:root {
  --bg: #12141a;
  --panel: #1b1f29;
  --ink: #e8e6df;
  --muted: #a8a396;
  --line: #2d3340;
  --accent: #f0b429;
  --accent-2: #9b7dff;
  --openai: #10a37f;
  --anthropic: #d97757;
  --code-bg: #0d0f14;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font-family: "Source Sans 3", sans-serif; }
code, pre, select, textarea, input, .out { font-family: "IBM Plex Mono", ui-monospace, monospace; }
.shell { max-width: 1180px; margin: 0 auto; padding: 32px 20px 64px; }
.hero h1 { font-size: 2.1rem; letter-spacing: -0.03em; margin: 0 0 8px; }
.eyebrow { color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.78rem; margin: 0 0 8px; }
.lede { color: var(--muted); max-width: 70ch; line-height: 1.5; }
.lede code { color: var(--ink); }
.tabs { display: flex; gap: 8px; margin: 28px 0 18px; flex-wrap: wrap; }
.tab { background: var(--panel); color: var(--ink); border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px; cursor: pointer; }
.tab.active { background: var(--accent); color: #1a1404; border-color: var(--accent); font-weight: 700; }
.panel { display: none; }
.panel.active { display: block; }
.toolbar { display: grid; grid-template-columns: 1fr 180px auto auto; gap: 10px; align-items: center; margin-bottom: 16px; }
input, select, textarea { background: var(--panel); color: var(--ink); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; width: 100%; }
.segmented { display: flex; gap: 10px; border: 1px solid var(--line); border-radius: 10px; padding: 6px 10px; margin: 0; }
.segmented legend { display: none; }
.sr { position: absolute; left: -9999px; }
.count { color: var(--muted); margin: 0; }
.split { display: grid; grid-template-columns: 320px 1fr; gap: 18px; }
#picker { height: 520px; width: 100%; }
.meta h3 { margin: 0 0 8px; }
.meta p { color: var(--muted); line-height: 1.5; }
.meta strong { color: var(--ink); }
.code-grid { display: grid; gap: 12px; }
.code-grid.both { grid-template-columns: 1fr 1fr; }
.code-wrap { position: relative; background: var(--code-bg); border: 1px solid var(--line); border-radius: 12px; overflow: auto; }
.code-wrap h4 { margin: 0; padding: 10px 12px; font-size: 0.8rem; border-bottom: 1px solid var(--line); }
.code-wrap.openai h4 { color: var(--openai); }
.code-wrap.anthropic h4 { color: var(--anthropic); }
pre { margin: 0; padding: 12px; white-space: pre-wrap; word-break: break-word; font-size: 0.78rem; line-height: 1.45; }
.copy { position: absolute; top: 8px; right: 8px; background: #2a3140; color: var(--ink); border: 0; border-radius: 8px; padding: 4px 8px; cursor: pointer; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field-label { display: block; margin: 12px 0 6px; font-size: 0.85rem; color: var(--muted); }
.primary { background: var(--accent); color: #1a1404; border: 0; border-radius: 10px; padding: 10px 16px; font-weight: 700; cursor: pointer; margin-top: 12px; }
.hint { color: var(--muted); font-size: 0.92rem; }
.out { min-height: 140px; background: var(--code-bg); border: 1px solid var(--line); border-radius: 12px; padding: 12px; white-space: pre-wrap; }
.ref { width: 100%; border-collapse: collapse; }
.ref th, .ref td { text-align: left; border-bottom: 1px solid var(--line); padding: 10px 8px; vertical-align: top; }
.ref th { color: var(--accent); }
.install pre { background: var(--code-bg); border-radius: 12px; padding: 12px; }
@media (max-width: 900px) {
  .toolbar, .split, .grid-2, .code-grid.both { grid-template-columns: 1fr; }
  #picker { height: 220px; }
}