:root{--bg:#fbfbfd;--bg2:#f5f5f7;--card:#fff;--fg:#1d1d1f;--mut:#6e6e73;--blue:#0071e3;--blue2:#0a84ff;--line:rgba(0,0,0,.08);--nav:rgba(251,251,253,.72);--shadow:0 10px 40px rgba(0,60,160,.10);--hero1:#0a3d91;--hero2:#0071e3;--hero3:#5ac8fa}
@media (prefers-color-scheme:dark){:root{--bg:#000;--bg2:#0b0b0f;--card:#141418;--fg:#f5f5f7;--mut:#a1a1a6;--blue:#2997ff;--blue2:#0a84ff;--line:rgba(255,255,255,.10);--nav:rgba(0,0,0,.6);--shadow:0 10px 40px rgba(0,80,255,.18);--hero1:#041a45;--hero2:#0a4fc0;--hero3:#2b8cff}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.55 -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
.wrap{max-width:1040px;margin:0 auto;padding:0 22px}
/* nav */
nav.top{position:sticky;top:0;z-index:50;background:var(--nav);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line)}
nav.top .wrap{display:flex;align-items:center;justify-content:space-between;height:56px;gap:14px}
.logo{display:flex;align-items:center;gap:9px;font-weight:600;font-size:18px;color:var(--fg);letter-spacing:-.2px}
.logo i{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--blue2),#5ac8fa);display:grid;place-items:center;color:#fff;font-style:normal;font-weight:700;font-size:16px}
.links{display:flex;gap:22px;font-size:14px}.links a{color:var(--mut)}.links a:hover{color:var(--fg)}
.right{display:flex;align-items:center;gap:10px}
.lang button{background:none;border:0;color:var(--mut);cursor:pointer;font:inherit;font-size:13px;padding:4px 6px;border-radius:6px}
.lang button.on{color:var(--fg);font-weight:600}
.pill{display:inline-block;background:var(--blue);color:#fff;font-size:14px;font-weight:500;padding:7px 15px;border-radius:99px}
.pill:hover{background:var(--blue2)}
/* hero */
.hero{position:relative;overflow:hidden;color:#fff;text-align:center;background:radial-gradient(900px 500px at 50% 110%,var(--hero3),transparent 65%),linear-gradient(180deg,var(--hero1),var(--hero2));padding:84px 0 0}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;filter:blur(70px);opacity:.45;pointer-events:none}
.hero:before{width:420px;height:420px;background:#5ac8fa;left:-120px;top:-100px}
.hero:after{width:380px;height:380px;background:#5e5ce6;right:-120px;top:60px}
.hero .wrap{position:relative;z-index:2}
.eyebrow{display:inline-block;font-size:14px;font-weight:500;padding:5px 14px;border-radius:99px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.25);margin-bottom:22px;backdrop-filter:blur(8px)}
h1{font-size:clamp(38px,7.4vw,76px);line-height:1.04;letter-spacing:-.035em;font-weight:700;margin:0 auto 18px;max-width:880px}
h1 .g{background:linear-gradient(90deg,#fff,#bfe3ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(18px,2.4vw,23px);line-height:1.4;color:rgba(255,255,255,.88);max-width:640px;margin:0 auto 30px}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:56px}
.btn{display:inline-block;padding:13px 26px;border-radius:99px;font-size:17px;font-weight:500;transition:transform .2s,background .2s}
.btn.w{background:#fff;color:#0a3d91}.btn.w:hover{transform:scale(1.03)}
.btn.o{border:1px solid rgba(255,255,255,.5);color:#fff}.btn.o:hover{background:rgba(255,255,255,.12)}
/* phone */
.phone{width:290px;margin:0 auto;border-radius:44px 44px 0 0;background:#0b0b10;padding:12px 12px 0;box-shadow:0 -10px 60px rgba(0,30,120,.5),0 0 0 2px #2a2a33 inset;position:relative}
.phone:before{content:"";position:absolute;top:18px;left:50%;transform:translateX(-50%);width:84px;height:22px;border-radius:99px;background:#000;z-index:3}
.screen{background:#e9eef6;border-radius:34px 34px 0 0;min-height:400px;padding:50px 12px 18px;text-align:left;color:#111;font-size:14px}
@media (prefers-color-scheme:dark){.screen{background:#0e1621;color:#fff}}
.chat-h{position:absolute;top:44px;left:12px;right:12px;display:flex;align-items:center;gap:8px;padding:8px 12px;background:rgba(255,255,255,.7);backdrop-filter:blur(10px);border-radius:0;font-weight:600;font-size:13px;color:#111;z-index:2}
@media (prefers-color-scheme:dark){.chat-h{background:rgba(23,33,43,.85);color:#fff}}
.chat-h b{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#0a84ff,#5ac8fa);display:grid;place-items:center;color:#fff;font-size:12px}
.msgs{margin-top:34px;display:flex;flex-direction:column;gap:8px}
