:root {
  --color-bg: #0b0f19;
  --color-surface: #111827;
  --color-border: #1f2937;
  --color-text: #e5e7eb;
  --color-muted: #9ca3af;
  --color-accent: #22c55e;
  --color-accent-2: #10b981;
  --radius: 12px;
  --max-width: 960px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.6;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header, main, footer {
  padding: 24px;
}

header {
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(180deg, rgba(17,24,39,0.9), rgba(11,15,25,0.6));
  position: sticky;
  top: 0;
  backdrop-filter: blur(6px);
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand span {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-muted);
  font-weight: 500;
}

.nav-links a[aria-current="page"] {
  color: #fff;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
}

section {
  padding: 48px 0;
}

h1, h2, h3 {
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin: 0 0 12px;
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin: 0 0 12px;
}

.lead {
  color: var(--color-muted);
  font-size: 1.05rem;
  max-width: 720px;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 12px 16px;
  border-radius: var(--radius);
  background: var(--color-accent);
  color: #052e16;
  font-weight: 700;
}

.cta.secondary {
  background: transparent;
  color: var(--color-accent);
  box-shadow: inset 0 0 0 1px var(--color-border);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px;
}

.pricing-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 10px 30px rgba(34, 197, 94, 0.08);
}

.price {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  margin: 8px 0;
}

.price span {
  font-size: 0.9rem;
  color: var(--color-muted);
  font-weight: 500;
}

.features {
  list-style: none;
  margin: 12px 0 18px;
  padding: 0;
  color: var(--color-muted);
}

.features li::before {
  content: "✓ ";
  color: var(--color-accent);
}

footer {
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.9rem;
}

code {
  background: #0b1220;
  border: 1px solid var(--color-border);
  padding: 2px 6px;
  border-radius: 6px;
  color: #e5e7eb;
}

pre {
  background: #0b1220;
  border: 1px solid var(--color-border);
  padding: 14px;
  border-radius: var(--radius);
  overflow-x: auto;
}

pre code {
  background: transparent;
  border: 0;
  padding: 0;
}