:root {
  --max-width: 720px;
  --text-color: #111;
  --muted: #666;
  --bg: #ffffff;
  --accent: #000;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text-color);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.7;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 20px;
}

h1 {
  font-size: 2.8rem;
  line-height: 1.22;
  margin-bottom: 28px;
}

h2 {
  font-size: 1.6rem;
  margin-top: 80px;
  margin-bottom: 24px;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

p {
  font-size: 1.05rem;
  margin-bottom: 20px;
}

.cta {
  display: inline-block;
  margin: 32px 0;
  padding: 14px 28px;
  border: 2px solid var(--accent);
  text-decoration: none;
  color: var(--accent);
  font-weight: bold;
}

.cta:hover {
  background: var(--accent);
  color: #fff;
}

.divider {
  height: 60px;
}

.book {
  margin-bottom: 40px;
}

.offer {
  background: #f6f6f6;
  padding: 40px;
  margin: 80px 0;
}

.columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

ul {
  padding-left: 18px;
}

li {
  margin-bottom: 10px;
}

footer {
  margin-top: 120px;
  padding-top: 20px;
  border-top: 1px solid #eee;
  font-size: 0.9rem;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 700px) {
  .columns {
    grid-template-columns: 1fr;
  }
}
header {
  opacity: 0.9;
}

header strong {
  font-weight: 600;
  font-size: 0.95rem;
}
.cta.subtle {
  margin-top: 20px;
  margin-bottom: 40px;
}