:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#17243b;background:#f5f7fb;font-synthesis:none;font-weight:400;line-height:1.5;font-size:15px;font-variant-numeric:tabular-nums}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,select{cursor:pointer}button{min-height:44px}button,input,select{outline-offset:4px}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #2563eb}button{transition:background .15s}button:hover{filter:brightness(.97)}.app-shell{max-width:1180px;margin:auto;padding:0 40px}.app-header{display:flex;justify-content:space-between;align-items:center;padding:34px 0;border-bottom:1px solid #e3e8f0}.brand{display:flex;align-items:center;gap:14px}.bitcoin-mark{display:block;flex-shrink:0;object-fit:contain;width:54px;height:58px}.brand h1{font-size:23px;letter-spacing:-.7px;margin:0;font-weight:750}.brand p{font-size:12px;color:#69768b;margin:3px 0 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#dce3ed;border-radius:10px;min-height:52px;background:#fff;overflow:hidden}.number-input:focus-within{border-color:#2563eb;box-shadow:0 0 0 3px #2563eb12}.number-input input{width:100%;min-width:0;border:0;outline:0;padding:13px 14px;background:transparent;color:#17243b;font-size:18px;font-weight:600}.number-input input::placeholder{color:#a4adbd;font-weight:400}.number-input span{padding-right:16px;font-size:12px;font-weight:600;color:#7a879b}.large-field .number-input{min-height:82px;background:#fafbfd}.large-field input{font-size:29px;padding:18px;letter-spacing:-.5px}.conversion-icon{margin-top:24px;border:1px solid #e5eaf2;border-radius:50%;width:44px;height:44px;display:grid;place-items:center;color:#3b71d3;font-size:24px;background:#fff}.demo-settings{display:flex;align-items:center;justify-content:space-between;gap:28px;background:#f7f9fc;border:1px dashed #dce3ed;border-radius:12px;padding:20px}.demo-settings strong{font-size:12px}.demo-settings p{font-size:11px;color:#718098;margin:5px 0 0}.demo-settings>.field{width:240px;flex-shrink:0}.demo-settings .number-input{min-height:44px}.demo-settings input{font-size:16px;padding:9px 12px}.trade-layout{display:grid;grid-template-columns:1fr 50px 1fr;align-items:center}.trade-card{padding:28px;display:flex;flex-direction:column;gap:18px}.trade-card h3{display:flex;align-items:center;gap:12px;font-size:21px;margin:0 0 6px}.step-number{font-size:11px;color:#5985c8;background:#eff5ff;border-radius:8px;padding:7px 9px;font-weight:600}.fetch-button{margin-top:-10px;display:flex;justify-content:center;align-items:center;gap:10px;background:#eef4ff;border:1px solid #dce8ff;border-radius:9px;color:#2563eb;font-size:12px;font-weight:650}.trade-card .currency-switch{width:100%;align-self:stretch}.trade-card .currency-switch label{flex:1}.trade-card hr{border:0;border-top:1px solid #e8edf4;width:100%;margin:5px 0}.readonly{background:#f3f5f9}.readonly 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.currency-switch{grid-column:1/-1;justify-self:center}.price-display>div{font-size:30px}.demo-settings{align-items:flex-start}.trade-card{padding:22px}dl{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.trade-layout{grid-template-columns:1fr 36px 1fr}}@media(max-width:600px){.app-shell{padding:0 18px}.app-header{padding:23px 0}.brand h1{font-size:20px}.brand p{font-size:10px}.bitcoin-mark{width:45px;height:48px}.local-badge{display:none}main{padding-top:22px}.tabs{width:100%}.tabs button{flex:1;padding:9px 12px}.section-heading{margin-top:28px}h2{font-size:25px}.section-heading p{font-size:13px;max-width:300px}.demo-banner{padding:13px;align-items:flex-start;gap:10px}.demo-icon{margin-top:2px}.demo-banner p{font-size:11px}.rate-card{padding:22px 18px}.rate-top{display:flex;flex-direction:column;gap:20px;padding-bottom:24px}.rate-top>.field{width:100%}.price-display>div{font-size:36px}.rate-top .currency-switch{width:100%}.rate-top .currency-switch 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