/* agents.ai3d.dev styles. Tokens and components follow the AI3D API v2 design system (gcp/v2/app/ui/ai3d-ui.css).
   No scripts, fonts, or external resources; the site CSP allows only same-origin styles and images. */
:root{color-scheme:dark light;
  --bg:#0b0d10;--surface:#111418;--surface-2:#171b21;--surface-hover:#1c2129;
  --border:#262b33;--border-strong:#343b46;
  --fg:#ecedef;--fg-muted:#9aa3af;
  --accent:#7aa7ff;--accent-hover:#9bbcff;--accent-soft:rgba(122,167,255,.14);
  --primary-bg:#ecedef;--primary-fg:#0b0d10;--primary-hover:#fff;--focus:#7aa7ff;
  --info:#7aa7ff;--info-bg:#202938;
  --code-bg:#0d1014;--code-fg:#d6dbe3;
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --radius-sm:6px;--radius:8px;--radius-lg:12px;--radius-pill:999px;
  --font-sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --container:1120px;--header-h:56px}
@media (prefers-color-scheme:light){:root{
  --bg:#fafafa;--surface:#fff;--surface-2:#f4f5f7;--surface-hover:#eef0f3;
  --border:#e4e6ea;--border-strong:#cfd3da;
  --fg:#0f1216;--fg-muted:#566070;
  --accent:#1d4ed8;--accent-hover:#1e40af;--accent-soft:rgba(29,78,216,.08);
  --primary-bg:#0f1216;--primary-fg:#fafafa;--primary-hover:#2a313b;--focus:#1d4ed8;
  --info:#1d4ed8;--info-bg:#e9effd;
  --code-bg:#f3f4f6;--code-fg:#1f2937;
  --shadow-sm:0 1px 2px rgba(15,18,22,.06)}}

/* base */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;background:var(--bg);color:var(--fg);font:400 15px/1.55 var(--font-sans);-webkit-font-smoothing:antialiased}
main{flex:1 0 auto;width:100%}
main:focus{outline:none}
h1,h2,h3{margin:0 0 12px;font-weight:650;color:var(--fg)}
h1{font-size:clamp(2.25rem,5vw,3.5rem);letter-spacing:-.03em;line-height:1.1}
h2{font-size:1.75rem;letter-spacing:-.02em;line-height:1.25}
h3{font-size:1.125rem;letter-spacing:-.01em;line-height:1.3}
p{margin:0 0 12px}
ul,ol{margin:0 0 12px;padding-left:1.25rem}
li{margin:.3rem 0}
a{color:var(--accent);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover,a:focus-visible{color:var(--accent-hover)}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
::selection{background:var(--accent-soft)}
.muted{color:var(--fg-muted)}
.lead{font-size:1.125rem;color:var(--fg-muted);max-width:70ch}
.eyebrow{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--fg-muted);font-weight:600;margin:0 0 8px}
code,pre{font-family:var(--font-mono)}
code{font-size:.8125rem;background:var(--code-bg);color:var(--code-fg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:.05rem .35rem;overflow-wrap:anywhere}
pre{margin:0;font-size:.8125rem;line-height:1.6;background:var(--code-bg);color:var(--code-fg);border:1px solid var(--border);border-radius:var(--radius);padding:16px;overflow:auto}
pre code{background:none;border:0;padding:0;font-size:inherit;overflow-wrap:normal}
.skip-link{position:absolute;left:12px;top:-100px;z-index:100;background:var(--primary-bg);color:var(--primary-fg);padding:8px 14px;border-radius:var(--radius);font-weight:600;text-decoration:none}
.skip-link:focus{top:12px;color:var(--primary-fg)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* layout */
.band + .band{border-top:1px solid var(--border)}
.container{width:100%;max-width:calc(var(--container) + 48px);margin:0 auto;padding:56px 24px}
@media (max-width:639px){.container{padding:40px 16px}}
.cluster{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;align-items:center;padding-top:80px;padding-bottom:64px}
.hero-mark{display:none}
@media (min-width:860px){.hero{grid-template-columns:minmax(0,1fr) 220px}.hero-mark{display:block;width:220px;height:auto}}
.split{display:grid;grid-template-columns:minmax(0,1fr);gap:32px}
@media (min-width:900px){.split{grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:start}}
.steps li{margin:.6rem 0}
.note{margin-top:12px}

/* header and footer */
.site-header{position:sticky;top:0;z-index:50;height:var(--header-h);background:var(--bg);border-bottom:1px solid var(--border)}
.site-header .bar{display:flex;align-items:center;gap:16px;height:100%;max-width:calc(var(--container) + 48px);margin:0 auto;padding:0 24px}
@media (max-width:639px){.site-header .bar{padding:0 16px}}
.brand{display:inline-flex;align-items:center;gap:8px;color:var(--fg);font-weight:650;letter-spacing:-.01em;text-decoration:none;white-space:nowrap}
.brand:hover,.brand:focus-visible{color:var(--fg)}
.logo-mark{display:block;flex:none;shape-rendering:crispEdges}
.site-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.site-nav a:not(.button){color:var(--fg-muted);text-decoration:none;padding:6px 10px;border-radius:var(--radius-sm);font-size:.875rem;font-weight:500}
.site-nav a:not(.button):hover{color:var(--fg);background:var(--surface-hover)}
@media (max-width:639px){.site-nav a:not(.button){display:none}}
.site-footer{flex:none;border-top:1px solid var(--border);color:var(--fg-muted);font-size:.8125rem}
.site-footer .bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;max-width:calc(var(--container) + 48px);margin:0 auto;padding:24px}
@media (max-width:639px){.site-footer .bar{padding:24px 16px}}
.site-footer nav{display:flex;flex-wrap:wrap;gap:4px 16px}
.site-footer a{color:var(--fg-muted);text-decoration:none}
.site-footer a:hover,.site-footer a:focus-visible{color:var(--fg);text-decoration:underline}

/* buttons */
.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:6px 20px;border:1px solid transparent;border-radius:var(--radius);background:var(--primary-bg);color:var(--primary-fg);font:600 .9375rem/1.25 var(--font-sans);text-decoration:none;transition:background 120ms,color 120ms}
.button:hover,.button:focus-visible{background:var(--primary-hover);color:var(--primary-fg)}
.button.secondary{background:transparent;color:var(--fg);border-color:var(--border-strong)}
.button.secondary:hover,.button.secondary:focus-visible{background:var(--surface-hover);color:var(--fg)}
.button.small{min-height:32px;padding:0 12px;font-size:.875rem}

/* cards */
.grid{list-style:none;margin:24px 0 0;padding:0;display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}
.grid>li{margin:0;display:flex}
.card{display:flex;flex-direction:column;align-items:flex-start;gap:6px;width:100%;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm);color:inherit;text-decoration:none;transition:border-color 120ms,background 120ms}
a.card:hover,a.card:focus-visible{border-color:var(--border-strong);background:var(--surface-hover);color:inherit}
.card-title{font-weight:650;font-size:1rem;color:var(--fg)}
.card-text{color:var(--fg-muted);font-size:.875rem}
.card h3{margin:0}
.monogram{display:grid;place-items:center;width:44px;height:44px;margin-bottom:6px;border-radius:var(--radius);background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:1.125rem}
.badge{display:inline-flex;align-items:center;gap:6px;padding:2px 8px;border-radius:var(--radius-pill);font-size:.72rem;font-weight:600;line-height:1.5;white-space:nowrap;background:var(--info-bg);color:var(--info)}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;flex:none}