:root {
  --color-bg: light-dark(#f8fafc, #0f1419);
  --color-card-bg: light-dark(#ffffff, #1a1d23);
  --color-text: light-dark(#1e293b, #e2e8f0);
  --color-text-secondary: light-dark(#64748b, #94a3b8);
  --color-primary: light-dark(#0052cc, #3b82f6);
  --color-primary-hover: light-dark(#003d99, #2563eb);
  --color-secondary: light-dark(#ff6b00, #f97316);
  --color-secondary-hover: light-dark(#e55a00, #ea580c);
  --color-accent: light-dark(#06b6d4, #0891b2);
  --color-border: light-dark(#e2e8f0, #374151);
  --color-shadow: light-dark(0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 10px 15px -3px rgba(0, 0, 0, 0.3));
  --color-shadow-lg: light-dark(0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 25px 50px -12px rgba(0, 0, 0, 0.4));
  --color-gradient-primary: linear-gradient(135deg, #0052cc 0%, #003d99 100%);
  --color-gradient-secondary: linear-gradient(135deg, #ff6b00 0%, #e55a00 100%);
  --color-gradient-accent: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
  --border-radius: 16px;
  --border-radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dark:root {
  --color-gradient-primary: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
  --color-gradient-secondary:  linear-gradient(135deg, #f97316 0%, #ea580c 100%);
  --color-gradient-accent: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
}

* {
  box-sizing: border-box;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.7;
  margin: 0;
  font-feature-settings: 'liga' 1, 'kern' 1;
}

/* Container */
.container-main-content {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
}

/* Hero Section */
.hero-section {
  background: var(--color-gradient-accent);
  border-radius: var(--border-radius-lg);
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--color-shadow-lg);
  margin-bottom: 3rem;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-section::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.recurring-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  letter-spacing: 0.02em;
  animation: pulse-badge 2s infinite;
}

@keyframes pulse-badge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.recurring-title {
  color: white;
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.recurring-desc {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.2rem;
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto;
}

/* Info Box */
.info-box {
  background: var(--color-card-bg);
  border: 2px solid var(--color-accent);
  border-radius: var(--border-radius);
  padding: 2rem;
  margin-bottom: 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--color-shadow);
}

.info-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-gradient-accent);
}

.info-box-content {
  position: relative;
  z-index: 2;
}

.info-box h2 {
  color: var(--color-accent);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.info-box p {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  margin: 0;
}

/* Stats Section */
.stats-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.stat-card {
  background: var(--color-card-bg);
  padding: 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: var(--color-shadow);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-gradient-accent);
  opacity: 0;
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--color-shadow-lg);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* Section Card */
.section-card {
  background: var(--color-card-bg);
  border-radius: var(--border-radius-lg);
  padding: 3rem 2.5rem;
  margin-bottom: 2.5rem;
  box-shadow: var(--color-shadow);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.section-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-gradient-accent);
  opacity: 0;
  transition: var(--transition);
}

.section-card:hover::before {
  opacity: 1;
}

/* Section Title */
.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 3rem;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.section-title i {
  font-size: 2rem;
}

/* Demonstrations Grid */
.demos-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 3rem;
}

@media (min-width: 1200px) {
  .demos-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 768px) and (max-width: 1199px) {
  .demos-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .demos-grid { grid-template-columns: 1fr; }
}

/* Demo Card Enhancement */
.demo-card {
  background: var(--color-card-bg);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--color-shadow);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.demo-card {
	background: var(--color-card-bg);
	border-radius: 1em;
	box-shadow: var(--color-shadow);
	color: var(--color-text);
	display: flex;
	flex-direction: column;
	gap: 0.7em;
	padding: 1em;
	cursor: pointer;
	transition: transform 0.2s, box-shadow 0.2s;
}

.demo-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-gradient-accent);
  opacity: 0;
  transition: var(--transition);
}

.grid-item {
    border: 1px solid var(--color-border);
}

.grid-item::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 4px;
	background: var(--color-gradient-primary);
	opacity: 0;
	transition: var(--transition);
}

.demo-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--color-shadow-lg);
}

.demo-card:hover::before {
  opacity: 1;
}

.demo-card-title {
	font-size: 1.3em;
	font-weight: 700;
	text-align: center;
	color: var(--color-primary);
	background: var(--color-title-accent);
	border-radius: 0.5em;
	padding: 0.3em 0.6em;
	display: inline-block;
	margin-left: auto;
	margin-right: auto;
}

