:root{--bg:#070b14;--bg2:#0c1220;--card:#111a2c;--card2:#16213a;--line:#22304d;--ink:#eaf0fb;--mut:#9aa8c3;--acc:#5ee6c4;--acc2:#6aa8ff;--acc3:#b48cff;--warn:#ffcf6b;--code:#0a101d;--r:16px}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 Inter,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
body:before{content:"";position:fixed;inset:0;z-index:-1;background:radial-gradient(900px 500px at 12% -5%,rgba(94,230,196,.13),transparent 60%),radial-gradient(900px 600px at 95% 5%,rgba(106,168,255,.14),transparent 60%),radial-gradient(700px 500px at 50% 110%,rgba(180,140,255,.10),transparent 60%)}
a{color:var(--acc);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
header.top{position:sticky;top:0;z-index:20;backdrop-filter:blur(14px);background:rgba(7,11,20,.78);border-bottom:1px solid rgba(34,48,77,.7)}
header.top .wrap{display:flex;align-items:center;gap:22px;height:62px}
.logo{display:flex;align-items:center;gap:10px;font-weight:750;font-size:18px;color:var(--ink);letter-spacing:-.01em}
.logo svg{width:28px;height:28px}.logo:hover{text-decoration:none}
nav.main{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
nav.main a{color:var(--mut);padding:7px 12px;border-radius:9px;font-size:14.5px}nav.main a:hover{color:var(--ink);background:var(--card);text-decoration:none}
.btn{display:inline-flex;align-items:center;gap:9px;padding:12px 20px;border-radius:12px;font-weight:650;font-size:15.5px;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer;transition:transform .12s,box-shadow .12s,border-color .12s;font-family:inherit}
.btn:hover{transform:translateY(-1px);text-decoration:none;border-color:#3a4f7c}
.btn.pri{background:linear-gradient(135deg,var(--acc),var(--acc2));color:#04121a;border:0;box-shadow:0 8px 28px rgba(94,230,196,.22)}
.btn.sm{padding:7px 12px;font-size:13.5px;border-radius:9px}
.btn svg{width:18px;height:18px}
.hero{padding:54px 0 34px}
.hero .grid{display:grid;grid-template-columns:1.02fr .98fr;gap:38px;align-items:start}
.pill{display:inline-flex;gap:8px;align-items:center;padding:6px 12px;border:1px solid var(--line);border-radius:99px;font-size:13.5px;color:var(--mut);background:rgba(17,26,44,.7)}
.pill i{width:8px;height:8px;border-radius:50%;background:var(--acc);box-shadow:0 0 0 4px rgba(94,230,196,.18)}
h1{font-size:clamp(34px,4.6vw,54px);line-height:1.08;letter-spacing:-.03em;margin:18px 0 16px;font-weight:800}
h1 em{font-style:normal;background:linear-gradient(120deg,var(--acc),var(--acc2) 55%,var(--acc3));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:18.5px;color:#c6d1e6;max-width:60ch;margin:0 0 22px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 22px}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:6px}
.fact{border:1px solid var(--line);border-radius:14px;padding:13px 14px;background:rgba(17,26,44,.6)}
.fact b{display:block;font-size:19px;letter-spacing:-.01em}.fact span{font-size:13px;color:var(--mut)}
.endpoint{display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:var(--code);border-radius:12px;padding:10px 12px;font:14px/1.4 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;margin:0 0 18px;overflow:auto}
.endpoint code{white-space:nowrap;color:#d7e3ff}.endpoint .tag{color:var(--acc);font-weight:700}
.chat{border:1px solid var(--line);border-radius:20px;background:linear-gradient(180deg,var(--card),var(--bg2));box-shadow:0 30px 80px rgba(0,0,0,.45);overflow:hidden}
.chat .bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);font-size:13.5px;color:var(--mut)}
.chat .bar b{color:var(--ink);font-weight:650}.chat .bar .dot{width:8px;height:8px;border-radius:50%;background:var(--acc)}
.chat .bar span:last-child{margin-left:auto}
#chat-log{height:372px;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:10px}
.msg{max-width:88%;padding:10px 14px;border-radius:14px;font-size:15px;line-height:1.55;word-wrap:break-word;overflow-wrap:anywhere}
.msg.user{align-self:flex-end;background:linear-gradient(135deg,#1f6f8f,#2a57b8);border-bottom-right-radius:5px}
.msg.bot{align-self:flex-start;background:var(--card2);border:1px solid var(--line);border-bottom-left-radius:5px}
.msg.typing:after{content:"▍";animation:blink 1s steps(2) infinite;color:var(--acc)}
.msg.err{border-color:#7c3b4a;color:#ffb3c0}
.msg pre{margin:8px 0;padding:10px;background:var(--code);border-radius:9px;overflow:auto;font-size:13px}
.msg code{font:13px ui-monospace,Menlo,Consolas,monospace;background:rgba(0,0,0,.3);padding:1px 5px;border-radius:5px}.msg pre code{background:none;padding:0}
@keyframes blink{50%{opacity:0}}
.chips{display:flex;gap:8px;flex-wrap:wrap;padding:0 16px 12px}
.chips button{border:1px solid var(--line);background:transparent;color:var(--mut);border-radius:99px;padding:6px 12px;font:13px inherit;font-family:inherit;cursor:pointer}
.chips button:hover{color:var(--ink);border-color:#3a4f7c}
#chat-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:rgba(7,11,20,.5)}
