:root{
  --bg:#0d0b14; --bg2:#15121f; --card:#1b1728; --line:#2d2740;
  --text:#ece9f5; --muted:#a39cba; --accent:#9146ff; --accent2:#d97757; --ok:#3ecf8e;
  --grad:linear-gradient(120deg,#9146ff 0%,#d97757 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:"Space Grotesk",sans-serif;line-height:1.15;margin:0}
h2{font-size:clamp(28px,4vw,40px);margin-bottom:12px}
.lead{color:var(--muted);font-size:18px;max-width:640px}
section{padding:88px 0}
.eyebrow{font:500 13px "JetBrains Mono",monospace;color:var(--accent2);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
code,.mono{font-family:"JetBrains Mono",monospace;font-size:.92em}
code{background:#241f35;padding:2px 6px;border-radius:5px}

nav{position:sticky;top:0;z-index:10;background:rgba(13,11,20,.8);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.logo{font:700 18px "Space Grotesk";display:flex;gap:8px;align-items:center;text-decoration:none}
.logo span{width:22px;height:22px;border-radius:6px;background:var(--grad)}
nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0;font-size:14px;color:var(--muted)}
nav ul a{text-decoration:none}nav ul a:hover{color:var(--text)}
.nav-r{display:flex;gap:8px;align-items:center}
#lang{background:var(--card);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:7px 8px;font:500 14px Inter;cursor:pointer}
@media(max-width:860px){nav ul{display:none}}

.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:10px;font-weight:600;text-decoration:none;font-size:15px;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 30px -8px rgba(145,70,255,.6)}
.btn-ghost{border:1px solid var(--line);background:var(--card)}
.btn-sm{padding:8px 14px;font-size:14px}

.hero{padding:80px 0 40px;text-align:center;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-200px 0 auto;height:600px;background:radial-gradient(ellipse at center,rgba(145,70,255,.25),transparent 60%);pointer-events:none}
.badge{display:inline-block;font:500 12px "JetBrains Mono";padding:5px 12px;border:1px solid var(--line);border-radius:99px;color:var(--muted);margin-bottom:22px;background:var(--bg2)}
.hero h1{font-size:clamp(38px,7vw,72px);letter-spacing:-.02em;max-width:900px;margin:0 auto 20px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{margin:0 auto 32px}
.ctas{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-img{margin-top:56px;border-radius:16px;border:1px solid var(--line);overflow:hidden;box-shadow:0 30px 80px -20px rgba(0,0,0,.7)}

.chat{max-width:680px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;text-align:left;font:14px/1.7 "JetBrains Mono",monospace}
.chat p{margin:0 0 10px}
.chat .u{color:var(--accent2)}.chat .c{color:#b892ff}

.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));margin-top:40px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.card .ic{font-size:26px;margin-bottom:10px}
.card h3{font-size:18px;margin-bottom:6px}
.card p{margin:0;color:var(--muted);font-size:15px}

.gallery{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));margin-top:40px}
.gallery figure{margin:0;background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.gallery figcaption{padding:14px 16px;font-size:14px;color:var(--muted)}
.gallery figcaption b{color:var(--text)}

