.re-popup {
    display: none;
    background: #fff;
    border: 1px solid #aaa;
    border-radius: 8px;
    padding: 12px 18px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.20);
    max-width: 350px;
    z-index: 99999;
}
.re-popup.active { display: block; }
.popup-header { margin-bottom: 8px; }
.definition { margin-bottom: 5px; }
.word { color: #0055ee; font-weight: bold; }