/**
 * Card Carousel Component
 * Horizontal scrolling image-first card layout with scroll-snap
 * Pure CSS implementation with optional JS enhancements
 *
 * @package LearningByHart
 * @since 2.0.0
 */

/* ========================================
   Carousel Container
   ======================================== */

.card-carousel-section {
  margin: var(--space-3xl) 0;
  clear: both;
  position: relative;
}

.card-carousel-section h3 {
  text-align: center;
  margin-bottom: var(--space-2xl);
  font-family: var(--font-serif);
  color: var(--color-primary);
}

/* Carousel wrapper - extends to viewport edges */
.card-carousel-wrapper {
  position: relative;
  margin: 0 calc(-1 * var(--space-md)); /* Negative margin for edge-to-edge */
}

/* Fade gradient overlay - absolutely positioned at viewport right edge */
.card-carousel-fade {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: clamp(60px, 10vw, 120px);
  background: linear-gradient(to left, var(--color-bg) 0%, transparent 100%);
  pointer-events: none;
  z-index: 2;
  opacity: 0.9;
}

/* Carousel scroll container */
.card-carousel {
  display: flex;
  gap: var(--space-md);
  overflow-x: auto;
  overflow-y: visible; /* Allow shadows and hover effects */
  scroll-snap-type: x mandatory;
  scroll-padding: var(--space-md);
  -webkit-overflow-scrolling: touch;
  padding: var(--space-lg) var(--space-md) var(--space-lg); /* Increased top padding, horizontal for spacing */
}

/* Hide scrollbar but keep functionality */
.card-carousel::-webkit-scrollbar {
  height: 6px;
}

.card-carousel::-webkit-scrollbar-track {
  background: var(--color-bg-alt);
  border-radius: var(--radius-full);
}

.card-carousel::-webkit-scrollbar-thumb {
  background: var(--color-border-dark);
  border-radius: var(--radius-full);
}

.card-carousel::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-light);
}

/* Firefox scrollbar */
.card-carousel {
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-dark) var(--color-bg-alt);
}

/* ========================================
   Carousel Card
   ======================================== */

.card-carousel__item {
  flex: 0 0 auto;
  scroll-snap-align: start;
  width: clamp(280px, 85vw, 400px); /* Responsive card width */
  max-width: 100%;
}

/* Desktop: show multiple cards with peek */
@media (min-width: 640px) {
  .card-carousel__item {
    width: clamp(320px, 42vw, 450px); /* Show ~2.3 cards */
  }
}

@media (min-width: 1024px) {
  .card-carousel__item {
    width: clamp(360px, 32vw, 480px); /* Show ~3.2 cards */
  }
}

/* ========================================
   Carousel Card Styling
   ======================================== */

.card-carousel-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-slow);
  text-decoration: none;
  color: inherit;
}

.card-carousel-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(44, 40, 36, 0.15), 0 8px 16px rgba(44, 40, 36, 0.10);
  border-color: var(--color-accent);
}

/* Top accent border */
.card-carousel-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
  opacity: 0.8;
  transition: opacity var(--transition-base);
  z-index: 1;
}

.card-carousel-card:hover::before {
  opacity: 1;
  height: 5px;
}

/* ========================================
   Carousel Card Image (Image-First)
   ======================================== */

.card-carousel-card__image {
  position: relative;
  width: 100%;
  height: clamp(200px, 35vh, 320px); /* Taller for prominence: 60-70% of card */
  overflow: hidden;
  background: var(--color-bg-alt);
  flex-shrink: 0;
}

.card-carousel-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.card-carousel-card:hover .card-carousel-card__image img {
  transform: scale(1.08);
}

/* ========================================
   Badge Overlays - Reusable Components
   ======================================== */

/* Category/Tag Badge - Article carousel cards
   Small rectangular badge showing series name or tag
   Usage: Overlaid on top-left of article card images */
.card-carousel-card__category {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-primary);
  color: var(--color-bg-elevated);
  font-family: var(--font-sans);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  z-index: 2;
}

/* Episode Number Badge - Series carousel episode cards
   Circular badge showing episode position (e.g., "3 of 10")
   Usage: Overlaid on top-left of series episode card images */
.card-carousel-card__episode {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  min-width: clamp(40px, 8vw, 56px);
  height: clamp(40px, 8vw, 56px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs);
  background: rgba(255, 255, 255, 0.98);
  color: var(--color-primary-dark);
  font-family: var(--font-sans);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 2;
  border: 2px solid var(--color-primary-light);
}

