/* Modern card styles */
.document-card {
    transition: all 0.3s ease;
    border: none;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    height: 100%;
}

.document-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.pdf-preview {
    background: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.pdf-preview::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.3));
}

.document-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.btn-preview {
    background-color: #6c757d;
    border-color: #6c757d;
}

.btn-preview:hover {
    background-color: #5a6268;
    border-color: #545b62;
}

/* Modal styles */
.modal-pdf-container {
    width: 100%;
    height: 70vh;
    overflow: auto;
}

/* Header styles */
.page-header {
    padding-bottom: 15px;
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
}