:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#172033;background:#f5f7fa}*{box-sizing:border-box}body{margin:0}.panel{max-width:760px;margin:auto;padding:24px}header h1{margin:0;font-size:24px}header p{margin:5px 0 20px;color:#667085}.context,.result{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;background:#fff;border:1px solid #e4e7ec;border-radius:10px;padding:16px;margin-bottom:20px}.context div,.result div{display:flex;flex-direction:column;gap:4px}.context span,.result span,label{font-size:12px;font-weight:600;color:#667085}.context small{color:#667085}.row{display:flex;gap:8px;margin-top:6px}input{flex:1;min-width:0;padding:10px 12px;border:1px solid #d0d5dd;border-radius:7px;font:inherit}button{border:0;border-radius:7px;padding:10px 18px;background:#1d2939;color:#fff;font-weight:600;cursor:pointer}button:disabled{opacity:.6;cursor:wait}#status{min-height:22px;color:#475467}.result{margin-top:10px}#resultPrice{font-size:20px}@media(max-width:500px){.panel{padding:16px}.row{flex-direction:column}}