@font-face{font-family:"VT323";src:url(/s/fonts/vt323-latin-400-normal.woff2) format("woff2");font-display:swap}
@font-face{font-family:"Kufi";font-weight:500;font-display:swap;src:url(/s/fonts/noto-kufi-arabic-arabic-500-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+08A0-08FF,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Kufi";font-weight:700;font-display:swap;src:url(/s/fonts/noto-kufi-arabic-arabic-700-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+08A0-08FF,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Plex Arabic";font-weight:400;font-display:swap;src:url(/s/fonts/ibm-plex-sans-arabic-arabic-400-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+08A0-08FF,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Plex Arabic";font-weight:600;font-display:swap;src:url(/s/fonts/ibm-plex-sans-arabic-arabic-600-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+08A0-08FF,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Plex Arabic";font-weight:400;font-display:swap;src:url(/s/fonts/ibm-plex-sans-arabic-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+2190-21FF}
@font-face{font-family:"Plex Arabic";font-weight:600;font-display:swap;src:url(/s/fonts/ibm-plex-sans-arabic-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+2190-21FF}

/* layout: one narrow column of short sections; the terminal font carries the brand, Kufi carries the Arabic */
:root{color-scheme:dark;
 --bg:#070C14; --bg2:#0B1320; --card:#0E1828; --line:#1A2638; --ink:#E6EEF6; --ink2:#9DB0C4; --ink3:#647891;
 --teal:#14C8B4; --blue:#2F5BFF; --grad:linear-gradient(90deg,#14C8B4,#2F5BFF);
 --mono:"VT323",ui-monospace,monospace; --sans:"Plex Arabic",system-ui,-apple-system,"Segoe UI",sans-serif;
 --head:"Kufi","Plex Arabic",system-ui,sans-serif;
 --r:14px; --w:1080px;
}
[lang=en]{--head:var(--mono)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.75;overflow-x:hidden;font-variant-numeric:tabular-nums}
[lang=en] body{line-height:1.55}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.35;
 background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
 background-size:56px 56px;mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 70%)}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:var(--w);margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px));position:relative;z-index:1}
section{position:relative;z-index:1;padding:56px 0}
[hidden]{display:none!important}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:rgba(7,12,20,.8);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.scrolled{border-bottom-color:var(--line)}
.nav .wrap{display:flex;align-items:center;gap:20px;height:64px}
.nav .logo img{height:28px;width:auto}
.nav .links{display:flex;gap:22px;margin-inline-start:auto;font-size:15px}
.nav .links a{text-decoration:none;color:var(--ink2);transition:color .2s}
.nav .links a:hover{color:var(--ink)}
.lang{font:inherit;font-size:14px;background:transparent;color:var(--ink);border:1px solid var(--line);border-radius:999px;padding:6px 14px;cursor:pointer;min-height:36px}
.lang:hover{border-color:var(--teal)}

/* buttons: one style everywhere */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:12px 24px;border-radius:12px;font-family:var(--head);font-weight:500;font-size:16px;text-decoration:none;color:var(--ink);
 background:linear-gradient(var(--bg2),var(--bg2)) padding-box,var(--grad) border-box;border:1.5px solid transparent;transition:transform .2s,box-shadow .2s;cursor:pointer;text-align:center;line-height:1.3}
[lang=en] .btn{font-size:22px;letter-spacing:.3px}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px -12px rgba(20,200,180,.7)}
.btn:focus-visible,.lang:focus-visible{outline:2px solid var(--teal);outline-offset:3px}
.btn.sm{min-height:40px;padding:6px 16px;font-size:15px}
[lang=en] .btn.sm{font-size:20px}
.ctas{display:flex;gap:12px}
.ctas .btn{flex:0 1 240px}

/* labels: terminal prompt */
.label{font-family:var(--mono);font-size:22px;color:var(--teal);letter-spacing:.5px;display:inline-block}
.label::before{content:"$ ";color:var(--ink3)}
.label::after{content:"_";animation:blink 1.1s steps(1) infinite}
[dir=rtl] .label{font-family:var(--head);font-size:15px;font-weight:500;letter-spacing:0}
[dir=rtl] .label::before{font-family:var(--mono);font-size:22px}
@keyframes blink{50%{opacity:0}}
.sh{font-size:clamp(28px,3.6vw,40px);margin:0}
.sh::before{content:"$ ";font-family:var(--mono);font-weight:400;color:var(--teal)}
.sh::after{content:"_";font-family:var(--mono);font-weight:400;color:var(--teal);animation:blink 1.1s steps(1) infinite}
[lang=en] .sh{font-size:clamp(38px,5vw,56px)}
.sub{margin:6px 0 0;color:var(--ink2);font-size:16px}
.panel{margin-top:22px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px 26px}
h1,h2,h3{margin:0;font-family:var(--head);text-wrap:balance}
h1,h2{line-height:1.35}
h2{font-size:clamp(26px,3.4vw,36px);font-weight:700;margin-top:8px}
[lang=en] h1,[lang=en] h2{font-weight:400;line-height:1.02;letter-spacing:.3px}
[lang=en] h2{font-size:clamp(34px,4.6vw,50px)}

