:root {
  --navy: #26303f;
  --navy2: #3b4a5e;
  --green: #2e7d32;
  --green2: #7cc242;
  --bg: #eef1f4;
  --card: #ffffff;
  --line: #dfe4ea;
  --muted: #6b7886;
}
* { box-sizing: border-box; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  background: var(--bg); color: var(--navy); margin: 0; padding: 24px;
}
.card {
  max-width: 560px; margin: 0 auto; background: var(--card);
  border-radius: 18px; padding: 28px;
  box-shadow: 0 12px 34px rgba(20,30,45,.12); border: 1px solid var(--line);
}
.brand { text-align: center; display: grid; gap: 8px; justify-items: center; }
.logo { width: min(300px, 80%); height: auto; }
.sub { margin: 0; color: var(--muted); font-size: .88rem; }
.badge {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  background: #e8f5e9; color: var(--green); font-size: .78rem;
  font-weight: 600; border: 1px solid #c8e6c9;
}
.badge.alerta { background: #fdecea; color: #c62828; border-color: #f5c6cb; }
.produto, .tab { margin-top: 18px; display: grid; gap: 12px; }
label { display: grid; gap: 4px; font-size: .85rem; color: var(--navy2); font-weight: 600; }
input, textarea {
  background: #fff; border: 1px solid var(--line); color: var(--navy);
  border-radius: 10px; padding: 11px; font-size: 1rem; width: 100%;
}
input:focus, textarea:focus {
  outline: none; border-color: var(--green2);
  box-shadow: 0 0 0 3px rgba(124,194,66,.18);
}
.linha { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.tabs { display: flex; gap: 8px; margin-top: 22px; }
.tabs button {
  flex: 1; padding: 11px; border: 1px solid var(--line); border-radius: 10px;
  background: #f6f8fa; color: var(--navy2); cursor: pointer; font-weight: 600;
}
.tabs button.ativo { background: var(--navy); color: #fff; border-color: var(--navy); }
.acao {
  padding: 13px; border: 0; border-radius: 12px;
  background: linear-gradient(135deg, var(--green), var(--green2));
  color: #fff; font-weight: 700; font-size: 1rem; cursor: pointer;
  box-shadow: 0 6px 16px rgba(46,125,50,.25);
}
.acao:disabled { opacity: .55; cursor: wait; }
.dica { color: var(--muted); font-size: .82rem; margin: 0; }
.oculto { display: none; }
.resultado { margin-top: 24px; }
.resultado h2 { font-size: .95rem; color: var(--muted); margin-bottom: 6px; }
.status { font-weight: 700; }
.status.ok { color: var(--green); }
.status.erro { color: #c62828; }
pre {
  background: #0f172a; color: #e2e8f0; border-radius: 10px;
  padding: 12px; overflow: auto; max-height: 320px; font-size: .8rem;
}
#pixImg {
  max-width: 220px; background: #fff; padding: 8px; border-radius: 10px;
  display: block; margin-bottom: 10px; border: 1px solid var(--line);
}