:root{--bg:#f6f7f9;--surface:#fff;--text:#1b2430;--muted:#5b6676;--border:#d9dee6;--input-border:#848e9d;--brand:#1f4e79;--brand-text:#fff;--focus:#2f7bd9;--danger:#b42318;--danger-bg:#fdecea;--success:#1e6b3a;--success-bg:#e8f5ec;--info-bg:#eaf2fb;--code-bg:#eef1f5;--radius:10px;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.5}@media (prefers-color-scheme:dark){:root{--bg:#0f141b;--surface:#161d27;--text:#e6ebf2;--muted:#9aa6b6;--border:#2a3442;--input-border:#6b7686;--brand:#4f8fcf;--brand-text:#0b1118;--focus:#7ab4f5;--danger:#ff8a7a;--danger-bg:#3a1a17;--success:#7fd69b;--success-bg:#14301f;--info-bg:#142538;--code-bg:#1d2633}}*{box-sizing:border-box}body{background:var(--bg);margin:0}a{color:var(--brand)}:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.skip{position:absolute;left:-999px}.skip:focus{background:var(--surface);z-index:10;padding:8px 12px;top:8px;left:16px}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.top{background:var(--surface);border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:12px 24px;padding:12px 16px;display:flex}.brand{color:var(--text);font-size:1.1rem;font-weight:700;text-decoration:none}.top nav ul{gap:16px;margin:0;padding:0;list-style:none;display:flex}.top nav a{color:var(--muted);text-decoration:none}.top nav a.active,.top nav a:hover{color:var(--text)}.top nav a.active{text-underline-offset:6px;text-decoration:underline;text-decoration-thickness:2px}.tools{align-items:center;gap:8px;margin-left:auto;display:flex}select,input{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--input-border);border-radius:8px;padding:8px 10px}main{max-width:880px;margin:0 auto;padding:24px 16px 48px}.narrow{max-width:420px;margin:0 auto}.stack>*+*{margin-top:20px}h1{margin:8px 0 12px;font-size:1.6rem}h2{margin:0 0 12px;font-size:1.15rem}.lead,.muted{color:var(--muted)}.small{color:var(--muted);font-size:.9rem}.field{flex-direction:column;gap:4px;margin-bottom:14px;display:flex}.field label{font-weight:600}.hint{color:var(--muted);margin:0;font-size:.85rem}.button{font:inherit;cursor:pointer;border:1px solid #0000;border-radius:8px;padding:9px 16px;font-weight:600}.button.primary{background:var(--brand);color:var(--brand-text)}.button.secondary{color:var(--text);border-color:var(--border);background:0 0}.button.danger{color:var(--danger);border-color:var(--danger);background:0 0}.button:disabled{opacity:.6;cursor:progress}.narrow .button{width:100%}.notice{border-radius:var(--radius);margin:12px 0;padding:12px 14px}.notice ul{margin:0;padding-left:18px}.notice.error{background:var(--danger-bg);color:var(--danger)}.notice.success{background:var(--success-bg);color:var(--success)}.notice.info{background:var(--info-bg)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px}.amount{margin:0 0 8px;font-size:1.5rem;font-weight:700}.plain{padding-left:18px}.divider{color:var(--muted);align-items:center;gap:12px;margin:16px 0;display:flex}.divider:before,.divider:after{content:"";border-top:1px solid var(--border);flex:1}.links{text-align:center;margin-top:16px}.row{flex-wrap:wrap;gap:8px;display:flex}.inline{flex-wrap:wrap;align-items:flex-start;gap:12px;margin-top:16px;display:flex}.inline>.button{margin-top:calc(1.5em + 4px)}.inline .field{flex:260px;margin-bottom:0}table{border-collapse:collapse;width:100%;margin:8px 0}th,td{text-align:left;border-bottom:1px solid var(--border);vertical-align:middle;overflow-wrap:anywhere;padding:8px 6px}.table{overflow-x:auto}.link{font:inherit;color:var(--brand);cursor:pointer;background:0 0;border:none;padding:0;text-decoration:underline}.banner{max-width:880px;margin:0 auto;padding:0 16px}code,pre{background:var(--code-bg);border-radius:6px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}code{word-break:break-all;padding:1px 5px}pre{padding:12px;overflow-x:auto}pre code{word-break:normal;padding:0}.secret{background:var(--info-bg);border-radius:var(--radius);margin-bottom:12px;padding:14px}.secret code{margin:8px 0;padding:8px;display:block}.qr{background:#fff;border-radius:8px;margin:8px 0;padding:8px;display:block}.bottom{max-width:880px;color:var(--muted);margin:0 auto;padding:0 16px 32px;font-size:.85rem}@media (max-width:600px){.tools{margin-left:0}th:nth-child(3),td:nth-child(3){display:none}}