:root {
  --fg: #1a1a2e;
  --fg-muted: #64748b;
  --bg: #fff;
  --bg-page: #fafbfc;
  --bg-alt: #f8fafc;
  --border: #e8ecf0;
  --accent: #635bff;
  --accent-dark: #4b44c9;
  --code-bg: #0a2540;
  --code-fg: #e3e8ee;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-page);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

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

.topbar {
  display: flex;
  align-items: center;
  padding: 14px 28px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 17px; color: var(--fg); margin-right: 36px; }
.brand span { color: var(--accent); position: relative; top: -1px; }
.brand:hover { text-decoration: none; }
.topnav { display: flex; gap: 4px; margin-left: auto; }
.topnav a {
  color: var(--fg-muted); font-size: 14px; font-weight: 500;
  padding: 6px 12px; border-radius: 6px;
}
.topnav a:hover { color: var(--fg); background: var(--bg-alt); text-decoration: none; }

.hero {
  max-width: 820px;
  margin: 72px auto 56px;
  padding: 0 24px;
  text-align: center;
}
.hero h1 {
  font-size: 44px;
  font-weight: 700;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.hero .lede {
  font-size: 18px;
  color: var(--fg-muted);
  margin: 0 auto 32px;
  max-width: 580px;
  line-height: 1.6;
}
.cta { display: flex; gap: 12px; justify-content: center; margin-bottom: 48px; }
.btn-primary, .btn-secondary {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-dark); text-decoration: none; }
.btn-secondary {
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-alt); text-decoration: none; }

.snippet {
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 20px 24px;
  border-radius: 8px;
  text-align: left;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.6;
  margin: 0;
}

.features {
  max-width: 1040px;
  margin: 0 auto 80px;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
}
.card h3 { margin: 0 0 10px; font-size: 17px; font-weight: 600; }
.card p { margin: 0; color: var(--fg-muted); line-height: 1.6; }

footer {
  text-align: center;
  padding: 32px 24px 48px;
  color: var(--fg-muted);
  font-size: 13px;
}