/* ================= DEMO PAGE - MODERN DESIGN ================= */
:root {
  --primary: #4361ee;
  --primary-dark: #3a56d4;
  --secondary: #7209b7;
  --accent: #f72585;
  --success: #4cc9f0;
  --warning: #ffd166;
  --danger: #ef476f;
  --dark: #121826;
  --light: #f8f9fa;
  --gray-100: #e9ecef;
  --gray-200: #dee2e6;
  --gray-800: #343a40;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.16);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.demo-container {
  width: min(1200px, 94%);
  margin: 0 auto;
  padding: 40px 0 80px;
}

/* ================= HERO SECTION ================= */
.demo-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
  padding: 40px 0;
}

.demo-hero__content {
  animation: fadeInUp 0.6s ease-out;
}

.demo-badge {
  display: inline-block;
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50px;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
}

.demo-hero__title {
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 20px;
  background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 50%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.demo-hero__subtitle {
  font-size: 18px;
  line-height: 1.6;
  color: var(--gray-800);
  margin-bottom: 32px;
  opacity: 0.9;
}

.demo-hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.stat-item {
  text-align: center;
  padding: 20px 12px;
  background: var(--light);
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: var(--transition);
}

.stat-item:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.stat-number {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-800);
  opacity: 0.8;
}

.demo-hero__graphic {
  animation: float 6s ease-in-out infinite;
}

.screen-preview {
  background: white;
  border-radius: var(--radius-xl);
  padding: 30px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
  transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
  transition: var(--transition);
}

.screen-preview:hover {
  transform: perspective(1000px) rotateY(-5deg) rotateX(3deg);
}

.screen-preview__content {
  background: linear-gradient(135deg, #1a1f3a, #2d3250);
  border-radius: var(--radius-lg);
  padding: 30px;
  color: white;
}

.screen-preview__question {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 24px;
  line-height: 1.4;
  color: var(--gray-100);
}

.screen-preview__answers {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.answer-option {
  padding: 16px 20px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: var(--transition);
  border: 2px solid transparent;
}

.answer-option:hover {
  background: rgba(255,255,255,0.12);
  transform: translateX(8px);
}

.answer-option.correct {
  background: rgba(76, 201, 240, 0.15);
  border-color: var(--success);
  color: var(--success);
}

/* ================= VIDEO SECTION ================= */
.demo-video-section {
  margin-bottom: 80px;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-title {
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 800;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.icon {
  stroke-width: 2.5;
}

.section-subtitle {
  font-size: 18px;
  color: var(--gray-800);
  opacity: 0.8;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.video-container {
  max-width: 900px;
  margin: 0 auto;
}

.video-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #000;
}

.video-frame {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
}

.video-frame iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.2);
  opacity: 1;
  transition: var(--transition);
}

.video-wrapper:hover .video-overlay {
  opacity: 1;
}

.play-circle {
  width: 80px;
  height: 80px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  transition: var(--transition);
  cursor: pointer;
}

.play-circle:hover {
  transform: scale(1.1);
  background: white;
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.play-circle svg {
  width: 32px;
  height: 32px;
  margin-left: 4px;
}

.video-features {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.feature-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--light);
  border-radius: 50px;
  font-weight: 600;
  font-size: 14px;
  color: var(--gray-800);
  border: 2px solid transparent;
  transition: var(--transition);
}

.feature-chip:hover {
  background: white;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.feature-chip__icon {
  font-size: 18px;
}

/* ================= GALLERY SECTION ================= */
.screenshots-section {
  margin-bottom: 80px;
}

.filter-tabs {
  margin-bottom: 40px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.filter-tabs__scroller {
  display: flex;
  gap: 12px;
  padding: 8px 4px;
  min-width: max-content;
}

.filter-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--light);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-weight: 600;
  color: var(--gray-800);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.filter-tab:hover {
  background: white;
  border-color: var(--gray-200);
  transform: translateY(-2px);
}

.filter-tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.filter-tab__icon {
  font-size: 18px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.gallery-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  position: relative;
}

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

.gallery-card__preview {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.gallery-card__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-card:hover .gallery-card__preview img {
  transform: scale(1.05);
}

.gallery-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.gallery-card:hover .gallery-card__overlay {
  opacity: 1;
}

.view-button {
  width: 56px;
  height: 56px;
  background: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.view-button:hover {
  transform: scale(1.1);
  background: var(--primary);
  color: white;
}

.gallery-card__info {
  padding: 20px;
}

.gallery-card__title {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--dark);
}

.gallery-card__desc {
  font-size: 14px;
  color: var(--gray-800);
  opacity: 0.8;
  margin: 0 0 12px;
  line-height: 1.5;
}

