:root {
  color-scheme: light;
  --ink: #111a15;
  --sage: #4f6b54;
  --soft: #e8eee7;
  --paper: #f6f5f0;
  --muted: #67736b;
  --line: #d9ded8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: ui-rounded, "Nunito", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main {
  width: min(680px, calc(100% - 40px));
  margin: 0 auto;
  padding: 80px 0 48px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -1px;
}

.mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--sage);
  color: white;
  font-size: 24px;
}

.card {
  margin-top: 56px;
  padding: clamp(28px, 7vw, 56px);
  border: 1px solid var(--line);
  border-radius: 32px;
  background: rgba(255, 255, 255, .62);
  box-shadow: 0 24px 70px rgba(17, 26, 21, .08);
}

h1 {
  margin: 0;
  max-width: 14ch;
  font-size: clamp(38px, 8vw, 64px);
  line-height: 1.02;
  letter-spacing: -2.5px;
}

h2 { margin-top: 32px; }

p, li {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.button {
  display: inline-flex;
  min-height: 52px;
  margin-top: 20px;
  padding: 0 24px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  background: var(--ink);
  color: white;
  font: inherit;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}

.hint { font-size: 15px; }

footer {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 40px;
  color: var(--muted);
  font-size: 14px;
}

footer a { color: inherit; }

@media (max-width: 520px) {
  main { padding-top: 32px; }
  .card { margin-top: 36px; border-radius: 24px; }
}