/* ============ a3a — dark instrument panel. Single committed theme. ============ */
:root{
  color-scheme: dark;
  --ground:#0b0d10;
  --surface:#12161c;
  --surface-2:#171c24;
  --hair:#232b35;
  --hair-soft:#1b222b;
  --ink:#e9edf3;
  --ink-dim:#aab3c0;
  --muted:#7c8794;
  --sys:#5b8def;         /* structure / links / the system */
  --sys-soft:#5b8def33;
  --act:#e8a23d;         /* human action / result */
  --ok:#3fbf7f;          /* running / verified */
  --dot:#2a3340;
  --maxw:1180px;
  --pad:clamp(20px,5vw,64px);
}
@property --beam{ syntax:'<angle>'; inherits:false; initial-value:0deg; }

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ground);color:var(--ink);
  font:400 17px/1.6 "IBM Plex Sans","IBM Plex Sans Arabic",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body[dir="rtl"]{font-family:"IBM Plex Sans Arabic","IBM Plex Sans",system-ui,sans-serif}
h1,h2,h3{font-family:"Sora","IBM Plex Sans Arabic",sans-serif;font-weight:800;line-height:1.03;letter-spacing:-.02em}
body[dir="rtl"] h1,body[dir="rtl"] h2,body[dir="rtl"] h3{font-family:"IBM Plex Sans Arabic",sans-serif;letter-spacing:0;line-height:1.16;font-weight:700}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace}

.grid-bg{
  position:fixed;inset:-20vh 0;z-index:0;pointer-events:none;
  background-image:radial-gradient(circle,var(--dot) 1px,transparent 1.4px);
  background-size:34px 34px;
  -webkit-mask-image:radial-gradient(120% 80% at 70% 0%,#000 30%,transparent 78%);
  mask-image:radial-gradient(120% 80% at 70% 0%,#000 30%,transparent 78%);
  opacity:.5;will-change:transform;
}
.glow{
  position:fixed;z-index:0;pointer-events:none;width:60vw;height:60vw;top:-22vw;right:-14vw;
  border-radius:50%;background:radial-gradient(circle at 50% 50%,var(--sys-soft),transparent 62%);
  filter:blur(20px);opacity:.9;
}
body[dir="rtl"] .glow{right:auto;left:-14vw}

.wrap{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}

/* ---- nav ---- */
header{
  position:sticky;top:0;z-index:20;backdrop-filter:blur(10px);
  background:color-mix(in oklab,var(--ground) 78%,transparent);border-bottom:1px solid var(--hair-soft);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:60px;gap:18px}
.brand{font-family:"IBM Plex Mono",monospace;font-weight:500;font-size:19px;letter-spacing:.14em;color:var(--ink);text-decoration:none}
.brand b{color:var(--act);font-weight:500}
.nav-links{display:flex;gap:26px}
.nav-links a{font-family:"IBM Plex Mono",monospace;font-size:12.5px;letter-spacing:.1em;color:var(--muted);text-decoration:none;text-transform:uppercase;transition:.16s}
.nav-links a:hover{color:var(--ink)}
.nav-r{display:flex;align-items:center;gap:14px}
.toggle{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.1em;background:none;
  border:1px solid var(--hair);color:var(--ink-dim);padding:7px 11px;border-radius:7px;cursor:pointer;transition:.18s}
.toggle:hover{border-color:var(--sys);color:var(--ink)}
.btn{
  position:relative;display:inline-flex;align-items:center;gap:9px;
  font:500 14px/1 "IBM Plex Sans","IBM Plex Sans Arabic",sans-serif;
  padding:12px 20px;border-radius:9px;cursor:pointer;border:1px solid transparent;
  text-decoration:none;transition:transform .16s,box-shadow .16s,background .16s,border-color .16s;
}
.btn.primary{background:var(--act);color:#1a1206;font-weight:600}
.btn.primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px -12px var(--act)}
.btn.ghost{background:var(--surface);color:var(--ink);border-color:var(--hair)}
.btn.ghost:hover{border-color:var(--sys);color:#fff;transform:translateY(-2px)}
.btn.sm{padding:9px 15px;font-size:13px}

/* ---- reveal ---- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}

/* ---- hero ---- */
.hero{padding:clamp(52px,10vh,110px) 0 clamp(60px,11vh,120px);
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,70px);align-items:center}
.kick{font-family:"IBM Plex Mono",monospace;font-size:12.5px;letter-spacing:.24em;color:var(--sys);
  text-transform:uppercase;margin-bottom:22px;display:flex;align-items:center;gap:10px}
body[dir="rtl"] .kick{letter-spacing:.08em}
.kick::before{content:"";width:26px;height:1px;background:var(--sys)}
h1{font-size:clamp(2.4rem,5.4vw,4rem);max-width:16ch}
body[dir="rtl"] h1{font-size:clamp(2rem,5vw,3.4rem);max-width:20ch}
.lead{margin-top:24px;color:var(--ink-dim);font-size:clamp(1rem,1.6vw,1.12rem);max-width:52ch}
.cta{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.w{display:inline-block;opacity:0;filter:blur(14px);transform:translateY(16px);
  animation:win .62s cubic-bezier(.2,.7,.2,1) both}
@keyframes win{to{opacity:1;filter:blur(0);transform:none}}

