/* ============================================================
   MONEY SKILLS CLUB — Book Page Styles
   ============================================================ */

/* ── HERO ─────────────────────────────────────────────────── */
.book-hero {
  min-height: 100vh;
  padding-top: calc(var(--nav-h) + 64px);
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
  background: var(--white);
}
.book-hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.book-hero__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 72px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.book-hero__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--black);
}
.book-hero__sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
  max-width: 480px;
}
.book-hero__price {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
}
.book-guarantee {
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* Book Meta */
.book-hero__meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 32px;
}
.book-meta-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}
.book-meta-item__icon { font-size: 1.4rem; flex-shrink: 0; }
.book-meta-item strong { display: block; font-size: 0.9rem; color: var(--black); font-weight: 700; }
.book-meta-item span { font-size: 0.75rem; color: var(--text-muted); }

/* ── 3D BOOK COVER ────────────────────────────────────────── */
.book-cover-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.book-cover {
  display: flex;
  transform-style: preserve-3d;
  transform: perspective(600px) rotateY(-22deg);
  transition: transform 0.5s ease;
  filter: drop-shadow(-20px 20px 40px rgba(0,0,0,0.2));
}
.book-cover-wrap:hover .book-cover {
  transform: perspective(600px) rotateY(-8deg);
}
.book-cover__front {
  width: 200px;
  height: 280px;
  background: linear-gradient(160deg, #0A0A0A 0%, #1a1a1a 100%);
  border-radius: 4px 16px 16px 4px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  padding: 24px 20px;
  position: relative;
  overflow: hidden;
}
.book-cover__front::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--orange);
  border-radius: 0 16px 0 0;
}
.book-cover__front::after {
  content: '';
  position: absolute;
  bottom: -40px; right: -40px;
  width: 120px; height: 120px;
  background: radial-gradient(circle, rgba(255,107,0,0.15), transparent 70%);
  border-radius: 50%;
}
.book-cover__label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--orange);
}
.book-cover__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.25;
  letter-spacing: -0.02em;
  flex: 1;
  display: flex;
  align-items: center;
  padding: 12px 0;
}
.book-cover__decor {
  font-size: 2.4rem;
  position: absolute;
  bottom: 20px;
  right: 20px;
  opacity: 0.8;
}
.book-cover__tag {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.35);
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.1);
  padding: 3px 8px;
  border-radius: 999px;
  width: fit-content;
}
.book-cover__spine {
  width: 28px;
  height: 280px;
  background: linear-gradient(180deg, #050505, #111);
  border-radius: 4px 0 0 4px;
  order: -1;
  position: relative;
}
.book-cover__spine::after {
  content: 'Money Skills Club';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-90deg);
  white-space: nowrap;
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.2);
  text-transform: uppercase;
}

/* Format badges under book */
.format-badges {
  display: flex;
  gap: 8px;
}
.format-badge {
  background: var(--orange-light);
  border: 1.5px solid var(--orange);
  color: var(--orange);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.05em;
}

/* ── CHAPTERS ─────────────────────────────────────────────── */
.chapters {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.chapter {
  display: flex;
  gap: 20px;
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.3s ease;
}
.chapter:hover {
  border-color: var(--orange);
  box-shadow: var(--shadow-orange);
  transform: translateY(-3px);
}
.chapter__num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 900;
  color: var(--orange);
  opacity: 0.3;
  line-height: 1;
  flex-shrink: 0;
  width: 40px;
}
.chapter__body h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--black);
}
.chapter__body p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ── FOR WHOM ─────────────────────────────────────────────── */
.forwhom-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.forwhom-card {
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s ease;
}
.forwhom-card:hover { border-color: var(--orange); box-shadow: var(--shadow-orange); transform: translateY(-4px); }
.forwhom-card__icon { font-size: 2.8rem; margin-bottom: 16px; }
.forwhom-card h3 { font-family: 'Space Grotesk', sans-serif; font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; color: var(--black); }
.forwhom-card p { font-size: 0.875rem; color: var(--text-muted); }

