:root {
  --ink: #232323;
  --paper: #fbfaf7;
  --line: #d8d4c8;
  --accent: #3a5a40;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.6;
}

.site-header {
  padding: 4rem 1.5rem 2rem;
  text-align: center;
  border-bottom: 1px solid var(--line);
}

.site-header h1 {
  margin: 0 0 0.5rem;
  font-size: 2.25rem;
  font-weight: 400;
  letter-spacing: 0.01em;
}

.tagline {
  margin: 0;
  color: #6b6b6b;
  font-style: italic;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

.intro p {
  font-size: 1.1rem;
  max-width: 60ch;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.feature {
  padding: 1.25rem;
  border-left: 2px solid var(--accent);
}

.feature h2 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
}

.feature p {
  margin: 0;
  font-size: 0.95rem;
  color: #444;
}

.site-footer {
  text-align: center;
  padding: 2rem 1.5rem 3rem;
  color: #888;
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .features {
    grid-template-columns: 1fr;
  }
}