/* ==========================================================================
   PAGES-BOOK.CSS — Individual book page styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   BOOK HERO
   -------------------------------------------------------------------------- */
.book-hero {
  position: relative;
  padding-block: var(--space-12);
  overflow: clip;
}

.book-hero__inner {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--space-10);
  align-items: start;
}

.book-hero__cover {
  position: sticky;
  top: calc(var(--space-20) + 72px);
  animation: fadeSlideUp 0.5s ease both;
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.book-hero__cover-img {
  width: 100%;
  aspect-ratio: 2/3;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: linear-gradient(135deg, rgba(250, 204, 21, 0.15), rgba(245, 158, 11, 0.1));
  box-shadow: var(--shadow-xl);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.book-hero__cover-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.book-hero__cover-placeholder {
  text-align: center;
  padding: var(--space-5);
}

.book-hero__cover-placeholder-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-2);
}

.book-hero__cover-placeholder-sub {
  color: var(--color-text-muted);
  font-weight: var(--font-weight-semibold);
}

.book-hero__content {
  animation: fadeSlideUp 0.6s ease 0.1s both;
}

.book-hero__badge {
  margin-bottom: var(--space-4);
}

.book-hero__title {
  margin-bottom: var(--space-3);
}

.book-hero__tagline {
  font-size: var(--font-size-xl);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  max-width: 50ch;
}

.book-hero__cta {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
}

.book-hero__meta {
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.book-hero__meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.book-hero__meta-label {
  color: var(--color-text-muted2);
}

/* Background */
.book-hero__bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(800px 400px at 0% 0%, rgba(250, 204, 21, 0.12), transparent 50%),
    radial-gradient(600px 400px at 100% 50%, rgba(245, 158, 11, 0.08), transparent 50%);
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   BOOK GALLERY
   -------------------------------------------------------------------------- */
.book-gallery {
  display: grid;
  gap: var(--space-4);
}

.book-gallery__item {
  margin: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.book-gallery__item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.book-gallery__item img {
  width: 100%;
  height: auto;
  display: block;
}

/* --------------------------------------------------------------------------
   SYNOPSIS
   -------------------------------------------------------------------------- */
.book-synopsis {
  max-width: var(--max-width-narrow);
  margin-inline: auto;
}

.book-synopsis p {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text);
}

.book-synopsis p + p {
  margin-top: var(--space-5);
}

/* --------------------------------------------------------------------------
   WHAT TO EXPECT (features list)
   -------------------------------------------------------------------------- */
.expect-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.expect-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.expect-item:hover {
  border-color: rgba(250, 204, 21, 0.25);
  transform: translateY(-2px);
}

.expect-item__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-accent-subtle);
  display: grid;
  place-items: center;
  font-size: var(--font-size-lg);
}

.expect-item__icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-accent);
}

.expect-item__text h4 {
  margin-bottom: var(--space-1);
  font-size: var(--font-size-base);
}

.expect-item__text p {
  font-size: var(--font-size-sm);
}

/* --------------------------------------------------------------------------
   WHO IS THIS FOR
   -------------------------------------------------------------------------- */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.audience-panel {
  padding: var(--space-6);
}

.audience-panel__title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.audience-panel__icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  font-size: var(--font-size-lg);
}

.audience-panel--yes .audience-panel__icon {
  background: rgba(34, 197, 94, 0.15);
  color: var(--color-success);
}

.audience-panel--no .audience-panel__icon {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-error);
}

/* --------------------------------------------------------------------------
   FORMATS
   -------------------------------------------------------------------------- */
.formats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.format-card {
  text-align: center;
  padding: var(--space-6);
}

.format-card__icon {
  width: 48px;
  height: 48px;
  margin-inline: auto;
  margin-bottom: var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--color-accent-subtle);
  display: grid;
  place-items: center;
  font-size: var(--font-size-2xl);
}

.format-card__title {
  margin-bottom: var(--space-2);
}

.format-card__price {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.format-card__price span {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-normal);
}

.format-card__note {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted2);
  margin-bottom: var(--space-4);
}

/* --------------------------------------------------------------------------
   ABOUT THE AUTHOR
   -------------------------------------------------------------------------- */
.author-section {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-6);
  align-items: start;
}

.author-avatar {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  display: grid;
  place-items: center;
  font-size: var(--font-size-4xl);
  overflow: hidden;
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-bio h3 {
  margin-bottom: var(--space-3);
}

.author-bio p {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
}

/* --------------------------------------------------------------------------
   FAQ ACCORDION
   -------------------------------------------------------------------------- */
.faq-section .accordion {
  max-width: var(--max-width-narrow);
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   FINAL CTA
   -------------------------------------------------------------------------- */
.final-cta {
  text-align: center;
  padding: var(--space-12);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: linear-gradient(135deg, rgba(250, 204, 21, 0.1), rgba(245, 158, 11, 0.06));
}

.final-cta__title {
  margin-bottom: var(--space-3);
}

.final-cta__desc {
  max-width: 50ch;
  margin-inline: auto;
  margin-bottom: var(--space-6);
}

.final-cta__actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   DISCLAIMER
   -------------------------------------------------------------------------- */
.book-disclaimer {
  max-width: var(--max-width-narrow);
  margin-inline: auto;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  background: var(--color-surface);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted2);
  text-align: center;
}

/* --------------------------------------------------------------------------
   RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 980px) {
  .book-hero__inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .book-hero__cover {
    position: relative;
    top: 0;
    max-width: 280px;
    margin-inline: auto;
  }

  .expect-grid {
    grid-template-columns: 1fr;
  }

  .audience-grid {
    grid-template-columns: 1fr;
  }

  .formats-grid {
    grid-template-columns: 1fr;
  }

  .author-section {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .author-avatar {
    margin-inline: auto;
  }
}