/* ========================================
   VITALIST BAY 2026 SCHEDULE
   Eudemonia-style Conference Agenda
   ======================================== */

/* CSS Custom Properties */
:root {
  /* Colors - Eudemonia style */
  --vb-bg: #ffffff;
  --vb-bg-page: #f7f8f9;
  --vb-text: #1a1a1a;
  --vb-text-muted: #6b7280;
  --vb-text-light: #9ca3af;
  --vb-border: #e5e7eb;
  --vb-border-light: #f3f4f6;

  /* Primary accent - Main/Summit blue */
  --vb-primary: #1437D0;
  --vb-primary-hover: #0f2ba8;

  /* Track Colors */
  --track-main: #1437D0;
  --track-investors: #FCD18B;
  --track-replacement: #FEC901;
  --track-science: #FF913C;
  --track-ai-bio: #969BFD;
  --track-biostasis: #8CEBF4;

  /* Typography */
  --vb-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --vb-spacing-xs: 4px;
  --vb-spacing-sm: 8px;
  --vb-spacing-md: 16px;
  --vb-spacing-lg: 24px;
  --vb-spacing-xl: 32px;

  /* Borders */
  --vb-radius-sm: 4px;
  --vb-radius-md: 8px;
  --vb-radius-lg: 12px;
  --vb-radius-full: 9999px;

  /* Transitions */
  --vb-transition: 0.15s ease;
}

/* ========================================
   Base Container
   ======================================== */

.vb-schedule {
  font-family: var(--vb-font);
  max-width: 100%;
  margin: 0 auto;
  padding: 0 8px;
  color: var(--vb-text);
  background-color: var(--vb-bg-page);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  max-height: 85vh;
  overflow-y: auto;
}

/* ========================================
   Header Section (All Sessions, Filters)
   ======================================== */

.vb-schedule__header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--vb-spacing-lg) 0;
  border-bottom: 1px solid var(--vb-border);
  margin-bottom: var(--vb-spacing-md);
}

.vb-schedule__session-count {
  display: flex;
  align-items: baseline;
  gap: var(--vb-spacing-sm);
}

.vb-schedule__session-count-label {
  font-size: 18px;
  font-weight: 600;
  color: var(--vb-text);
}

.vb-schedule__session-count-number {
  font-size: 14px;
  color: var(--vb-text-muted);
}

.vb-schedule__header-right {
  display: flex;
  align-items: center;
  gap: var(--vb-spacing-md);
}

/* Date Dropdown */
.vb-schedule__date-dropdown {
  display: flex;
  align-items: center;
  gap: var(--vb-spacing-sm);
  padding: var(--vb-spacing-sm) var(--vb-spacing-md);
  border: 1px solid var(--vb-border);
  border-radius: var(--vb-radius-md);
  background: var(--vb-bg);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--vb-text);
  transition: var(--vb-transition);
}

.vb-schedule__date-dropdown:hover {
  border-color: var(--vb-text-muted);
}

.vb-schedule__date-dropdown svg {
  width: 16px;
  height: 16px;
  color: var(--vb-text-muted);
}

/* View Toggle Icons */
.vb-schedule__view-icons {
  display: flex;
  border: 1px solid var(--vb-border);
  border-radius: var(--vb-radius-md);
  overflow: hidden;
}

.vb-schedule__view-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--vb-bg);
  border: none;
  cursor: pointer;
  color: var(--vb-text-muted);
  transition: var(--vb-transition);
}

.vb-schedule__view-icon:not(:last-child) {
  border-right: 1px solid var(--vb-border);
}

.vb-schedule__view-icon:hover {
  background: var(--vb-bg-page);
  color: var(--vb-text);
}

.vb-schedule__view-icon--active {
  background: var(--vb-bg-page);
  color: var(--vb-text);
}

.vb-schedule__view-icon svg {
  width: 18px;
  height: 18px;
}

/* ========================================
   Filter Tabs (Sessions/Speakers)
   ======================================== */

.vb-schedule__filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--vb-spacing-md) 0;
  margin-bottom: var(--vb-spacing-lg);
}

.vb-schedule__tabs {
  display: flex;
  gap: var(--vb-spacing-sm);
}

.vb-schedule__tab {
  display: flex;
  align-items: center;
  gap: var(--vb-spacing-sm);
  padding: var(--vb-spacing-sm) var(--vb-spacing-md);
  border: 1px solid var(--vb-border);
  border-radius: var(--vb-radius-full);
  background: var(--vb-bg);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--vb-text-muted);
  transition: var(--vb-transition);
}

.vb-schedule__tab:hover {
  border-color: var(--vb-text-muted);
  color: var(--vb-text);
}

.vb-schedule__tab--active {
  background: var(--vb-primary);
  border-color: var(--vb-primary);
  color: #fff;
}

.vb-schedule__tab--active:hover {
  background: var(--vb-primary-hover);
  border-color: var(--vb-primary-hover);
  color: #fff;
}

.vb-schedule__tab svg {
  width: 16px;
  height: 16px;
}

/* Filter Controls */
.vb-schedule__filter-controls {
  display: flex;
  align-items: center;
  gap: var(--vb-spacing-md);
}

