/* Certificates Section */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.certificate-card {
    background: var(--bg-secondary);
    border-radius: 20px;
    overflow: hidden;
    border: 2px solid var(--bg-tertiary);
    transition: var(--transition);
    cursor: pointer;
}

.certificate-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-primary);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.3);
}

.certificate-image {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
    background: var(--accent-gradient);
}

.certificate-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.certificate-card:hover .certificate-image img {
    transform: scale(1.1);
}

.certificate-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(99, 102, 241, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.certificate-card:hover .certificate-overlay {
    opacity: 1;
}

.certificate-overlay i {
    font-size: 5rem;
    color: white;
    animation: pulse 2s ease-in-out infinite;
}

.certificate-content {
    padding: 2rem;
}

.certificate-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 800;
}

.certificate-org,
.certificate-date {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.certificate-org i,
.certificate-date i {
    color: var(--accent-primary);
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .certificate-image {
        height: 220px;
    }
}