:root{
  --paper:#f7f2e8;--paper-2:#efe7d7;--card:#fffdf8;--ink:#1d1a16;--ink-2:#4a443b;--ink-3:#7a7266;
  --line:#e2d8c4;--accent:#d9462b;--accent-ink:#fff;--accent-soft:#f6ddd3;--ok:#2f7d4f;
  --code-bg:#1f1c18;--code-ink:#f3ecdf;--shadow:0 1px 2px rgba(40,30,15,.06),0 8px 24px rgba(40,30,15,.06);
  --serif:"Fraunces",Georgia,serif;--sans:"Geist",ui-sans-serif,system-ui,-apple-system,sans-serif;--mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --paper:#16140f;--paper-2:#1e1b15;--card:#221f19;--ink:#f3ecdf;--ink-2:#cfc6b6;--ink-3:#9d9485;
  --line:#35302666;--accent:#ef6a4d;--accent-soft:#3a2119;--code-bg:#0f0d0a;--code-ink:#f3ecdf;--shadow:none;color-scheme:dark;
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration-color:color-mix(in oklab,var(--accent) 55%,transparent);text-underline-offset:3px}
a:hover{color:var(--accent)}
img,video{max-width:100%;height:auto}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
header.site{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0}
.logo{font:600 21px/1 var(--serif);text-decoration:none;display:flex;align-items:center;gap:10px}
.logo .dot{width:28px;height:28px;border-radius:9px;background:var(--accent);display:grid;place-items:center;color:#fff}
nav.top{display:flex;gap:20px;font-size:15px;color:var(--ink-2);flex-wrap:wrap}
nav.top a{text-decoration:none}
h1,h2,h3{font-family:var(--serif);font-weight:560;letter-spacing:-.01em;line-height:1.12;margin:0 0 .4em}
h1{font-size:clamp(40px,6.4vw,76px);font-variation-settings:"opsz" 144}
h2{font-size:clamp(28px,3.6vw,42px);margin-top:0}
h3{font-size:22px}
p{margin:0 0 1em}
.lede{font-size:clamp(18px,2vw,21px);color:var(--ink-2);max-width:640px}
.muted{color:var(--ink-3)}
.hero{padding-top:56px;padding-bottom:24px}
.hero h1 em{font-style:italic;color:var(--accent)}
section{padding:56px 0}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:var(--paper);border:0;border-radius:999px;padding:12px 20px;font:600 15px var(--sans);text-decoration:none;cursor:pointer}
.btn:hover{color:var(--paper);opacity:.9}
.btn.accent{background:var(--accent);color:var(--accent-ink)}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line)}
.card{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}
/* agent picker */
.picker{display:grid;grid-template-columns:250px 1fr;gap:0;overflow:hidden;margin-top:26px}
.picker .list{border-right:1px solid var(--line);padding:10px;max-height:560px;overflow:auto;background:var(--paper-2)}
.picker .list button{display:block;width:100%;text-align:left;border:0;background:none;padding:9px 12px;border-radius:11px;font:500 15px var(--sans);color:var(--ink-2);cursor:pointer}
.picker .list button[aria-selected=true]{background:var(--card);color:var(--ink);box-shadow:var(--shadow)}
.picker .list .sep{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);padding:12px 12px 4px}
.picker .panel{padding:24px 26px;min-width:0}
.picker .panel[hidden]{display:none}
.code{position:relative;background:var(--code-bg);color:var(--code-ink);border-radius:14px;padding:14px 16px;margin:6px 0 14px;font:14px/1.55 var(--mono);white-space:pre-wrap;word-break:break-word}
.code button.copy{position:absolute;top:8px;right:8px;background:#ffffff1a;color:var(--code-ink);border:0;border-radius:8px;padding:5px 10px;font:600 12px var(--sans);cursor:pointer}
.code button.copy.done{background:var(--ok)}
@media (max-width:760px){.picker{grid-template-columns:1fr}.picker .list{display:flex;gap:6px;overflow-x:auto;border-right:0;border-bottom:1px solid var(--line);max-height:none}.picker .list button{white-space:nowrap;width:auto}.picker .list .sep{display:none}}
/* demos */
.demos{display:grid;gap:22px}
.demo{display:grid;grid-template-columns:1fr 1fr;overflow:hidden}
.demo .chat{padding:22px;border-right:1px solid var(--line)}
.demo .phone{padding:22px;background:var(--paper-2)}
.demo .label{font:600 12px var(--sans);letter-spacing:.07em;text-transform:uppercase;color:var(--ink-3);margin-bottom:10px;display:flex;gap:8px;align-items:center}
