:root {
  /* Colors matching main app */
  --color-grey-0: #f5f6f8;
  --color-grey-50: #e8eaed;
  --color-grey-100: #e8ecf1;
  --color-grey-200: #d1d9e3;
  --color-grey-300: #b8c4d4;
  --color-grey-500: #6c757d;
  --color-grey-600: #495057;
  --color-grey-700: #343a40;
  --color-grey-800: #212529;
  
  --color-brand-500: #6366f1;
  --color-brand-600: #4f46e5;
  --color-brand-700: #4338ca;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0px 0.6rem 2.4rem rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 2.4rem 3.2rem rgba(0, 0, 0, 0.12);
  
  --border-radius-sm: 5px;
  --border-radius-md: 7px;
  --border-radius-lg: 9px;
}

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

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', sans-serif;
  font-size: 1.6rem;
  line-height: 1.6;
  color: var(--color-grey-700);
  background-color: var(--color-grey-0);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Language Selector */
.language-selector {
  position: fixed;
  top: 8rem;
  right: 2rem;
  z-index: 1000;
}

.language-selector select {
  padding: 0.8rem 1.2rem;
  border: 1px solid var(--color-grey-300);
  border-radius: var(--border-radius-sm);
  background: white;
  color: var(--color-grey-700);
  font-size: 1.4rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

/* Header */
.header {
  background: white;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1.5rem 0;
}

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

.logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 4rem;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 3rem;
  list-style: none;
  align-items: center;
}

.nav-links li:last-child {
  margin-left: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-grey-700);
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--color-brand-600);
}

/* Buttons */
.btn-primary, .btn-secondary {
  padding: 1rem 2.4rem;
  border-radius: var(--border-radius-md);
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  font-size: 1.4rem;
}

.btn-primary {
  background: var(--color-brand-600);
  color: white;
}

.btn-primary:hover {
  background: var(--color-brand-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: white;
  color: var(--color-brand-600);
  border: 2px solid var(--color-brand-600);
}

.btn-secondary:hover {
  background: var(--color-brand-50);
}

.btn-large {
  padding: 1.4rem 3.2rem;
  font-size: 1.6rem;
}

/* Hero Section */
.hero {
  padding: 8rem 0 12rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-text {
  text-align: left;
}

.hero h1 {
  font-size: 4.8rem;
  font-weight: 700;
  margin-bottom: 2rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 2rem;
  margin-bottom: 4rem;
  opacity: 0.95;
}

.hero-cta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.hero-video {
  position: relative;
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: visible;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  background: rgba(0, 0, 0, 0.2);
}

/* Features Section */
.features {
  padding: 8rem 0;
  background: white;
}

.features h2 {
  text-align: center;
  font-size: 3.6rem;
  margin-bottom: 6rem;
  color: var(--color-grey-800);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.feature-card {
  padding: 3rem;
  background: var(--color-grey-0);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.feature-number {
  display: inline-block;
  width: 5rem;
  height: 5rem;
  background: linear-gradient(135deg, var(--color-brand-600), var(--color-brand-700));
  color: white;
  font-size: 2rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--color-grey-800);
}

.feature-card p {
  color: var(--color-grey-600);
  line-height: 1.7;
}

/* Demo Section */
.demo {
  padding: 8rem 0;
  background: var(--color-grey-0);
}

.demo h2 {
  text-align: center;
  font-size: 3.6rem;
  margin-bottom: 6rem;
  color: var(--color-grey-800);
}

.demo-videos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.demo-video h3 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--color-grey-800);
}

.video-placeholder {
  background: var(--color-grey-200);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 16/9;
}

.video-placeholder video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Pricing Section */
.pricing {
  padding: 8rem 0;
  background: white;
}

.pricing h2 {
  text-align: center;
  font-size: 3.6rem;
  margin-bottom: 1rem;
  color: var(--color-grey-800);
}

.pricing-subtitle {
  text-align: center;
  font-size: 1.6rem;
  color: var(--color-grey-600);
  margin-bottom: 5rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-card {
  padding: 4rem 3rem;
  background: var(--color-grey-0);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.pricing-card.featured {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  transform: scale(1.05);
}

.pricing-card.featured h3,
.pricing-card.featured .price,
.pricing-card.featured .pricing-features {
  color: white;
}

.badge {
  position: absolute;
  top: -1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: #fbbf24;
  color: var(--color-grey-800);
  padding: 0.5rem 1.5rem;
  border-radius: 2rem;
  font-size: 1.2rem;
  font-weight: 600;
}

.pricing-card h3 {
  font-size: 2.4rem;
  margin-bottom: 2rem;
  color: var(--color-grey-800);
}

.price {
  font-size: 4.8rem;
  font-weight: 700;
  margin-bottom: 3rem;
  color: var(--color-brand-600);
}

.pricing-card.featured .price {
  color: white;
}

.currency {
  font-size: 2.4rem;
  vertical-align: super;
}

.period {
  font-size: 1.6rem;
  font-weight: 400;
}

.pricing-features {
  list-style: none;
  margin-bottom: 3rem;
  text-align: left;
}

.pricing-features li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-grey-200);
  color: var(--color-grey-700);
}

.pricing-card.featured .pricing-features li {
  border-bottom-color: rgba(255, 255, 255, 0.2);
  color: white;
}

