate-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.certificate-link:hover {
    color: var(--secondary-color);
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .certificate-header h4 {
        font-size: 1.25rem;
    }
}