:root {
  color-scheme: light;
  --ink: #17332b;
  --muted: #566b64;
  --line: #d9e4df;
  --paper: #f7fbf8;
  --card: #ffffff;
  --accent: #1e6f55;
  --accent-soft: #e4f4ec;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, #dff3e9 0, transparent 32rem),
    var(--paper);
  font-size: 17px;
  line-height: 1.7;
}

main,
footer {
  width: min(760px, calc(100% - 40px));
  margin-inline: auto;
}

main {
  padding: 72px 0 40px;
}

.hero {
  padding: 40px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: color-mix(in srgb, var(--card) 92%, transparent);
  box-shadow: 0 20px 60px rgb(23 51 43 / 8%);
}

.hero.compact {
  padding-block: 32px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.12em;
}

h1,
h2 {
  line-height: 1.2;
}

h1 {
  margin: 0;
  font-size: clamp(2.35rem, 7vw, 4.8rem);
  letter-spacing: -0.055em;
}

h2 {
  margin: 0 0 12px;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.lead {
  max-width: 62ch;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

section,
.thai {
  margin-top: 28px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card);
}

.thai {
  background: var(--accent-soft);
}

p,
ul {
  margin: 0;
}

p + p,
p + ul,
ul + p {
  margin-top: 14px;
}

li + li {
  margin-top: 6px;
}

a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

.back {
  margin: 30px 4px 0;
}

footer {
  display: flex;
  gap: 12px;
  justify-content: center;
  padding: 24px 0 48px;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 560px) {
  body {
    font-size: 16px;
  }

  main {
    padding-top: 28px;
  }

  .hero,
  section,
  .thai {
    padding: 22px;
    border-radius: 16px;
  }
}