:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--bg:#f7f7f5;--fg:#1b1b1b;--muted:#666;--card:#fff;--line:#ddd;--accent:#2f6fed;--warn:#b45309;--danger:#b91c1c;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.45}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#111;--fg:#eee;--muted:#9a9a9a;--card:#1b1b1b;--line:#333;--accent:#6b9cff;--warn:#f59e0b;--danger:#f87171}}*{box-sizing:border-box}body{background:var(--bg);color:var(--fg);margin:0}main{max-width:560px;margin:0 auto;padding:16px}h1{margin:0;font-size:1.3rem}h2{margin:0 0 8px;font-size:1.05rem}section{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:12px 0;padding:14px}button{font:inherit;border:1px solid var(--accent);background:var(--accent);color:#fff;border-radius:10px;min-height:44px;margin:4px 4px 4px 0;padding:10px 14px}button:disabled{opacity:.5}button.danger{color:var(--danger);border-color:var(--danger);background:0 0}input,textarea{font:inherit;border:1px solid var(--line);width:100%;color:inherit;background:0 0;border-radius:10px;margin:4px 0;padding:10px}label{color:var(--muted);margin:6px 0;display:block}.warn{color:var(--warn);margin:4px 0 0}.status{font-weight:600}.small{color:var(--muted);font-size:.85rem}.mono{word-break:break-all;font-family:ui-monospace,Consolas,monospace}.big{font-size:2rem;font-weight:700}.balance,.qr{text-align:center}.qr img{width:100%;max-width:280px;image-rendering:pixelated;background:#fff;border-radius:8px}.preview{border-top:1px solid var(--line);margin-top:8px;padding-top:8px}.history{margin:0;padding:0;list-style:none}.history li{border-bottom:1px solid var(--line);flex-direction:column;padding:8px 0;display:flex}dl div{border-bottom:1px solid var(--line);justify-content:space-between;gap:12px;padding:4px 0;display:flex}dt{color:var(--muted)}dd{text-align:right;word-break:break-all;margin:0}.error{color:var(--danger);font-weight:600}