:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #1e293b;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #6d28d9;
  --accent-light: #a78bfa;
  --accent-dark: #4c1d95;
  --border: #334155;
  --radius: 12px;
  --radius-sm: 8px;
}

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

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a:not(.btn) {
  color: var(--text-secondary);
  transition: color 0.2s;
}

.nav-links a:not(.btn):hover {
  color: var(--text-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent-light);
}

.btn-large {
  padding: 14px 28px;
  font-size: 1rem;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  background: radial-gradient(ellipse at top, rgba(109, 40, 217, 0.15) 0%, transparent 60%);
}

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

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-light), #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero-meta {
  display: flex;
  gap: 12px;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.features {
  padding: 100px 0;
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 60px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(109, 40, 217, 0.15);
}

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

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.how {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.how h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 60px;
}

.steps {
  max-width: 700px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 24px;
  margin-bottom: 48px;
}

.step:last-child {
  margin-bottom: 0;
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
}

.step-content h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.step-content p {
  color: var(--text-secondary);
}

.try {
  padding: 100px 0;
}

.try-content {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.try-content h2 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.try-content > p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.try-code {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 16px;
  overflow-x: auto;
}

.try-code code {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  font-size: 0.9rem;
  color: var(--accent-light);
}

.try-hint {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--border);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  padding: 6px 0;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 40px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .nav-links a:not(.btn) {
    display: none;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .step {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}