.pricing-features li:before {
  content: "✓ ";
  color: var(--color-brand-600);
  font-weight: 700;
  margin-right: 1rem;
}

.pricing-card.featured .pricing-features li:before {
  color: #fbbf24;
}

/* Footer */
.footer {
  background: var(--color-grey-800);
  color: var(--color-grey-200);
  padding: 6rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-section h4 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: white;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 1rem;
}

.footer-section a {
  color: var(--color-grey-300);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--color-grey-600);
  color: var(--color-grey-400);
}

/* Legal Pages */
.legal-page {
  padding: 8rem 0 4rem;
  background: white;
}

.legal-page h1 {
  font-size: 3.6rem;
  margin-bottom: 1rem;
  color: var(--color-grey-900);
}

.legal-page h2 {
  font-size: 2.4rem;
  margin-top: 3rem;
  margin-bottom: 1.5rem;
  color: var(--color-grey-800);
}

.legal-page h3 {
  font-size: 1.8rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--color-grey-700);
}

.legal-page p, .legal-page li {
  font-size: 1.5rem;
  line-height: 1.8;
  color: var(--color-grey-700);
  margin-bottom: 1.5rem;
}

.legal-page ul {
  margin-left: 2rem;
  margin-bottom: 2rem;
}

.legal-page a {
  color: var(--color-brand-600);
  text-decoration: underline;
}

.last-updated {
  color: var(--color-grey-500);
  font-style: italic;
  margin-bottom: 3rem;
}

/* Contact Page */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 4rem 0;
}

.contact-card {
  padding: 2rem;
  background: var(--color-grey-0);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-grey-200);
}

.contact-card h3 {
  margin-top: 0;
}

.contact-form-section {
  max-width: 600px;
  margin: 4rem auto;
}

.contact-form {
  background: var(--color-grey-0);
  padding: 3rem;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-grey-200);
}

.form-group {
  margin-bottom: 2rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-grey-700);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 1px solid var(--color-grey-300);
  border-radius: var(--border-radius-sm);
  font-size: 1.4rem;
}

.form-group textarea {
  resize: vertical;
}

.response-time {
  text-align: center;
  margin-top: 3rem;
  padding: 2rem;
  background: var(--color-blue-100);
  border-radius: var(--border-radius-md);
  color: var(--color-blue-700);
}

/* Resources Page */
.resource-filters {
  display: flex;
  gap: 1rem;
  margin: 3rem 0;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 1rem 2rem;
  border: 2px solid var(--color-grey-300);
  background: white;
  border-radius: var(--border-radius-md);
  font-size: 1.4rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
}

.filter-btn:hover {
  border-color: var(--color-brand-600);
  color: var(--color-brand-600);
}

.filter-btn.active {
  background: var(--color-brand-600);
  color: white;
  border-color: var(--color-brand-600);
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 3rem;
  margin-top: 3rem;
}

.resource-card {
  background: var(--color-grey-0);
  border: 1px solid var(--color-grey-200);
  border-radius: var(--border-radius-md);
  padding: 2.5rem;
  transition: transform 0.3s, box-shadow 0.3s;
}

.resource-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.resource-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--color-brand-100);
  color: var(--color-brand-700);
  border-radius: var(--border-radius-sm);
  font-size: 1.2rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.resource-card h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--color-grey-900);
}

.resource-date {
  font-size: 1.3rem;
  color: var(--color-grey-500);
  margin-bottom: 1.5rem;
}

.resource-card p {
  font-size: 1.4rem;
  line-height: 1.7;
  color: var(--color-grey-700);
  margin-bottom: 1.5rem;
}

.resource-link {
  display: inline-block;
  color: var(--color-brand-600);
  font-weight: 600;
  text-decoration: none;
  transition: color 0.3s;
}

.resource-link:hover {
  color: var(--color-brand-700);
}

.resource-link.disabled {
  color: var(--color-grey-400);
  cursor: not-allowed;
  pointer-events: none;
}

/* Video Cards */
.video-card {
  min-height: 400px;
}

.resource-video {
  width: 100%;
  height: 200px;
  border-radius: var(--border-radius-sm);
  margin-top: 1rem;
  object-fit: cover;
}

.video-card .resource-badge {
  background: var(--color-brand-600);
  color: white;
}

/* Responsive */
@media (max-width: 768px) {
  html {
    font-size: 56.25%;
  }

  .language-selector {
    top: 1rem;
    right: 1rem;
  }

  .nav {
    flex-direction: column;
    gap: 1.5rem;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
  }

  .logo-img {
    height: 3rem;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-text {
    text-align: center;
  }

  .hero-cta {
    justify-content: center;
  }

  .hero h1 {
    font-size: 3.2rem;
  }

  .hero-subtitle {
    font-size: 1.6rem;
  }

  .features h2,
  .demo h2,
  .pricing h2 {
    font-size: 2.8rem;
  }

  .features-grid,
  .demo-videos,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card.featured {
    transform: scale(1);
  }

  .language-selector {
    top: 1rem;
    right: 1rem;
  }
}

@media (max-width: 480px) {
  .nav-links {
    width: 100%;
  }

  .nav-links li {
    flex: 1;
    text-align: center;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .btn-large {
    width: 100%;
    max-width: 300px;
  }
}