/* ============================================================================
   ITU VIDEO PORTAL - LIGHT THEME (AICAP STYLE)
   ============================================================================
   Clean, professional light theme with ITU blue accents.
   Inspired by AICAP Portal design language.
   ============================================================================ */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ============================================================================
   1. CSS CUSTOM PROPERTIES - LIGHT THEME
   ============================================================================ */
:root {
  /* Light Theme Backgrounds */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;

  /* ITU Corporate Blue */
  --itu-blue: #009CD6;
  --itu-blue-light: #e0f4fc;
  --itu-blue-dark: #0080b3;
  --itu-blue-pale: #f0f9ff;

  /* Text Colors */
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  /* Status Colors - ITU Blue palette */
  --live-color: var(--itu-blue);
  --live-color-dark: #007ab3;
  --live-color-light: #e0f4fc;
  --archive-blue: #64748b;
  --upcoming-amber: #0891b2;
  --upcoming-amber-light: #ecfeff;

  /* Borders */
  --border-light: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-focus: var(--itu-blue);

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

  /* Spacing */
  --container-padding: clamp(1rem, 4vw, 3rem);
  --section-gap: 2rem;
  --card-gap: 1.25rem;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-medium: 0.2s ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* ============================================================================
   2. BASE STYLES
   ============================================================================ */
.webcast-fullscreen-portal {
  min-height: 100vh;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.webcast-fullscreen-portal *,
.webcast-fullscreen-portal *::before,
.webcast-fullscreen-portal *::after {
  box-sizing: border-box;
}

.portal-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================================================
   3. HEADER - CLEAN WHITE
   ============================================================================ */
.portal-header {
  background: var(--bg-primary);
  padding: 0.875rem var(--container-padding);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Logo Section */
.logo-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.logo-mark {
  width: 40px;
  height: 40px;
  background: var(--itu-blue);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 0.875rem;
  color: white;
  letter-spacing: -0.02em;
}

.logo-text {
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text-primary);
}

.logo-text a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.logo-text a:hover {
  color: var(--itu-blue);
}

/* Search Section */
.search-section {
  flex: 1;
  max-width: 400px;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 0.25rem 0.5rem;
  transition: all var(--transition-medium);
}

.search-box:focus-within {
  border-color: var(--itu-blue);
  background: var(--bg-primary);
  box-shadow: 0 0 0 3px var(--itu-blue-light);
}

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 0.5rem 0.625rem;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  color: var(--text-primary);
}

.search-input::placeholder {
  color: var(--text-light);
}

.search-btn {
  background: var(--itu-blue);
  border: none;
  border-radius: 6px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.search-btn:hover {
  background: var(--itu-blue-dark);
}

.search-btn svg {
  width: 16px;
  height: 16px;
  color: white;
}

/* ============================================================================
   4. MAIN CONTENT
   ============================================================================ */
.portal-main {
  flex: 1;
  padding: 1.5rem var(--container-padding) 2rem;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}

/* ============================================================================
   5. SECTIONS
   ============================================================================ */
.content-section {
  margin-bottom: var(--section-gap);
}

.section-header {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 1rem;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  border-radius: 6px;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 0.6875rem;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.section-badge.live {
  background: var(--live-color);
  color: white;
}

.section-badge.live .itu-logo-badge {
  width: 14px;
  height: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.section-badge.live .itu-logo-badge svg {
  width: 14px;
  height: 14px;
  fill: white;
}

.section-badge.archive {
  background: var(--itu-blue);
  color: white;
}

.section-badge.upcoming {
  background: var(--upcoming-amber);
  color: white;
}

.section-title {
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--text-primary);
  margin: 0;
}

.section-count {
  font-weight: 400;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-left: 0.25rem;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.9); }
}

/* ============================================================================
   6. NO LIVE MESSAGE
   ============================================================================ */
.no-live-message {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  text-align: center;
  margin-bottom: 1.25rem;
}

.no-live-icon {
  font-size: 2rem;
  margin-bottom: 0.375rem;
}

.no-live-text {
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin: 0;
}

/* ============================================================================
   7. MEETING GRID (3-COLUMN)
   ============================================================================ */
.meeting-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--card-gap);
}

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

@media (max-width: 640px) {
  .meeting-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================================
   8. MEETING CARDS - CLEAN STYLE
   ============================================================================ */
.meeting-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-medium);
  text-decoration: none;
  display: block;
  box-shadow: var(--shadow-card);
}

.meeting-card:hover {
  transform: translateY(-2px);
  border-color: var(--itu-blue);
  box-shadow: var(--shadow-card-hover);
}

