:root {
  --brand: #1457d9;
  --brand-dark: #123f94;
  --ink: #142033;
  --muted: #5c6b80;
  --line: #d9e2ee;
  --panel: #ffffff;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 28px;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: #ffffff;
}

.maintenance-card {
  width: min(720px, 100%);
  padding: 44px 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  text-align: center;
  box-shadow: 0 18px 48px rgba(20, 32, 51, 0.08);
}

.logo {
  display: block;
  width: min(420px, 86vw);
  height: auto;
  margin: 0 auto 28px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(34px, 7vw, 56px);
  line-height: 1;
  letter-spacing: 0;
}

.message {
  max-width: 540px;
  margin: 0 auto 24px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.email-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 8px;
  color: #ffffff;
  background: var(--brand);
  font-size: 15px;
  font-weight: 800;
  text-decoration: none;
}

.email-link:hover {
  background: var(--brand-dark);
}

@media (max-width: 520px) {
  body {
    padding: 16px;
  }

  .maintenance-card {
    padding: 30px 18px;
  }

  .logo {
    width: min(280px, 82vw);
  }

  .message {
    font-size: 17px;
  }

  .email-link {
    width: 100%;
    font-size: 14px;
  }
}