/* ============================================
   InnovAbility Network - Enhanced Stylesheet
   Modern, accessible design for innovation conference
   ============================================ */

:root {
  /* Primary Colors - Innovation Purple Palette */
  --primary: #5b2d90;
  --primary-dark: #4a2370;
  --primary-light: #7a50b8;
  --accent: #8b5cf6;
  --accent-bright: #a78bfa;

  /* Gradient Backgrounds */
  --gradient-hero: linear-gradient(135deg, #5b2d90 0%, #7a50b8 50%, #4338ca 100%);
  --gradient-section: linear-gradient(180deg, #f9fafb 0%, #ffffff 100%);
  --gradient-card: linear-gradient(135deg, #ffffff 0%, #faf5ff 100%);

  /* Neutrals */
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Semantic Colors */
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  --border-light: #e5e7eb;
  --border-medium: #d1d5db;

  /* Layout */
  --max-width: 1280px;
  --content-width: 960px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;

  /* Typography */
  --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 400ms ease-in-out;
}

/* High Contrast Mode */
body.high-contrast {
  --primary: #4a2370;
  --text-primary: #000000;
  --text-secondary: #1f2937;
  --border-light: #111827;
  --gray-100: #e5e7eb;
}

body.large-text {
  --font-size-base: 18px;
}

/* ============================================
   Accessibility - Skip Link
   ============================================ */

.skip-link {
  position: absolute !important;
  top: -999px !important;
  left: -999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
  padding: 0 !important;
  margin: -1px !important;
  visibility: hidden !important;
}

.skip-link:focus {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: auto !important;
  height: auto !important;
  overflow: visible !important;
  clip: auto !important;
  clip-path: none !important;
  white-space: normal !important;
  visibility: visible !important;
  background: var(--primary) !important;
  color: var(--white) !important;
  padding: 8px 16px !important;
  text-decoration: none !important;
  font-weight: 600 !important;
  z-index: 10000 !important;
  border-radius: 0 0 4px 0 !important;
  outline: 3px solid var(--accent-bright) !important;
  outline-offset: 2px !important;
  margin: 0 !important;
  border: none !important;
}

/* ============================================
   Base Styles
   ============================================ */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  line-height: var(--line-height-base);
  color: var(--text-primary);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.accessibility-controls {
  position: fixed;
  top: 120px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: var(--white);
  padding: 0.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}

.accessibility-controls button {
  width: 44px;
  height: 44px;
  border: 2px solid var(--primary);
  background: var(--white);
  color: var(--primary);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-base);
}

.accessibility-controls button:hover,
.accessibility-controls button:focus {
  background: var(--primary);
  color: var(--white);
  transform: scale(1.05);
  outline: none;
}

.accessibility-controls button:focus {
  outline: 3px solid var(--accent-bright);
  outline-offset: 2px;
}

/* ============================================
   Top Bar
   ============================================ */

.topbar {
  background: var(--primary);
  color: var(--white);
  padding: 0.6rem 0;
  font-size: 0.95rem;
  font-weight: 500;
}

.topbar .wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ============================================
   Header / Navigation
   ============================================ */

.site-header {
  background: var(--white);
  border-bottom: 2px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 999;
  box-shadow: var(--shadow-sm);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}

.brand .logo {
  height: 110px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-base);
}

.brand .logo:hover {
  transform: scale(1.02);
}

.nav-primary ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-primary a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  position: relative;
}

.nav-primary a:hover,
.nav-primary a:focus {
  color: var(--primary);
  background: var(--gray-50);
}

.nav-primary a[aria-current="page"] {
  color: var(--primary);
  font-weight: 700;
}

.nav-primary a[aria-current="page"]::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0.75rem;
  right: 0.75rem;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

/* ============================================
   Dynamic Hero Section
   ============================================ */

.hero-dynamic {
  position: relative;
  background: var(--gradient-hero);
  color: var(--white);
  padding: var(--spacing-xl) 0;
  overflow: hidden;
  min-height: 600px;
  display: flex;
  align-items: center;
}

.hero-background-animation {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(139, 92, 246, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(67, 56, 202, 0.3) 0%, transparent 50%);
  animation: gradientShift 15s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: var(--content-width);
  text-align: center;
}

.hero-title-main {
  font-size: 3.5rem;
  font-weight: 800;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
  font-size: 1.6rem;
  font-weight: 600;
  margin: 0 0 1.5rem;
  opacity: 0.95;
  animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero-description {
  font-size: 1.15rem;
  line-height: 1.7;
  margin: 0 auto 1.25rem;
  max-width: 800px;
  opacity: 0.9;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-mission {
  font-size: 1.2rem;
  margin: 0 0 2rem;
  opacity: 0.95;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
  min-width: 160px;
}

