:root {
  --navy: #2c4a85;
  --ink: #1b2a47;
  --yellow: #ffc20e;
  --bg: #f3f6fb;
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; }

body {
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 50% 0%, #ffffff 0%, var(--bg) 60%, #dfe7f4 100%);
  display: flex;
  justify-content: center;
}

.page {
  width: 100%;
  max-width: 760px;
  padding: 32px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}

.logo {
  width: min(380px, 80%);
  height: auto;
}

.hazard {
  width: 100%;
  height: 14px;
  border-radius: 7px;
  background: repeating-linear-gradient(
    -45deg,
    var(--yellow) 0 18px,
    #111 18px 36px
  );
}

.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.sign {
  width: min(320px, 70%);
  height: auto;
  border-radius: 16px;
  box-shadow: 0 10px 28px rgba(27, 42, 71, .25);
  margin-bottom: 16px;
}

h1 {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  color: var(--navy);
}

p {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.5;
  max-width: 34em;
}

footer {
  font-size: .85rem;
  opacity: .7;
}