:root{--bg:#f1f5f9;--card:#fff;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--brand:#4f46e5;--brand-ink:#fff;--ok:#059669;--ok-bg:#ecfdf5;--warn:#b45309;--warn-bg:#fffbeb;--err:#b91c1c;--err-bg:#fef2f2}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.page{justify-content:center;align-items:center;min-height:100vh;padding:48px 20px;display:flex}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;width:100%;max-width:460px;overflow:hidden;box-shadow:0 8px 30px #0f172a0f}.card-head{border-bottom:1px solid var(--line);padding:22px 24px 18px}.brand-row{justify-content:space-between;align-items:center;display:flex}.brand{letter-spacing:-.01em;font-weight:700}.pill{color:var(--brand);background:#eef2ff;border-radius:999px;padding:3px 9px;font-size:12px;font-weight:600}.card-body{padding:24px}h1{margin:0 0 4px;font-size:18px}.lead{color:var(--muted);margin:0 0 20px;font-size:14px;line-height:1.5}label{color:var(--ink);margin:0 0 6px;font-size:13px;font-weight:600;display:block}.field{margin-bottom:16px}select,input{border:1px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:10px;outline:none;padding:10px 12px;font-size:14px}select:focus,input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #4f46e51f}button{width:100%;color:var(--brand-ink);background:var(--brand);cursor:pointer;border:0;border-radius:10px;padding:12px 16px;font-size:15px;font-weight:600;transition:opacity .15s}button:hover{opacity:.92}button:disabled{opacity:.55;cursor:default}.btn-ghost{color:var(--muted);border:1px solid var(--line);background:0 0}.qr{border:1px solid var(--line);background:#fff;border-radius:12px;justify-content:center;margin-bottom:18px;padding:16px;display:flex}.qr img{width:200px;height:200px}.row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:11px 0;font-size:14px;display:flex}.row:last-child{border-bottom:0}.row .k{color:var(--muted)}.row .v{text-align:right;font-weight:600}.mono{word-break:break-all;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}.addr{align-items:center;gap:8px;display:flex}.copy{width:auto;color:var(--muted);border:1px solid var(--line);background:#f8fafc;flex:none;padding:6px 10px;font-size:12px}.status{border-radius:10px;align-items:center;gap:8px;margin-top:18px;padding:12px 14px;font-size:14px;font-weight:600;display:flex}.status.pending{color:var(--warn);background:var(--warn-bg)}.status.paid{color:var(--ok);background:var(--ok-bg)}.status.error{color:var(--err);background:var(--err-bg);font-weight:500}.dot{background:currentColor;border-radius:999px;width:9px;height:9px;animation:1.2s ease-in-out infinite pulse}@keyframes pulse{0%,to{opacity:.35}50%{opacity:1}}.timer{font-variant-numeric:tabular-nums}.success{text-align:center;padding:8px 0 4px}.success .check{background:var(--ok-bg);width:56px;height:56px;color:var(--ok);border-radius:999px;justify-content:center;align-items:center;margin:0 auto 14px;font-size:28px;display:flex}.foot{color:var(--muted);text-align:center;margin-top:20px;font-size:12px;line-height:1.5}