.active-reading {
    background: #fff59d;
    transition: 0.3s;
    padding: 5px;
    border-radius: 5px;
}

.arp-controls {
    position: sticky;
    top: 0;
    background: #ffffff;
    padding: 10px;
    display: flex;
    gap: 10px;
    z-index: 999;
    border-bottom: 1px solid #ddd;
}

.arp-controls button {
    padding: 8px 12px;
    cursor: pointer;
}