.pdf-controls {
    margin: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    text-align: center;
}

.pdf-controls button {
    background: #0073aa;
    color: #fff;
    border: none;
    padding: 5px 10px;
    cursor: pointer;
    border-radius: 3px;
    text-align: center;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.pdf-controls button a {
    color: #fff;
    text-decoration: none;
}

.pdf-controls button:hover {
    background: #005f8d;
}

.pdf-controls .download-pdf {
    background: #28a745;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.pdf-controls .download-pdf:hover {
    background: #218838;
}
.pdf-canvas {
    display: block;
    max-width: 100%;
    margin: 0 auto;
}

.pdf-fallback-frame {
    display: block;
    width: 100%;
    height: 80vh;
    min-height: 480px;
    border: 1px solid #ddd;
    background: #fff;
}

.qepw-error {
    color: #b32d2e;
}