/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Dark Theme Colors */
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --bg-card: #1e1e1e;

  --text-primary: #ffffff;
  --text-secondary: #b3b3b3;
  --text-muted: #666666;

  --accent-primary: #00d4ff;
  --accent-secondary: #0099cc;
  --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);

  --border-color: #333333;
  --border-hover: #555555;

  /* Spacing */
  --container-max-width: 1200px;
  --section-padding: 80px 0;
  --card-padding: 32px;

  /* Typography */
  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: var(--font-size-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-icon {
  color: var(--accent-primary);
  display: flex;
  align-items: center;
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 600;
  letter-spacing: -0.025em;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--accent-primary);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition-normal);
}

.nav-link:hover::after {
  width: 100%;
}

/* Hero Section */
.hero {
  padding: 120px 0;
  text-align: center;
  background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  margin-bottom: 24px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hero-description {
  font-size: var(--font-size-xl);
  color: var(--text-secondary);
  margin-bottom: 48px;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn-primary,
.btn-secondary {
  padding: 16px 32px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: var(--font-size-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 4px 14px 0 rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px 0 rgba(0, 212, 255, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
}

/* Stats Section */
.stats {
  padding: var(--section-padding);
  background-color: var(--bg-secondary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 48px;
  text-align: center;
}

.stat-item {
  padding: 24px;
}

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 8px;
}

.stat-label {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
}

/* Features Section */
.features {
  padding: var(--section-padding);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: 64px;
  color: var(--text-primary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.feature-card {
  background-color: var(--bg-card);
  padding: var(--card-padding);
  border-radius: 16px;
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.1);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

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

/* Testimonials Section */
.testimonials {
  padding: var(--section-padding);
  background-color: var(--bg-secondary);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 32px;
}

.testimonial-card {
  background-color: var(--bg-card);
  padding: var(--card-padding);
  border-radius: 16px;
  border: 1px solid var(--border-color);
}

.testimonial-content {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-style: italic;
  line-height: 1.6;
}

.testimonial-author strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 4px;
}

.testimonial-author span {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

/* Contact Section */
.contact {
  padding: var(--section-padding);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: 16px;
  color: var(--text-primary);
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  color: var(--text-secondary);
}

.contact-item strong {
  color: var(--text-primary);
}

.contact-form {
  background-color: var(--bg-card);
  padding: var(--card-padding);
  border-radius: 16px;
  border: 1px solid var(--border-color);
}

.contact-form form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-form input,
.contact-form textarea {
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

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

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-muted);
}

/* Footer */
.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 32px 0;
}

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

.footer-content p {
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Legal Pages */
.legal-page {
  padding: 80px 0;
  max-width: 800px;
  margin: 0 auto;
}

.legal-page h1 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: 48px;
  text-align: center;
  color: var(--text-primary);
}

.legal-section {
  margin-bottom: 48px;
}

.legal-section h2 {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--accent-primary);
}

.legal-section p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
}

.legal-section ul {
  margin: 16px 0;
  padding-left: 24px;
}

.legal-section li {
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.6;
}

.legal-section li strong {
  color: var(--text-primary);
}

.contact-info {
  background-color: var(--bg-card);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  margin: 24px 0;
}

.contact-info p {
  margin-bottom: 8px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .header-content {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .nav {
    gap: 24px;
  }

  .hero {
    padding: 80px 0;
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-description {
    font-size: var(--font-size-lg);
  }

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

  .btn-primary,
  .btn-secondary {
    width: 100%;
    max-width: 280px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

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

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

  .contact-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-content {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .section-title {
    font-size: var(--font-size-3xl);
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

  .legal-page h1 {
    font-size: var(--font-size-3xl);
  }

  .legal-section h2 {
    font-size: var(--font-size-xl);
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for keyboard navigation */
button:focus,
input:focus,
textarea:focus,
a:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --bg-primary: #000000;
    --bg-secondary: #111111;
    --border-color: #555555;
  }
}