#chat-input{flex:1;resize:none;height:46px;padding:11px 13px;border-radius:12px;border:1px solid var(--line);background:var(--code);color:var(--ink);font:15px inherit;font-family:inherit;outline:none}
#chat-input:focus{border-color:var(--acc2)}
#chat-send{padding:0 18px;border-radius:12px;border:0;background:linear-gradient(135deg,var(--acc),var(--acc2));color:#04121a;font-weight:700;cursor:pointer;font-family:inherit;font-size:15px}
#chat-send:disabled{opacity:.5;cursor:wait}
section{padding:46px 0}
section.alt{background:linear-gradient(180deg,rgba(12,18,32,.75),rgba(12,18,32,.35));border-top:1px solid rgba(34,48,77,.6);border-bottom:1px solid rgba(34,48,77,.6)}
h2{font-size:clamp(26px,3vw,36px);letter-spacing:-.02em;line-height:1.18;margin:0 0 12px;font-weight:780}
h3{font-size:19px;letter-spacing:-.01em;margin:0 0 8px;font-weight:700}
.sub{color:var(--mut);max-width:72ch;margin:0 0 26px;font-size:17px}
p{margin:0 0 14px}.prose p,.prose li{color:#c9d3e7}.prose{max-width:78ch}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cards.two{grid-template-columns:repeat(2,1fr)}
.card{border:1px solid var(--line);border-radius:var(--r);padding:20px;background:rgba(17,26,44,.72)}
.card p{color:var(--mut);margin:0;font-size:15.5px}
.card .ic{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;margin-bottom:12px;background:linear-gradient(135deg,rgba(94,230,196,.18),rgba(106,168,255,.18));border:1px solid var(--line)}
.card .ic svg{width:20px;height:20px;stroke:var(--acc)}
.faq{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.faq .q{border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;background:rgba(17,26,44,.72)}
.faq .q h3{font-size:17.5px;margin-bottom:6px}.faq .q p{margin:0;color:#c0cbe0;font-size:15.5px}
.codebox{border:1px solid var(--line);border-radius:var(--r);background:var(--code);overflow:hidden}
.tabs{display:flex;gap:2px;padding:8px 8px 0;border-bottom:1px solid var(--line);background:var(--card);overflow:auto}
.tabs button{border:0;background:transparent;color:var(--mut);padding:9px 14px;border-radius:9px 9px 0 0;font:14px inherit;font-family:inherit;cursor:pointer;white-space:nowrap}
.tabs button.on{background:var(--code);color:var(--ink);font-weight:650}
.tabpane{position:relative}
pre{margin:0;padding:18px;overflow:auto;font:13.8px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#d7e3ff;tab-size:2}
pre .c{color:#6f819f}pre .s{color:#a5f0c5}pre .k{color:#9cc2ff}
.copy{position:absolute;top:10px;right:10px}
:not(pre)>code{font:.9em ui-monospace,Menlo,Consolas,monospace;background:rgba(106,168,255,.12);border:1px solid rgba(106,168,255,.18);padding:1px 6px;border-radius:6px;color:#cfe0ff}
.promptbox{display:grid;grid-template-columns:1fr 1.1fr;gap:26px;align-items:start}
.promptbox pre{max-height:360px;font-size:13px;white-space:pre-wrap}
.steps{counter-reset:s;list-style:none;padding:0;margin:0 0 20px}
.steps li{counter-increment:s;position:relative;padding:0 0 14px 44px;color:#c9d3e7}
.steps li:before{content:counter(s);position:absolute;left:0;top:-2px;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;font-weight:750;font-size:14px;background:linear-gradient(135deg,rgba(94,230,196,.2),rgba(106,168,255,.2));border:1px solid var(--line);color:var(--acc)}
table{width:100%;border-collapse:collapse;font-size:15px}
.tw{border:1px solid var(--line);border-radius:var(--r);overflow:auto;background:rgba(17,26,44,.72)}
th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:13px;color:var(--mut);font-weight:650;text-transform:uppercase;letter-spacing:.04em;background:rgba(12,18,32,.8)}
tr:last-child td{border-bottom:0}td.y{color:var(--acc);font-weight:650}
.note{border-left:3px solid var(--warn);padding:12px 16px;background:rgba(255,207,107,.07);border-radius:0 12px 12px 0;color:#e6dcc1;font-size:15px;margin:18px 0 0}
footer{padding:34px 0 46px;color:var(--mut);font-size:14.5px;border-top:1px solid rgba(34,48,77,.7)}
footer .wrap{display:flex;gap:18px;flex-wrap:wrap;justify-content:space-between}
footer a{color:var(--mut)}
.doc{display:grid;grid-template-columns:230px 1fr;gap:40px;padding:38px 0 60px}
.doc aside{position:sticky;top:84px;align-self:start;font-size:14.5px}
.doc aside a{display:block;color:var(--mut);padding:5px 0}.doc aside a:hover{color:var(--ink);text-decoration:none}
.doc h1{font-size:clamp(30px,3.6vw,42px);margin-top:0}.doc h2{margin-top:38px;font-size:27px}.doc h3{margin-top:24px}
.doc .codebox{margin:14px 0 18px}.doc .tw{margin:14px 0 18px}
@media(max-width:940px){.hero .grid,.promptbox,.doc{grid-template-columns:1fr}.cards,.faq,.cards.two{grid-template-columns:1fr}.facts{grid-template-columns:1fr 1fr 1fr}nav.main a.h{display:none}.doc aside{position:static}#chat-log{height:320px}.hero{padding-top:34px}}
@media(max-width:520px){.facts{grid-template-columns:1fr}nav.main{display:none}body{font-size:15.5px}}