/* ============================================================
   Usa Volt — Brand Site
   Palette: Obsidian black · Electric blue · Chrome silver
   ============================================================ */
:root{
  --ink:#05070c;
  --ink-2:#0a0e16;
  --ink-3:#101725;
  --line:rgba(150,180,220,.14);
  --line-2:rgba(150,180,220,.28);

  --volt:#3da5ff;
  --volt-2:#7ec8ff;
  --volt-deep:#0b64c9;
  --volt-glow:rgba(61,165,255,.55);

  --chrome-1:#ffffff;
  --chrome-2:#dfe7f0;
  --chrome-3:#9fb0c4;
  --chrome-4:#6f8098;

  --txt:#e8eef7;
  --txt-dim:#9dabbe;
  --txt-mute:#6d7b8f;

  --r-s:10px; --r-m:16px; --r-l:24px; --r-xl:34px;
  --pad:clamp(20px,5vw,64px);
  --maxw:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-ar:"Tajawal","Cairo",system-ui,sans-serif;
  --font-en:"Chakra Petch","Rajdhani",system-ui,sans-serif;
  --font-body:"Tajawal",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-head:"Chakra Petch","Tajawal",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ink);color:var(--txt);
  font-family:var(--font-body);font-size:17px;line-height:1.75;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
body[dir="en"]{font-family:var(--font-en);letter-spacing:.1px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
::selection{background:var(--volt);color:#02060d}

/* ---------- ambient background ---------- */
.bg-fx{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bg-fx::before{
  content:"";position:absolute;inset:-20%;
  background:
    radial-gradient(60% 45% at 78% 8%,rgba(61,165,255,.16),transparent 62%),
    radial-gradient(50% 40% at 12% 72%,rgba(11,100,201,.14),transparent 65%);
  filter:blur(8px);
}
.bg-fx::after{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 20%,transparent 75%);
          mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 20%,transparent 75%);
}
main,header,footer{position:relative;z-index:1}

/* ---------- layout ---------- */
.wrap{width:min(100% - (var(--pad)*2),var(--maxw));margin-inline:auto}
section{padding-block:clamp(58px,7vw,104px);position:relative}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.76rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;
  color:var(--volt-2);margin:0 0 18px;
  padding:7px 16px;border:1px solid rgba(61,165,255,.3);border-radius:999px;
  background:linear-gradient(180deg,rgba(61,165,255,.14),rgba(61,165,255,.04));
  backdrop-filter:blur(6px);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--volt);box-shadow:0 0 10px var(--volt)}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:700;line-height:1.16;margin:0 0 .5em;letter-spacing:-.01em}
body[dir="rtl"] h1,body[dir="rtl"] h2,body[dir="rtl"] h3,body[dir="rtl"] h4{font-family:var(--font-ar);font-weight:800;letter-spacing:0}
h2{font-size:clamp(2rem,4.4vw,3.25rem)}
h3{font-size:clamp(1.25rem,2vw,1.55rem)}
.lede{font-size:clamp(1.02rem,1.5vw,1.18rem);color:var(--txt-dim);max-width:64ch;margin:0 0 34px}
.sec-head{max-width:820px;margin-bottom:clamp(30px,4vw,52px)}
.sec-head.center{margin-inline:auto;text-align:center}

