:root{
  color-scheme:dark;
  --bg:#0b1114; --bg2:#0f171b; --surface:#121c21; --surface2:#16232a;
  --ink:#eaf3f3; --muted:#9bb0b6; --line:#233239;
  --accent:#2fd3b6; --accent-ink:#04201b; --accent-soft:#12332f;
  --warm:#ffb648; --warm-soft:#33260f; --bad:#ff7a7a; --bad-soft:#36191b;
  --glow:rgba(47,211,182,.18); --grid:rgba(255,255,255,.045);
  --shadow:0 18px 50px -18px rgba(0,0,0,.7);
  --r:18px; --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Vazirmatn",system-ui,-apple-system,"Segoe UI",Tahoma,sans-serif;font-size:17px;line-height:1.9;overflow-x:hidden}
img,svg{max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,p,ul{margin:0}
ul{padding:0;list-style:none}
.wrap{width:min(1180px,100% - 32px);margin-inline:auto}
.narrow{width:min(820px,100% - 32px)}
.skip{position:absolute;inset-inline-start:12px;top:-60px;background:var(--accent);color:var(--accent-ink);padding:8px 14px;border-radius:10px;z-index:100}
.skip:focus{top:12px}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:8px}

.ic{width:1.25em;height:1.25em;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.flip{transform:scaleX(-1)}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.scrolled{border-color:var(--line)}
.nav-in{display:flex;align-items:center;gap:20px;height:68px}
.brand{white-space:nowrap;display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px}
.logo{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:var(--accent);color:var(--accent-ink)}
.links{display:flex;gap:4px;margin-inline-start:auto}
.links a{padding:8px 12px;border-radius:10px;color:var(--muted);font-size:15px;font-weight:500;transition:color .2s,background .2s}
.links a:hover{color:var(--ink);background:var(--surface2)}
.nav-act{display:flex;align-items:center;gap:8px}
.icon-btn{display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:12px;cursor:pointer}
.icon-btn:hover{background:var(--surface2)}
.menu-btn{display:none}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:12px;font:inherit;font-weight:700;font-size:15px;cursor:pointer;border:1px solid transparent;transition:transform .2s var(--ease),background .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--accent);color:var(--accent-ink);box-shadow:0 10px 24px -10px var(--accent)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--surface2)}
.btn-lg{min-height:52px;padding:0 26px;font-size:16px;border-radius:14px}
.btn .ic{transform:scaleX(1)}

/* hero */
.hero{position:relative;padding:72px 0 56px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:
  radial-gradient(60% 55% at 20% 10%,var(--glow),transparent 70%),
  linear-gradient(var(--grid) 1px,transparent 1px) 0 0/44px 44px,
  linear-gradient(90deg,var(--grid) 1px,transparent 1px) 0 0/44px 44px;
  -webkit-mask-image:linear-gradient(#000 55%,transparent);mask-image:linear-gradient(#000 55%,transparent)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:14px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 var(--accent);animation:ping 2.2s infinite}
@keyframes ping{70%{box-shadow:0 0 0 10px transparent}100%{box-shadow:0 0 0 0 transparent}}
h1,h2{font-family:"Lalezar","Vazirmatn",sans-serif;font-weight:400;line-height:1.35;letter-spacing:0}
h1{font-size:clamp(28px,3.3vw,44px);margin-top:18px;text-wrap:balance}
h1 em{font-style:normal;color:var(--accent)}
.lead{margin-top:18px;font-size:19px;color:var(--muted);max-width:56ch}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cta-row.center{justify-content:center}
.ticks{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:24px;color:var(--muted);font-size:15px}
.ticks li{display:inline-flex;align-items:center;gap:6px}
.ticks .ic{color:var(--accent)}

