:root{--bg:#fff;--bg-alt:#f5f5f7;--bg-dark:#0b0f14;--ink:#1d1d1f;--ink-2:#3d3d42;--muted:#6e6e73;--muted-2:#6e6e73;--line:#e5e5e7;--accent:#06c;--accent-on-dark:#2997ff;--on-dark:#f5f5f7;--on-dark-muted:#c8c8cc;--chip-bg:#0000000f;--chip-bg-dark:#ffffff1f;--shipped:#097357;--on-accent:#000;--nav-bg:#fafafceb;--font:-apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;--mono:ui-monospace, "SF Mono", Menlo, Consolas, monospace;--fs-hero:clamp(2.5rem, 7vw, 4.5rem);--fs-h1:clamp(2rem, 5vw, 3rem);--fs-h2:clamp(1.5rem, 3.5vw, 2rem);--fs-h3:1.25rem;--fs-body:1rem;--fs-small:.875rem;--fs-tiny:.75rem;--radius:8px;--radius-pill:999px;--wrap:1024px;--gap:12px;--shadow-cover:0 10px 24px #00000038;--shadow-book:0 24px 50px #00000047, 0 2px 6px #00000026;--mail-bg:#2c2c2e;--hero-glow:#0b1f2a;--black:#000;--hero-kicker:#8ee2c9;--shadow-hero:0 30px 60px #0009;--tile-courses:linear-gradient(160deg, #1a1f2e 0%, #0d1018 100%);--tile-agents:linear-gradient(160deg, #eef3ff 0%, #dfe8ff 100%);--tile-robotics:linear-gradient(160deg, #0f0f10 0%, #26262a 100%)}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--ink);font-family:var(--font);font-size:var(--fs-body);-webkit-font-smoothing:antialiased;margin:0;line-height:1.5}h1,h2,h3{letter-spacing:-.02em;text-wrap:balance;margin:0;line-height:1.1}p{margin:0}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}img{max-width:100%;display:block}ul{margin:0;padding:0;list-style:none}.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.skip-link{background:var(--ink);color:var(--on-dark);border-radius:4px;padding:8px 12px;position:absolute;top:8px;left:-999px}.skip-link:focus{z-index:10;left:8px}.kicker{font-size:var(--fs-tiny);letter-spacing:.08em;text-transform:uppercase;color:var(--muted-2)}.kicker--shipped{color:var(--shipped)}.btn{border-radius:var(--radius-pill);font-weight:500;font-size:var(--fs-small);padding:10px 20px;line-height:1.2;display:inline-block}.btn-primary{background:var(--ink);color:var(--on-dark)}.btn-primary:hover{opacity:.9;text-decoration:none}.btn-on-dark{background:var(--accent-on-dark);color:var(--on-accent)}.btn-disabled{background:var(--bg-alt);color:var(--muted);cursor:default}.link{font-size:var(--fs-small)}.link:after{content:" ›"}.chip{letter-spacing:.08em;text-transform:uppercase;border-radius:var(--radius-pill);background:var(--chip-bg);color:var(--muted);padding:3px 8px;font-size:.6875rem;display:inline-block}.chip--shipped{color:var(--shipped)}.chip--on-dark{background:var(--chip-bg-dark);color:var(--on-dark-muted)}.band{text-align:center;background:var(--bg-alt);padding:64px 20px}.band h2{font-size:var(--fs-h2)}.band p{color:var(--muted);margin-top:8px}.tiles{gap:var(--gap);padding:var(--gap);max-width:calc(var(--wrap) + 2 * var(--gap));grid-template-columns:1fr 1fr;margin:0 auto;display:grid}.tile{background:var(--bg-alt);border-radius:var(--radius);text-align:center;min-height:260px;padding:32px 24px;position:relative;overflow:hidden}.tile h3{font-size:var(--fs-h3)}.tile .sub{color:var(--muted);font-size:var(--fs-small);margin-top:6px}.tile .link{margin-top:12px;display:inline-block}.tile .chip{position:absolute;top:14px;left:16px}.tile--dark{background:var(--ink);color:var(--on-dark)}.tile--dark .sub,.tile--dark .kicker{color:var(--on-dark-muted)}.tile--dark a{color:var(--accent-on-dark)}.tile--wide{grid-column:1/-1;min-height:0;padding:40px 24px}@media (width<=640px){.tiles{grid-template-columns:1fr}}.prose{max-width:68ch;color:var(--ink-2);margin:0 auto;padding:48px 20px 80px;font-size:1.0625rem;line-height:1.65}.prose h1{font-size:var(--fs-h1);color:var(--ink);margin-bottom:24px}.prose h2{font-size:var(--fs-h2);color:var(--ink);margin:40px 0 12px}.prose p{margin:0 0 1em}.prose hr{border:0;border-top:1px solid var(--line);margin:32px 0}.prose em{font-style:italic}.nav[data-astro-cid-wpvy4v7s]{z-index:5;background:var(--nav-bg);backdrop-filter:saturate(180%)blur(12px);border-bottom:1px solid var(--line);position:sticky;top:0}.nav__inner[data-astro-cid-wpvy4v7s]{align-items:center;gap:28px;height:48px;display:flex}.nav__logo[data-astro-cid-wpvy4v7s]{color:var(--ink);letter-spacing:-.01em;font-weight:600}.nav__links[data-astro-cid-wpvy4v7s]{gap:22px;margin-left:auto;display:flex}.nav__links[data-astro-cid-wpvy4v7s] a[data-astro-cid-wpvy4v7s]{color:var(--ink-2);font-size:var(--fs-small)}.nav__links[data-astro-cid-wpvy4v7s] a[data-astro-cid-wpvy4v7s][aria-current=page]{color:var(--ink);font-weight:500}.footer[data-astro-cid-jo6i4kqk]{background:var(--bg-alt);border-top:1px solid var(--line);font-size:var(--fs-tiny);padding:40px 0 28px}.footer__cols[data-astro-cid-jo6i4kqk]{grid-template-columns:repeat(5,1fr);gap:20px;display:grid}.footer__h[data-astro-cid-jo6i4kqk]{font-size:var(--fs-tiny);color:var(--ink);letter-spacing:0;margin-bottom:8px;font-weight:600}.footer[data-astro-cid-jo6i4kqk] li[data-astro-cid-jo6i4kqk]{margin-bottom:0}.footer[data-astro-cid-jo6i4kqk] li[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]{color:var(--muted);padding:5px 0;display:inline-block}.footer__legal[data-astro-cid-jo6i4kqk]{border-top:1px solid var(--line);color:var(--muted-2);flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:28px;padding-top:14px;display:flex}.footer__legal[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]{color:var(--muted-2)}@media (width<=640px){.footer__cols[data-astro-cid-jo6i4kqk]{grid-template-columns:repeat(2,1fr)}}