.wsf{ background:#000; color:#fff; padding:16px; border-radius:8px; }
.wsf__row{ display:flex; gap:8px; flex-wrap:wrap; }
.wsf select, .wsf button{ padding:10px; border-radius:6px; border:1px solid #333; }
.wsf button{ cursor:pointer; }
.wsf__result{ margin-top:12px; font-size:14px; line-height:1.4; }