/* mock */
.mock{position:relative;padding:18px}
.win{background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);overflow:hidden}
.win-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--surface2)}
.lights{display:flex;gap:6px}
.lights i{width:10px;height:10px;border-radius:50%;background:var(--line)}
.model-pill{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-size:13px;font-weight:700}
.model-pill .ic{color:var(--accent)}
.win-body{padding:18px;display:grid;gap:12px;min-height:330px;align-content:start}
.msg{max-width:90%;padding:12px 16px;border-radius:16px;font-size:15.5px;line-height:1.85}
.msg.user{justify-self:start;background:var(--accent);color:var(--accent-ink);border-end-start-radius:4px;font-weight:500}
.msg.bot{justify-self:end;background:var(--surface2);border:1px solid var(--line);border-end-end-radius:4px}
.msg.bot p{min-height:5.5em}
#typed.typing::after{content:"";display:inline-block;width:2px;height:1.1em;margin-inline-start:3px;background:var(--accent);vertical-align:text-bottom;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:3px 12px;border-radius:999px;border:1px solid var(--accent);background:var(--accent-soft);color:var(--ink);font-size:13px;font-weight:700}
.chip .ic{color:var(--accent)}
.composer{display:flex;align-items:center;justify-content:space-between;margin-top:6px;padding:10px 10px 10px 14px;border:1px solid var(--line);border-radius:14px;color:var(--muted);font-size:14px}
.send{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--accent);color:var(--accent-ink)}
.float{position:absolute;z-index:2;display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:14px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);font-size:13.5px;font-weight:500;animation:bob 6s ease-in-out infinite}
.float .ic{color:var(--accent)}
.f1{top:0;inset-inline-start:-6px}
.f1 .ic{color:var(--warm)}
.f2{bottom:42px;inset-inline-end:-10px;animation-delay:-2s}
.f3{bottom:-6px;inset-inline-start:30px;animation-delay:-4s}
.f3 .ic{color:var(--accent)}
@keyframes bob{50%{transform:translateY(-8px)}}

/* strip */
.strip{padding:8px 0 24px}
.strip-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--r);background:var(--surface);overflow:hidden}
.fact{padding:22px 24px;display:grid;gap:2px;border-inline-start:1px solid var(--line)}
.fact:first-child{border-inline-start:0}
.fact b{font-family:"Lalezar","Vazirmatn",sans-serif;font-weight:400;font-size:30px;color:var(--accent);line-height:1.4}
.fact span{color:var(--muted);font-size:14.5px;line-height:1.7}

/* sections */
.sec{padding:96px 0}
.sec.alt{background:var(--bg2)}
.sec-head{max-width:640px;margin-bottom:44px}
.sec-head.center{margin-inline:auto;text-align:center}
.kicker{display:inline-block;color:var(--accent);font-weight:800;font-size:14.5px;margin-bottom:10px}
h2{font-size:clamp(28px,3.4vw,42px);text-wrap:balance}
.sec-head p,.copy>p{margin-top:14px;color:var(--muted);font-size:18px}
h3{font-size:19px;font-weight:800;line-height:1.6}

.card,.tile{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:transform .3s var(--ease),box-shadow .3s,border-color .3s}
.card:hover,.tile:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}
.card p,.tile p{margin-top:8px;color:var(--muted);font-size:16px}
.ico{display:grid;place-items:center;width:46px;height:46px;border-radius:13px;background:var(--accent-soft);color:var(--accent);margin-bottom:16px;font-size:20px}

.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.trio .card{display:grid;align-content:start;gap:2px}
.badge{justify-self:start;padding:2px 12px;border-radius:999px;font-size:12.5px;font-weight:800;margin-bottom:6px}
.badge.bad{background:var(--bad-soft);color:var(--bad)}
.badge.good{background:var(--accent-soft);color:var(--accent)}
.trio h3{margin-bottom:2px}
.arrow-down{display:grid;place-items:center;width:34px;height:34px;margin:12px 0 8px;border-radius:50%;background:var(--surface2);color:var(--muted);transform:rotate(-90deg)}
.trio .strong{color:var(--ink);font-weight:500}