.bubble{border-radius:18px;padding:10px 14px;margin:0 0 10px;max-width:92%;font-size:15.5px;line-height:1.45}
.bubble.user{background:var(--ink);color:var(--paper);margin-left:auto;border-bottom-right-radius:6px}
.bubble.agent{background:var(--paper-2);border-bottom-left-radius:6px}
.tool{font:13px/1.5 var(--mono);color:var(--ink-3);margin:0 0 10px;padding-left:10px;border-left:2px solid var(--accent)}
.line{font-size:15px;margin:0 0 8px;transition:opacity .35s,transform .35s}
.js .line:not(.on){opacity:0;transform:translateY(4px)}
.line b{font-weight:600;color:var(--ink-3);font-size:12px;letter-spacing:.05em;text-transform:uppercase;display:block}
.line.q{background:var(--accent-soft);border-radius:12px;padding:8px 10px}
.result{margin-top:12px;border-radius:14px;background:var(--card);border:1px solid var(--line);padding:12px 14px;font-size:15px}
.live{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block;animation:pulse 1.4s infinite}
@keyframes pulse{50%{opacity:.25}}
@media (prefers-reduced-motion:reduce){.line{opacity:1;transform:none;transition:none}.live{animation:none}}
@media (max-width:760px){.demo{grid-template-columns:1fr}.demo .chat{border-right:0;border-bottom:1px solid var(--line)}}
/* grids */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media (max-width:860px){.grid3,.grid2{grid-template-columns:1fr}}
.step{padding:24px}
.step .n{font:600 14px var(--mono);color:var(--accent)}
.tile{padding:18px 20px;text-decoration:none;display:block}
.tile .p{font-family:var(--serif);font-size:19px;line-height:1.3;margin-bottom:6px}
.tile:hover{border-color:var(--accent)}
.muse{padding:34px}
.muse ul{padding-left:20px;margin:0}
.muse li{margin-bottom:8px}
.price{font-size:20px}
.price strong{font-family:var(--serif);font-size:28px}
details{border-top:1px solid var(--line);padding:14px 0}
details summary{cursor:pointer;font-weight:600;list-style:none}
details summary::after{content:"+";float:right;color:var(--ink-3)}
details[open] summary::after{content:"–"}
footer.site{border-top:1px solid var(--line);padding:36px 0 60px;color:var(--ink-3);font-size:14px}
footer.site .cols{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
footer.site h4{font:600 13px var(--sans);color:var(--ink);margin:0 0 8px}
footer.site a{display:block;text-decoration:none;margin-bottom:4px}
@media (max-width:760px){footer.site .cols{grid-template-columns:1fr 1fr}}
/* article */
article.doc{padding:30px 0 60px}
article.doc h1{font-size:clamp(34px,5vw,54px)}
article.doc .answer{font-size:19px;color:var(--ink-2);border-left:3px solid var(--accent);padding:4px 0 4px 16px;margin:18px 0 26px}
article.doc h2{font-size:30px;margin-top:40px}
article.doc h3{margin-top:28px}
article.doc pre{background:var(--code-bg);color:var(--code-ink);border-radius:14px;padding:14px 16px;overflow:auto;font:14px/1.55 var(--mono)}
article.doc code{font-family:var(--mono);font-size:.9em}
article.doc :not(pre)>code{background:var(--paper-2);padding:1px 6px;border-radius:6px}
article.doc table{border-collapse:collapse;width:100%;display:block;overflow-x:auto;font-size:15px;margin:0 0 1em}
article.doc th,article.doc td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
article.doc blockquote{margin:0 0 1em;padding-left:16px;border-left:3px solid var(--line);color:var(--ink-2)}
.crumbs{font-size:14px;color:var(--ink-3);margin-bottom:10px}
.crumbs a{text-decoration:none}
.say{background:var(--accent-soft);border-radius:16px;padding:14px 18px;font-family:var(--serif);font-size:20px;margin:0 0 24px}
.panel-box{padding:28px;max-width:560px;margin:40px auto}
input[type=email],input[type=text]{width:100%;font:16px var(--sans);padding:12px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--card);color:var(--ink)}
.stack>*+*{margin-top:12px}
.kv{display:grid;grid-template-columns:140px 1fr;gap:6px 12px;font-size:15px}
.kv dt{color:var(--ink-3)}
.kv dd{margin:0}
.notice{background:var(--accent-soft);border-radius:14px;padding:12px 14px}
.okbox{background:color-mix(in oklab,var(--ok) 14%,var(--card));border-radius:14px;padding:14px 16px}