/* ==========================================================================
   Author Personal Blog Pro - Series Reading Order Timeline Widget
   Namespace: .apb-widget-series-timeline
   ========================================================================== */

.apb-timeline-section,
.apb-widget-series-timeline {
  position: relative;
  width: 100%;
  display: block;
  margin: 0;
  box-sizing: border-box;
}

.apb-widget-series-timeline .apb-timeline-section,
.apb-timeline-section {
  padding: clamp(2rem, 4vw, 4rem) 0;
  box-sizing: border-box;
  background-color: var(--apb-color-bg-alt, var(--apb-color-surface-alt, #f1f5f9));
}

.apb-widget-series-timeline .apb-timeline-header-wrap {
  text-align: center;
  max-width: 760px;
  margin: 0 auto clamp(2.5rem, 5vw, 4rem);
}

.apb-widget-series-timeline .apb-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--apb-color-primary-light, #e0f2fe);
  color: var(--apb-color-primary, #1e3a8a);
  border: 1px solid rgba(13, 92, 99, 0.25);
  font-family: var(--apb-font-sans, 'Inter', -apple-system, sans-serif);
  font-size: var(--apb-font-size-xs, 0.75rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.85rem;
  border-radius: var(--apb-radius-full, 9999px);
  margin-bottom: var(--apb-space-2, 0.5rem);
}

.apb-widget-series-timeline .apb-timeline-section-title {
  font-family: var(--apb-font-serif, 'Playfair Display', Georgia, serif);
  font-size: clamp(2rem, 3.8vw, 2.75rem);
  color: var(--apb-color-heading, #0f172a);
  margin-bottom: var(--apb-space-2, 0.5rem);
  line-height: 1.2;
}

.apb-widget-series-timeline .apb-timeline-section-desc {
  font-family: var(--apb-font-sans, 'Inter', -apple-system, sans-serif);
  font-size: var(--apb-font-size-base, 1rem);
  color: var(--apb-color-text-muted, #64748b);
  line-height: var(--apb-line-height-base, 1.6);
  margin: 0;
}

/* Timeline Container & Vertical Spine */
.apb-widget-series-timeline .apb-timeline-wrapper {
  position: relative;
  max-width: 980px;
  margin: 0 auto;
  padding: var(--apb-space-2, 0.5rem) 0;
}

.apb-widget-series-timeline .apb-timeline-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 36px;
  width: 3px;
  background: linear-gradient(180deg, var(--apb-color-primary, #1e3a8a) 0%, var(--apb-color-accent, #e07a5f) 50%, var(--apb-color-border, #cbd5e1) 100%);
  border-radius: var(--apb-radius-full, 9999px);
}

@media (min-width: 860px) {
  .apb-widget-series-timeline .apb-timeline-wrapper::before {
    left: 50%;
    transform: translateX(-50%);
  }
}

/* Timeline Item Entry */
.apb-widget-series-timeline .apb-timeline-item {
  position: relative;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  display: grid;
  grid-template-columns: 1fr;
}

.apb-widget-series-timeline .apb-timeline-item:last-child {
  margin-bottom: 0;
}

/* Timeline Marker Node */
.apb-widget-series-timeline .apb-timeline-node {
  position: absolute;
  left: 36px;
  top: 28px;
  transform: translate(-50%, 0);
  width: 44px;
  height: 44px;
  border-radius: var(--apb-radius-full, 9999px);
  background-color: var(--apb-color-bg-card, #ffffff);
  border: 3px solid var(--apb-color-primary, #1e3a8a);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 5px rgba(13, 92, 99, 0.12), var(--apb-shadow-sm, 0 2px 8px rgba(15, 23, 42, 0.05));
  z-index: 3;
  color: var(--apb-color-primary, #1e3a8a);
  font-family: var(--apb-font-sans, 'Inter', -apple-system, sans-serif);
  font-weight: 800;
  font-size: 0.85rem;
  transition: all var(--apb-transition-smooth, 0.3s ease);
}

.apb-widget-series-timeline .apb-timeline-item.is-novella .apb-timeline-node {
  border-color: var(--apb-color-accent, #e07a5f);
  color: var(--apb-color-accent, #e07a5f);
  box-shadow: 0 0 0 5px rgba(224, 122, 95, 0.15), var(--apb-shadow-sm, 0 2px 8px rgba(15, 23, 42, 0.05));
}

