:root {
  color-scheme: light;
  --background: #f6f7f4;
  --surface: #ffffff;
  --text: #171a18;
  --muted: #5c625e;
  --line: #d8ddd9;
  --accent: #16753a;
  --accent-dark: #0d5328;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--background);
}

body {
  margin: 0;
  color: var(--text);
  background: var(--background);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

main {
  width: min(100% - 40px, 860px);
  margin: 0 auto;
  padding: 48px 0 72px;
}

.site-header {
  min-height: 32vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  margin: 0;
  color: var(--accent-dark);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3.25rem, 12vw, 6.75rem);
  font-weight: 700;
  line-height: 0.9;
}

.tagline {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  font-weight: 600;
}

section {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.eyebrow,
.number {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  max-width: 720px;
}

h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.25rem, 7vw, 4.4rem);
  font-weight: 500;
  line-height: 1.08;
}

h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.2;
}

.problem-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
  margin-top: 56px;
}

.problem-list article {
  border-top: 3px solid var(--accent);
  padding-top: 18px;
}

.problem-list article > p:last-child,
.answer > p:last-child {
  color: var(--muted);
}

.comparison ul {
  max-width: 720px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.comparison li {
  position: relative;
  padding: 14px 0 14px 30px;
  border-top: 1px solid var(--line);
}

.comparison li::before {
  content: "";
  position: absolute;
  top: 25px;
  left: 2px;
  width: 10px;
  height: 10px;
  background: var(--accent);
}

.answer {
  border-bottom: 0;
}

.answer h2 {
  max-width: 760px;
  font-size: clamp(2rem, 6vw, 3.5rem);
}

.answer > p:last-child {
  margin-top: 24px;
  font-size: 1.1rem;
}

@media (max-width: 640px) {
  main {
    width: min(100% - 28px, 860px);
    padding-top: 24px;
  }

  .site-header {
    min-height: 27vh;
  }

  section {
    padding: 44px 0;
  }

  .problem-list {
    grid-template-columns: 1fr;
    gap: 36px;
    margin-top: 40px;
  }
}