:root { --air-blue: #003569; --air-sky: #4A9FD4; }
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--air-blue); color: #fff;
  display: flex; flex-direction: column;
}
.accent { height: 4px; width: 100%; background: var(--air-sky); }
.card { margin: auto; padding: 32px 16px; max-width: 480px; text-align: center; }
.logo { display: block; margin: 0 auto 24px; }
.eyebrow { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .18em; color: var(--air-sky); margin: 0 0 8px; }
h1 { font-size: 28px; font-weight: 600; margin: 0 0 12px; }
p { font-size: 15px; line-height: 1.5; margin: 0; color: #dce8f3; }