.meeting-card:focus {
  outline: 2px solid var(--itu-blue);
  outline-offset: 2px;
}

/* Card Thumbnail */
.card-thumbnail {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.card-thumbnail-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform var(--transition-medium);
}

.meeting-card:hover .card-thumbnail-bg {
  transform: scale(1.03);
}

/* Gradient Backgrounds - ITU Blue palette */
.card-thumbnail-bg.gradient-live {
  background: linear-gradient(135deg, #00b4d8 0%, var(--itu-blue) 100%);
}

.card-thumbnail-bg.gradient-archive {
  background: linear-gradient(135deg, #94a3b8 0%, #64748b 100%);
}

.card-thumbnail-bg.gradient-upcoming {
  background: linear-gradient(135deg, #22d3ee 0%, #0891b2 100%);
}

/* Status Badge */
.card-status {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 0.625rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  z-index: 2;
}

.card-status.live {
  background: var(--live-color);
  color: white;
}

.card-status.live .itu-logo-mini {
  width: 12px;
  height: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-status.live .itu-logo-mini svg {
  width: 12px;
  height: 12px;
  fill: white;
}

.card-status.archive {
  background: var(--itu-blue);
  color: white;
}

.card-status.upcoming {
  background: var(--upcoming-amber);
  color: white;
}

/* Play Overlay */
.card-play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.2);
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.meeting-card:hover .card-play-overlay {
  opacity: 1;
}

.play-icon-circle {
  width: 52px;
  height: 52px;
  background: var(--itu-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.9);
  transition: transform var(--transition-medium);
  box-shadow: 0 4px 12px rgba(0, 156, 214, 0.4);
}

.meeting-card:hover .play-icon-circle {
  transform: scale(1);
}

.play-icon-circle svg {
  width: 22px;
  height: 22px;
  color: white;
  margin-left: 2px;
}

/* Card Content */
.card-content {
  padding: 0.875rem 1rem 1rem;
}

.card-title {
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-primary);
  margin: 0 0 0.375rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-conference {
  font-family: var(--font-primary);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin: 0 0 0.375rem;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-date {
  font-family: var(--font-primary);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.card-date svg {
  width: 12px;
  height: 12px;
  color: var(--text-light);
}

/* Protected Indicator */
.card-protected {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 26px;
  height: 26px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.card-protected svg {
  width: 14px;
  height: 14px;
  color: var(--text-secondary);
}

/* ============================================================================
   9. EMPTY STATE
   ============================================================================ */
.empty-state {
  text-align: center;
  padding: 2rem;
  background: var(--bg-primary);
  border: 1px dashed var(--border-medium);
  border-radius: 12px;
}

.empty-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.empty-title {
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  margin: 0 0 0.25rem;
}

.empty-text {
  font-family: var(--font-primary);
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

/* ============================================================================
   10. FOOTER
   ============================================================================ */
.portal-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-light);
  padding: 1rem var(--container-padding);
  margin-top: auto;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-brand {
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 1rem;
}

.footer-link {
  font-family: var(--font-primary);
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--itu-blue);
}

.footer-right {
  font-family: var(--font-primary);
  font-size: 0.75rem;
  color: var(--text-light);
}

/* ============================================================================
   11. ANIMATIONS
   ============================================================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.meeting-card {
  animation: fadeInUp 0.35s ease backwards;
}

.meeting-card:nth-child(1) { animation-delay: 0s; }
.meeting-card:nth-child(2) { animation-delay: 0.05s; }
.meeting-card:nth-child(3) { animation-delay: 0.1s; }
.meeting-card:nth-child(4) { animation-delay: 0.15s; }
.meeting-card:nth-child(5) { animation-delay: 0.2s; }
.meeting-card:nth-child(6) { animation-delay: 0.25s; }

/* ============================================================================
   12. RESPONSIVE
   ============================================================================ */
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
  }

  .search-section {
    order: 3;
    max-width: 100%;
    width: 100%;
    margin-top: 0.5rem;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-left {
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .logo-mark {
    width: 36px;
    height: 36px;
    font-size: 0.8125rem;
  }

  .logo-text {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.125rem;
  }

  .card-content {
    padding: 0.75rem;
  }

  .card-title {
    font-size: 0.875rem;
  }
}

/* ============================================================================
   13. OVERRIDES
   ============================================================================ */
.webcast-fullscreen-portal .layout-container,
.webcast-fullscreen-portal .page-content,
.webcast-fullscreen-portal .page-wrapper,
.webcast-fullscreen-portal .region,
.webcast-fullscreen-portal .region-content {
  all: unset;
  display: block;
}

body:has(.webcast-fullscreen-portal) {
  background: var(--bg-secondary);
  margin: 0;
  padding: 0;
}

