/* Romana's Book - Book Detail Page Styles */

/* ================================
   Book Hero Section
================================ */

.book-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 90px;
  background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-ivory) 100%);
  position: relative;
  overflow: hidden;
}

.book-hero__bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M40 0C17.9 0 0 17.9 0 40s17.9 40 40 40 40-17.9 40-40S62.1 0 40 0zm0 70c-16.5 0-30-13.5-30-30S23.5 10 40 10s30 13.5 30 30-13.5 30-30 30z' fill='%23C9A962'/%3E%3C/svg%3E");
}

.book-hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Book Cover Display */
.book-hero__cover {
  position: relative;
  perspective: 1500px;
}

.book-hero__cover-wrapper {
  position: relative;
  transform-style: preserve-3d;
  animation: bookFloat 6s ease-in-out infinite;
}

@keyframes bookFloat {
  0%, 100% {
    transform: translateY(0) rotateY(-5deg);
  }
  50% {
    transform: translateY(-15px) rotateY(5deg);
  }
}

.book-hero__cover-image {
  width: 100%;
  max-width: 400px;
  border-radius: var(--radius-lg);
  box-shadow: 
    0 30px 60px rgba(0, 0, 0, 0.2),
    0 0 0 1px rgba(201, 169, 98, 0.2);
  transition: transform var(--transition-elegant);
}

.book-hero__cover-wrapper:hover .book-hero__cover-image {
  transform: scale(1.02);
}

/* Gold Foil Frame Effect */
.book-hero__cover::before {
  content: '';
  position: absolute;
  top: -15px;
  left: -15px;
  right: 15px;
  bottom: 15px;
  border: 2px solid var(--color-gold);
  border-radius: var(--radius-lg);
  z-index: -1;
  opacity: 0.5;
}

.book-hero__cover::after {
  content: '';
  position: absolute;
  top: 15px;
  left: 15px;
  right: -15px;
  bottom: -15px;
  border: 2px solid var(--color-gold-light);
  border-radius: var(--radius-lg);
  z-index: -1;
  opacity: 0.5;
}

/* Gift Box Badge */
.book-hero__badge {
  position: absolute;
  top: -10px;
  right: -10px;
  padding: var(--space-sm) var(--space-lg);
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
  color: var(--color-text-dark);
  font-family: var(--font-accent);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-gold);
  z-index: 10;
}

/* Book Info Content */
.book-hero__content {
  padding-left: var(--space-2xl);
}

.book-hero__composer {
  font-family: var(--font-accent);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  margin-bottom: var(--space-md);
}

.book-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: var(--space-lg);
  line-height: 1.2;
}

.book-hero__title span {
  display: block;
  font-size: 0.5em;
  font-weight: 400;
  color: var(--color-text-medium);
  font-style: italic;
  margin-top: var(--space-sm);
}

.book-hero__description {
  font-size: 1.125rem;
  color: var(--color-text-medium);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

/* Price & Buy Section */
.book-hero__purchase {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  padding: var(--space-xl);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  margin-bottom: var(--space-xl);
}

.book-hero__price {
  text-align: center;
  padding-right: var(--space-xl);
  border-right: 1px solid var(--color-parchment);
}

.book-hero__price-label {
  font-family: var(--font-accent);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.book-hero__price-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--color-gold-dark);
}

.book-hero__price-value small {
  font-size: 0.5em;
  color: var(--color-text-muted);
}

.book-hero__buy-btn {
  flex: 1;
}

/* ================================
   Book Features Section
================================ */

.book-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.book-feature {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-ivory);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.book-feature:hover {
  background: white;
  box-shadow: var(--shadow-soft);
}

.book-feature__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gold-light);
  border-radius: 50%;
  color: var(--color-primary);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.book-feature__text {
  font-size: 0.875rem;
  color: var(--color-text-medium);
  line-height: 1.4;
}

.book-feature__text strong {
  display: block;
  color: var(--color-text-dark);
  font-weight: 500;
}

/* ================================
   Book Specifications
================================ */

.book-specs {
  background: white;
  padding: var(--space-4xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
}

.book-specs__title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.book-specs__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.book-spec {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.book-spec:hover {
  background: var(--color-cream);
}

.book-spec__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold));
  border-radius: 50%;
  color: var(--color-primary);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.book-spec__content {
  flex: 1;
}

.book-spec__label {
  font-family: var(--font-accent);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.book-spec__value {
  font-size: 1rem;
  color: var(--color-text-dark);
  font-weight: 500;
}

/* ================================
   Music Tracks Section
================================ */

.book-tracks {
  background: var(--color-primary);
  padding: var(--space-4xl);
  border-radius: var(--radius-xl);
  color: white;
  margin-top: var(--space-3xl);
  position: relative;
  overflow: hidden;
}

.book-tracks::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5L30 55M5 30L55 30' stroke='%23ffffff' stroke-width='0.3' opacity='0.1'/%3E%3C/svg%3E");
}

.book-tracks__inner {
  position: relative;
  z-index: 1;
}

.book-tracks__title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: white;
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.book-tracks__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.track-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.track-item:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(8px);
}

.track-item__number {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gold);
  color: var(--color-text-dark);
  font-family: var(--font-accent);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 50%;
  flex-shrink: 0;
}

.track-item__title {
  flex: 1;
  font-size: 0.95rem;
  color: white;
}

.track-item__duration {
  font-family: var(--font-accent);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ================================
   Gallery Section
================================ */

.book-gallery {
  padding: var(--space-4xl) 0;
}

.book-gallery__title {
  font-family: var(--font-display);
  font-size: 2rem;
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.book-gallery__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.book-gallery__item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
}

.book-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.book-gallery__item:hover img {
  transform: scale(1.1);
}

.book-gallery__item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.3));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.book-gallery__item:hover::after {
  opacity: 1;
}

/* ================================
   Related Books
================================ */

.related-books {
  background: var(--color-cream);
  padding: var(--space-4xl) 0;
}

.related-books__title {
  font-family: var(--font-display);
  font-size: 2rem;
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.related-books__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

/* ================================
   Responsive
================================ */

@media (max-width: 1024px) {
  .book-hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .book-hero__cover {
    max-width: 350px;
    margin: 0 auto;
  }
  
  .book-hero__content {
    padding-left: 0;
  }
  
  .book-features {
    grid-template-columns: 1fr;
  }
  
  .book-specs__grid {
    grid-template-columns: 1fr;
  }
  
  .book-tracks__list {
    grid-template-columns: 1fr;
  }
  
  .book-gallery__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .related-books__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .book-hero__purchase {
    flex-direction: column;
    text-align: center;
  }
  
  .book-hero__price {
    padding-right: 0;
    padding-bottom: var(--space-lg);
    border-right: none;
    border-bottom: 1px solid var(--color-parchment);
  }
  
  .related-books__grid {
    grid-template-columns: 1fr;
  }
}