@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Space+Grotesk:wght@500;700&display=swap');
:root{--mono:"JetBrains Mono",ui-monospace,monospace;--display:"Space Grotesk",system-ui,sans-serif;--r-xs:4px;--r-sm:7px;--r-md:11px;--r-lg:16px}[data-theme="light"]{--bg:#F1ECDE;--surface:#E8E1CD;--ink:#1B1A15;--dim:#635F4E;--line:rgba(27,26,21,.18);--accent:#245F96;--soft:rgba(36,95,150,.10);--shadow:0 1px 2px rgba(72,62,32,.10),0 10px 26px -16px rgba(72,62,32,.30);--grain:.055;--mix:multiply;--logo-r:#D63A3A;--logo-g:#1F9D52;--logo-b:#2E7FD9}[data-theme="dark"]{--bg:#0D0D12;--surface:#15151D;--ink:#EAE7DC;--dim:#8A8D96;--line:rgba(234,231,220,.14);--accent:#6BA8DE;--soft:rgba(107,168,222,.10);--shadow:0 1px 2px rgba(4,6,14,.60),0 10px 26px -16px rgba(4,8,22,.85);--grain:.05;--mix:screen;--logo-r:#FF5A5A;--logo-g:#3ECF6A;--logo-b:#4DA6FF}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.7 var(--mono);transition:background .25s,color .25s}body:after{content:"";position:fixed;inset:0;z-index:60;pointer-events:none;opacity:var(--grain);mix-blend-mode:var(--mix);background-size:140px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E")}a{color:var(--accent)}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:var(--r-xs)}.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;background:var(--bg);padding:8px 12px;z-index:100}.site-header{border-bottom:1px solid var(--line);padding:13px 20px}.nav{max-width:1120px;margin:auto;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;white-space:nowrap}.logo{width:26px;height:26px}.host{font-size:13px}.host .at,.crumbs span,.eyebrow,.arrow{color:var(--accent)}.nav-links{display:flex;gap:18px;margin-left:auto}.nav-links a{color:var(--dim);text-decoration:none;font-size:12.5px}.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--accent)}.theme{font:13px var(--mono);color:var(--ink);background:none;border:1px solid var(--line);border-radius:var(--r-sm);padding:5px 10px;cursor:pointer}.theme:hover{border-color:var(--accent);background:var(--soft)}main{max-width:1120px;margin:auto;padding:56px 20px 90px}.crumbs{font-size:12px;color:var(--dim);margin-bottom:36px}.crumbs a{color:var(--dim);text-decoration:none}.crumbs a:hover{color:var(--accent)}.eyebrow{font-size:12px;letter-spacing:.18em;text-transform:uppercase;margin-bottom:14px}h1,h2,h3{font-family:var(--display);margin:0;color:var(--ink);text-wrap:balance}h1{font-size:clamp(40px,7vw,72px);line-height:1.02;letter-spacing:-.035em;max-width:15ch}h1 .soft{color:var(--dim)}.lead{font-size:clamp(17px,2vw,20px);color:var(--dim);max-width:68ch;margin:24px 0 0}.lead strong{color:var(--ink);font-weight:500}.answer{margin-top:32px;border-left:3px solid var(--accent);background:var(--soft);padding:18px 20px;max-width:78ch}.answer strong{font-family:var(--display);font-weight:500}.section{margin-top:72px}.section-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,520px);gap:28px;align-items:end;margin-bottom:24px}.section h2{font-size:clamp(28px,4vw,42px);line-height:1.08;letter-spacing:-.025em}.section-intro{color:var(--dim);margin:0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.card{position:relative;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;background:linear-gradient(145deg,var(--soft),transparent 55%);box-shadow:var(--shadow);color:inherit;text-decoration:none;min-height:270px;display:flex;flex-direction:column;transition:transform .18s,border-color .18s}.card:hover{transform:translateY(-3px);border-color:var(--accent)}.card .num{font-size:11px;color:var(--accent);letter-spacing:.14em}.card h2,.card h3{font-size:24px;line-height:1.16;margin:28px 0 10px}.card p{color:var(--dim);margin:0}.card .go{margin-top:auto;padding-top:22px;color:var(--accent);font-size:13px}.topic-grid,.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.topic,.qa{border:1px solid var(--line);border-radius:var(--r-md);padding:20px;background:var(--surface)}.topic h3,.qa h3{font-size:18px;line-height:1.25;margin-bottom:8px}.topic p,.qa p{color:var(--dim);margin:0}.question-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}.question-list li{border-bottom:1px solid var(--line);padding:16px 4px;display:grid;grid-template-columns:32px 1fr;gap:8px}.question-list b{color:var(--accent);font-weight:500}.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;counter-reset:item}.principle{border-top:2px solid var(--accent);padding:18px 0}.principle:before{counter-increment:item;content:"0" counter(item);font-size:11px;color:var(--accent)}.principle h3{font-size:18px;margin:10px 0 6px}.principle p{margin:0;color:var(--dim)}.cta{margin-top:72px;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;background:radial-gradient(100% 160% at 0 0,var(--soft),transparent 65%)}.cta h2{font-size:28px}.cta p{color:var(--dim);max-width:70ch}.cta a{display:inline-block;border:1px solid var(--accent);border-radius:999px;padding:7px 14px;text-decoration:none;margin-top:6px}.meta-note{font-size:12px;color:var(--dim);margin-top:30px}.site-footer{border-top:1px solid var(--line);padding:28px 20px}.foot{max-width:1120px;margin:auto;display:flex;justify-content:space-between;gap:20px;color:var(--dim);font-size:12px}.foot a{color:var(--dim)}@media(max-width:820px){.nav-links{display:none}.grid,.principles{grid-template-columns:1fr}.topic-grid,.qa-grid{grid-template-columns:1fr}.section-head{grid-template-columns:1fr}.card{min-height:220px}main{padding-top:38px}.foot{flex-direction:column}}@media(max-width:500px){.host{font-size:0}.host b{font-size:12px}.host b:first-child:after{content:"@aiworking"}.nav{gap:12px}.theme{margin-left:auto}h1{font-size:42px}.section{margin-top:56px}.card,.topic,.qa,.cta{padding:18px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}