:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #202923;
  background: #f3f6f2;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
}

main {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 20%, rgba(177, 201, 178, 0.45), transparent 35%),
    linear-gradient(145deg, #f8faf7, #e6eee5);
}

.card {
  width: min(100%, 680px);
  padding: clamp(32px, 8vw, 72px);
  border: 1px solid rgba(54, 83, 61, 0.15);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 24px 70px rgba(38, 65, 44, 0.12);
  text-align: center;
}

.mark {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  margin: 0 auto 28px;
  border-radius: 50%;
  color: #fff;
  background: #315a3a;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.eyebrow {
  margin: 0 0 12px;
  color: #4f6d55;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.1rem, 8vw, 4.6rem);
  line-height: 1;
  letter-spacing: -0.045em;
}

.message {
  max-width: 480px;
  margin: 24px auto 0;
  color: #55625a;
  font-size: clamp(1rem, 3vw, 1.2rem);
  line-height: 1.6;
}

.current-site {
  margin: 30px 0 0;
  font-size: 0.95rem;
}

a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: #275f35;
  font-weight: 700;
  text-underline-offset: 4px;
}

@media (max-width: 600px) {
  main { padding: 16px; }
  .card { border-radius: 20px; }
}