.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.t-wide{grid-column:span 2}
.mini-stream{display:flex;gap:8px;margin-top:18px}
.mini-stream i{height:10px;border-radius:99px;background:var(--accent-soft);flex:1;position:relative;overflow:hidden}
.mini-stream i::after{content:"";position:absolute;inset:0;background:var(--accent);transform:translateX(100%);animation:fill 3.2s var(--ease) infinite}
.mini-stream i:nth-child(2)::after{animation-delay:.2s}.mini-stream i:nth-child(3)::after{animation-delay:.4s}
.mini-stream i:nth-child(4)::after{animation-delay:.6s}.mini-stream i:nth-child(5)::after{animation-delay:.8s}
@keyframes fill{0%{transform:translateX(100%)}45%,80%{transform:translateX(0)}100%{transform:translateX(-100%)}}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.plain{margin-top:22px;display:grid;gap:10px}
.plain li{display:flex;gap:10px;align-items:flex-start;font-weight:500}
.plain .ic{color:var(--accent);margin-top:.4em}
.viz{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:var(--shadow);display:grid;gap:16px}

.cmp{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.cmp-card{position:relative;display:grid;gap:8px;padding:14px;border:1px solid var(--line);border-radius:14px;background:var(--surface2)}
.cmp-card b{font-size:14px}
.cmp-card i{display:block;height:8px;border-radius:99px;background:var(--line);width:var(--w);transform-origin:right;animation:grow 1.2s var(--ease) both;animation-play-state:paused}
.reveal.in .cmp-card i,.reveal.in .units i{animation-play-state:running}
.cmp-card.sel{border-color:var(--accent);background:var(--accent-soft)}
.cmp-card.sel i{background:var(--accent)}
.cmp-card em{font-style:normal;font-size:12px;font-weight:800;color:var(--accent)}
@keyframes grow{from{transform:scaleX(0)}}
.fallback{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:10px 14px;border-radius:12px;background:var(--warm-soft);color:var(--ink);font-size:14px;font-weight:500}
.fallback .ic:first-child{color:var(--warm)}
.fallback b{color:var(--accent)}

.files{display:flex;gap:8px}
.files span{flex:1;text-align:center;padding:12px 0;border-radius:12px;border:1px solid var(--line);border-top:4px solid var(--accent);background:var(--surface2);font-weight:800;font-size:13px;direction:ltr}
.kbbar{display:flex;align-items:center;gap:10px;padding:12px 16px;border:1px solid var(--accent);border-radius:14px;background:var(--accent-soft);font-weight:800}
.kbbar .ic{color:var(--accent)}
.kbbar small{margin-inline-start:auto;font-weight:500;color:var(--muted);font-size:13px}
.qa{display:grid;gap:10px}
.qa .msg{max-width:100%}

.gauge{position:relative;width:170px;margin-inline:auto}
.gauge svg{transform:rotate(-90deg)}
.g-bg,.g-fg{fill:none;stroke-width:11;stroke-linecap:round}
.g-bg{stroke:var(--line)}
.g-fg{stroke:var(--warm);stroke-dasharray:80 100;animation:gauge 1.6s var(--ease) both;animation-play-state:paused}
.reveal.in .g-fg{animation-play-state:running}
@keyframes gauge{from{stroke-dasharray:0 100}}
.g-txt{position:absolute;inset:0;display:grid;place-content:center;text-align:center;line-height:1.4}
.g-txt b{font-family:"Lalezar","Vazirmatn",sans-serif;font-weight:400;font-size:38px}
.g-txt span{font-size:12.5px;color:var(--muted)}
.units{display:grid;gap:10px}
.units div{display:grid;grid-template-columns:70px 1fr 38px;align-items:center;gap:10px;font-size:14px}
.units i{display:block;height:9px;border-radius:99px;background:var(--line);position:relative;overflow:hidden}
.units i::after{content:"";position:absolute;inset-block:0;inset-inline-start:0;width:var(--w);background:var(--accent);border-radius:99px;transform-origin:right;animation:grow 1.2s var(--ease) both;animation-play-state:paused}
.reveal.in .units i::after{animation-play-state:running}
.units .warn i::after{background:var(--warm)}
.units em{font-style:normal;color:var(--muted);text-align:end}
.thr{display:flex;flex-wrap:wrap;gap:8px}
.pill{padding:4px 14px;border-radius:999px;border:1px solid currentColor;font-size:13px;font-weight:800}
.pill.warm{color:var(--warm);background:var(--warm-soft)}
.pill.bad{color:var(--bad);background:var(--bad-soft)}

