.dark .modal-content {
    background-color: #1e293b !important;
    color: #f1f5f9 !important;
    border-color: #334155 !important;
}

.dark .modal-header {
    border-bottom-color: #334155 !important;
}

.dark .modal-footer {
    border-top-color: #334155 !important;
}

.dark .close {
    color: #fff !important;
    opacity: 0.8;
}

.dark .close:hover {
    opacity: 1;
}

@media (max-width: 768px) {
    .pdf-viewer {
      width: 100vw;
      height: 100vh;
    }
}