.btn-primary {
  background: var(--white);
  color: var(--primary);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover,
.btn-primary:focus {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: var(--gray-50);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

.btn-outline:hover,
.btn-outline:focus {
  background: var(--white);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-large {
  padding: 1.125rem 2.25rem;
  font-size: 1.15rem;
}

.btn:focus {
  outline: 3px solid var(--accent-bright);
  outline-offset: 3px;
}

/* ============================================
   Three-Pillar Feature Bar
   ============================================ */

.pillars-section {
  padding: var(--spacing-xl) 0;
  background: var(--gradient-section);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.pillar-card {
  background: var(--white);
  padding: 2rem 1.5rem;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-light);
  text-align: center;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-hero);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.pillar-card:hover::before,
.pillar-card:focus-within::before {
  transform: scaleX(1);
}

.pillar-card:hover,
.pillar-card:focus-within {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.pillar-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.pillar-card h3 {
  font-size: 1.5rem;
  color: var(--primary);
  margin: 0 0 0.75rem;
  font-weight: 700;
}

.pillar-card > p {
  color: var(--text-secondary);
  font-weight: 500;
  margin: 0;
}

.pillar-details {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: all var(--transition-slow);
}

.pillar-card:hover .pillar-details,
.pillar-card:focus-within .pillar-details {
  max-height: 200px;
  opacity: 1;
}

.pillar-details p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ============================================
   Conference Highlight Block
   ============================================ */

.conference-highlight {
  padding: var(--spacing-xl) 0;
  background: var(--white);
}

.conference-card {
  background: var(--gradient-card);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.conference-badge {
  display: inline-block;
  background: var(--gradient-hero);
  color: var(--white);
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.conference-card h2 {
  font-size: 2.5rem;
  color: var(--primary-dark);
  margin: 0 0 0.75rem;
  font-weight: 800;
}

.conference-date {
  font-size: 1.25rem;
  color: var(--primary);
  font-weight: 600;
  margin: 0 0 1.5rem;
}

.conference-intro {
  font-size: 1.15rem;
  color: var(--text-primary);
  margin: 0 0 2rem;
  font-weight: 500;
}

.conference-tracks-preview {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.track-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  background: var(--white);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--primary);
  transition: all var(--transition-base);
}

.track-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
}

.track-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--gradient-hero);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
}

.track-info h4 {
  font-size: 1.15rem;
  color: var(--primary-dark);
  margin: 0 0 0.35rem;
  font-weight: 700;
}

.track-info p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 0.95rem;
}

.conference-footer {
  text-align: center;
  padding-top: 2rem;
  border-top: 2px dashed var(--border-medium);
  margin-top: 2rem;
}

.conference-footer p {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin: 0 0 1.5rem;
}

/* ============================================
   Who We Serve - Interactive Grid
   ============================================ */

.who-we-serve {
  padding: var(--spacing-xl) 0;
  background: var(--gray-50);
}

.section-title {
  font-size: 2.5rem;
  color: var(--primary-dark);
  text-align: center;
  margin: 0 0 1rem;
  font-weight: 800;
}

.section-subtitle {
  text-align: center;
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin: 0 auto 3rem;
  max-width: 700px;
}

.stakeholder-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.stakeholder-card {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-light);
  text-align: center;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.stakeholder-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-hero);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.stakeholder-card:hover::after,
.stakeholder-card:focus::after {
  transform: scaleX(1);
}

.stakeholder-card:hover,
.stakeholder-card:focus {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
  outline: none;
}

.stakeholder-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  transition: transform var(--transition-base);
}

.stakeholder-card:hover .stakeholder-icon,
.stakeholder-card:focus .stakeholder-icon {
  transform: scale(1.1);
}

.stakeholder-card h3 {
  font-size: 1.3rem;
  color: var(--primary-dark);
  margin: 0 0 1rem;
  font-weight: 700;
}

.stakeholder-hover {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: all var(--transition-slow);
}

.stakeholder-card:hover .stakeholder-hover,
.stakeholder-card:focus .stakeholder-hover {
  max-height: 150px;
  opacity: 1;
}

.stakeholder-hover p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}

/* ============================================
   Scrolling Insight Strip
   ============================================ */

.insights-strip {
  background: var(--primary-dark);
  color: var(--white);
  padding: 1.5rem 0;
  overflow: hidden;
  position: relative;
}

.insights-container {
  display: flex;
  gap: 4rem;
  animation: scrollInsights 40s linear infinite;
  white-space: nowrap;
}

.insight-item {
  font-size: 1.15rem;
  font-weight: 600;
  font-style: italic;
  opacity: 0.95;
  flex-shrink: 0;
}