.vb-schedule__topics-btn {
  display: flex;
  align-items: center;
  gap: var(--vb-spacing-sm);
  padding: var(--vb-spacing-sm) var(--vb-spacing-md);
  border: 1px solid var(--vb-border);
  border-radius: var(--vb-radius-md);
  background: var(--vb-bg);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--vb-text-muted);
  transition: var(--vb-transition);
}

.vb-schedule__topics-btn:hover {
  border-color: var(--vb-text-muted);
  color: var(--vb-text);
}

.vb-schedule__topics-btn svg {
  width: 16px;
  height: 16px;
}

/* ========================================
   Time Slot Layout
   ======================================== */

.vb-schedule__grid {
  display: flex;
  flex-direction: column;
}

.vb-schedule__time-slot {
  display: grid;
  grid-template-columns: 100px 1fr;
  border-bottom: 1px solid var(--vb-border-light);
  padding: var(--vb-spacing-lg) 0;
}

.vb-schedule__time-slot:last-child {
  border-bottom: none;
}

/* Time Sidebar */
.vb-schedule__time-sidebar {
  position: sticky;
  top: 0;
  left: 0;
  align-self: start;
  padding-right: var(--vb-spacing-lg);
  text-align: left;
  background: var(--vb-bg-page);
  z-index: 5;
}

.vb-schedule__time-sidebar::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 1px;
  background: var(--vb-border);
}

.vb-schedule__day-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--vb-text-muted);
}

.vb-schedule__day-date {
  font-size: 15px;
  font-weight: 600;
  color: var(--vb-text);
  margin-bottom: var(--vb-spacing-sm);
}

.vb-schedule__time-display {
  font-size: 14px;
  font-weight: 600;
  color: var(--vb-primary);
}

.vb-schedule__timezone {
  font-size: 11px;
  color: var(--vb-text-light);
}

/* Sessions Container */
.vb-schedule__sessions-wrapper {
  position: relative;
  padding-left: var(--vb-spacing-lg);
  overflow: visible;
}

.vb-schedule__sessions {
  display: flex;
  gap: var(--vb-spacing-md);
  overflow: hidden;
  padding-bottom: var(--vb-spacing-xs);
}

/* Single session - full width */
.vb-schedule__sessions--single {
  display: block;
}

.vb-schedule__sessions--single .vb-session {
  max-width: none;
}

/* ========================================
   Session Card - Eudemonia Style
   ======================================== */

.vb-session {
  flex: 0 0 auto;
  width: 420px;
  max-width: 420px;
  background: var(--vb-bg);
  border: 1px solid var(--vb-border);
  border-radius: var(--vb-radius-lg);
  padding: var(--vb-spacing-lg);
  scroll-snap-align: start;
  transition: var(--vb-transition);
  display: flex;
  flex-direction: column;
}

/* Hover removed - cards are not clickable */

/* Session Title */
.vb-session__title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--vb-text);
  margin: 0 0 var(--vb-spacing-sm);
}

/* Session Time & Location Row */
.vb-session__time-location {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--vb-spacing-md);
  margin-bottom: var(--vb-spacing-md);
  font-size: 13px;
  color: var(--vb-text-muted);
}

.vb-session__time-item,
.vb-session__location-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.vb-session__time-item svg,
.vb-session__location-item svg {
  width: 14px;
  height: 14px;
  color: var(--vb-text-light);
  flex-shrink: 0;
}

/* Session Tags/Badges Row */
.vb-session__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--vb-spacing-sm);
  margin-bottom: var(--vb-spacing-md);
}

.vb-session__tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

/* Type badge - gray background */
.vb-session__tag--type {
  background: #f3f4f6;
  color: var(--vb-text-muted);
}

/* Duration badge - gray background */
.vb-session__tag--duration {
  background: #f3f4f6;
  color: var(--vb-text-muted);
}

/* Track badge - solid colored background, dark text */
.vb-session__tag--track {
  background: var(--tag-track-color, #f3f4f6);
  color: var(--vb-text);
}

/* Main Track badge - white text on blue */
.vb-session__tag--track-main {
  background: var(--vb-primary);
  color: #fff;
}

/* More tracks badge */
.vb-session__tag--more {
  background: #f3f4f6;
  color: var(--vb-text-muted);
}

/* Session Description */
.vb-session__description {
  font-size: 14px;
  line-height: 1.6;
  color: var(--vb-text-muted);
  margin: 0 0 var(--vb-spacing-md);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.vb-session__read-more {
  color: var(--vb-text);
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  margin-bottom: var(--vb-spacing-md);
}

.vb-session__read-more:hover {
  text-decoration: underline;
}

/* ========================================
   Speaker Section
   ======================================== */

.vb-session__speakers {
  display: flex;
  flex-direction: column;
  gap: var(--vb-spacing-sm);
  margin-bottom: var(--vb-spacing-md);
}

.vb-session__speaker {
  display: flex;
  align-items: center;
  gap: var(--vb-spacing-md);
}

