:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --bg-raised: #121820;
  --border: #223041;
  --text: #d8e1ea;
  --text-dim: #8195a8;
  --accent: #3ddc97;
  --accent-dim: #2a7a5b;
  --danger: #f36c6c;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

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

header.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(11, 15, 20, 0.9);
  backdrop-filter: blur(6px);
  z-index: 10;
}

header.site-header .brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  letter-spacing: 0.02em;
}
header.site-header .brand span { color: var(--accent); }
header.site-header .brand:hover { text-decoration: none; }
header.site-header .brand img { display: block; height: 32px; width: auto; }

header.site-header nav a {
  color: var(--text-dim);
  margin-left: 24px;
  font-size: 14px;
  font-weight: 500;
}
header.site-header nav a:hover,
header.site-header nav a.active {
  color: var(--accent);
  text-decoration: none;
}

main { max-width: 960px; margin: 0 auto; padding: 48px 24px 96px; }
main.wide { max-width: 1120px; }

h1 { font-size: 32px; margin: 0 0 8px; }
h2 { font-size: 22px; border-bottom: 1px solid var(--border); padding-bottom: 8px; margin-top: 40px; }
h3 { font-size: 17px; }

.lede { color: var(--text-dim); font-size: 18px; max-width: 640px; }
.tagline { color: var(--accent); font-family: var(--mono); font-size: 14px; letter-spacing: 0.03em; margin: 0 0 20px; }

.pill {
  display: inline-block;
  font-size: 12px;
  font-family: var(--mono);
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 999px;
  padding: 3px 10px;
  margin-bottom: 16px;
}

.cta-row { display: flex; gap: 12px; margin: 28px 0; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid var(--border);
}
.btn.primary { background: var(--accent); color: #06231a; border-color: var(--accent); }
.btn.primary:hover { text-decoration: none; opacity: 0.9; }
.btn.secondary { color: var(--text); }
.btn.secondary:hover { text-decoration: none; border-color: var(--accent-dim); }

pre {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  padding: 16px;
  border-radius: 8px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13.5px;
}
code { font-family: var(--mono); background: var(--bg-raised); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }
pre code { background: none; padding: 0; }

.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin: 24px 0; }
.card { background: var(--bg-raised); border: 1px solid var(--border); border-radius: 10px; padding: 20px; }
.card h3 { margin-top: 0; color: var(--accent); }

table { border-collapse: collapse; width: 100%; margin: 16px 0; }
th, td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; font-size: 14px; }
th { background: var(--bg-raised); }

footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 32px;
  color: var(--text-dim);
  font-size: 13px;
  text-align: center;
}

/* Playground */
.playground-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 800px) { .playground-grid { grid-template-columns: 1fr; } }
textarea.editor {
  width: 100%;
  min-height: 260px;
  background: var(--bg-raised);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  font-family: var(--mono);
  font-size: 13.5px;
  resize: vertical;
}
.panel { background: var(--bg-raised); border: 1px solid var(--border); border-radius: 8px; padding: 16px; min-height: 260px; overflow: auto; }
.panel h4 { margin: 0 0 10px; color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
.status-ok { color: var(--accent); }
.status-err { color: var(--danger); }
.tree ul { list-style: none; padding-left: 18px; border-left: 1px dashed var(--border); margin: 4px 0; }
.tree li { margin: 3px 0; }
.tree .kind { color: var(--accent); font-size: 12px; text-transform: uppercase; margin-right: 6px; }
.tree .val { font-family: var(--mono); }

/* Download */
.dl-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* Docs viewer */
.docs-layout { display: flex; gap: 0; align-items: flex-start; }
.docs-nav { width: 220px; flex-shrink: 0; padding-right: 24px; position: sticky; top: 90px; }
.docs-nav a { display: block; padding: 6px 10px; border-radius: 6px; font-size: 14px; color: var(--text); margin-bottom: 2px; }
.docs-nav a:hover { background: var(--bg-raised); text-decoration: none; }
.docs-nav a.active { background: rgba(61, 220, 151, 0.12); color: var(--accent); font-weight: 600; }
.docs-content { flex: 1; min-width: 0; }
.docs-content h1, .docs-content h2, .docs-content h3 { border-bottom: 1px solid var(--border); padding-bottom: 8px; }