:root {
  --brand-red: #ec1c24;
  --brand-blue: #163f8f;
  --ink: #1b2430;
  --muted: #667085;
  --line: #d7deea;
  --surface: #ffffff;
  --page: #f4f7fb;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(22, 63, 143, 0.1), rgba(236, 28, 36, 0.06)),
    var(--page);
}

.page-shell {
  flex: 1;
  display: grid;
  place-items: center;
  padding: 32px 16px;
}

.brand-panel {
  width: min(100%, 430px);
  padding: 42px 34px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 20px 45px rgba(22, 63, 143, 0.12);
}

.brand {
  text-align: center;
}

.logo {
  width: 220px;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto 18px;
}

h1 {
  margin: 0;
  color: var(--brand-blue);
  font-size: 30px;
  line-height: 1.2;
  text-align: center;
}

footer {
  padding: 18px 16px 24px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

@media (max-width: 480px) {
  .page-shell {
    padding: 20px 12px;
  }

  .brand-panel {
    padding: 26px 20px;
  }
}