:root {
  color-scheme: light;
  --background: #f5f7f8;
  --panel: #ffffff;
  --text: #1d2a2f;
  --muted: #5d6a70;
  --accent: #31566b;
  --line: rgba(29, 42, 47, 0.12);
  --shadow: 0 24px 70px rgba(29, 42, 47, 0.14);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background:
    radial-gradient(circle at top left, rgba(49, 86, 107, 0.16), transparent 34rem),
    linear-gradient(135deg, #ffffff 0%, var(--background) 45%, #e8eef1 100%);
  color: var(--text);
}

.page-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.card {
  width: min(100%, 44rem);
  padding: clamp(2rem, 7vw, 4.5rem);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  box-shadow: var(--shadow);
  text-align: center;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.2rem, 7vw, 4.5rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.message {
  margin: 1.5rem auto 0;
  max-width: 32rem;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  line-height: 1.6;
}

.contact {
  margin: 2rem 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.98rem;
  line-height: 1.5;
}

@media (max-width: 520px) {
  .page-shell {
    padding: 1rem;
  }

  .card {
    border-radius: 0.5rem;
  }
}