:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #07090d;
  color: #f7f8fb;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at top, #141a25 0%, #07090d 48%, #030406 100%); }
.shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.card { width: min(100%, 460px); border: 1px solid rgba(255,255,255,.10); background: rgba(12,15,21,.96); border-radius: 24px; padding: 28px; box-shadow: 0 24px 80px rgba(0,0,0,.45); }
.brand { font-weight: 950; font-size: 25px; letter-spacing: -.8px; }
.brand span { color: #45f487; }
.eyebrow { margin: 5px 0 26px; color: #8791a4; font-weight: 700; font-size: 14px; }
.label { color: #8f98aa; margin: 18px 0 6px; font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
h1 { margin: 0 0 20px; font-size: 38px; letter-spacing: -1.5px; }
.qr { width: 236px; min-height: 236px; display: grid; place-items: center; background: white; border-radius: 18px; padding: 12px; margin: 0 auto 24px; }
.qr img, .qr canvas { max-width: 100%; height: auto !important; }
.copybox { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.copybox input { width: 100%; min-width: 0; background: #090b10; color: #cbd2df; border: 1px solid #252b37; border-radius: 12px; padding: 13px; outline: none; }
button { border: 0; border-radius: 12px; padding: 0 18px; font-weight: 900; background: #45f487; color: #06120a; cursor: pointer; }
button:active { transform: translateY(1px); }
.status { margin-top: 18px; padding: 14px 16px; border-radius: 14px; display: flex; gap: 10px; align-items: center; font-weight: 850; }
.status.pending { background: #17140a; color: #ffe38a; border: 1px solid #3a3214; }
.status.paid { background: #092016; color: #75ffa5; border: 1px solid #15472e; }
.status.failed { background: #261012; color: #ff9ba2; border: 1px solid #572126; }
.dot { width: 9px; height: 9px; border-radius: 999px; background: currentColor; box-shadow: 0 0 14px currentColor; }
.muted, .note { color: #7d8799; font-size: 13px; line-height: 1.5; }
.note { margin-bottom: 0; }
.state { color: #aab3c2; padding: 24px 0; }
.error { background: #251012; border: 1px solid #572126; color: #ffb2b7; border-radius: 14px; padding: 14px; }
.hidden { display: none !important; }
@media (max-width: 520px) { .shell { padding: 14px; } .card { border-radius: 20px; padding: 22px; } .qr { width: 215px; min-height: 215px; } }