#start{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tabs{display:flex;gap:6px;margin:32px 0 0;flex-wrap:wrap}
.tab{background:transparent;border:1px solid var(--line);color:var(--muted);padding:9px 16px;border-radius:9px;font:600 14px Inter;cursor:pointer}
.tab[aria-selected=true]{background:var(--card);color:var(--text);border-color:var(--accent)}
.panel{display:none;margin-top:18px}
.panel.on{display:block}
.steps{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;gap:12px}
.steps li{counter-increment:s;position:relative;padding:18px 20px 18px 64px;background:var(--card);border:1px solid var(--line);border-radius:12px}
.steps li::before{content:counter(s);position:absolute;left:18px;top:16px;width:30px;height:30px;border-radius:8px;background:var(--grad);display:grid;place-items:center;font:700 15px "Space Grotesk"}
.steps li>b{display:block;margin-bottom:2px}
.steps p{margin:0;color:var(--muted);font-size:15px}
.code{position:relative;margin-top:10px;background:#0a0810;border:1px solid var(--line);border-radius:10px;padding:14px 90px 14px 16px;font:13.5px "JetBrains Mono";overflow-x:auto;white-space:pre}
.copy{position:absolute;right:8px;top:8px;background:var(--card);border:1px solid var(--line);color:var(--muted);border-radius:7px;padding:5px 10px;font:12px Inter;cursor:pointer}
.copy:hover{color:var(--text)}
.note{margin-top:16px;padding:14px 16px;border-left:3px solid var(--accent2);background:rgba(217,119,87,.08);border-radius:0 10px 10px 0;font-size:15px}
.note.warn{border-color:#f5b84b;background:rgba(245,184,75,.08)}
.req{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.req span{font-size:14px;padding:7px 12px;border:1px solid var(--line);border-radius:99px;background:var(--card)}

.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:40px}
.flow>div{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 14px;text-align:center;font-size:14px;color:var(--muted)}
.flow b{display:block;color:var(--text);font-size:15px;margin:6px 0 2px}
.flow .e{font-size:26px}
@media(max-width:800px){.flow{grid-template-columns:1fr 1fr}}

.prompts{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));margin-top:28px}
.prompt{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;font-style:italic}
.prompt small{display:block;font-style:normal;color:var(--muted);margin-bottom:6px;font-size:13px}

details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-top:10px}
summary{cursor:pointer;font-weight:600}
details p,details ul{color:var(--muted);margin:10px 0 0;font-size:15px}

.final{text-align:center}
footer{border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:13px;text-align:center}

section.alt{background:var(--bg2);border-top:1px solid var(--line)}
#start.alt{border-bottom:1px solid var(--line)}
.stats{display:flex;gap:10px;justify-content:center;margin-top:22px}
.stats a{font:500 14px "JetBrains Mono",monospace;color:var(--muted);text-decoration:none;padding:6px 12px;border:1px solid var(--line);border-radius:99px;background:var(--bg2)}
.stats a:hover{color:var(--text)}
.stats b{color:var(--text)}
.gallery video,.gallery img{width:100%;height:auto;display:block;background:#0a0810}
.demo-frame{margin-top:32px;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#0f1014}
.demo-frame iframe{display:none;width:100%;height:760px;border:0}
.demo-poster img{width:100%;height:auto}
@media(min-width:1000px){.demo-frame.live iframe{display:block}.demo-frame.live .demo-poster{display:none}}
.foot-langs{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:12px}
.foot-langs a{color:var(--muted)}
.nf{min-height:70vh;display:grid;place-items:center;text-align:center}
.nf .big{font:700 clamp(80px,18vw,160px) "Space Grotesk";background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;opacity:.9;pointer-events:none;
  -webkit-mask-image:linear-gradient(to bottom,#000 55%,transparent 98%);mask-image:linear-gradient(to bottom,#000 55%,transparent 98%)}
.hero>.wrap{position:relative}
@media(prefers-reduced-motion:reduce){.hero-bg{display:none}}

.uc-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));margin-top:32px}
.uc-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;text-decoration:none;transition:border-color .15s,transform .15s}
.uc-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.uc-card img{width:100%;height:150px;object-fit:cover;background:#0a0810}
.uc-card span{padding:16px;color:var(--muted);font-size:14.5px}
.uc-card b{display:block;color:var(--text);font:700 18px "Space Grotesk";margin-bottom:4px}
.uc-hero{text-align:left;padding:48px 0 32px}
.uc-hero h1{margin:0 0 16px;font-size:clamp(34px,5.5vw,56px)}
.uc-hero .lead{margin:0}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted)}
.uc-split{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:start}
.uc-pieces{display:grid;gap:12px;margin-top:20px}
.uc-media{margin:0;position:sticky;top:80px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#0a0810}
.uc-media video{width:100%;height:auto;display:block}
@media(max-width:860px){.uc-split{grid-template-columns:1fr}.uc-media{position:static}}