:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f4f8f8;
  color: #173b3d;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

main {
  width: min(100%, 28rem);
  text-align: center;
}

.mark {
  width: 3rem;
  height: 3rem;
  margin: 0 auto 1.25rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #0f7779;
  color: #fff;
  font-size: 1.15rem;
  font-weight: 750;
  letter-spacing: -0.04em;
}

h1 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.5rem, 5vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.035em;
}

p {
  margin: 0;
  color: #496667;
  font-size: 1rem;
  line-height: 1.6;
}

a {
  color: #096466;
  font-weight: 700;
}

.loader {
  width: 1.8rem;
  height: 1.8rem;
  margin: 1.5rem auto;
  border: 3px solid #c8dddd;
  border-top-color: #0f7779;
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .loader {
    animation: none;
    border-top-color: #c8dddd;
  }
}