/* PDF Modal Viewer Styles */

#pdfModal .modal-dialog {
    margin: 1.75rem auto;
}

#pdfModal .modal-content {
    border-radius: 0.5rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

#pdfModal .modal-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    padding: 1rem 1.5rem;
}

#pdfModal .modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2c3e50;
}

#pdfModal .modal-body {
    padding: 0;
    background-color: #525659;
}

#pdfModal #pdfIframe {
    width: 100%;
    height: 100%;
    border: none;
}

#pdfModal .modal-footer {
    background-color: #f8f9fa;
    border-top: 1px solid #dee2e6;
    padding: 0.75rem 1.5rem;
}

#pdfModal .btn-primary {
    background-color: #008751;
    border-color: #008751;
}

#pdfModal .btn-primary:hover {
    background-color: #006d41;
    border-color: #006d41;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    #pdfModal .modal-dialog {
        max-width: 95% !important;
        margin: 0.5rem auto;
        height: 95vh;
    }
    
    #pdfModal .modal-content {
        height: 95vh;
    }
    
    #pdfModal .modal-body {
        height: calc(95vh - 120px);
    }
}

/* Loading indicator */
#pdfModal .modal-body::before {
    content: "Đang tải PDF...";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 1.1rem;
    z-index: 1;
    pointer-events: none;
}

#pdfModal #pdfIframe[src]:not([src=""]) ~ .modal-body::before {
    display: none;
}