.demo-card-image {
	width: 100%;
	aspect-ratio: 16/9;
	border-radius: 12px;
	overflow: hidden;
	position: relative;
}

.demo-card-image::after {
	content: '';
	position: absolute;
	inset: 0;
	border-radius: 12px;
	background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
}

.demo-card-image img {
    border-radius: 16px;
    margin-bottom: 1.5rem;
    height: 100%;
    width: 100%;
    object-fit: cover;
}



/* Empty State */
.no-results {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--color-text-secondary);
}

.no-results i {
  font-size: 4rem;
  margin-bottom: 2rem;
  opacity: 0.5;
  color: var(--color-accent);
}

.no-results h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  color: var(--color-text);
  font-weight: 600;
}

.no-results p {
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto 2rem auto;
  line-height: 1.6;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  padding: 1rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition);
}

.button:hover::before {
  left: 100%;
}

.button-primary {
  background: var(--color-gradient-primary);
  color: white;
  box-shadow: var(--color-shadow);
}

.button-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--color-shadow-lg);
  color: white;
}

.button-secondary {
  background: var(--color-gradient-accent);
  color: white;
  box-shadow: var(--color-shadow);
}

.button-secondary:hover {
  transform: translateY(-3px);
  box-shadow: var(--color-shadow-lg);
  color: white;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin: 3rem 0;
  flex-wrap: wrap;
}

.pagination .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 1rem;
  background: var(--color-card-bg);
  color: var(--color-text);
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.pagination .btn:hover:not(.current) {
  background: var(--color-accent);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--color-shadow);
}

.pagination .btn.current {
  background: var(--color-gradient-accent);
  color: white;
  pointer-events: none;
  box-shadow: var(--color-shadow);
}

.pagination .btn.disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: var(--color-gradient-accent);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--color-shadow-lg);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--color-shadow-lg);
}

/* Loading Animation */
@keyframes loading {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Loading Container */
.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  min-height: 300px;
  grid-column: 1 / -1;
}

.spinner {
  width: 60px;
  height: 60px;
  border: 4px solid var(--color-border);
  border-top: 4px solid var(--color-accent);
  border-radius: 50%;
  animation: loading 1s linear infinite;
  margin-bottom: 1.5rem;
}

.loading-container p {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  font-weight: 500;
  margin: 0;
}

.button.loading {
  pointer-events: none;
  position: relative;
  padding-right: 3rem;
}

.button.loading::after {
  content: '';
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: loading 0.8s linear infinite;
}

.button.loading:hover {
  transform: none;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .container-main-content {
    padding: 0 1rem;
    margin: 1rem auto;
  }

  .hero-section {
    padding: 3rem 1.5rem;
  }

  .recurring-title {
    font-size: 2rem;
  }

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

  .section-title {
    font-size: 2rem;
  }

  .info-box {
    padding: 1.5rem;
  }

  .stats-section {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .stats-section {
    grid-template-columns: 1fr;
  }

  .pagination {
    gap: 0.25rem;
  }

  .pagination .btn {
    min-width: 40px;
    height: 40px;
    font-size: 0.9rem;
  }
}

/* Animation Classes */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Focus States for Accessibility */
.button:focus,
.pagination .btn:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}


 .demo-card {
    background: var(--color-card-bg);
    border-radius: 1em;
    box-shadow: var(--color-shadow);
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    gap: 0.7em;
    padding: 1em;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
  }

  .demo-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--color-shadow-hover);
  }


  .demo-card-title {
    font-size: 1.3em;
    font-weight: 700;
    text-align: center;
    color: var(--color-primary);
    background: var(--color-title-accent);
    border-radius: 0.5em;
    padding: 0.3em 0.6em;
    display: inline-block;
    margin-left: auto;
    margin-right: auto;
  }

  .demo-card-details {
    display: flex;
    flex-direction: column;
    gap: 0.5em;
    align-items: center;
  }

  .demo-card-date-time {
    display: flex;
    gap: 1em;
    color: var(--color-text-secondary);
    font-size: 1em;
  }

  .demo-card-date-time i {
    color: var(--color-primary);
  }

  .demo-card-topics ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5em;
    padding: 0;
    margin: 0.2em 0;
    list-style: none;
    justify-content: center;
  }

  .demo-card-tag {
    font-size: 0.95em;
    font-weight: 500;
    padding: 0.2em 0.5em;
    border-radius: 0.4em;
    background: var(--color-title-accent);
    color: var(--color-primary);
    transition: 0.2s;
  }

