.certificates-cards-modal {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.6rem;
    padding: 1rem;
    width: 100%;
    margin: 0 auto;
}

.certificates-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.certificates-card i {
    font-size: 7rem;
    margin-bottom: 1rem;
}

.certificates-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--half-opacity-color);
    backdrop-filter: blur(1rem);
    z-index: 1000;
    overflow-y: auto;
    box-sizing: border-box;
}

.modal-content {
    position: relative;
    animation: modalFadeIn 0.3s ease-out;
    text-align: center;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 25px;
    font-size: 28px;
    font-weight: bold;
    color: #333;
    cursor: pointer;
    transition: color 0.2s;
}

.close-modal:hover {
    color: #ff4757;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 1rem;
}

.certificate-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem!important;
}

.certificate-card:hover {
    transform: translateY(-5px);
    background: var(--card-hover-color);
}

.certificate-img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

@media (max-width: 768px) {
    .certificates-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .modal-content {
        margin: 5% auto;
        width: 90%;
        padding: 1.2rem;
    }
}

@media (max-width: 480px) {
    .certificates-grid {
        grid-template-columns: 1fr;
    }

    .certificate-img {
        height: auto;
    }
}
@media (min-width: 1800px) {
    .certificates-cards-modal {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1200px) and (max-width: 1799px) {
    .certificates-cards-modal {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 900px) and (max-width: 1199px) {
    .certificates-cards-modal {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 600px) and (max-width: 899px) {
    .certificates-cards-modal {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 599px) {
    .certificates-cards-modal {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .certificates-card {
        padding: 1rem;
        min-height: 8rem;
    }

    .certificates-card i {
        font-size: 6.5rem;
        margin-bottom: 0.8rem;
    }
}

@media (max-width: 400px) {
    .certificates-cards-modal {
        grid-template-columns: 1fr;
    }
}