/* Certificates Page Styles */
.page-content {
    padding: 120px 0 80px;
}

.page-header {
    text-align: center;
    margin-bottom: 60px;
}

.page-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--light-color);
}

.page-subtitle {
    font-size: 1.2rem;
    color: var(--gray-color);
    max-width: 700px;
    margin: 0 auto;
}

.content-grid {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 40px;
}

.filter-sidebar {
    background: var(--secondary-color);
    padding: 25px;
    border-radius: 10px;
    height: fit-content;
    position: sticky;
    top: 120px;
}

.filter-title {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.filter-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--dark-gray);
    color: var(--light-color);
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    text-align: left;
    transition: all 0.3s;
}

.filter-btn:hover, .filter-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.certificate-card {
    background: var(--secondary-color);
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.certificate-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.certificate-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.certificate-card:hover .certificate-image img {
    transform: scale(1.05);
}

.certificate-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

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

.view-btn {
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    transition: transform 0.3s;
}

.view-btn:hover {
    transform: scale(1.1);
}

.certificate-info {
    padding: 20px;
}

.certificate-info h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.certificate-meta {
    display: flex;
    gap: 15px;
    font-size: 0.9rem;
    color: var(--gray-color);
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 5px;
    background: var(--secondary-color);
    color: var(--light-color);
    text-decoration: none;
    transition: all 0.3s;
}

.pagination-btn:hover, .pagination-btn.active {
    background: var(--primary-color);
}

.pagination-btn.next {
    width: auto;
    padding: 0 20px;
}

/* Модальное окно сертификата */
.modal-certificate {
    display: block;
    grid-template-columns: 1fr 300px;
    gap: 30px;
}

#modal-cert-image {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.certificate-details {
    display: flex;
    flex-direction: column;
}

.certificate-details h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.cert-meta {
    /*display: flex;*/
    /*flex-direction: column;*/
    gap: 10px;
    margin-bottom: 30px;
    color: var(--gray-color);
}
.cert-meta span {
    margin-right: 10px;
}

#download-cert {
    margin-top: auto;
    align-self: flex-start;
}

/* Адаптивность */
@media (max-width: 992px) {
    .content-grid {
        grid-template-columns: 1fr;
    }

    .filter-sidebar {
        position: static;
    }

    .modal-certificate {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .page-header {
        margin-bottom: 30px;
    }

    .page-title {
        font-size: 2rem;
    }

    .certificates-grid {
        grid-template-columns: 1fr;
    }
}