/* Program Festival: Main Events Timeline Block Styles */
@import "../shared/venue-map-button.css";

.htc-timeline-block {
  width: 100%;
  margin: 2rem 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

.htc-timeline-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header Styles */
.htc-timeline__header {
  text-align: center;
  margin-bottom: 3rem;
}

.htc-timeline__title {
  font-size: 2rem;
  font-weight: 700;
  color: #1e293b;
  margin: 0 0 0.5rem 0;
  line-height: 1.2;
}

.htc-timeline__subtitle {
  font-size: 1.25rem;
  color: #059669;
  margin: 0;
  font-weight: 600;
}

/* CSS Grid Timeline Layout */
.htc-timeline {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem 3rem;
  position: relative;
}

/* Timeline vertical line */
.htc-timeline::before {
  content: '';
  position: absolute;
  left: 6rem;
  top: 2rem;
  bottom: 2rem;
  width: 2px;
  background: linear-gradient(to bottom, #e2e8f0, #cbd5e1, #e2e8f0);
  z-index: 1;
}

.htc-timeline__item {
  display: contents;
}

.htc-timeline__time {
  grid-column: 1;
  text-align: right;
  padding: 1.5rem 1rem 0 0;
  position: relative;
  z-index: 2;
}

.htc-timeline__date {
  display: inline-block;
  font-weight: 600;
  color: #059669;
  background: #ffffff;
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 0.875rem;
  border: 2px solid #d1fae5;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  white-space: nowrap;
}

.htc-timeline__event {
  grid-column: 2;
  position: relative;
  margin-bottom: 2rem;
}

/* Timeline markers */
.htc-timeline__marker {
  position: absolute;
  left: -2.5rem;
  top: 1.75rem;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: #059669;
  border: 3px solid #ffffff;
  box-shadow: 0 0 0 2px #d1fae5;
  z-index: 3;
}

/* Event Cards */
.htc-event-card {
  background: #ffffff;
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  border: 1px solid #e2e8f0;
  /* subtle left accent so alternation is clearly visible */
  border-left: 4px solid var(--htc-accent, #059669);
  transition: all 0.2s ease;
}

.htc-event-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  transform: translateY(-1px);
}

.htc-event__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1e293b;
  margin: 0 0 1rem 0;
  line-height: 1.3;
}

.htc-event__details {
  color: #4b5563;
  line-height: 1.6;
}

.htc-event__location {
  margin: 0 0 0.75rem 0;
  font-size: 0.875rem;
}

.htc-event__location strong {
  color: #374151;
  font-weight: 600;
}

.htc-event__time {
  margin: 0 0 0.75rem 0;
  font-size: 0.875rem;
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
  flex-wrap: wrap;
}

.htc-event__time strong {
  color: #374151;
  font-weight: 600;
}

.htc-event__time time {
  color: inherit;
  font-weight: 500;
}

.htc-event__time-separator {
  color: #9ca3af;
  font-weight: 400;
}

.htc-event__description {
  margin: 0 0 1rem 0;
}

.htc-event__features ul {
  margin: 0;
  padding-left: 1.25rem;
  list-style-type: none;
  position: relative;
}

.htc-event__features li {
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 0.5rem;
}

.htc-event__features li::before {
  content: '•';
  color: #059669;
  font-weight: 600;
  position: absolute;
  left: -0.75rem;
}

.htc-event__link {
  display: inline-flex;
  align-items: center;
  color: #059669;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
}

.htc-event__link:hover {
  color: #047857;
  border-bottom-color: #047857;
}

.htc-event__link::after {
  content: '→';
  margin-left: 0.25rem;
  transition: transform 0.2s ease;
}

.htc-event__link:hover::after {
  transform: translateX(2px);
}

/* Alternating Color Scheme for Timeline Items - 3 color rotation
   Apply variables on actual child wrappers to avoid display: contents inheritance quirks */
.htc-timeline .htc-timeline__item:nth-of-type(3n+1) .htc-timeline__time,
.htc-timeline .htc-timeline__item:nth-of-type(3n+1) .htc-timeline__event,
.htc-timeline > .htc-timeline__item:nth-child(3n+1) .htc-timeline__time,
.htc-timeline > .htc-timeline__item:nth-child(3n+1) .htc-timeline__event {
  --htc-accent: #059669;
  --htc-accent-hover: #047857;
  --htc-accent-ring: #d1fae5;
  --htc-accent-light: #d1fae5;
}

