:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color-scheme:light dark;color:#ffffffeb;background-color:#0d1117}*{box-sizing:border-box}body{margin:0;min-height:100vh}#root{min-height:100vh;display:flex;flex-direction:column}a{color:#58a6ff}button{font:inherit;cursor:pointer}input,select{font:inherit}.app-shell{max-width:960px;margin:0 auto;padding:32px 24px 64px;width:100%}.header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.header h1{margin:0;font-size:22px}.subtitle{color:#8b949e;margin:4px 0 0;font-size:14px}.panel{background:#161b22;border:1px solid #30363d;border-radius:12px;padding:20px;margin-bottom:16px}.panel h2{margin:0 0 4px;font-size:16px}.panel .meta{color:#8b949e;font-size:13px;margin:0 0 16px}.panel.disabled{opacity:.55}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}label{display:flex;flex-direction:column;gap:4px;flex:1 1 200px;font-size:13px;color:#c9d1d9}.field-help{font-size:11px;color:#8b949e;margin-top:2px;min-height:14px}.field-help--error{color:#ffa198}.amount-label{display:flex;align-items:center;justify-content:space-between;gap:8px}.unit-toggle{display:inline-flex;align-items:center;gap:4px;background:#0d1117;border:1px solid #30363d;color:#8b949e;border-radius:999px;padding:2px 8px;font-size:11px;cursor:pointer;line-height:1.6}.unit-toggle:hover:not(:disabled){border-color:#58a6ff;color:#c9d1d9}.unit-toggle .active{color:#e6edf3;font-weight:600}.unit-toggle .sep{opacity:.5;font-size:10px}.unit-toggle:disabled{cursor:not-allowed;opacity:.5}.amount-input-row{position:relative;display:flex;align-items:center}.amount-input-row input{flex:1;padding-right:44px}.amount-unit{position:absolute;right:10px;font-size:11px;color:#8b949e;pointer-events:none}input{background:#0d1117;border:1px solid #30363d;color:#e6edf3;border-radius:6px;padding:8px 10px}input:focus{outline:2px solid #1f6feb}button.primary{background:#238636;color:#fff;border:1px solid rgba(240,246,252,.1);border-radius:6px;padding:8px 16px;font-weight:600}button.primary:disabled{background:#1f3320;color:#6e7681;cursor:not-allowed}.banner{border-radius:8px;padding:10px 12px;font-size:13px;margin:12px 0}.banner.warn{background:#3a2a00;border:1px solid #9e6a03;color:#f8e3a1}.banner.error{background:#3a1717;border:1px solid #b62324;color:#ffa198}.banner.success{background:#0f2d1b;border:1px solid #238636;color:#7ee787}.tx-result{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;word-break:break-all}.footer{margin-top:auto;padding-top:24px;color:#6e7681;font-size:12px;text-align:center}