:root {
  --brand-dark: #1c1a1a;
  --brand-burgundy: #7a1f2b;
  --brand-burgundy-dark: #611722;
  --brand-rose: #f5ecef;
  --brand-border: rgba(0,0,0,.08);
  --brand-muted: #6c757d;
}

body {
  font-family: Inter, system-ui, sans-serif;
  color: var(--brand-dark);
  background: #fff;
}

h1, h2, h3, h4, .display-font {
  font-family: 'Playfair Display', Georgia, serif;
  letter-spacing: -.02em;
}

.site-header {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--brand-border);
}

.navbar-brand {
  font-weight: 700;
}

.btn-brand {
  background: var(--brand-burgundy);
  border-color: var(--brand-burgundy);
  color: #fff;
}

.btn-brand:hover {
  background: var(--brand-burgundy-dark);
  border-color: var(--brand-burgundy-dark);
  color: #fff;
}

.btn-outline-brand {
  color: var(--brand-burgundy);
  border-color: var(--brand-burgundy);
}

.btn-outline-brand:hover {
  color: #fff;
  background: var(--brand-burgundy);
  border-color: var(--brand-burgundy);
}

.section-kicker {
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: .8rem;
  font-weight: 700;
  color: var(--brand-burgundy);
}

.page-hero {
  padding: 8rem 0 4rem;
  background: linear-gradient(135deg,#faf3f5,#f1e3e7);
  border-bottom: 1px solid var(--brand-border);
}

.section-space {
  padding: 4rem 0;
}

.book-card, .detail-card, .pricing-card, .intro-card {
  border: 1px solid var(--brand-border);
  border-radius: 1.25rem;
  background: #fff;
  box-shadow: 0 1rem 2rem rgba(0,0,0,.04);
}

.book-card {
  height: 100%;
  overflow: hidden;
}

.book-cover {
  aspect-ratio: 4/5;
  background: linear-gradient(180deg,var(--brand-rose),#fff);
  border-bottom: 1px solid var(--brand-border);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
}

.book-cover span {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.65rem;
  line-height: 1.15;
  color: var(--brand-burgundy);
}

.book-meta {
  font-size: .86rem;
  color: var(--brand-muted);
}

.book-actions .btn {
  width: 100%;
}

.footer {
  background: #171415;
  color: rgba(255,255,255,.82);
}

.footer a {
  color: rgba(255,255,255,.82);
  text-decoration: none;
}

.footer a:hover {
  color: #fff;
}

.price-line {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .75rem 0;
  border-bottom: 1px solid var(--brand-border);
}

.price-line:last-child {
  border-bottom: 0;
}

.placeholder-note {
  font-size: .92rem;
  color: var(--brand-muted);
}