.webcast-fullscreen-portal .itu-compact-header,
.webcast-fullscreen-portal .compact-header-content,
.webcast-fullscreen-portal .hero-section,
.webcast-fullscreen-portal .netflix-section {
  display: none !important;
}

/* ============================================================================
   14. SKELETON LOADING ANIMATION
   ============================================================================ */
@keyframes skeleton-shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.skeleton-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  overflow: hidden;
}

.skeleton-thumbnail {
  aspect-ratio: 16 / 9;
  background: linear-gradient(90deg, #f0f0f0 25%, #e8e8e8 50%, #f0f0f0 75%);
  background-size: 1000px 100%;
  animation: skeleton-shimmer 2s infinite linear;
}

.skeleton-content {
  padding: 0.875rem 1rem 1rem;
}

.skeleton-title {
  height: 1.25rem;
  width: 85%;
  background: linear-gradient(90deg, #f0f0f0 25%, #e8e8e8 50%, #f0f0f0 75%);
  background-size: 1000px 100%;
  animation: skeleton-shimmer 2s infinite linear;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.skeleton-text {
  height: 0.875rem;
  width: 60%;
  background: linear-gradient(90deg, #f0f0f0 25%, #e8e8e8 50%, #f0f0f0 75%);
  background-size: 1000px 100%;
  animation: skeleton-shimmer 2s infinite linear;
  border-radius: 4px;
  margin-bottom: 0.375rem;
}

.skeleton-text-sm {
  height: 0.75rem;
  width: 40%;
  background: linear-gradient(90deg, #f0f0f0 25%, #e8e8e8 50%, #f0f0f0 75%);
  background-size: 1000px 100%;
  animation: skeleton-shimmer 2s infinite linear;
  border-radius: 4px;
}

/* ============================================================================
   15. "NEW" BADGE FOR RECENT ARCHIVES
   ============================================================================ */
.card-badge-new {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 0.625rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  z-index: 2;
  box-shadow: 0 2px 4px rgba(16, 185, 129, 0.3);
}

/* Move protected icon when NEW badge is present */
.card-thumbnail:has(.card-badge-new) .card-protected {
  top: 2.5rem;
}

/* ============================================================================
   16. ENHANCED FOCUS INDICATORS (Accessibility)
   ============================================================================ */
.meeting-card:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--itu-blue), var(--shadow-card-hover);
}

.meeting-card:focus-visible {
  outline: 3px solid var(--itu-blue);
  outline-offset: 2px;
}

.search-input:focus {
  outline: none;
}

.search-btn:focus-visible {
  outline: 2px solid white;
  outline-offset: 2px;
}

/* Skip to content link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--itu-blue);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 8px 8px;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  z-index: 1000;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

/* ============================================================================
   17. ENHANCED EMPTY STATES
   ============================================================================ */
.no-live-message {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 2rem 2rem 1.75rem;
  text-align: center;
  margin-bottom: 1.25rem;
}

.no-live-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  opacity: 0.9;
}

.no-live-title {
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text-primary);
  margin: 0 0 0.5rem;
}

.no-live-text {
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin: 0 0 1rem;
  line-height: 1.5;
}

.no-live-hint {
  font-family: var(--font-primary);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0 0 1.25rem;
}

.no-live-actions {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.no-live-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.625rem 1.25rem;
  border-radius: 8px;
  font-family: var(--font-primary);
  font-weight: 500;
  font-size: 0.875rem;
  text-decoration: none;
  transition: all var(--transition-medium);
}

.no-live-btn-primary {
  background: var(--itu-blue);
  color: white;
  border: none;
}

.no-live-btn-primary:hover {
  background: var(--itu-blue-dark);
  transform: translateY(-1px);
}

.no-live-btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}

.no-live-btn-secondary:hover {
  border-color: var(--itu-blue);
  color: var(--itu-blue);
}

/* ============================================================================
   18. RELATIVE DATE STYLING
   ============================================================================ */
.card-date-relative {
  color: var(--itu-blue);
  font-weight: 500;
}

/* ============================================================================
   19. PREFERS REDUCED MOTION
   ============================================================================ */
@media (prefers-reduced-motion: reduce) {
  .meeting-card,
  .skeleton-thumbnail,
  .skeleton-title,
  .skeleton-text,
  .skeleton-text-sm {
    animation: none;
  }

  .meeting-card:hover {
    transform: none;
  }

  .meeting-card:hover .card-thumbnail-bg {
    transform: none;
  }
}