:root {
  --bg: #f7f3f8;
  --card: #ffffff;
  --text: #2f1f33;
  --muted: #6f6074;
  --primary: #b84f8f;
  --primary-dark: #92376f;
  --border: #e8dce9;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.4rem;
  border-bottom: 1px solid var(--border);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { font-weight: 800; color: var(--text); }

.main-nav {
  display: flex;
  gap: 0.8rem;
  align-items: center;
}

.container { max-width: 1060px; margin: 0 auto; padding: 0 1rem; }
.section { padding: 2rem 0; }
.narrow { max-width: 620px; }

.hero {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.3fr 1fr;
  padding: 2rem 1rem;
}

.eyebrow {
  color: var(--primary-dark);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
}

.hero h1 { font-size: clamp(1.8rem, 4vw, 2.7rem); margin: 0.3rem 0 0.8rem; }
.hero-card {
  background: linear-gradient(180deg, #fff, #f9f3fb);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem;
}

.actions { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 1rem; }

.btn {
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  padding: 0.7rem 1rem;
  display: inline-flex;
  align-items: center;
}
.btn:hover { opacity: 0.95; text-decoration: none; }
.btn-small { padding: 0.48rem 0.75rem; font-size: 0.88rem; }
.btn-secondary { background: #f3eaf2; color: var(--text); border: 1px solid var(--border); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
}

label { display: block; margin-top: 0.8rem; margin-bottom: 0.25rem; font-weight: 600; color: var(--muted); }
input, textarea, select {
  width: 100%;
  border-radius: 11px;
  border: 1px solid var(--border);
  padding: 0.66rem 0.74rem;
  font: inherit;
  background: #fff;
}

.status { min-height: 1.3rem; margin-top: 0.7rem; }
.status.error { color: #ad3767; }
.status.ok { color: #3c8a64; }

.book-grid, .plan-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.book-card, .plan-card, .book-row {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
}
.plan-card.featured { border-color: #d897bf; box-shadow: 0 10px 22px rgba(160, 82, 130, 0.15); }
.price { font-size: 1.5rem; font-weight: 800; margin: 0.5rem 0; }
.badge { background: #ecf9f2; color: #2e7f57; border-radius: 999px; padding: 0.18rem 0.55rem; font-size: 0.8rem; }

.muted { color: var(--muted); }
.hidden { display: none; }

.split {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr 1fr;
}

.books-list { display: grid; gap: 0.7rem; }
.row-head { display: flex; align-items: center; justify-content: space-between; gap: 0.6rem; }

@media (max-width: 900px) {
  .hero, .split { grid-template-columns: 1fr; }
  .main-nav { flex-wrap: wrap; justify-content: flex-end; }
}

.single-column {
  grid-template-columns: 1fr;
  max-width: 920px;
  margin: 0 auto;
}

.books-list {
  display: grid;
  gap: 0.8rem;
}

.book-row {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.8rem;
  background: #fff;
}

.book-row h3 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.book-row p {
  margin: 0.2rem 0;
}

.book-row a {
  color: var(--primary-strong);
  font-weight: 600;
}