:root {
  color-scheme: light dark;
  --page: #ecf2ec;
  --surface: #fffef6;
  --surface-strong: #f2f6ef;
  --title: #17211f;
  --body: #465651;
  --muted: #7b8580;
  --accent: #216e61;
  --accent-dark: #154940;
  --warm: #e07a29;
  --line: rgba(34, 55, 49, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #0e1312;
    --surface: #18231f;
    --surface-strong: #20302a;
    --title: #eef5f0;
    --body: #bdcbc5;
    --muted: #91a09a;
    --accent: #84d2c3;
    --accent-dark: #63b9a9;
    --warm: #ffb15c;
    --line: rgba(190, 220, 207, 0.14);
  }
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--page);
}

body {
  margin: 0;
  min-height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  color: var(--title);
  background:
    radial-gradient(circle at 82% 18%, rgba(132, 210, 195, 0.22), transparent 28rem),
    var(--page);
}

a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.shell {
  width: min(960px, calc(100% - 40px));
  margin: 0 auto;
  padding: 56px 0;
}

.hero {
  min-height: calc(100vh - 112px);
  display: grid;
  align-content: center;
  gap: 20px;
}

.mark {
  display: grid;
  place-items: center;
  width: 84px;
  height: 84px;
  border-radius: 28px;
  color: var(--surface);
  background: var(--accent);
  font-size: 42px;
  font-weight: 800;
  box-shadow: 0 24px 70px rgba(20, 63, 56, 0.18);
}

.eyebrow,
.effective {
  margin: 0;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.02em;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(48px, 8vw, 88px);
  line-height: 0.96;
  letter-spacing: -0.03em;
}

.document h1 {
  font-size: clamp(40px, 7vw, 64px);
  margin-top: 22px;
}

h2 {
  margin: 34px 0 8px;
  font-size: 22px;
}

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

.lede {
  max-width: 680px;
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.35;
}

.narrow {
  max-width: 620px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--title);
  background: var(--surface);
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  color: #fffef6;
  background: var(--accent-dark);
  border-color: transparent;
}

.back {
  display: inline-flex;
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.document {
  max-width: 820px;
}

.support-card {
  margin-top: 22px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
}

.support-card h2 {
  margin-top: 0;
}

.muted {
  color: var(--muted);
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 28px, 960px);
    padding: 36px 0;
  }

  .hero {
    min-height: calc(100vh - 72px);
  }
}