.apb-widget-series-timeline .apb-timeline-item.is-finale .apb-timeline-node {
  border-color: #f59e0b;
  color: #b45309;
  box-shadow: 0 0 0 5px rgba(245, 158, 11, 0.2), var(--apb-shadow-sm, 0 2px 8px rgba(15, 23, 42, 0.05));
}

.apb-widget-series-timeline .apb-timeline-item:hover .apb-timeline-node {
  transform: translate(-50%, 0) scale(1.1);
  box-shadow: 0 0 0 8px rgba(13, 92, 99, 0.2), var(--apb-shadow-md, 0 4px 14px rgba(15, 23, 42, 0.1));
}

/* Timeline Card Body */
.apb-widget-series-timeline .apb-timeline-card {
  margin-left: 74px;
  background-color: var(--apb-color-bg-card, #ffffff);
  border: 1px solid var(--apb-color-border, #e2e8f0);
  border-radius: var(--apb-radius-lg, 16px);
  padding: clamp(1.5rem, 3.5vw, 2.25rem);
  box-shadow: var(--apb-shadow-card, 0 4px 20px rgba(15, 23, 42, 0.08));
  transition: transform var(--apb-transition-smooth, 0.3s ease), box-shadow var(--apb-transition-smooth, 0.3s ease), border-color var(--apb-transition-smooth, 0.3s ease);
  box-sizing: border-box;
}

.apb-widget-series-timeline .apb-timeline-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--apb-shadow-card-hover, 0 8px 30px rgba(15, 23, 42, 0.12));
  border-color: var(--apb-color-primary, #1e3a8a);
}

@media (min-width: 860px) {
  .apb-widget-series-timeline .apb-timeline-item {
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
  }

  .apb-widget-series-timeline .apb-timeline-node {
    left: 50%;
  }

  .apb-widget-series-timeline .apb-timeline-item:nth-child(odd) .apb-timeline-card {
    grid-column: 1 / 2;
    margin-left: 0;
    margin-right: 20px;
    text-align: right;
  }

  .apb-widget-series-timeline .apb-timeline-item:nth-child(odd) .apb-timeline-card .apb-timeline-card-grid {
    direction: rtl;
    text-align: right;
  }

  .apb-widget-series-timeline .apb-timeline-item:nth-child(odd) .apb-timeline-card .apb-timeline-card-content {
    direction: ltr;
    text-align: left;
  }

  .apb-widget-series-timeline .apb-timeline-item:nth-child(even) .apb-timeline-card {
    grid-column: 2 / 3;
    margin-left: 20px;
    margin-right: 0;
  }
}

.apb-widget-series-timeline .apb-timeline-card-grid {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: start;
}

@media (max-width: 540px) {
  .apb-widget-series-timeline .apb-timeline-card-grid {
    grid-template-columns: 1fr;
  }
}

/* Book 3D Cover in Timeline Card */
.apb-widget-series-timeline .apb-timeline-cover-wrap {
  position: relative;
  perspective: 800px;
}

.apb-widget-series-timeline .apb-timeline-cover-img {
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border-radius: var(--apb-radius-sm, 6px);
  box-shadow: -8px 12px 20px rgba(15, 23, 42, 0.2);
  transition: transform var(--apb-transition-smooth, 0.3s ease), box-shadow var(--apb-transition-smooth, 0.3s ease);
  display: block;
}

.apb-widget-series-timeline .apb-timeline-card:hover .apb-timeline-cover-img {
  transform: translateY(-4px) rotate(-1deg);
  box-shadow: -12px 16px 26px rgba(15, 23, 42, 0.28);
}

/* Card Details */
.apb-widget-series-timeline .apb-timeline-card-content {
  display: flex;
  flex-direction: column;
}

.apb-widget-series-timeline .apb-timeline-badge-bar {
  display: flex;
  align-items: center;
  gap: var(--apb-space-2, 0.5rem);
  flex-wrap: wrap;
  margin-bottom: var(--apb-space-2, 0.5rem);
}

.apb-widget-series-timeline .apb-order-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  border-radius: var(--apb-radius-full, 9999px);
  font-family: var(--apb-font-sans, 'Inter', -apple-system, sans-serif);
  font-size: var(--apb-font-size-xs, 0.75rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: var(--apb-color-primary-light, #e0f2fe);
  color: var(--apb-color-primary, #1e3a8a);
  border: 1px solid rgba(13, 92, 99, 0.25);
}