.htc-timeline .htc-timeline__item:nth-of-type(3n+2) .htc-timeline__time,
.htc-timeline .htc-timeline__item:nth-of-type(3n+2) .htc-timeline__event,
.htc-timeline > .htc-timeline__item:nth-child(3n+2) .htc-timeline__time,
.htc-timeline > .htc-timeline__item:nth-child(3n+2) .htc-timeline__event {
  --htc-accent: #3b82f6;
  --htc-accent-hover: #2563eb;
  --htc-accent-ring: #dbeafe;
  --htc-accent-light: #dbeafe;
}

.htc-timeline .htc-timeline__item:nth-of-type(3n) .htc-timeline__time,
.htc-timeline .htc-timeline__item:nth-of-type(3n) .htc-timeline__event,
.htc-timeline > .htc-timeline__item:nth-child(3n) .htc-timeline__time,
.htc-timeline > .htc-timeline__item:nth-child(3n) .htc-timeline__event {
  --htc-accent: #f59e0b;
  --htc-accent-hover: #d97706;
  --htc-accent-ring: #fef3c7;
  --htc-accent-light: #fef3c7;
}

/* Force alternation specifically for the Main Event block to override type-based colors */
.htc-timeline-block[data-htc-block="main-schedule"] .htc-timeline__item:nth-of-type(3n+1) .htc-timeline__time,
.htc-timeline-block[data-htc-block="main-schedule"] .htc-timeline__item:nth-of-type(3n+1) .htc-timeline__event,
.htc-timeline-block[data-htc-block="main-schedule"] > .htc-timeline .htc-timeline__item:nth-child(3n+1) .htc-timeline__time,
.htc-timeline-block[data-htc-block="main-schedule"] > .htc-timeline .htc-timeline__item:nth-child(3n+1) .htc-timeline__event {
  --htc-accent: #059669;
  --htc-accent-hover: #047857;
  --htc-accent-ring: #d1fae5;
  --htc-accent-light: #d1fae5;
}

.htc-timeline-block[data-htc-block="main-schedule"] .htc-timeline__item:nth-of-type(3n+2) .htc-timeline__time,
.htc-timeline-block[data-htc-block="main-schedule"] .htc-timeline__item:nth-of-type(3n+2) .htc-timeline__event,
.htc-timeline-block[data-htc-block="main-schedule"] > .htc-timeline .htc-timeline__item:nth-child(3n+2) .htc-timeline__time,
.htc-timeline-block[data-htc-block="main-schedule"] > .htc-timeline .htc-timeline__item:nth-child(3n+2) .htc-timeline__event {
  --htc-accent: #3b82f6;
  --htc-accent-hover: #2563eb;
  --htc-accent-ring: #dbeafe;
  --htc-accent-light: #dbeafe;
}

.htc-timeline-block[data-htc-block="main-schedule"] .htc-timeline__item:nth-of-type(3n) .htc-timeline__time,
.htc-timeline-block[data-htc-block="main-schedule"] .htc-timeline__item:nth-of-type(3n) .htc-timeline__event,
.htc-timeline-block[data-htc-block="main-schedule"] > .htc-timeline .htc-timeline__item:nth-child(3n) .htc-timeline__time,
.htc-timeline-block[data-htc-block="main-schedule"] > .htc-timeline .htc-timeline__item:nth-child(3n) .htc-timeline__event {
  --htc-accent: #f59e0b;
  --htc-accent-hover: #d97706;
  --htc-accent-ring: #fef3c7;
  --htc-accent-light: #fef3c7;
}

/* Apply accent colors to timeline elements */
.htc-timeline__item .htc-timeline__date {
  color: var(--htc-accent, #059669);
  border-color: var(--htc-accent-light, #d1fae5);
}