.vb-session__speaker-photo {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--vb-bg-page);
}

.vb-session__speaker-info {
  flex: 1;
  min-width: 0;
}

.vb-session__speaker-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--vb-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.vb-session__speaker-title {
  font-size: 13px;
  color: var(--vb-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Multiple speakers - horizontal layout */
.vb-session__speakers--multiple {
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--vb-spacing-md);
}

.vb-session__speakers--multiple .vb-session__speaker {
  flex: 0 0 auto;
}

.vb-session__speakers--multiple .vb-session__speaker-info {
  max-width: 150px;
}

/* ========================================
   Navigation Arrow
   ======================================== */

.vb-schedule__nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--vb-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: var(--vb-transition);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.vb-schedule__nav-arrow:hover {
  background: var(--vb-primary-hover);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.vb-schedule__nav-arrow--next {
  right: -20px;
}

.vb-schedule__nav-arrow--prev {
  left: -20px;
}

.vb-schedule__nav-arrow--hidden {
  display: none;
}

.vb-schedule__nav-arrow svg {
  width: 20px;
  height: 20px;
}

/* ========================================
   Empty State
   ======================================== */

.vb-schedule__empty {
  text-align: center;
  padding: var(--vb-spacing-xl) var(--vb-spacing-lg);
  color: var(--vb-text-muted);
}

.vb-schedule__empty-icon {
  font-size: 48px;
  margin-bottom: var(--vb-spacing-md);
  opacity: 0.5;
}

.vb-schedule__empty p {
  margin: 0 0 var(--vb-spacing-sm);
  font-size: 14px;
}

/* ========================================
   Loading State
   ======================================== */

.vb-schedule__loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--vb-spacing-xl);
  color: var(--vb-text-muted);
}

.vb-schedule__spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--vb-border);
  border-top-color: var(--vb-primary);
  border-radius: 50%;
  animation: vb-spin 0.8s linear infinite;
  margin-bottom: var(--vb-spacing-md);
}

@keyframes vb-spin {
  to { transform: rotate(360deg); }
}

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

@media (max-width: 900px) {
  .vb-schedule {
    padding: 0 var(--vb-spacing-md);
  }

  .vb-session {
    width: 340px;
    max-width: 340px;
  }

  .vb-schedule__header-bar {
    flex-wrap: wrap;
    gap: var(--vb-spacing-md);
  }

  .vb-schedule__filter-bar {
    flex-wrap: wrap;
    gap: var(--vb-spacing-md);
  }

  .vb-schedule__filter-controls {
    flex-wrap: wrap;
  }
}

@media (max-width: 700px) {
  .vb-schedule {
    max-height: 70vh;
  }

  .vb-schedule__time-slot {
    grid-template-columns: 1fr;
    gap: var(--vb-spacing-sm);
  }

  .vb-schedule__time-sidebar {
    position: static;
    display: flex;
    align-items: baseline;
    gap: var(--vb-spacing-md);
    padding-right: 0;
    padding-bottom: var(--vb-spacing-sm);
    border-bottom: 1px solid var(--vb-border-light);
  }

  .vb-schedule__time-sidebar::after {
    display: none;
  }

  .vb-schedule__day-date {
    margin-bottom: 0;
  }

  .vb-schedule__sessions-wrapper {
    padding-left: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .vb-schedule__sessions {
    flex-direction: row;
    overflow: visible;
  }

  .vb-session {
    width: 280px;
    min-width: 280px;
    max-width: 280px;
  }

  .vb-schedule__sessions--single .vb-session {
    width: 100%;
    min-width: 0;
    max-width: none;
  }

  .vb-schedule__nav-arrow {
    display: none;
  }

  .vb-schedule__header-right {
    width: 100%;
    justify-content: space-between;
  }

  .vb-schedule__tabs {
    flex-wrap: wrap;
  }

  .vb-schedule__filter-controls {
    width: 100%;
    justify-content: space-between;
  }

}

@media (max-width: 480px) {
  .vb-schedule__header-bar {
    padding: var(--vb-spacing-md) 0;
  }

  .vb-schedule__session-count-label {
    font-size: 16px;
  }

  .vb-session {
    padding: var(--vb-spacing-md);
  }

  .vb-session__title {
    font-size: 15px;
  }

  .vb-session__tags {
    gap: 6px;
  }

  .vb-session__tag {
    padding: 3px 8px;
    font-size: 11px;
  }
}

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

@media print {
  .vb-schedule {
    max-width: none;
  }

  .vb-schedule__header-bar,
  .vb-schedule__filter-bar,
  .vb-schedule__nav-arrow {
    display: none !important;
  }

  .vb-session {
    break-inside: avoid;
    page-break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }

  .vb-schedule__sessions {
    flex-wrap: wrap;
  }
}

/* ========================================
   Accessibility
   ======================================== */

.vb-schedule *:focus-visible {
  outline: 2px solid var(--vb-primary);
  outline-offset: 2px;
}

.vb-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  .vb-schedule *,
  .vb-schedule *::before,
  .vb-schedule *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}