:root {
  --ink: #1B2A4A;
  --terra: #C46A3A;
  --paper: #F4EFE6;
  --white: #FFFcf7;
  --muted: #5A6478;
  --line: #D4CBBE;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--terra); }
img { max-width: 100%; display: block; }
.wrap { width: min(980px, calc(100% - 2rem)); margin: 0 auto; }
header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(244,239,230,.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
header .inner { display: flex; justify-content: space-between; align-items: center; padding: .85rem 0; gap: 1rem; }
.nav { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
.nav a { text-decoration: none; color: var(--ink); font-size: .92rem; font-weight: 600; }
.brand { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; font-weight: 700; color: var(--terra); text-decoration: none; }
.btn {
  display: inline-block; background: var(--terra); color: #fff !important; text-decoration: none;
  font-weight: 700; padding: .75rem 1.1rem; border-radius: 6px;
}
.hero { display: grid; grid-template-columns: 1.1fr .9fr; gap: 2rem; padding: 2.4rem 0 2rem; align-items: center; }
h1 { font-size: clamp(1.8rem, 4.6vw, 3rem); line-height: 1.08; letter-spacing: -.02em; }
h1 span { color: var(--terra); display: block; }
h2 { font-size: 1.35rem; margin: 1.4rem 0 .7rem; }
h3 { font-size: 1.08rem; margin: 1rem 0 .4rem; }
p { margin: 0 0 .85rem; }
.lede { margin: 1rem 0 1.2rem; color: var(--muted); font-size: 1.08rem; max-width: 36rem; }
.price { font-weight: 700; margin-bottom: .8rem; }
.cover { background: var(--white); border: 1px solid var(--line); border-radius: 10px; padding: .6rem; box-shadow: 0 10px 30px rgba(27,42,74,.08); }
.cover img { border-radius: 6px; }
.pages { padding: 0 0 2rem; }
ul.grid { display: grid; grid-template-columns: 1fr 1fr; gap: .55rem 1.2rem; list-style: none; margin-bottom: 1.2rem; }
ul.grid li { padding: .55rem .7rem; background: var(--white); border: 1px solid var(--line); border-radius: 6px; font-size: .95rem; }
.prose { max-width: 40rem; padding: 1.6rem 0 3rem; }
.prose ul, .prose ol { margin: 0 0 1rem 1.2rem; }
.prose li { margin: 0 0 .4rem; }
.cards { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: .9rem; padding: 0 0 2.4rem; }
.card { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 1rem; text-decoration: none; color: var(--ink); }
.card h3 { margin-top: 0; color: var(--ink); }
.card p { color: var(--muted); font-size: .92rem; margin: 0; }
.faq details { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: .8rem 1rem; margin-bottom: .55rem; }
.faq summary { cursor: pointer; font-weight: 700; }
.fine { padding: 0 0 3rem; color: var(--muted); font-size: .88rem; max-width: 40rem; }
footer { border-top: 1px solid var(--line); padding: 1.2rem 0 2rem; font-size: .8rem; color: var(--muted); display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.sticky { display: none; position: fixed; left: 0; right: 0; bottom: 0; padding: .7rem 1rem; background: var(--ink); z-index: 20; }
.sticky a { display: block; text-align: center; background: var(--terra); color: #fff; font-weight: 700; text-decoration: none; padding: .8rem; border-radius: 6px; }
.meta { color: var(--muted); font-size: .88rem; margin-bottom: 1rem; }
.cta-box { background: var(--white); border: 1.5px solid var(--terra); border-radius: 8px; padding: 1rem 1.1rem; margin: 1.4rem 0; }
@media (max-width: 760px) {
  .hero, .cards { grid-template-columns: 1fr; }
  ul.grid { grid-template-columns: 1fr; }
  .sticky { display: block; }
  .fine, .prose { padding-bottom: 5rem; }
}