.rtc-tool{background:#fff;border-radius:16px;border:1px solid var(--gray-200);padding:2rem;margin-top:2rem;display:flex;flex-direction:column;gap:1.25rem}.rtc-wpm-row{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.rtc-wpm-row label{font-size:.875rem;font-weight:600;color:var(--gray-600);flex-shrink:0}.rtc-wpm-row select{padding:.5rem .8rem;border:1px solid var(--gray-300);border-radius:8px;font-size:.875rem;color:var(--gray-800);background:#fff;cursor:pointer;transition:border-color .2s}.rtc-wpm-row select:focus{outline:0;border-color:var(--primary-500)}.rtc-field{display:flex;flex-direction:column;gap:.35rem}.rtc-field label{font-size:.875rem;font-weight:600;color:var(--gray-600)}.rtc-results{display:flex;gap:1rem;flex-wrap:wrap}.rtc-result-card{flex:1;min-width:120px;background:var(--gray-50);border:1px solid var(--gray-200);border-radius:12px;padding:1rem;display:flex;flex-direction:column;align-items:center;gap:.3rem;text-align:center}.rtc-result-value{font-size:1.4rem;font-weight:700;color:var(--primary-500);line-height:1}.rtc-result-label{font-size:.75rem;color:var(--gray-500);font-weight:500}@media (max-width:640px){.rtc-result-card{min-width:calc(50% - .5rem)}}