.apb-widget-series-timeline .apb-order-badge.badge-novella {
  background-color: var(--apb-color-accent-light, #fdf2f0);
  color: var(--apb-color-accent, #e07a5f);
  border-color: rgba(224, 122, 95, 0.3);
}

.apb-widget-series-timeline .apb-order-badge.badge-finale {
  background-color: #fef3c7;
  color: #92400e;
  border-color: rgba(245, 158, 11, 0.4);
}

.apb-widget-series-timeline .apb-timeline-book-title {
  font-family: var(--apb-font-serif, 'Playfair Display', Georgia, serif);
  font-size: clamp(1.25rem, 2vw + 0.2rem, 1.65rem);
  margin: 0 0 var(--apb-space-1, 0.25rem) 0;
  color: var(--apb-color-heading, #0f172a);
  line-height: 1.25;
}

.apb-widget-series-timeline .apb-timeline-book-title a {
  color: inherit;
  text-decoration: none;
}

.apb-widget-series-timeline .apb-timeline-book-title a:hover {
  color: var(--apb-color-primary, #1e3a8a);
}

.apb-widget-series-timeline .apb-timeline-meta-row {
  display: flex;
  align-items: center;
  gap: var(--apb-space-3, 0.75rem);
  flex-wrap: wrap;
  font-family: var(--apb-font-sans, 'Inter', -apple-system, sans-serif);
  font-size: var(--apb-font-size-sm, 0.875rem);
  color: var(--apb-color-text-muted, #64748b);
  margin-bottom: var(--apb-space-3, 0.75rem);
}

.apb-widget-series-timeline .apb-timeline-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.apb-widget-series-timeline .apb-timeline-hook {
  font-family: var(--apb-font-sans, 'Inter', -apple-system, sans-serif);
  font-size: var(--apb-font-size-base, 1rem);
  color: var(--apb-color-text, #334155);
  line-height: var(--apb-line-height-base, 1.6);
  margin: 0 0 var(--apb-space-3, 0.75rem) 0;
}

.apb-widget-series-timeline .apb-timeline-order-tip {
  font-family: var(--apb-font-sans, 'Inter', -apple-system, sans-serif);
  font-size: var(--apb-font-size-xs, 0.75rem);
  color: var(--apb-color-primary, #1e3a8a);
  background-color: var(--apb-color-primary-light, #e0f2fe);
  padding: 0.4rem 0.75rem;
  border-radius: var(--apb-radius-sm, 6px);
  border-left: 3px solid var(--apb-color-primary, #1e3a8a);
  margin-bottom: var(--apb-space-4, 1rem);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.apb-widget-series-timeline .apb-timeline-actions {
  display: flex;
  align-items: center;
  gap: var(--apb-space-2, 0.5rem);
  flex-wrap: wrap;
  margin-top: auto;
}

.apb-widget-series-timeline .apb-btn-timeline-buy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background-color: var(--apb-color-primary, #1e3a8a);
  color: #ffffff;
  padding: 0.55rem 1rem;
  border-radius: var(--apb-radius-sm, 6px);
  font-family: var(--apb-font-sans, 'Inter', -apple-system, sans-serif);
  font-size: var(--apb-font-size-xs, 0.75rem);
  font-weight: 700;
  text-decoration: none;
  transition: all var(--apb-transition-smooth, 0.3s ease);
}

.apb-widget-series-timeline .apb-btn-timeline-buy:hover {
  background-color: var(--apb-color-primary-dark, #172554);
  transform: translateY(-1px);
}

.apb-widget-series-timeline .apb-btn-timeline-details {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background-color: var(--apb-color-bg-alt, #f8fafc);
  color: var(--apb-color-text, #334155);
  border: 1px solid var(--apb-color-border, #e2e8f0);
  padding: 0.55rem 1rem;
  border-radius: var(--apb-radius-sm, 6px);
  font-family: var(--apb-font-sans, 'Inter', -apple-system, sans-serif);
  font-size: var(--apb-font-size-xs, 0.75rem);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--apb-transition-fast, 0.15s ease);
}

.apb-widget-series-timeline .apb-btn-timeline-details:hover {
  background-color: var(--apb-color-primary, #1e3a8a);
  color: #ffffff;
  border-color: var(--apb-color-primary, #1e3a8a);
}