/* Certification Page Styles */

/* Certifications Grid */
.certifications-grid {
    margin-bottom: 2rem;
}

/* CSS Variables for consistent theming - Blue/Light Gray Color Scheme */
:root {
    --cert-primary-color: #0d6efd;        /* Bootstrap primary blue */
    --cert-primary-light: #b6d7ff;        /* Light blue for backgrounds */
    --cert-primary-hover: #0b5ed7;        /* Darker blue for hover states */
    --cert-secondary-color: #6c757d;      /* Gray for secondary elements */
    --cert-accent-color: #e3f2fd;         /* Very light blue for accents */
    --cert-text-primary: #212529;         /* Dark text */
    --cert-text-secondary: #6c757d;       /* Gray text */
    --cert-text-muted: #adb5bd;           /* Light gray text */
    --cert-border-color: #dee2e6;         /* Light border */
    --cert-border-color-hover: #0d6efd;   /* Blue border on hover */
    --cert-background-light: #f8f9fa;     /* Light background */
    --cert-background-card: #ffffff;      /* Card background */
    --cert-border-radius: 0.375rem;
    --cert-box-shadow: 0 0.125rem 0.25rem rgba(13, 110, 253, 0.075);
    --cert-box-shadow-hover: 0 0.5rem 1rem rgba(13, 110, 253, 0.15);
    --cert-transition: all 0.3s ease;
}

.certification-card {
    background: var(--cert-background-card);
    border-radius: var(--cert-border-radius);
    box-shadow: var(--cert-box-shadow);
    transition: var(--cert-transition);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--cert-border-color);
}

.certification-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--cert-box-shadow-hover);
    border-color: var(--cert-border-color-hover);
    background: var(--cert-accent-color);
}

.certification-image {
    position: relative;
    overflow: hidden;
    height: 240px;
    background: var(--cert-background-light);
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--cert-border-color);
}

.certification-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
    padding: 10px;
}

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

.certification-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--cert-text-muted);
    font-size: 3rem;
    transition: var(--cert-transition);
}

.certification-info {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    text-align: center;
}

.certification-title {
    margin-bottom: 0.75rem;
    color: var(--cert-text-primary);
    font-weight: 600;
    font-size: 1.1rem;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.certification-filename {
    color: var(--cert-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.certification-actions {
    margin-top: auto;
}

.certification-actions .btn {
    width: 100%;
    padding: 0.5rem;
    font-weight: 500;
    border-radius: var(--cert-border-radius);
    transition: var(--cert-transition);
}

.certification-actions .btn-primary {
    background: var(--cert-primary-color);
    border-color: var(--cert-primary-color);
    color: #ffffff;
}

.certification-actions .btn-primary:hover {
    background: var(--cert-primary-hover);
    border-color: var(--cert-primary-hover);
    transform: translateY(-1px);
    color: #ffffff;
    box-shadow: 0 0.25rem 0.5rem rgba(13, 110, 253, 0.25);
}

/* Modal Styles */
.modal-content {
    border-radius: var(--cert-border-radius);
    border: none;
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

.modal-header {
    background: var(--cert-primary-color);
    color: #ffffff;
    border-bottom: none;
    border-radius: var(--cert-border-radius) var(--cert-border-radius) 0 0;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
}

.certificate-image-container {
    max-height: 60vh;
    overflow: hidden;
    border-radius: var(--cert-border-radius);
}

.certificate-image-container img {
    max-width: 100%;
    height: auto;
    border-radius: var(--cert-border-radius);
}

.certificate-info h6 {
    color: var(--cert-text-primary);
    margin-bottom: 0.5rem;
}

.certificate-info p {
    color: var(--cert-text-secondary);
    margin-bottom: 0;
}

/* No Certifications */
.no-certifications {
    background: var(--cert-accent-color);
    border-radius: var(--cert-border-radius);
    padding: 3rem 2rem;
    margin: 2rem 0;
    border: 2px dashed var(--cert-primary-light);
}

.no-certifications i {
    color: var(--cert-primary-color);
}

/* Feature Icons */
.feature-icon {
    transition: var(--cert-transition);
}

.feature-icon:hover {
    transform: scale(1.1);
}

/* Animation */
.certification-card {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

/* Staggered animation for certification cards */
.certification-card:nth-child(1) { animation-delay: 0.1s; }
.certification-card:nth-child(2) { animation-delay: 0.2s; }
.certification-card:nth-child(3) { animation-delay: 0.3s; }
.certification-card:nth-child(4) { animation-delay: 0.4s; }
.certification-card:nth-child(5) { animation-delay: 0.5s; }
.certification-card:nth-child(6) { animation-delay: 0.6s; }
.certification-card:nth-child(7) { animation-delay: 0.7s; }
.certification-card:nth-child(8) { animation-delay: 0.8s; }
.certification-card:nth-child(9) { animation-delay: 0.9s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 992px) {
    .certification-image {
        height: 180px;
    }
    
    .certification-info {
        padding: 1rem;
    }
    
    .certification-title {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .certification-image {
        height: 160px;
    }
    
    .certification-info {
        padding: 1rem;
    }
    
    .certification-title {
        font-size: 0.95rem;
    }
    
    .certification-filename {
        font-size: 0.85rem;
    }
    
    .certification-actions .btn {
        padding: 0.6rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .certification-image {
        height: 140px;
    }
    
    .certification-info {
        padding: 0.75rem;
    }
    
    .certification-actions .btn {
        padding: 0.5rem;
        font-size: 0.85rem;
    }
    
    .modal-dialog {
        margin: 1rem;
    }
    
    .certificate-image-container {
        max-height: 50vh;
    }
}

/* Loading Animation */
.certification-image img {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.certification-image img[src] {
    opacity: 1;
}

/* Hover Effects for Better UX */
.certification-card:hover .certification-title {
    color: var(--cert-primary-hover);
}

.certification-card:hover .certification-placeholder {
    color: var(--cert-primary-color);
    transform: scale(1.1);
}

.certification-card:hover .certification-image {
    background: var(--cert-primary-light);
}

/* Custom scrollbar for modal */
.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--cert-background-light);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--cert-primary-color);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--cert-primary-hover);
}