/* hero */
.hero{padding:64px 0 56px}
.pulse{display:flex;align-items:center;gap:0}
.tag{flex:none;display:inline-flex;align-items:center;gap:10px;font-family:var(--head);font-weight:500;font-size:14px;color:var(--teal);border:1px solid rgba(20,200,180,.4);background:rgba(20,200,180,.08);padding:6px 14px;border-radius:999px;position:relative;z-index:1}
[lang=en] .tag{font-size:20px;padding:3px 14px}
.tag i{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 0 rgba(20,200,180,.7);animation:ping 1.8s infinite}
@keyframes ping{70%{box-shadow:0 0 0 10px rgba(20,200,180,0)}100%{box-shadow:0 0 0 0 rgba(20,200,180,0)}}
.ecg{flex:1;min-width:0;height:84px;position:relative}
.ecg canvas{position:absolute;inset:0;width:100%;height:100%}
.vitals{display:flex;flex-wrap:nowrap;gap:18px;margin-top:2px;font-family:var(--mono);font-size:17px;color:var(--ink3);direction:ltr;justify-content:flex-end;white-space:nowrap;overflow:hidden}
[dir=ltr] .vitals{justify-content:flex-start}
.vitals b{color:var(--teal);font-weight:400;margin-inline-start:6px}
.vitals small{font-size:13px;margin-inline-start:2px;color:var(--ink3)}
.hero h1{font-size:clamp(34px,5.6vw,64px);font-weight:700;margin:34px 0 14px}
[lang=en] .hero h1{font-size:clamp(30px,8.4vw,86px)}
.hero h1 .g{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:clamp(17px,2vw,20px);color:var(--ink2);max-width:600px;margin:0 0 28px}

/* what: four layers on one rail, no boxes */
.layers{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;position:relative}
.layers::before{content:"";position:absolute;top:9px;inset-inline:0;height:2px;background:var(--grad);opacity:.55}
.layers li{position:relative;padding:34px 18px 0 0}
[dir=ltr] .layers li{padding:34px 18px 0 0}
[dir=rtl] .layers li{padding:34px 0 0 18px}
.layers li::before{content:"";position:absolute;top:2px;inset-inline-start:0;width:16px;height:16px;border-radius:50%;background:var(--bg);border:2px solid var(--teal);box-shadow:0 0 12px rgba(20,200,180,.5)}
.layers .n{font-family:var(--mono);font-size:20px;color:var(--ink3);line-height:1}
.layers h3{font-size:18px;font-weight:700;margin:6px 0 6px}
[lang=en] .layers h3{font-size:26px;font-weight:400;line-height:1.05}
.layers p{margin:0;color:var(--ink2);font-size:15px;line-height:1.65}

/* what: intro statement, then the four parts linked on one rail */
.intro{margin-top:22px;border-radius:18px;padding:24px 26px;background:linear-gradient(var(--bg2),var(--bg2)) padding-box,var(--grad) border-box;border:1.5px solid transparent}
.intro p{margin:0;font-family:var(--head);font-weight:500;font-size:clamp(18px,2.1vw,22px);line-height:1.7;color:var(--ink)}
[lang=en] .intro p{font-size:clamp(22px,2.6vw,28px);line-height:1.2}
.parts{font-size:17px;font-weight:700;color:var(--teal);margin:0 0 22px}
[lang=en] .parts{font-size:24px;font-weight:400}
.layers li:not(:last-child)::after{content:"";position:absolute;top:4px;inset-inline-end:10px;width:9px;height:9px;border-top:2px solid var(--teal);border-inline-end:2px solid var(--teal);transform:rotate(45deg)}
[dir=rtl] .layers li:not(:last-child)::after{transform:rotate(-45deg)}

/* how: one panel, arrows, loop */
.loop{padding:24px 24px}
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.chip{font-family:var(--head);font-weight:500;font-size:15px;padding:9px 16px;border-radius:999px;border:1px solid #23405c;background:var(--bg2);color:var(--ink);transition:border-color .4s,box-shadow .4s,color .4s}
[lang=en] .chip{font-size:21px;padding:5px 14px}
.chip.on{border-color:var(--teal);box-shadow:0 0 16px -2px rgba(20,200,180,.55);color:#fff}
.arr{font-family:var(--mono);font-size:24px;color:var(--teal);line-height:1}
.last{display:inline-flex;align-items:center;gap:6px}
.back{font-size:20px;line-height:1;color:var(--teal)}
.loop-note{margin:16px 0 0;color:var(--ink2);font-size:15px}

/* uses: small tiles, four per row */
.uses{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:30px}
.use{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;transition:transform .25s,border-color .25s}
.use:hover{transform:translateY(-3px);border-color:var(--teal)}
.use svg{flex:none;width:24px;height:24px;stroke:var(--teal);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;transition:transform .3s}
.use:hover svg{transform:scale(1.15) rotate(-6deg)}
.use span{min-width:0;font-family:var(--head);font-weight:500;font-size:15px;line-height:1.35;overflow-wrap:break-word}
.use{min-width:0}
[lang=en] .use span{font-size:20px;line-height:1.05}