.htc-timeline__item .htc-timeline__marker {
  background: var(--htc-accent, #059669);
  box-shadow: 0 0 0 2px var(--htc-accent-ring, #d1fae5);
}

.htc-timeline__item .htc-event__features li::before {
  color: var(--htc-accent, #059669);
}

.htc-timeline__item .htc-event__link {
  color: var(--htc-accent, #059669);
}

.htc-timeline__item .htc-event__link:hover {
  color: var(--htc-accent-hover, #047857);
  border-bottom-color: var(--htc-accent-hover, #047857);
}

/* Event Type Specific Styles with :has() for modern browsers */
.htc-timeline__item:has(.htc-event-card--conference) {
  --htc-accent: #3b82f6;
  --htc-accent-hover: #2563eb;
  --htc-accent-ring: #dbeafe;
  --htc-accent-light: #dbeafe;
}

.htc-timeline__item:has(.htc-event-card--ai4med) {
  --htc-accent: #8b5cf6;
  --htc-accent-hover: #7c3aed;
  --htc-accent-ring: #e9d5ff;
  --htc-accent-light: #e9d5ff;
}

.htc-timeline__item:has(.htc-event-card--expo) {
  --htc-accent: #f59e0b;
  --htc-accent-hover: #d97706;
  --htc-accent-ring: #fef3c7;
  --htc-accent-light: #fef3c7;
}

.htc-timeline__item:has(.htc-event-card--workshops) {
  --htc-accent: #ef4444;
  --htc-accent-hover: #dc2626;
  --htc-accent-ring: #fecaca;
  --htc-accent-light: #fecaca;
}

.htc-timeline__item:has(.htc-event-card--pitch) {
  --htc-accent: #10b981;
  --htc-accent-hover: #059669;
  --htc-accent-ring: #d1fae5;
  --htc-accent-light: #d1fae5;
}

.htc-timeline__item:has(.htc-event-card--brokerage) {
  --htc-accent: #6366f1;
  --htc-accent-hover: #4f46e5;
  --htc-accent-ring: #e0e7ff;
  --htc-accent-light: #e0e7ff;
}

.htc-timeline__item:has(.htc-event-card--mentor) {
  --htc-accent: #ec4899;
  --htc-accent-hover: #db2777;
  --htc-accent-ring: #fce7f3;
  --htc-accent-light: #fce7f3;
}

/* Tablet Responsive Design */
@media (max-width: 1023.98px) {
  .htc-timeline {
    gap: 1.5rem 2rem;
  }
  
  .htc-timeline::before {
    left: 5rem;
  }
  
  .htc-timeline__marker {
    left: -2rem;
  }
}

/* Mobile Responsive Design */
@media (max-width: 575.98px) {
  .htc-timeline-container {
    padding: 0 0.5rem;
  }
  
  .htc-timeline__title {
    font-size: 1.5rem;
  }
  
  .htc-timeline__subtitle {
    font-size: 1.125rem;
  }
  
  .htc-timeline {
    grid-template-columns: 1fr;
    gap: 0;
    padding-left: 2rem;
  }
  
  .htc-timeline::before {
    left: 0.75rem;
    top: 0;
    bottom: 0;
  }
  
  .htc-timeline__time {
    grid-column: 1;
    text-align: left;
    padding: 0 0 0.5rem 0;
    margin-bottom: -0.5rem;
  }
  
  .htc-timeline__event {
    grid-column: 1;
    padding-left: 0;
    margin-bottom: 2.5rem;
  }
  
  .htc-timeline__marker {
    left: 0.25rem;
    top: 0.5rem;
    width: 0.75rem;
    height: 0.75rem;
  }
  
  .htc-timeline__date {
    font-size: 0.813rem;
    padding: 0.375rem 0.75rem;
  }
  
  .htc-event-card {
    padding: 1.25rem;
  }
  
  .htc-event__title {
    font-size: 1.125rem;
  }
}

/* Note: merged <=575.98px refinements into Mobile bucket to keep 3 viewports */