.daorai-pdf-container {
    border: 1px solid #ddd;
    padding: 15px;
    background: #fafafa;
    text-align: center;
    margin: 20px 0;
    border-radius: 8px;
}
.daorai-pdf-canvas {
    max-width: 100%;
    border: 1px solid #ccc;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    user-select: none; 
    -webkit-user-select: none;
}
.daorai-pdf-controls {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    font-family: sans-serif;
    
    /* Force single line and allow smooth scrolling on ultra-tiny screens */
    flex-wrap: nowrap; 
    overflow-x: auto;
    padding-bottom: 5px; 
}
.daorai-pdf-controls button {
    padding: 8px 16px;
    background-color: #333;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    white-space: nowrap; /* Prevent button text from breaking into two lines */
}
.daorai-pdf-controls span {
    white-space: nowrap; 
}
.daorai-pdf-controls button:disabled {
    background-color: #999;
    cursor: not-allowed;
}
.daorai-download-btn {
    background-color: #0073aa !important; 
    margin-left: 10px;
}

/* Mobile Responsiveness: Scale down smoothly for screens under 600px */
@media (max-width: 600px) {
    .daorai-pdf-container {
        padding: 10px;
    }
    .daorai-pdf-controls {
        gap: 5px; 
    }
    .daorai-pdf-controls button {
        padding: 6px 10px; 
        font-size: 13px; 
    }
    .daorai-pdf-controls span {
        font-size: 13px;
    }
    .daorai-download-btn {
        margin-left: 0 !important; 
    }
}