@keyframes scrollInsights {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.insights-strip:hover .insights-container {
  animation-play-state: paused;
}

/* ============================================
   Why Section with Timeline
   ============================================ */

.why-section {
  padding: var(--spacing-xl) 0;
  background: var(--white);
}

.why-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-top: 2rem;
}

.why-text .lead {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.7;
}

.why-text p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.7;
}

.timeline-visual {
  background: var(--gradient-card);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-light);
}

.timeline-item {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  margin-bottom: 2rem;
  position: relative;
}

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

.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 18px;
  top: 40px;
  bottom: -24px;
  width: 2px;
  background: var(--border-medium);
}

.timeline-marker {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 3px solid var(--primary);
  background: var(--white);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.timeline-marker.current {
  background: var(--gradient-hero);
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 6px rgba(91, 45, 144, 0.1);
}

.timeline-content h4 {
  font-size: 1.4rem;
  color: var(--primary);
  margin: 0 0 0.25rem;
  font-weight: 700;
}

.timeline-content p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
}

/* ============================================
   Host Section
   ============================================ */

.host-section {
  padding: var(--spacing-xl) 0;
  background: var(--gradient-section);
}

.host-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-top: 2rem;
}

.host-info h3 {
  font-size: 2rem;
  color: var(--primary-dark);
  margin: 0 0 0.5rem;
  font-weight: 800;
}

.host-department {
  font-size: 1.25rem;
  color: var(--primary);
  font-weight: 600;
  margin: 0 0 0.25rem;
}

.host-lab {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin: 0 0 1.5rem;
}

.host-info p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin: 0 0 1rem;
  line-height: 1.7;
}

.risei-focus {
  list-style: none;
  margin: 1rem 0 1.5rem;
  padding: 0;
}

.risei-focus li {
  padding-left: 1.75rem;
  margin-bottom: 0.5rem;
  position: relative;
  color: var(--text-secondary);
  line-height: 1.6;
}

.risei-focus li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

.risei-logo {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

/* ============================================
   Committee Carousel
   ============================================ */

.committee-carousel {
  position: relative;
  min-height: 300px;
}

.carousel-container {
  position: relative;
  overflow: hidden;
}

.carousel-slide {
  display: none;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

.carousel-slide.active {
  display: block;
  opacity: 1;
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: 2rem 0;
  border-top: 4px solid var(--primary);
}

.footer-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.footer-inner small {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ============================================
   Utility Classes
   ============================================ */

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }

/* Focus styles for accessibility */
a:focus,
button:focus,
[tabindex]:focus {
  outline: 3px solid var(--accent-bright);
  outline-offset: 3px;
}

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

@media (max-width: 1024px) {
  .pillars-grid,
  .stakeholder-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-content,
  .host-content {
    grid-template-columns: 1fr;
  }

  .hero-title-main {
    font-size: 2.75rem;
  }
}

@media (max-width: 768px) {
  .accessibility-controls {
    top: 80px;
    right: 10px;
  }

  .brand .logo {
    height: 90px;
  }

  .nav-primary ul {
    gap: 1rem;
  }

  .hero-dynamic {
    min-height: auto;
    padding: 3rem 0;
  }

  .hero-title-main {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
  }

  .hero-description,
  .hero-mission {
    font-size: 1rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .pillars-grid,
  .stakeholder-grid {
    grid-template-columns: 1fr;
  }

  .conference-card {
    padding: 2rem 1.5rem;
  }

  .conference-card h2 {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .track-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .insight-item {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .wrapper {
    padding: 0 1rem;
  }

  .hero-title-main {
    font-size: 1.75rem;
  }

  .conference-card {
    padding: 1.5rem 1rem;
  }

  .pillar-card,
  .stakeholder-card {
    padding: 1.5rem;
  }
}

/* ============================================
   Featured Sessions - Vertical Column Layout
   ============================================ */

.tracks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
  align-items: start;
}

.track-column {
  display: flex;
  flex-direction: column;
}

.sessions-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.session-card {
  padding: 1.5rem;
  background: var(--white);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.session-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
  transform: translateY(-2px);
}

/* Responsive grid for track columns */
@media (max-width: 1200px) {
  /* Stack to 2 columns on medium screens */
  .tracks-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .track-column:nth-child(3) {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  /* Stack to single column on mobile */
  .tracks-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .session-card {
    padding: 1.25rem;
  }
}

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

@media print {
  .accessibility-controls,
  .topbar,
  .site-header,
  .hero-cta,
  .btn,
  .site-footer {
    display: none;
  }

  body {
    font-size: 12pt;
    color: #000;
  }

  .hero-dynamic {
    background: #fff;
    color: #000;
  }
}