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

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary: #64748b;
  --accent: #f59e0b;
  --success: #10b981;
  --danger: #ef4444;
  --light: #f8fafc;
  --dark: #1e293b;
  --border: #e2e8f0;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background: var(--light);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

header {
  background: white;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  padding: 1rem 0;
}

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

.logo h1 {
  font-size: 1.5rem;
  color: var(--primary);
  margin: 0;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  margin: 0;
}

.nav-links a {
  color: var(--dark);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

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

.language-selector select {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: white;
  font-size: 0.9rem;
  cursor: pointer;
}

.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 6rem 0;
  text-align: center;
}

.hero h2 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.95;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

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

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

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.hero-note {
  font-size: 0.9rem;
  opacity: 0.8;
}

section {
  padding: 5rem 0;
}

.features {
  background: white;
}

.features h2, .pricing h2, .testimonials h2, .contact h2 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--dark);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all 0.3s;
}

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

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--dark);
}

.feature-card p {
  color: var(--secondary);
}

.pricing {
  background: var(--light);
}

.pricing-subtitle {
  text-align: center;
  color: var(--secondary);
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-card {
  background: white;
  padding: 2.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  text-align: center;
  position: relative;
  transition: all 0.3s;
}

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

.pricing-card.featured {
  border-color: var(--primary);
  transform: scale(1.05);
}

.pricing-card.featured:hover {
  transform: scale(1.05) translateY(-5px);
}

.badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: white;
  padding: 0.5rem 1.5rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.pricing-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--dark);
}

.price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.price span {
  font-size: 1rem;
  color: var(--secondary);
  font-weight: 400;
}

.price-note {
  color: var(--secondary);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.pricing-card ul {
  list-style: none;
  margin-bottom: 2rem;
  text-align: left;
}

.pricing-card li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--secondary);
}

.pricing-card li:before {
  content: "✓";
  color: var(--success);
  font-weight: 700;
  margin-right: 0.5rem;
}

.pricing-card .btn {
  width: 100%;
}

.testimonials {
  background: white;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  padding: 2rem;
  background: var(--light);
  border-radius: 12px;
  border: 1px solid var(--border);
}

.stars {
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.testimonial-card p {
  color: var(--dark);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author strong {
  display: block;
  color: var(--dark);
  margin-bottom: 0.25rem;
}

.testimonial-author span {
  color: var(--secondary);
  font-size: 0.9rem;
}

.contact {
  background: var(--light);
}

.contact-subtitle {
  text-align: center;
  color: var(--secondary);
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background: white;
  padding: 3rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.contact-form .btn {
  width: 100%;
}

footer {
  background: var(--dark);
  color: white;
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h3 {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

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

.footer-section li {
  margin-bottom: 0.75rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom p {
  margin: 0.5rem 0;
}

.translation-indicator {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: white;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  z-index: 1000;
  transition: all 0.3s;
}

.translation-indicator.translating {
  background: var(--accent);
  color: white;
}

.translation-indicator.error {
  background: var(--danger);
  color: white;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
}

.translation-indicator.translating .status-dot {
  background: white;
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero h2 {
    font-size: 2rem;
  }

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

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

  .pricing-card.featured:hover {
    transform: translateY(-5px);
  }
}