.m{max-width:84%;padding:9px 12px;border-radius:16px;line-height:1.35}
.m.bot{background:#fff;border-bottom-left-radius:5px;align-self:flex-start;box-shadow:0 1px 2px rgba(0,0,0,.08)}
.m.me{background:#2b7de9;color:#fff;border-bottom-right-radius:5px;align-self:flex-end}
@media (prefers-color-scheme:dark){.m.bot{background:#182533;color:#fff}}
.kb{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}.kb span{background:rgba(43,125,233,.14);color:#1f6fd6;padding:5px 10px;border-radius:9px;font-size:12.5px;font-weight:500}
@media (prefers-color-scheme:dark){.kb span{background:rgba(255,255,255,.1);color:#8cc4ff}}
/* sections */
section{padding:96px 0}
section.alt{background:var(--bg2)}
.kick{color:var(--blue);font-weight:600;font-size:15px;margin-bottom:8px}
h2{font-size:clamp(30px,5vw,48px);line-height:1.08;letter-spacing:-.03em;font-weight:700;margin:0 0 14px}
.sec-sub{color:var(--mut);font-size:clamp(17px,2.2vw,21px);max-width:600px;margin:0 0 44px}
.center{text-align:center}.center .sec-sub{margin-left:auto;margin-right:auto}
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.tile{grid-column:span 3;background:var(--card);border-radius:28px;padding:34px;box-shadow:var(--shadow);border:1px solid var(--line);min-height:230px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden;transition:transform .3s}
.tile:hover{transform:translateY(-4px)}
.tile .ic{position:absolute;top:24px;right:26px;font-size:64px;line-height:1;filter:drop-shadow(0 8px 14px rgba(0,60,160,.25))}
.tile h3{font-size:26px;letter-spacing:-.02em;margin:0 0 6px;font-weight:650}
.tile p{margin:0;color:var(--mut);font-size:16px;max-width:300px}
.tile.big{grid-column:span 4;background:linear-gradient(135deg,#0a84ff,#0a3d91);color:#fff;border:0}.tile.big p{color:rgba(255,255,255,.85)}
.tile.sm{grid-column:span 2}
.tile.sm .ic{font-size:48px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
.step{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:26px;box-shadow:var(--shadow);position:relative}
.step:before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--blue2),#5ac8fa);color:#fff;font-weight:700;margin-bottom:16px}
.step p{margin:0;font-size:16px}
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.f{padding:6px 4px}.f b{display:block;font-size:19px;margin-bottom:4px;letter-spacing:-.01em}.f span{color:var(--mut);font-size:16px}
.f .d{width:44px;height:44px;border-radius:13px;background:rgba(0,113,227,.12);display:grid;place-items:center;font-size:22px;margin-bottom:14px}
.band{background:linear-gradient(135deg,var(--hero1),var(--hero2));color:#fff;border-radius:32px;padding:56px 28px;text-align:center;position:relative;overflow:hidden}
.band h2{color:#fff}.band p{color:rgba(255,255,255,.85);margin:0 auto 26px;max-width:520px}
.band a.mail{color:#fff;text-decoration:underline;text-underline-offset:3px}
footer{padding:36px 0 54px;color:var(--mut);font-size:13px;border-top:1px solid var(--line);margin-top:0}
footer a{color:var(--mut);margin-right:18px}footer a:hover{color:var(--fg)}
/* reveal */
.js .rv{opacity:0;transform:translateY(24px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}
/* docs pages */
.doc{padding:40px 0 20px;max-width:760px}.doc h1{font-size:40px;letter-spacing:-.03em;color:var(--fg);margin:10px 0 18px;max-width:none}.doc h2{font-size:20px;margin:30px 0 8px;letter-spacing:-.01em}.doc p,.doc li{color:var(--mut)}
/* lang */
body [lang]{display:none}
html[data-l="ru"] [lang="ru"],html[data-l="en"] [lang="en"]{display:block}
html[data-l="ru"] span[lang="ru"],html[data-l="en"] span[lang="en"]{display:inline}
html[data-l="ru"] li[lang="ru"],html[data-l="en"] li[lang="en"]{display:list-item}
@media (max-width:820px){.links{display:none}.bento{grid-template-columns:1fr}.tile,.tile.big,.tile.sm{grid-column:auto;min-height:190px}.steps{grid-template-columns:1fr 1fr}.feat{grid-template-columns:1fr}section{padding:64px 0}.hero{padding-top:56px}}
@media (max-width:520px){.steps{grid-template-columns:1fr}.pill{padding:6px 12px}.logo span{display:none}.hero{padding-top:44px}}
.tile h3{padding-right:76px}.tile p{padding-right:10px}
@media (max-width:820px){.tile .ic{font-size:52px;top:20px;right:20px}.tile.sm .ic{font-size:44px}}