:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #252a2e;
  background: #f4f7fa;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: linear-gradient(145deg, #003d66 0%, #0063a3 52%, #e7f3fa 52%);
}

.card {
  width: min(100%, 560px);
  padding: 40px 28px;
  text-align: center;
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 24px 70px rgba(0, 34, 57, .24);
}

.brand {
  margin: 0 0 28px;
  color: #0063a3;
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .16em;
}

.status-icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  color: #fff;
  background: #16834f;
  font-size: 2rem;
  font-weight: 800;
}

h1 { margin: 0 0 12px; font-size: clamp(1.65rem, 5vw, 2.35rem); line-height: 1.1; }
p { line-height: 1.55; }

.health {
  display: inline-block;
  margin-top: 16px;
  padding: 14px 20px;
  border-radius: 12px;
  color: #fff;
  background: #0063a3;
  font-weight: 700;
  text-decoration: none;
}

.health:focus-visible { outline: 4px solid #fbad26; outline-offset: 3px; }