/* tree */
.tree{max-width:760px;margin-inline:auto;display:grid;gap:22px;justify-items:center}
.node{display:grid;justify-items:center;gap:2px;text-align:center;padding:16px 22px;border:1px solid var(--line);border-radius:16px;background:var(--surface);min-width:190px}
.node .ic{color:var(--accent);font-size:22px}
.node b{font-size:16px}
.node span{font-size:13.5px;color:var(--muted);line-height:1.6}
.node.root{border-color:var(--accent);background:var(--accent-soft)}
.node.sm{min-width:0;padding:10px 18px;display:flex;align-items:center;gap:8px;font-weight:700;font-size:14.5px}
.branch,.leaves{display:flex;flex-wrap:wrap;justify-content:center;gap:16px}
.audit{display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border-radius:999px;background:var(--warm-soft);font-weight:700;font-size:14.5px}
.audit .ic{color:var(--warm)}

.sec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}

/* dev */
.tools{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.tools span{padding:6px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface);font-weight:700;font-size:14px;direction:ltr}
.term{border-radius:16px;overflow:hidden;background:#0a1013;color:#cfe3e1;border:1px solid #1c2a30;text-align:left}
.term-bar{display:flex;align-items:center;gap:6px;padding:10px 14px;background:#0f181d;border-bottom:1px solid #1c2a30}
.term-bar i{width:10px;height:10px;border-radius:50%;background:#2a3a41}
.term-bar span{margin-inline-start:auto;font-size:12px;color:#6f8890;font-family:ui-monospace,Menlo,monospace}
.term pre{margin:0;padding:20px;overflow-x:auto;font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-size:14px;line-height:1.9}
.term .c{color:#5f7a82}.term .k{color:#2fd3b6}.term .s{color:#ffb648}
.caret{display:inline-block;width:8px;height:1.1em;background:#2fd3b6;vertical-align:text-bottom;margin-inline-start:4px;animation:blink 1s steps(1) infinite}

/* faq */
.faq{display:grid;gap:12px}
details{border:1px solid var(--line);border-radius:16px;background:var(--surface);padding:0 22px;transition:border-color .2s}
details[open]{border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;font-weight:700;font-size:17px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:26px;line-height:1;color:var(--accent);font-weight:400;transition:transform .3s var(--ease)}
details[open] summary::after{transform:rotate(45deg)}
details p{padding-bottom:20px;color:var(--muted)}

/* cta */
.cta{padding:24px 0 96px}
.cta-box{text-align:center;padding:64px 24px;border-radius:28px;background:
  radial-gradient(70% 90% at 50% 0%,var(--glow),transparent 70%),var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.cta-box p{margin-top:14px;color:var(--muted);font-size:18px}
.cta-box .cta-row{margin-top:28px}

.foot{border-top:1px solid var(--line);padding:30px 0;background:var(--bg2)}
.foot-in{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px}
.foot nav{display:flex;gap:18px;color:var(--muted);font-size:15px}
.foot nav a:hover{color:var(--ink)}
.foot small{color:var(--muted)}

/* reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* responsive */
@media (max-width:980px){
  .hero-grid,.split{grid-template-columns:1fr;gap:36px}
  .split.rev .copy{order:-1}
  .sec-grid{grid-template-columns:repeat(2,1fr)}
  .strip-grid{grid-template-columns:repeat(2,1fr)}
  .fact:nth-child(3){border-inline-start:0}
  .fact:nth-child(n+3){border-top:1px solid var(--line)}
  .links{position:absolute;inset-inline:16px;top:72px;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:8px;box-shadow:var(--shadow);display:none}
  .links.open{display:flex}
  .links a{padding:12px 14px}
  .menu-btn{display:grid}
  .nav-act{margin-inline-start:auto}
}
@media (max-width:720px){
  body{font-size:16px}
  .sec{padding:68px 0}
  .hero{padding:44px 0 36px}
  .trio,.bento{grid-template-columns:1fr}
  .t-wide{grid-column:auto}
  .sec-grid{grid-template-columns:1fr}
  .nav-act .btn{display:none}
  .fact{padding:16px 14px}
  .fact b{font-size:22px;white-space:nowrap}
  .fact span{font-size:13px}
  .mock{padding:8px}
  .float{display:none}
  .cmp{grid-template-columns:1fr}
  .viz{padding:16px}
  .units div{grid-template-columns:62px 1fr 36px}
  .cta-box{padding:44px 18px}
  .btn-lg{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}
.qa .msg.bot p{min-height:0}

h1 span,h1 em{display:block}
@media (max-width:720px){h1{font-size:clamp(25px,7.2vw,32px)}}

.hero-copy .cta-row{margin-top:32px}

.f1{max-width:260px;line-height:1.7}
.f1{max-width:none;white-space:nowrap}

.pains{display:grid;gap:10px;justify-items:center;margin:18px 0 6px}
.pains li{display:inline-flex;align-items:center;gap:10px;padding:8px 18px;border-radius:999px;background:var(--bad-soft);color:var(--ink);font-weight:500;font-size:16px;line-height:1.7}
.pains .ic{color:var(--bad)}
.sec-head .resolve{margin-top:16px;color:var(--accent);font-weight:800}

#features h2{font-size:clamp(34px,4.4vw,56px)}
.tile h3{font-size:22px}
.roles{display:flex;align-items:center;gap:10px;margin-top:18px;flex-wrap:wrap}
.roles span{padding:4px 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface2);font-size:13.5px;font-weight:700}
.roles span:first-child{border-color:var(--accent);background:var(--accent-soft)}
.roles i{width:22px;height:2px;border-radius:2px;background:var(--line)}

/* demo modal */
.modal{width:min(460px,100% - 32px);max-height:calc(100dvh - 32px);overflow:auto;padding:32px 28px 28px;border:1px solid var(--line);border-radius:24px;background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}
.modal::backdrop{background:rgba(4,9,11,.72);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.modal[open]{animation:pop .3s var(--ease)}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.98)}}
.modal h2{font-size:30px}
.modal-sub{margin-top:8px;color:var(--muted);font-size:15.5px}
.modal-x{position:absolute;inset-block-start:14px;inset-inline-end:14px;display:grid;place-items:center;width:40px;height:40px;border:0;border-radius:12px;background:transparent;color:var(--muted);cursor:pointer}
.modal-x:hover{background:var(--surface2);color:var(--ink)}
.field{display:grid;gap:6px;margin-top:18px}
.field label{font-weight:700;font-size:15px}
.field input{width:100%;min-height:50px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:var(--surface2);color:var(--ink);font:inherit;font-size:16px;transition:border-color .2s,box-shadow .2s}
.field input::placeholder{color:var(--muted);opacity:.7}
.field input:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px var(--glow)}
.field.bad input{border-color:var(--bad)}
.err{min-height:0;color:var(--bad);font-size:13.5px;line-height:1.6}
.err:empty{display:none}
.hp{position:absolute;inset-inline-start:-9999px;width:1px;height:1px;opacity:0}
.form-error{margin-top:14px;padding:10px 14px;border-radius:12px;background:var(--bad-soft);color:var(--ink);font-size:14.5px}
#demo-submit{width:100%;margin-top:22px}
#demo-submit[disabled]{opacity:.6;cursor:progress;transform:none}
.done{display:grid;justify-items:center;text-align:center;gap:6px;padding:12px 0 4px}
.done .btn{margin-top:18px}
.ico.big{width:64px;height:64px;border-radius:50%;font-size:30px;margin-bottom:8px}

[hidden]{display:none!important}