.vtfep-controls {
    position: fixed;
    bottom: 10px;
    right: 10px;
    background: #fff;
    border: 1px solid #ddd;
    padding: 15px;
    z-index: 9999;
    font-size: 14px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    width: 320px;
    max-height: 80vh;
    overflow-y: auto;
}
.vtfep-controls h3 {
    margin-top: 0;
    margin-bottom: 15px;
    border-bottom: 1px solid #eee;
}
.vtfep-control-row {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
}
.vtfep-control-row label {
    width: 120px;
    font-weight: 500;
}
.vtfep-control-row input,
.vtfep-control-row select {
    flex: 1;
    padding: 6px;
    border: 1px solid #ddd;
    border-radius: 4px;
    max-width: 120px;
}