:root {
  --teal: #1e8c8c;
  --teal-dark: #156868;
  --orange: #e87828;
  --cream: #fff8e7;
  --ink: #1a1a1a;
  --muted: #555;
  --line: #e5e5e5;
  --max: 720px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink);
  background: #fafafa;
}
a { color: var(--teal-dark); }
a:hover { color: var(--orange); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }
.site-header {
  background: var(--teal);
  color: #fff;
  padding: 1rem 0;
  border-bottom: 4px solid var(--orange);
}
.site-header a { color: #fff; text-decoration: none; }
.brand { font-family: Helvetica, Arial, sans-serif; font-weight: 700; font-size: 1.05rem; letter-spacing: 0.02em; }
.nav { display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; align-items: center; justify-content: space-between; }
.nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.85rem; font-family: Helvetica, Arial, sans-serif; font-size: 0.9rem; }
.nav a { opacity: 0.95; }
.nav a:hover { opacity: 1; text-decoration: underline; color: #fff; }
.hero {
  background: var(--cream);
  border-bottom: 1px solid var(--line);
  padding: 2.5rem 0 2rem;
}
.hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  margin: 0 0 0.5rem;
  color: var(--teal-dark);
  line-height: 1.2;
}
.tagline { font-size: 1.1rem; color: var(--muted); margin: 0 0 1.25rem; }
.btn {
  display: inline-block;
  font-family: Helvetica, Arial, sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  background: var(--orange);
  color: #fff !important;
  text-decoration: none !important;
  padding: 0.7rem 1.2rem;
  border-radius: 6px;
  border: none;
}
.btn:hover { background: #d4681c; color: #fff !important; }
.btn-secondary {
  background: transparent;
  color: var(--teal-dark) !important;
  border: 2px solid var(--teal);
  margin-left: 0.5rem;
}
.btn-secondary:hover { background: var(--teal); color: #fff !important; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
main { padding: 2rem 0 3rem; }
h2 { font-size: 1.35rem; color: var(--teal-dark); margin: 2rem 0 0.75rem; }
h3 { font-size: 1.1rem; color: var(--orange); margin: 1.5rem 0 0.5rem; }
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.25rem;
  margin: 1rem 0;
  display: grid;
  gap: 1rem;
  align-items: start;
}
@media (min-width: 640px) {
  .card.book { grid-template-columns: 160px 1fr; }
}
.card img.cover {
  width: 100%;
  max-width: 160px;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
  justify-self: center;
}
.muted { color: var(--muted); font-size: 0.95rem; }
.disclaimer {
  background: #fff;
  border-left: 4px solid var(--orange);
  padding: 0.9rem 1rem;
  font-size: 0.92rem;
  color: var(--muted);
  margin: 1.5rem 0;
}
.faq details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin: 0.5rem 0;
}
.faq summary {
  font-family: Helvetica, Arial, sans-serif;
  font-weight: 700;
  cursor: pointer;
  color: var(--teal-dark);
}
.site-footer {
  background: #222;
  color: #ccc;
  font-size: 0.85rem;
  font-family: Helvetica, Arial, sans-serif;
  padding: 1.5rem 0;
}
.site-footer a { color: #9fd; }
.pill {
  display: inline-block;
  font-family: Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--teal);
  color: #fff;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}
ul.features { padding-left: 1.2rem; }
ul.features li { margin: 0.35rem 0; }