:root {
  color-scheme: light;
  --ink: #1c1915;
  --muted: #5c564c;
  --paper: #f6f3ee;
  --card: #fffdf9;
  --line: #e4ddd2;
  --accent: #1f4d3a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--paper);
  color: var(--ink);
  font: 18px/1.5 Georgia, "Iowan Old Style", "Palatino Linotype", serif;
}

.card {
  width: min(100%, 440px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px;
}

.mark {
  margin: 0 0 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font: 600 12px/1 ui-sans-serif, system-ui, sans-serif;
  color: var(--accent);
}

h1 {
  margin: 0 0 8px;
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

p { margin: 0 0 20px; color: var(--muted); }

strong { color: var(--ink); font-weight: 600; }

.button {
  display: inline-block;
  background: var(--accent);
  color: white;
  text-decoration: none;
  font: 600 15px/1 ui-sans-serif, system-ui, sans-serif;
  padding: 12px 16px;
  border-radius: 999px;
}