/* Complete CSS Reset and Variables */
:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --secondary-color: #64748b;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --background-light: #f8fafc;
  --background-dark: #0f172a;
  --card-light: #ffffff;
  --card-dark: #1e293b;
  --border-light: #e2e8f0;
  --border-dark: #334155;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-light);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Navigation */
.navbar {
  background-color: var(--card-light);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  transition: background-color 0.3s ease;
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

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

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-item a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
}

.nav-item a:hover {
  color: var(--primary-color);
  background-color: var(--primary-color);
  color: white;
}

.nav-item a.active {
  color: var(--primary-color);
  background-color: var(--primary-color);
  color: white;
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.5rem;
  transition: background-color 0.3s ease;
  color: var(--text-primary);
}

.theme-toggle:hover {
  background-color: var(--background-light);
}

.theme-toggle svg {
  width: 24px;
  height: 24px;
}

/* Dark Mode */
body.dark-mode {
  color: var(--text-primary);
  background-color: var(--background-dark);
}

.dark-mode .navbar {
  background-color: var(--card-dark);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.dark-mode .nav-item a {
  color: #cbd5e1;
}

.dark-mode .nav-item a:hover {
  color: var(--primary-light);
}

.dark-mode .theme-toggle:hover {
  background-color: var(--card-dark);
}

/* Sections */
.hero {
  margin-top: 80px;
  padding: 4rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: white;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-button {
  background-color: white;
  color: var(--primary-color);
  padding: 1rem 2rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.features {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--text-primary);
}

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

.feature-card {
  background-color: var(--card-light);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
}

.dark-mode .feature-card {
  background-color: var(--card-dark);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background-color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  color: white;
}

.feature-icon svg {
  width: 30px;
  height: 30px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.contact {
  padding: 4rem 2rem;
  background-color: var(--background-light);
  text-align: center;
}

.dark-mode .contact {
  background-color: var(--card-dark);
}

.contact h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--card-light);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.dark-mode .contact-form {
  background-color: var(--card-dark);
}

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

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--border-light);
  border-radius: 0.5rem;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.dark-mode .form-group input,
.dark-mode .form-group textarea {
  background-color: var(--background-dark);
  border-color: var(--border-dark);
  color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-button {
  width: 100%;
  background-color: var(--primary-color);
  color: white;
  padding: 1rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.form-button:hover {
  background-color: var(--primary-dark);
}

.footer {
  background-color: var(--card-dark);
  color: white;
  padding: 2rem;
  text-align: center;
}

.footer p {
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1rem;
}

.footer-links a {
  color: #cbd5e1;
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* Form styles */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* Special pages */
.privacy-content,
.terms-content {
  background-color: var(--card-light);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  line-height: 1.8;
}

.dark-mode .privacy-content,
.dark-mode .terms-content {
  background-color: var(--card-dark);
}

.privacy-content h2,
.terms-content h2,
.privacy-content h3,
.terms-content h3 {
  color: var(--primary-color);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.privacy-content ul,
.terms-content ul {
  margin-left: 2rem;
  margin-bottom: 1rem;
}

.privacy-content li,
.terms-content li {
  margin-bottom: 0.5rem;
}

.sitemap-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.sitemap-section {
  background-color: var(--card-light);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.dark-mode .sitemap-section {
  background-color: var(--card-dark);
}

.sitemap-section h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sitemap-list {
  list-style: none;
  padding: 0;
}

.sitemap-list li {
  margin-bottom: 0.75rem;
}

.sitemap-list a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 0;
  display: block;
  transition: color 0.3s ease;
}

.sitemap-list a:hover {
  color: var(--primary-color);
}

/* Responsive */
@media (max-width: 768px) {
  .navbar-container {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-menu {
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    text-align: center;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .contact-form {
    margin: 0 1rem;
    padding: 1.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-links {
    flex-direction: column;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 2rem 1rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .features {
    padding: 2rem 1rem;
  }

  .contact {
    padding: 2rem 1rem;
  }
}