:root {
  --petrol: #0b5563;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

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

body {
  background-color: var(--petrol);
  color: var(--white);
  font-family: "Segoe UI", Verdana, Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
}

.wrapper {
  max-width: 40rem;
}

h1 {
  font-size: 2.5rem;
  font-weight: 600;
  margin: 0 0 1.5rem;
  letter-spacing: 0.02em;
}

.message {
  font-size: 1.4rem;
  margin: 0 0 2rem;
}

.contact {
  font-size: 1rem;
  opacity: 0.9;
}

.contact a {
  color: var(--white);
  text-decoration: underline;
}

.contact a:hover,
.contact a:focus {
  text-decoration: none;
}