:root{
  --bg:#fafaf9; --surface:#ffffff; --text:#0b0b0f; --muted:#5b5b66; --line:#e7e7ea;
  --accent:#6d4aff; --accent-2:#00b3a4; --radius:18px; --max:1080px;
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#0b0b0f; --surface:#131318; --text:#f3f3f5; --muted:#a0a0ab; --line:#24242c; --accent:#8b72ff; --accent-2:#2fd3c4; }
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* nav */
nav{position:sticky;top:0;z-index:10;backdrop-filter:blur(12px);background:color-mix(in srgb,var(--bg) 80%,transparent);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:700;letter-spacing:.12em;font-size:18px;display:flex;align-items:center;gap:10px}
.logo i{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-2))}
nav ul{display:flex;gap:28px;list-style:none;font-size:15px;color:var(--muted)}
nav ul a:hover{color:var(--text)}
.nav-right{display:flex;align-items:center;gap:28px}
.lang{font-size:13px;font-weight:600;letter-spacing:.06em;padding:6px 12px;border:1px solid var(--line);border-radius:999px}
.lang:hover{border-color:var(--text)}
@media (max-width:640px){nav ul{display:none}}

/* hero */
.hero{padding:120px 0 96px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-40% -10% auto auto;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,color-mix(in srgb,var(--accent) 28%,transparent),transparent 65%);filter:blur(20px);z-index:-1}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);
  border:1px solid color-mix(in srgb,var(--accent) 35%,transparent);padding:6px 12px;border-radius:999px;margin-bottom:28px}
h1{font-size:clamp(40px,7vw,76px);line-height:1.05;letter-spacing:-.035em;font-weight:700;max-width:14ch}
h1 span{background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(18px,2.2vw,21px);color:var(--muted);max-width:56ch;margin:28px 0 40px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 24px;border-radius:999px;font-weight:600;font-size:16px;transition:transform .15s ease,opacity .15s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--text);color:var(--bg)}
.btn-ghost{border:1px solid var(--line);margin-left:8px}

/* sections */
section{padding:96px 0;border-top:1px solid var(--line)}
.label{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
h2{font-size:clamp(30px,4vw,44px);letter-spacing:-.025em;line-height:1.15;font-weight:700;max-width:22ch;margin-bottom:48px}

.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(min(100%,400px),1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}
#ai{background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 7%,var(--bg)),var(--bg))}
.intro{color:var(--muted);font-size:18px;max-width:60ch;margin:-28px 0 40px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:32px}
.tags span{font-size:13.5px;padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:var(--surface)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px;transition:border-color .2s,transform .2s}
.card:hover{border-color:color-mix(in srgb,var(--accent) 50%,var(--line));transform:translateY(-2px)}
.card .ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:22px;
  background:color-mix(in srgb,var(--accent) 12%,transparent);color:var(--accent)}
.card h3{font-size:20px;letter-spacing:-.01em;margin-bottom:10px}
.card p{color:var(--muted);font-size:15.5px}
.card ul{list-style:none;margin-top:16px;display:grid;gap:6px;font-size:14.5px}
.card li::before{content:"→ ";color:var(--accent)}

/* steps */
.steps{display:grid;gap:0;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));counter-reset:s}
.step{padding:28px 24px 28px 0;border-top:2px solid var(--line);position:relative}
.step::before{counter-increment:s;content:"0" counter(s);font-size:14px;font-weight:600;color:var(--accent);display:block;margin-bottom:12px}
.step h4{font-size:18px;margin-bottom:6px}
.step p{color:var(--muted);font-size:15px}

/* team */
.team{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.person{display:flex;gap:20px;align-items:flex-start}
.avatar{flex:none;width:64px;height:64px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:20px;color:#fff;
  background:linear-gradient(135deg,var(--accent),var(--accent-2))}
.person h3{font-size:20px;margin-bottom:2px}
.person .role{color:var(--accent);font-size:14px;font-weight:600;margin-bottom:10px}
.person p{color:var(--muted);font-size:15.5px}
.person a.in{display:inline-block;margin-top:12px;font-size:14px;font-weight:600;border-bottom:1px solid var(--line)}
.person a.in:hover{border-color:var(--text)}
img.avatar{object-fit:cover;background:var(--line)}

/* contact */
.contact{text-align:center}
.contact h2{margin:0 auto 20px}
.contact .lead{margin:0 auto 36px}
footer{padding:40px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}