.card-carousel-card__episode-number {
  font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-xl));
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary);
}

.card-carousel-card__episode-total {
  font-size: var(--font-size-xs);
  font-weight: 600;
  line-height: 1;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* Status Badge - All Series carousel status
   Rectangular badge showing series status (Full Series, Partial Series, Coming Soon)
   Status is automatically calculated based on published episodes
   Usage: Overlaid on top-right of all series card images */
.card-carousel-card__status {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  z-index: 2;
  border: 2px solid;
}

/* Status Badge Variants */
.card-carousel-card__status.status-full {
  background: rgba(92, 184, 92, 0.95); /* Green - matches series card */
  color: var(--color-bg-elevated);
  border-color: rgba(92, 184, 92, 1);
}

.card-carousel-card__status.status-partial {
  background: rgba(91, 192, 222, 0.95); /* Blue - matches series card */
  color: var(--color-bg-elevated);
  border-color: rgba(91, 192, 222, 1);
}

.card-carousel-card__status.status-coming-soon {
  background: rgba(240, 173, 78, 0.95); /* Orange - matches series card */
  color: var(--color-bg-elevated);
  border-color: rgba(240, 173, 78, 1);
}

/* ========================================
   Series Title Card (First Card with Featured Image)
   ======================================== */

.card-carousel-title-card {
  flex: 0 0 auto;
  scroll-snap-align: start;
  width: clamp(280px, 85vw, 400px);
  max-width: 100%;
}

.card-carousel-title-card__inner {
  position: relative;
  height: 100%;
  min-height: clamp(380px, 60vh, 520px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-slow);
  opacity: 0.9;
}

.card-carousel-title-card__inner:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(44, 40, 36, 0.12), 0 8px 16px rgba(44, 40, 36, 0.08);
  border-color: var(--color-accent);
  opacity: 1;
}

/* Featured image background */
.card-carousel-title-card__image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.card-carousel-title-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Opacity mask overlay - light for differentiation */
.card-carousel-title-card__image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg,
    rgba(44, 40, 36, 0.3) 0%,
    rgba(44, 40, 36, 0.4) 100%
  );
  z-index: 1;
}

/* Content overlay */
.card-carousel-title-card__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

/* Title Card Badge Overlays - Centered on featured image
   White semi-transparent background styling for title and count badges
   Usage: Stacked vertically on series title card over featured image */

/* Title Badge - Series name */
.card-carousel-title-card__title {
  margin: 0;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-serif);
  font-size: clamp(var(--font-size-xl), 4vw, var(--font-size-2xl));
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--color-primary-light);
}

/* Count Badge - Episode count (e.g., "5 Episodes") */
.card-carousel-title-card__count {
  margin: 0;
  padding: var(--space-xs) var(--space-md);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}

/* Desktop: match other carousel items */
@media (min-width: 640px) {
  .card-carousel-title-card {
    width: clamp(320px, 42vw, 450px);
  }
}

@media (min-width: 1024px) {
  .card-carousel-title-card {
    width: clamp(360px, 32vw, 480px);
  }
}

/* ========================================
   Carousel Card Content
   ======================================== */

.card-carousel-card__content {
  flex: 1;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.card-carousel-card__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-xl));
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  transition: color var(--transition-base);
}

.card-carousel-card:hover .card-carousel-card__title {
  color: var(--color-primary-dark);
}

.card-carousel-card__excerpt {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--color-text-muted);
  flex: 1;
  /* Limit to 3 lines */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ========================================
   Aspect Ratio Modifiers for Carousel Images
   ======================================== */

.card-carousel-card__image--4-3 {
  aspect-ratio: 4 / 3;
  height: auto;
}

.card-carousel-card__image--3-4 {
  aspect-ratio: 3 / 4;
  height: auto;
}

.card-carousel-card__image--16-9 {
  aspect-ratio: 16 / 9;
  height: auto;
}

.card-carousel-card__image--1-1 {
  aspect-ratio: 1 / 1;
  height: auto;
}

/* ========================================
   Accessibility & Reduced Motion
   ======================================== */

.card-carousel-card:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .card-carousel {
    scroll-behavior: auto;
  }

  .card-carousel-card,
  .card-carousel-card__image img,
  .card-carousel-card::before {
    transition: none;
  }
}

/* ========================================
   Print
   ======================================== */

@media print {
  .card-carousel-section {
    display: none;
  }
}