/* accuracy: two numbers */
.acc{margin-top:22px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;max-width:760px}
.mrow{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px}
.mrow .name{color:var(--ink2);font-size:15px;font-family:var(--head);font-weight:500}
[lang=en] .mrow .name{font-size:21px}
.mrow .val{display:block;font-family:var(--mono);font-size:64px;line-height:1;direction:ltr;text-align:start;margin-top:6px}
.mrow.model .val{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.mrow.chance .val{color:var(--ink3)}
.track{height:8px;border-radius:99px;background:#122034;margin-top:14px;overflow:hidden}
.track span{display:block;height:100%;width:0;border-radius:99px;transition:width 1.4s cubic-bezier(.2,.8,.2,1)}
.mrow.model .track span{background:var(--grad)}
.mrow.chance .track span{background:#3a4c63}
.collect{grid-column:1/-1;color:var(--ink2);font-size:16px;border:1px dashed #2a3b52;border-radius:12px;padding:18px;margin:0}

/* vision: the two columns share one heading size and one text size */
.vm{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:22px}
.vm>div{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px}
.vm h3{font-family:var(--head);font-weight:700;font-size:20px;color:var(--teal)}
[lang=en] .vm h3{font-weight:400;font-size:28px;line-height:1}
.vm p{font-size:17px;color:var(--ink);margin:8px 0 0;line-height:1.75}
[lang=en] .vm p{line-height:1.55}

/* join */
.join{text-align:center;padding:56px 0 88px}
.join .box{border:1px solid var(--line);border-radius:22px;padding:44px 22px;background:radial-gradient(600px 260px at 50% 0%,rgba(47,91,255,.18),transparent 70%),var(--bg2)}
.join h2{margin:0 auto 24px;max-width:640px}
.join .ctas{justify-content:center}
.join .mail{display:inline-block;margin-top:22px;font-family:var(--mono);font-size:24px;color:var(--ink);text-decoration:none;direction:ltr;border-bottom:1px dashed var(--ink3)}
.join .mail:hover{color:var(--teal);border-color:var(--teal)}
footer{position:relative;z-index:1;border-top:1px solid var(--line);padding:24px 0;color:var(--ink3);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
footer img{height:22px;width:auto}

/* reveal (content is visible at rest; this only adds a rise) */
.rv.in{animation:rise .8s cubic-bezier(.2,.8,.2,1) both}
@keyframes rise{from{opacity:.3;transform:translateY(20px)}to{opacity:1;transform:none}}
.rv.d1{animation-delay:.08s}.rv.d2{animation-delay:.16s}.rv.d3{animation-delay:.24s}.rv.d4{animation-delay:.32s}

@media (max-width:900px){
 .nav .links{display:none}
 .layers{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:28px}
 .layers::before{display:none}
 .vm{grid-template-columns:1fr;gap:12px}
}
@media (max-width:560px){
 body{font-size:16px}
 section{padding:52px 0}
 .wrap{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
 .nav .wrap{gap:10px}
 .nav .btn{display:none}
 .lang{margin-inline-start:auto}
 .hero{padding:40px 0 40px}
 .ecg{height:64px}
 .vitals{font-size:14px;gap:9px;justify-content:space-between}
 .vitals b{margin-inline-start:3px}
 .vitals small{display:none}
 .hero h1{margin-top:26px}
 .ctas{gap:10px}
 .ctas .btn{flex:1 1 0;padding:10px 8px;font-size:13px;white-space:nowrap;min-height:46px}
 [lang=en] .ctas .btn{font-size:19px}
 .layers{grid-template-columns:1fr;row-gap:20px}
 .layers::before{display:block;top:6px;bottom:6px;height:auto;width:2px;inset-inline-start:7px;inset-inline-end:auto;background:linear-gradient(#14C8B4,#2F5BFF)}
 [dir] .layers li{padding:0;padding-inline-start:34px}
 .layers li::before{top:4px}
 .layers .n{display:none}
 .layers li:not(:last-child)::after{top:auto;bottom:-15px;inset-inline-end:auto;inset-inline-start:4px;transform:rotate(135deg)}
 [dir=rtl] .layers li:not(:last-child)::after{transform:rotate(-135deg)}
 .layers h3{margin-top:0}
 .loop{padding:20px 16px}
 .flow{gap:6px}
 .arr{font-size:18px}
 .chip{font-size:13px;padding:6px 11px}
 [lang=en] .chip{font-size:18px;padding:3px 10px}
 .panel{padding:20px 16px}
 .uses{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
 .use{flex-direction:column;align-items:center;text-align:center;gap:8px;padding:12px 4px}
 .use span{font-size:12px}
 [lang=en] .uses{gap:6px}
 [lang=en] .use{padding:12px 2px}
 [lang=en] .use span{font-size:13.5px;line-height:1;letter-spacing:-.3px}
 .mrow{padding:16px}
 .mrow .val{font-size:46px}
 .join .box{padding:34px 16px}
}
@media (prefers-reduced-motion:reduce){
 *,*::before,*::after{animation:none!important;transition:none!important}
}