:root {
  font-family: system-ui, sans-serif;
  color: #172c38;
  background: #f4f8f7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 24px;
}

main {
  width: 100%;
  max-width: 720px;
  text-align: center;
  padding: 64px 24px;
}

.eyebrow {
  color: #437064;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 20px 0;
  font-size: clamp(3rem, 10vw, 5.5rem);
  line-height: 1.1;
  letter-spacing: -0.06em;
}

h1 span { color: #147863; }
p { line-height: 1.6; }

button {
  margin-top: 20px;
  padding: 14px 26px;
  border: 0;
  border-radius: 999px;
  background: #147863;
  color: white;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:hover { background: #105e4e; }
button:focus-visible { outline: 3px solid #172c38; outline-offset: 4px; }
#message { min-height: 1.6em; color: #437064; }