/* ── FORMATS ──────────────────────────────────────────────── */
.formats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.format-card {
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s ease;
}
.format-card:hover { border-color: var(--orange); box-shadow: var(--shadow-orange); transform: translateY(-4px); }
.format-card__icon { font-size: 2.8rem; margin-bottom: 16px; }
.format-card h3 { font-family: 'Space Grotesk', sans-serif; font-size: 1.2rem; font-weight: 800; margin-bottom: 10px; color: var(--black); }
.format-card p { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 16px; }
.format-card__devices { font-size: 0.75rem; color: var(--orange); font-weight: 600; }

/* ══════════════════════════════════════════════════════════
   PURCHASE MODAL
══════════════════════════════════════════════════════════ */
.purchase-modal {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.purchase-modal.active { opacity: 1; pointer-events: all; }

.purchase-modal__box {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  max-width: 480px;
  width: 100%;
  position: relative;
  box-shadow: 0 24px 80px rgba(0,0,0,0.2);
  animation: slideIn 0.3s ease;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.purchase-modal__close {
  position: absolute;
  top: 20px; right: 20px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gray-100);
  border: none;
  font-size: 1rem;
  color: var(--text-muted);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.purchase-modal__close:hover { background: var(--orange); color: #fff; }

.purchase-step { text-align: center; }
.purchase-modal__emoji { font-size: 3rem; margin-bottom: 16px; }
.purchase-step h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--black);
  margin-bottom: 10px;
}
.purchase-step > p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 28px; }

.purchase-form { display: flex; flex-direction: column; gap: 12px; }
.purchase-input {
  padding: 16px 20px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  color: var(--black);
  outline: none;
  transition: border-color 0.2s;
}
.purchase-input:focus { border-color: var(--orange); }
.purchase-input::placeholder { color: var(--text-dim); }
.purchase-price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  font-size: 0.95rem;
  color: var(--black);
}
.purchase-price-row strong { font-size: 1.2rem; color: var(--orange); }
.purchase-secure {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 4px;
}

/* Download links */
.download-links { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }
.download-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--gray-200);
  background: var(--white);
  text-decoration: none;
  color: var(--black);
  transition: all 0.2s ease;
  text-align: left;
}
.download-btn:hover { border-color: var(--orange); box-shadow: var(--shadow-orange); transform: translateY(-2px); }
.download-btn__icon { font-size: 1.8rem; flex-shrink: 0; }
.download-btn div { flex: 1; }
.download-btn strong { display: block; font-size: 0.95rem; font-weight: 700; }
.download-btn span { font-size: 0.78rem; color: var(--text-muted); }
.download-btn__arrow { font-size: 1.2rem; color: var(--orange); font-weight: 700; flex-shrink: 0; }
.download-btn--pdf:hover  { border-color: #e74c3c; box-shadow: 0 4px 20px rgba(231,76,60,0.15); }
.download-btn--epub:hover { border-color: var(--orange); }
.download-btn--mobi:hover { border-color: #3498db; box-shadow: 0 4px 20px rgba(52,152,219,0.15); }
.download-note { font-size: 0.78rem; color: var(--text-dim); }

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .book-hero__inner { grid-template-columns: 1fr; text-align: center; }
  .book-cover-wrap { margin: 0 auto; }
  .book-hero__sub { margin: 0 auto 32px; }
  .book-hero__meta { grid-template-columns: 1fr 1fr; }
  .chapters { grid-template-columns: 1fr; }
  .forwhom-grid { grid-template-columns: 1fr; }
  .formats-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .book-hero { padding-top: calc(var(--nav-h) + 32px); }
  .purchase-modal__box { padding: 32px 24px; }
  .book-hero__meta { grid-template-columns: 1fr; }
}