.gallery-card__tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.host-tag { background: rgba(67, 97, 238, 0.1); color: var(--primary); }
.ndi-tag { background: rgba(114, 9, 183, 0.1); color: var(--secondary); }
.lowerthird-tag { background: rgba(247, 37, 133, 0.1); color: var(--accent); }
.lifeline-tag { background: rgba(255, 209, 102, 0.1); color: #d4a200; }
.correct-tag { background: rgba(76, 201, 240, 0.1); color: var(--success); }
.wrong-tag { background: rgba(239, 71, 111, 0.1); color: var(--danger); }

/* ================= LIGHTBOX ================= */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.lightbox[aria-hidden="false"] {
  display: flex;
  animation: fadeIn 0.3s ease;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(8px);
}

.lightbox__dialog {
  position: relative;
  z-index: 1;
  max-width: 1000px;
  width: 100%;
  background: white;
  border-radius: var(--radius-xl);
  overflow: hidden;
  animation: scaleUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.lightbox__close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  background: rgba(0,0,0,0.8);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: var(--transition);
}

.lightbox__close:hover {
  background: black;
  transform: rotate(90deg);
}

.lightbox__content {
  padding: 40px;
}

.lightbox__content img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
  margin-bottom: 24px;
}

.lightbox__caption {
  text-align: center;
}

.lightbox__caption h3 {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--dark);
}

.lightbox__caption p {
  color: var(--gray-800);
  opacity: 0.8;
  margin-bottom: 16px;
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 60px;
  height: 60px;
  background: rgba(0,0,0,0.8);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.lightbox__nav:hover {
  background: black;
  transform: translateY(-50%) scale(1.1);
}

.lightbox__nav--prev {
  left: -30px;
}

.lightbox__nav--next {
  right: -30px;
}

/* ================= TESTIMONIALS ================= */
.testimonials-section {
  margin-bottom: 80px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.testimonial-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

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

.testimonial-card--highlight {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border: none;
}

.testimonial-card--highlight .testimonial-quote {
  color: white;
}

.testimonial-card--highlight .author-info span {
  color: rgba(255,255,255,0.9);
}

.testimonial-quote {
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-info strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
}

.author-info span {
  font-size: 14px;
  color: var(--gray-800);
  opacity: 0.8;
}

.testimonials-cta {
  text-align: center;
  margin-top: 48px;
}

.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.cta-link:hover {
  background: rgba(67, 97, 238, 0.1);
  gap: 12px;
}

/* ================= CTA SECTION ================= */
.demo-cta {
  margin-top: 80px;
}

.cta-card {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-xl);
  padding: 60px;
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3z' fill='%23ffffff' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.cta-card__content {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: clamp(32px, 3vw, 48px);
  font-weight: 800;
  margin: 0 0 20px;
  line-height: 1.2;
}

.cta-description {
  font-size: 18px;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.cta-actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 700;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  background: white;
  color: var(--primary);
  border-color: white;
}

.btn-lg {
  padding: 18px 36px;
  font-size: 18px;
}

.cta-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  opacity: 0.9;
  margin-top: 24px;
}

.floating-elements {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.floating-element {
  position: absolute;
  font-size: 48px;
  animation: floatElement 20s infinite ease-in-out;
}

.floating-element--1 {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.floating-element--2 {
  top: 60%;
  right: 15%;
  animation-delay: 5s;
}

.floating-element--3 {
  bottom: 20%;
  left: 20%;
  animation-delay: 10s;
}

/* ================= ANIMATIONS ================= */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg) translateY(0);
  }
  50% {
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg) translateY(-20px);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleUp {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes floatElement {
  0%, 100% {
    transform: translate(0, 0) rotate(0deg);
  }
  33% {
    transform: translate(20px, -20px) rotate(10deg);
  }
  66% {
    transform: translate(-15px, 15px) rotate(-5deg);
  }
}

/* ================= RESPONSIVE ================= */
@media (max-width: 1024px) {
  .demo-hero {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .demo-hero__graphic {
    order: -1;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  .demo-hero__stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cta-card {
    padding: 40px 24px;
  }
  
  .cta-actions {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .lightbox__nav {
    width: 48px;
    height: 48px;
  }
  
  .lightbox__nav--prev {
    left: 10px;
  }
  
  .lightbox__nav--next {
    right: 10px;
  }
}

@media (max-width: 480px) {
  .demo-container {
    width: 96%;
  }
  
  .demo-hero__stats {
    grid-template-columns: 1fr;
  }
  
  .video-features {
    flex-direction: column;
    align-items: center;
  }
  
  .feature-chip {
    width: 100%;
    justify-content: center;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}

/* Utility Classes */
.text-muted {
  color: var(--gray-800);
  opacity: 0.8;
}

/* Loading States */
.gallery-card__preview {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}