:root{--bg:#f6f7f9;--card:#fff;--ink:#15181d;--muted:#667085;--line:#e4e7ec;--accent:#0b6bcb;--bad:#b42318;--good:#067647;--warn:#b54708;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--bg:#0f1115;--card:#171a21;--ink:#e8eaee;--muted:#98a2b3;--line:#2a2f3a;--accent:#5aa9ff;--bad:#f97066;--good:#47cd89;--warn:#fdb022}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.45 system-ui,sans-serif}header{display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:12px 16px;background:var(--card);border-bottom:1px solid var(--line)}header h1{font-size:16px;margin:0 12px 0 0}nav{display:flex;flex-wrap:wrap;gap:4px}nav button,button{font:inherit;padding:6px 12px;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:6px;cursor:pointer}nav button.on,button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}button.danger{color:var(--bad)}button:disabled{opacity:.5;cursor:default}main{max-width:1100px;margin:0 auto;padding:16px;display:grid;gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:16px;overflow-x:auto}.card h2{font-size:15px;margin:0 0 12px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:8px;border-bottom:1px solid var(--line);vertical-align:top;white-space:nowrap}th{color:var(--muted);font-weight:600;font-size:12px}form{display:grid;gap:8px;max-width:520px}label{display:grid;gap:4px;color:var(--muted);font-size:12px}input,select,textarea{font:inherit;padding:7px 9px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink);width:100%}.row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.muted{color:var(--muted)}.badge{padding:2px 8px;border-radius:99px;font-size:12px;border:1px solid var(--line)}.badge.paid,.badge.matched,.badge.delivered{color:var(--good)}.badge.pending{color:var(--warn)}.badge.failed,.badge.expired,.badge.cancelled,.badge.invalid{color:var(--bad)}.secret{font-family:ui-monospace,monospace;word-break:break-all;background:var(--bg);border:1px dashed var(--accent);padding:10px;border-radius:6px}.error{color:var(--bad)}.login{max-width:380px;margin:12vh auto}.notice{color:var(--good)}.links{justify-content:space-between}button.link{border:0;background:none;color:var(--accent);padding:0}progress{width:120px;accent-color:var(--accent)}progress.hot{accent-color:var(--bad)}hr{border:0;border-top:1px solid var(--line);margin:16px 0}.pay{max-width:420px;text-align:center}.pay h2{font-size:20px;margin:0 0 4px}.pay .amount{font-size:30px;font-weight:700;margin:8px 0 16px}.pay .qr{width:100%;max-width:280px;height:auto;background:#fff;padding:8px;border-radius:8px}.result{padding:16px 0}.result.paid strong{color:var(--good);font-size:18px}.result.expired strong,.result.cancelled strong{color:var(--bad);font-size:18px}