/* ---- schematic ---- */
.sch{position:relative;aspect-ratio:1/1;width:100%;max-width:460px;margin-inline:auto}
.sch svg{width:100%;height:100%;overflow:visible}
.sch .link{stroke:var(--hair);stroke-width:1.4;fill:none}
.sch .node circle{fill:var(--surface-2);stroke:var(--hair);stroke-width:1.4}
.sch .node.core circle{stroke:var(--sys);fill:#0e1420}
.sch .node text{fill:var(--muted);font-family:"IBM Plex Mono",monospace;font-size:9.5px;letter-spacing:.06em}
.sch .node.core text{fill:var(--ink)}
.sch .pulse{fill:var(--sys)}
.sch .breathe{animation:breathe 4.5s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:.55}50%{opacity:1}}

/* ---- sections ---- */
.sec{padding:clamp(58px,10vh,110px) 0;border-top:1px solid var(--hair-soft)}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:44px}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem)}
.sec-lead{color:var(--ink-dim);max-width:46ch;font-size:1rem;margin-top:14px}
.count{font-family:"Sora",sans-serif;font-weight:800;font-size:clamp(2.6rem,6vw,3.6rem);color:var(--ink);
  line-height:1;display:flex;align-items:baseline;gap:12px;white-space:nowrap}
.count small{font:500 12px/1 "IBM Plex Mono",monospace;color:var(--muted);letter-spacing:.12em;
  text-transform:uppercase;align-self:flex-end;padding-bottom:4px}

/* tool cards */
.tools{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:16px}
.tool{position:relative;background:var(--surface);border:1px solid var(--hair);border-radius:13px;
  padding:22px 20px;overflow:hidden;transition:transform .18s,border-color .18s;isolation:isolate}
.tool::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;z-index:-1;opacity:0;
  transition:opacity .25s;
  background:conic-gradient(from var(--beam),transparent 0 300deg,var(--sys) 350deg,transparent 360deg);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;animation:beam 3.4s linear infinite}
@keyframes beam{to{--beam:360deg}}
.tool:hover{transform:translateY(-3px);border-color:transparent}
.tool:hover::before{opacity:1}
.tool .n{font-family:"IBM Plex Mono",monospace;font-size:14px;color:var(--ink);margin-bottom:8px;display:flex;align-items:center;gap:8px}
.tool .n i{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px color-mix(in oklab,var(--ok) 22%,transparent);flex:none}
.tool p{font-size:14px;color:var(--muted);line-height:1.55}

/* method */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--hair-soft);border:1px solid var(--hair-soft);border-radius:14px;overflow:hidden}
.step{background:var(--surface);padding:30px 26px;position:relative}
.step .ix{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.14em;color:var(--muted)}
.step .bar{height:2px;width:34px;margin:16px 0 18px;background:var(--sys)}
.step:nth-child(2) .bar{background:var(--act)}
.step:nth-child(3) .bar{background:var(--ok)}
.step h3{font-size:1.15rem;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.55}

/* services */
.svcs{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}
.svc{position:relative;background:var(--surface);border:1px solid var(--hair);border-radius:13px;padding:26px 24px;
  overflow:hidden;isolation:isolate;transition:transform .18s,border-color .18s}
.svc::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;z-index:-1;opacity:0;transition:opacity .25s;
  background:conic-gradient(from var(--beam),transparent 0 300deg,var(--act) 350deg,transparent 360deg);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;animation:beam 4s linear infinite}
.svc:hover{transform:translateY(-3px);border-color:transparent}
.svc:hover::before{opacity:1}
.svc .tag{font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.14em;color:var(--sys);text-transform:uppercase}
.svc h3{font-size:1.25rem;margin:14px 0 10px}
.svc p{font-size:14.5px;color:var(--ink-dim);line-height:1.6}

/* contact */
.contact{padding:clamp(64px,12vh,130px) 0;display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,6vw,72px);align-items:start}
.contact h2{font-size:clamp(1.9rem,4.4vw,2.9rem);max-width:15ch}
body[dir="rtl"] .contact h2{max-width:20ch}
.contact .cintro{color:var(--ink-dim);margin:20px 0 0;max-width:40ch}
.contact .mono{display:block;margin-top:20px;font-size:13px;color:var(--muted);letter-spacing:.06em}
form{display:grid;gap:16px;background:var(--surface);border:1px solid var(--hair);border-radius:14px;padding:26px 24px}
.fld{display:grid;gap:7px}
.fld label{font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.fld input,.fld textarea{
  background:var(--ground);border:1px solid var(--hair);border-radius:9px;color:var(--ink);
  font:400 15px/1.5 inherit;padding:11px 13px;width:100%;transition:border-color .16s;resize:vertical}
.fld input:focus,.fld textarea:focus{outline:none;border-color:var(--sys)}
.fld textarea{min-height:120px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
form button{margin-top:4px;justify-self:start}
body[dir="rtl"] form button{justify-self:end}
.fmsg{font-size:13.5px;min-height:1.2em}
.fmsg.ok{color:var(--ok)} .fmsg.err{color:#e5715e}
@media (max-width:820px){.contact{grid-template-columns:1fr}}

/* footer */
.foot{border-top:1px solid var(--hair-soft);padding:30px 0;display:flex;justify-content:space-between;
  align-items:center;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.foot .mono{color:var(--ink-dim);letter-spacing:.08em}
.foot nav{display:flex;gap:20px}
.foot nav a{color:var(--muted);text-decoration:none}
.foot nav a:hover{color:var(--ink)}

@media (max-width:900px){
  .nav-links{display:none}
  .steps{grid-template-columns:1fr}
}
@media (max-width:860px){
  .hero{grid-template-columns:1fr;gap:38px}
  .sch{order:-1;max-width:320px}
  h1{max-width:20ch}
}
@media (prefers-reduced-motion:reduce){
  *,*::before{animation:none!important;transition:none!important}
  .w,.reveal{opacity:1!important;filter:none!important;transform:none!important}
}