/* SDR: sdr-0017-site-html-rastreabilidade */
/* Partes: #W website */
:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --heading: #1e293b;
  --acao: #6d28d9;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
}

header {
  background: #0f172a;
  color: #f8fafc;
  padding: 16px 28px;
}

header p {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px 48px;
}

section {
  width: min(440px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  padding: 36px 32px 28px;
  border-top: 4px solid var(--acao);
}

.marca {
  margin: 0 0 10px;
  color: var(--acao);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 8px;
  color: var(--heading);
  font-size: 1.35rem;
  font-weight: 650;
  line-height: 1.3;
}

.texto {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

button {
  width: 100%;
  padding: 12px 16px;
  border: 0;
  border-radius: 8px;
  background: var(--acao);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
}

button:hover { background: #5b21b6; }

#erro {
  margin: 12px 0 0;
  min-height: 1.2em;
  color: #b91c1c;
  font-size: 0.85rem;
}