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

:root {
  --color-bg-dark: #1a1a2e;
  --color-bg-darker: #16213e;
  --color-accent: #60a5fa;
  --color-accent-light: #93c5fd;
  --color-text: #ffffff;
  --color-text-muted: #a1a1aa;
  --color-gray-border: #2a2a3e;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --radius: 8px;
  --max-width: 1200px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  background: var(--color-bg-dark);
  color: var(--color-text);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-darker) 100%);
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.logo {
  font-size: 5rem;
  margin-bottom: var(--spacing-md);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.hero h1 {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  font-size: 1.5rem;
  color: var(--color-accent-light);
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

.subtitle {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
}

.cta-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  padding: 1rem 2rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.2s ease;
  display: inline-block;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg-dark);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(96, 165, 250, 0.3);
}

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

.btn-secondary:hover {
  background: rgba(96, 165, 250, 0.1);
  transform: translateY(-2px);
}

/* Features Section */
.features {
  padding: var(--spacing-xl) 0;
  background: var(--color-bg-darker);
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-accent-light);
}

.intro {
  text-align: center;
  font-size: 1.2rem;
  color: var(--color-text-muted);
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.feature {
  background: var(--color-bg-dark);
  padding: var(--spacing-md);
  border-radius: var(--radius);
  border: 1px solid var(--color-gray-border);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.feature:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.feature h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent-light);
}

.feature p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
  padding: var(--spacing-xl) 0;
  background: var(--color-bg-dark);
}

.how-it-works h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-accent-light);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  max-width: 900px;
  margin: 0 auto;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
  color: var(--color-bg-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  margin: 0 auto var(--spacing-sm);
}

.step h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent-light);
}

.step p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* Integrations Section */
.integrations {
  padding: var(--spacing-xl) 0;
  background: var(--color-bg-darker);
}

.integrations h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-accent-light);
}

.integration-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  max-width: 900px;
  margin: 0 auto;
}

.integration {
  background: var(--color-bg-dark);
  padding: var(--spacing-md);
  border-radius: var(--radius);
  border: 1px solid var(--color-gray-border);
  text-align: center;
}

.integration strong {
  display: block;
  font-size: 1.3rem;
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
}

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

/* Final CTA Section */
.cta-final {
  padding: var(--spacing-xl) 0;
  background: var(--color-bg-dark);
  text-align: center;
}

.cta-final h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent-light);
}

.cta-final p {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
}

/* Footer */
footer {
  background: var(--color-bg-darker);
  padding: var(--spacing-md) 0;
  border-top: 1px solid var(--color-gray-border);
}

footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

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

.footer-links {
  display: flex;
  gap: var(--spacing-md);
}

.footer-links a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

  .tagline {
    font-size: 1.2rem;
  }

  .subtitle {
    font-size: 1rem;
  }

  .features h2,
  .how-it-works h2,
  .integrations h2,
  .cta-final h2 {
    font-size: 2rem;
  }

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

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

  footer .container {
    flex-direction: column;
    text-align: center;
  }

  .cta-group {
    flex-direction: column;
    width: 100%;
  }

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