:root {
  --color-bg: #0f1117;
  --color-surface: #1a1d27;
  --color-primary: #6366f1;
  --color-primary-hover: #818cf8;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-border: #2d3348;
  --font-sans: system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
}

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

/* Nav */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
}
.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.logo-img {
  width: 2rem;
  height: 2rem;
}
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a { color: var(--color-text-muted); text-decoration: none; }
.nav-links a:hover { color: var(--color-text); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text);
}
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-lg { padding: 0.8rem 2rem; font-size: 1.1rem; }

/* Hero */
.hero {
  text-align: center;
  max-width: 800px;
  margin: 6rem auto 4rem;
  padding: 0 2rem;
}
.hero h1 {
  font-size: 3rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--color-primary), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}
.hero code {
  background: var(--color-surface);
  padding: 0.15rem 0.4rem;
  border-radius: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.9em;
}
.hero-cta { display: flex; gap: 1rem; justify-content: center; }

/* Features */
.features {
  max-width: 1200px;
  margin: 4rem auto;
  padding: 0 2rem;
}
.features h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2rem;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}
.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 1.5rem;
}
.feature-card h3 {
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}
.feature-card p { color: var(--color-text-muted); }

/* How It Works */
.how-it-works {
  max-width: 800px;
  margin: 4rem auto;
  padding: 0 2rem;
}
.how-it-works h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2rem;
}
.steps {
  list-style: none;
  counter-reset: step;
}
.steps li {
  counter-increment: step;
  padding: 1rem 0 1rem 3.5rem;
  position: relative;
  border-left: 2px solid var(--color-border);
  margin-left: 1rem;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: -1.1rem;
  top: 1rem;
  width: 2rem;
  height: 2rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

/* Pricing */
.pricing {
  max-width: 800px;
  margin: 4rem auto;
  padding: 0 2rem;
}
.pricing h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2rem;
}
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 2rem;
  display: flex;
  flex-direction: column;
}
.pricing-card-featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.15);
}
.pricing-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}
.pricing-price {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--color-primary), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.pricing-price span {
  font-size: 1rem;
  font-weight: 400;
  -webkit-text-fill-color: var(--color-text-muted);
}
.pricing-features {
  list-style: none;
  flex: 1;
  margin-bottom: 1.5rem;
}
.pricing-features li {
  padding: 0.4rem 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}
.pricing-features li::before {
  content: "✓ ";
  color: var(--color-primary);
  font-weight: 700;
}
.pricing-card .btn { text-align: center; }

/* Footer */
footer {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  margin-top: 4rem;
}

@media (max-width: 640px) {
  .hero h1 { font-size: 2rem; }
  .hero-cta { flex-direction: column; }
  nav { flex-direction: column; gap: 1rem; }
  .pricing-grid { grid-template-columns: 1fr; }
}