:root {
  --primary: #2563eb;
  --secondary: #4f46e5;
  --accent: #06b6d4;
  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --bg-primary: #ffffff;
  --bg-secondary: #f3f4f6;
  --transition: all 0.3s ease;
}

[data-theme="dark"] {
  --primary: #3b82f6;
  --secondary: #6366f1;
  --accent: #0891b2;
  --text-primary: #f9fafb;
  --text-secondary: #e5e7eb;
  --bg-primary: #111827;
  --bg-secondary: #1f2937;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: var(--transition);
  overflow-x: hidden;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1rem 2rem;
  background-color: var(--bg-primary);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transform: translateY(-100%);
  animation: slideDown 0.8s forwards 0.5s;
}

@keyframes slideDown {
  to {
    transform: translateY(0);
  }
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.logo:hover {
  transform: scale(1.05);
}

.nav-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.theme-toggle,
.lang-select {
  padding: 0.5rem;
  border: none;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
}

.theme-toggle:hover,
.lang-select:hover {
  background: var(--primary);
  color: white;
  transform: scale(1.1);
}

/* Hero Section */
.hero {
  margin-top: 5rem;
  padding: 6rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1));
  pointer-events: none;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s forwards 0.5s;
}

.hero p {
  font-size: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s forwards 0.7s;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background: var(--primary);
  color: white;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: var(--transition);
  margin-top: 1rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s forwards 0.9s;
}

.btn:hover {
  background: var(--secondary);
  transform: translateY(-3px) scale(1.05);
}

/* Services Section */
.services {
  padding: 6rem 2rem;
  background: var(--bg-secondary);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2.5rem;
  color: var(--primary);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s forwards 0.5s;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.service-card {
  background: var(--bg-primary);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s forwards;
}

.service-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

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

/* Pricing Section */
.pricing {
  padding: 6rem 2rem;
  background: var(--bg-primary);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-secondary);
  padding: 2.5rem 2rem;
  border-radius: 1rem;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s forwards;
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.pricing-card:hover {
  transform: scale(1.02);
}

.price {
  font-size: 2.5rem;
  color: var(--primary);
  margin: 1rem 0;
  font-weight: bold;
}

.features-list {
  list-style: none;
  margin: 2rem 0;
  text-align: left;
}

.features-list li {
  margin: 0.8rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.features-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* Contact Section */
.contact {
  padding: 6rem 2rem;
  background: var(--bg-secondary);
  text-align: center;
}

.contact-form {
  max-width: 600px;
  margin: 2rem auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  padding: 0.8rem;
  border: 1px solid var(--bg-secondary);
  border-radius: 0.5rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
  transform: scale(1.02);
}

.contact-form textarea {
  resize: vertical;
  min-height: 150px;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin: 2rem 0;
}

.social-link {
  color: var(--text-primary);
  font-size: 1.5rem;
  transition: var(--transition);
}

.social-link:hover {
  color: var(--primary);
  transform: translateY(-3px) scale(1.1);
}

/* Footer */
footer {
  padding: 2rem;
  background: var(--bg-primary);
  text-align: center;
  border-top: 1px solid var(--bg-secondary);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 10px 15px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

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

.back-to-top:hover {
  transform: scale(1.1);
}

/* Animations */
@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  to {
    transform: translateY(0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.2rem;
  }

  .services-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

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

.reviews {
  padding: 6rem 2rem;
  background: var(--bg-secondary);
}

.reviews-header {
  text-align: center;
  margin-bottom: 3rem;
}

.rating-summary {
  margin: 2rem 0;
}

.rating-stars {
  color: var(--secondary);
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.rating-score {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.rating-count {
  color: var(--text-secondary);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.review-card {
  background: var(--bg-primary);
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.review-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.reviewer-info {
  flex-grow: 1;
}

.reviewer-name {
  font-weight: bold;
  color: var(--text-primary);
}

.reviewer-location {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.review-rating {
  color: var(--secondary);
  font-weight: bold;
}

.review-text {
  color: var(--text-primary);
  margin: 1rem 0;
  line-height: 1.6;
}

.review-date {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .reviews-grid {
    grid-template-columns: 1fr;
  }
}