:root{--orange: #fd9129;--bg: #ffffff;--surface: #f5f5f0;--text: #1a1a1a;--text-mid: #444;--text-muted: #888;--border: #eeeeee;--code-bg: #f0ede8;--chat-bg: #36393f;--chat-text: #dcddde;--nav-bg: #ffffff}[data-theme=dark]{--bg: #111111;--surface: #1e1e1e;--text: #e8e8e4;--text-mid: #aaaaaa;--text-muted: #666666;--border: #2a2a2a;--code-bg: #1a1a1a;--chat-bg: #1e2124;--chat-text: #c8c9ca;--nav-bg: #111111}*{margin:0;padding:0;box-sizing:border-box}body{font-family:"Source Serif 4",Georgia,serif;background:var(--bg);color:var(--text);font-size:18px;line-height:1.75;transition:background .25s,color .25s}nav{display:flex;justify-content:space-between;align-items:center;padding:20px 40px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--nav-bg);z-index:100;transition:background .25s,border-color .25s}nav img{height:36px}.nav-right{display:flex;align-items:center;gap:32px}nav ul{list-style:none;display:flex;gap:32px}nav a{text-decoration:none;color:var(--text-mid);font-family:Space Mono,monospace;font-size:13px;letter-spacing:.05em;transition:color .2s}nav a:hover{color:var(--orange)}.toggle{background:none;border:1px solid var(--border);border-radius:20px;padding:5px 10px;cursor:pointer;font-family:Space Mono,monospace;font-size:12px;color:var(--text-mid);transition:all .2s;display:flex;align-items:center;gap:6px}.toggle:hover{border-color:var(--orange);color:var(--orange)}.hero{max-width:760px;margin:60px auto 0;padding:0 40px}.hero-meta{font-family:Space Mono,monospace;font-size:12px;color:var(--orange);letter-spacing:.1em;text-transform:uppercase;margin-bottom:16px}.hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:600;line-height:1.2;letter-spacing:-.02em;margin-bottom:20px}.hero .subtitle{font-size:1.15rem;color:var(--text-mid);font-style:italic;margin-bottom:40px;padding-bottom:40px;border-bottom:1px solid var(--border)}article{max-width:760px;margin:0 auto;padding:0 40px 80px}article h2{font-size:1.6rem;font-weight:600;margin:52px 0 16px;letter-spacing:-.01em}article h4{font-family:Space Mono,monospace;font-size:.85rem;color:var(--orange);text-transform:uppercase;letter-spacing:.1em;margin:40px 0 12px}article p{margin-bottom:20px;color:var(--text)}article ul,article ol{margin:0 0 20px 24px}article li{margin-bottom:8px}article a{color:var(--orange);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s}article a:hover{border-color:var(--orange)}blockquote{border-left:3px solid var(--orange);padding:16px 28px;margin:32px 0;background:var(--surface);font-style:italic;color:var(--text-mid);font-size:1.1rem;line-height:1.7}pre{background:var(--code-bg);border-left:3px solid var(--orange);padding:20px 24px;margin:24px 0;overflow-x:auto;font-family:Space Mono,monospace;font-size:13px;line-height:1.6}code{font-family:Space Mono,monospace;font-size:14px;background:var(--code-bg);padding:2px 6px;border-radius:3px}pre code{background:none;padding:0}.chat-demo{background:var(--chat-bg);border-radius:8px;padding:24px;margin:32px 0;font-family:Space Mono,monospace;font-size:13px;transition:background .25s}.chat-label{font-family:Space Mono,monospace;font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:16px}.chat-message{display:flex;gap:12px;margin-bottom:16px}.chat-message:last-child{margin-bottom:0}.avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex-shrink:0;color:#fff}.avatar.michael{background:#5865f2}.avatar.jordan{background:#57f287;color:#1a1a1a}.avatar.alex{background:#fd9129}.avatar.autumn{background:#eb459e}.chat-name{font-size:11px;font-weight:700;margin-bottom:3px}.chat-name.michael{color:#5865f2}.chat-name.jordan{color:#57f287}.chat-name.alex{color:#fd9129}.chat-name.autumn{color:#eb459e}.chat-text{color:var(--chat-text);line-height:1.5}.bot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:28px 0}.bot-card{border:1px solid var(--border);border-top:3px solid var(--orange);padding:20px;border-radius:2px;background:var(--surface);transition:background .25s,border-color .25s}.bot-card h5{font-family:Space Mono,monospace;font-size:13px;font-weight:700;margin-bottom:8px;color:var(--text)}.bot-card p{font-size:14px;color:var(--text-mid);margin:0;line-height:1.5}.bot-card .tag{display:inline-block;font-family:Space Mono,monospace;font-size:10px;background:var(--code-bg);padding:2px 8px;border-radius:2px;margin-bottom:8px;color:var(--text-mid)}.prereq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:20px 0 28px}.prereq-item{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text-mid)}.prereq-item .dot{width:6px;height:6px;border-radius:50%;background:var(--orange);flex-shrink:0;margin-top:8px}.cost-note{background:var(--surface);border:1px solid var(--border);border-radius:4px;padding:16px 20px;margin:24px 0;font-family:Space Mono,monospace;font-size:13px;color:var(--text-mid);line-height:1.6}.cost-note strong{color:var(--orange)}.article-footer{max-width:760px;margin:0 auto;padding:40px 40px 60px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}.article-footer a{font-family:Space Mono,monospace;font-size:13px;color:var(--orange);text-decoration:none}footer{background:var(--surface);color:var(--text-muted);text-align:center;padding:32px;font-family:Space Mono,monospace;font-size:12px;border-top:1px solid var(--border);transition:background .25s}footer a{color:var(--text-muted);text-decoration:none}footer a:hover{color:var(--orange)}@media(max-width:640px){nav{padding:16px 20px}.hero,article{padding-left:20px;padding-right:20px}.bot-grid,.prereq-grid{grid-template-columns:1fr}nav ul{gap:16px}}