  .demo-card-tag:hover {
    background: var(--color-primary);
    color: #fff;
  }

  .demo-card-location-row {
    display: flex;
    gap: 1.2em;
    justify-content: center;
    align-items: center;
    font-size: 1em;
  }

  .demo-card-location-row i {
    color: var(--color-primary);
  }

  .demo-card-recommended-badge {
    position: absolute;
    top: 1em;
    right: 1em;
    background: var(--color-primary);
    color: #fff;
    padding: 0.3em 0.6em;
    border-radius: 0.4em;
    font-size: 0.85em;
    display: flex;
    align-items: center;
    gap: 0.3em;
  }

  @media (max-width: 600px) {
    .demo-card-title {
      font-size: 1.05em;
    }

    .demo-card-date-time {
      font-size: 0.95em;
    }

    .demo-card-location-row {
      font-size: 0.95em;
    }
  }

  .demo-card-details {
	display: flex;
	flex-direction: column;
	gap: 0.5em;
	align-items: center;
}

/* Attending Section */
.demo-card-attending {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  margin-top: 0.8em;
  flex-wrap: wrap;
  font-size: 0.95em;
  color: var(--color-text-secondary);
}

/* Friends Attending */
.demo-card-friends {
  display: flex;
  align-items: center;
  gap: 0.4em;
}

.demo-card-friends .friend-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-accent);
  transition: transform 0.2s;
}

.demo-card-friends .friend-avatar:hover {
  transform: scale(1.2);
}

.demo-card-friends .friends-text {
  font-weight: 500;
  color: var(--color-primary);
}

/* No Friends / Invite */
.demo-card-no-friends {
  display: flex;
  align-items: center;
  gap: 0.5em;
  cursor: pointer;
  transition: transform 0.2s, color 0.2s;
}

.demo-card-no-friends .plus-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2em;
  border: 2px solid var(--color-accent);
}

.demo-card-no-friends:hover {
  transform: translateY(-2px);
  color: var(--color-accent);
}

.demo-card-no-friends:hover .plus-avatar {
  background: var(--color-accent);
  color: white;
}

/* Attending Loading */
.attending-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-size: 0.95em;
  color: var(--color-text-secondary);
  padding: 0.5em 0;
  opacity: 0.7;
}

.attending-loading::after {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  display: inline-block;
  animation: loading 0.8s linear infinite;
}

/* Badge container inside each demo card */
.demo-card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

/* Generic badge styling */
.demo-badge {
  display: inline-block;
  padding: 2px 6px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 12px;
  color: #fff;
  background-color: #888; /* fallback neutral */
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Today badge (bright attention color) */
.today-badge {
  background-color: #ff595e; /* soft red */
}

/* Pride badge (rainbow gradient) */
.pride-badge {
  background: linear-gradient(45deg, #e40303, #ff8c00, #ffed00, #008026, #24408e, #732982);
  color: #fff;
  font-weight: 700;
}

/* Optional: smooth fade-in for badges */
.demo-badge {
  opacity: 0;
  transform: translateY(-4px);
  animation: badge-fade-in 0.3s forwards;
}

@keyframes badge-fade-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Load More button loading state */
#load-more-btn.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.8;
}

/* spinner dots */
#load-more-btn.loading::after {
  content: '';
  position: absolute;
  right: 16px; /* adjust spacing from text */
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: #fff; /* spinner color, match button text */
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  from { transform: translateY(-50%) rotate(0deg); }
  to { transform: translateY(-50%) rotate(360deg); }
}

/* Optional: slightly dim the button text while loading */
#load-more-btn.loading span {
  opacity: 0.7;
}

.no-results-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--background); /* soft pale pink background */
  border-radius: 16px;
  padding: 3rem 2rem;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  margin: 2rem auto;
  max-width: 500px;
  transition: transform 0.2s ease;
}

.no-results-card:hover {
  transform: translateY(-5px);
}

.no-results-icon {
  font-size: 5rem;
  color: #ff6b81; /* cute pink/red */
  margin-bottom: 1rem;
  animation: pop 0.6s ease;
}

@keyframes pop {
  0% { transform: scale(0.5); opacity: 0; }
  60% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(1); }
}

.no-results-title {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--error-color);
}

.no-results-text {
  font-size: 1rem;
  color: var(--secondary_text_color);
  margin-bottom: 1.5rem;
}

.no-results-action .button {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.no-results-action .button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}