.chrome-text{
  background:linear-gradient(180deg,#fff 4%,var(--chrome-2) 34%,var(--chrome-4) 58%,#fff 74%,var(--chrome-3) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  -webkit-text-fill-color:transparent;
  filter:drop-shadow(0 2px 10px rgba(0,0,0,.6));
}
.volt-text{
  background:linear-gradient(120deg,var(--volt-2),var(--volt) 45%,#c9e6ff);
  -webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 32px;border-radius:999px;font-weight:700;font-size:.98rem;
  letter-spacing:.02em;transition:.35s var(--ease);position:relative;overflow:hidden;
  border:1px solid transparent;white-space:nowrap;
}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{
  background:linear-gradient(135deg,var(--volt) 0%,var(--volt-deep) 100%);
  color:#fff;box-shadow:0 10px 34px -10px var(--volt-glow),inset 0 1px 0 rgba(255,255,255,.34);
}
.btn-primary::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.42) 50%,transparent 70%);
  transform:translateX(-140%);transition:transform .8s var(--ease);
}
.btn-primary:hover::after{transform:translateX(140%)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 46px -12px var(--volt-glow)}
.btn-ghost{
  border-color:var(--line-2);color:var(--txt);
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{border-color:var(--volt);color:var(--volt-2);transform:translateY(-2px)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- header ---------- */
.site-head{
  position:fixed;inset-inline:0;top:0;z-index:60;
  transition:.4s var(--ease);
  border-bottom:1px solid transparent;
}
.site-head.scrolled{
  background:rgba(5,7,12,.82);backdrop-filter:blur(18px) saturate(1.4);
  border-bottom-color:var(--line);
}
.head-in{display:flex;align-items:center;gap:20px;height:78px;transition:height .4s var(--ease)}
.site-head.scrolled .head-in{height:66px}
.brand{display:flex;align-items:center;flex:none;transition:.4s var(--ease)}
.brand img{height:40px;width:auto;filter:drop-shadow(0 2px 10px rgba(61,165,255,.3));transition:.4s var(--ease)}
.site-head.scrolled .brand img{height:34px}
.nav{display:flex;gap:4px;margin-inline-start:auto;align-items:center}
.nav a{
  padding:9px 15px;border-radius:999px;font-size:.93rem;font-weight:600;color:var(--txt-dim);
  transition:.28s var(--ease);position:relative;
}
.nav a:hover{color:var(--txt);background:rgba(255,255,255,.06)}
.nav a.active{color:var(--volt-2)}
.head-tools{display:flex;align-items:center;gap:10px;flex:none}
.lang-btn{
  display:flex;align-items:center;gap:7px;padding:9px 16px;border-radius:999px;
  border:1px solid var(--line-2);font-size:.85rem;font-weight:700;letter-spacing:.05em;
  color:var(--txt-dim);transition:.3s var(--ease);background:rgba(255,255,255,.03);
}
.lang-btn:hover{border-color:var(--volt);color:var(--volt-2)}
.lang-btn svg{width:15px;height:15px}
.burger{display:none;order:3;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-2);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;background:rgba(255,255,255,.03)}
.burger span{display:block;width:19px;height:2px;background:var(--txt);border-radius:2px;transition:.3s var(--ease)}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  min-height:100svh;display:flex;align-items:flex-end;
  padding-block:120px clamp(48px,7vw,84px);
  overflow:hidden;isolation:isolate;
}
.hero-bg{position:absolute;inset:0;z-index:-2;overflow:hidden}
.hero-bg img{
  width:100%;height:100%;object-fit:cover;object-position:56% 42%;
  transform:scale(1.08);animation:kenburns 26s var(--ease) infinite alternate;
}
@keyframes kenburns{from{transform:scale(1.06) translate3d(0,0,0)}to{transform:scale(1.16) translate3d(-1.5%,-1.5%,0)}}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(to top,var(--ink) 2%,rgba(5,7,12,.72) 34%,rgba(5,7,12,.28) 62%,rgba(5,7,12,.62) 100%),
    linear-gradient(to right,rgba(5,7,12,.86) 0%,rgba(5,7,12,.2) 52%,transparent 100%);
}
body[dir="ltr"] .hero-bg::after{
  background:
    linear-gradient(to top,var(--ink) 2%,rgba(5,7,12,.72) 34%,rgba(5,7,12,.28) 62%,rgba(5,7,12,.62) 100%),
    linear-gradient(to left,rgba(5,7,12,.86) 0%,rgba(5,7,12,.2) 52%,transparent 100%);
}
.hero-in{max-width:730px}
.hero h1{font-size:clamp(2.5rem,6.4vw,5rem);margin-bottom:22px}
.hero h1 .l2{display:block}
.hero .lede{font-size:clamp(1.05rem,1.7vw,1.3rem);color:#c3d0e0;margin-bottom:36px}
.hero-stats{
  display:flex;gap:clamp(20px,4vw,48px);flex-wrap:wrap;margin-top:44px;
  padding-top:30px;border-top:1px solid var(--line);
}
.hstat b{direction:ltr;unicode-bidi:isolate;
  display:block;font-family:var(--font-head);font-size:clamp(1.8rem,3.4vw,2.6rem);
  font-weight:700;line-height:1;margin-bottom:8px;
}
.hstat span{font-size:.83rem;color:var(--txt-mute);letter-spacing:.1em;text-transform:uppercase;font-weight:600}
.scroll-cue{
  position:absolute;inset-inline-end:var(--pad);bottom:44px;display:flex;flex-direction:column;
  align-items:center;gap:10px;font-size:.7rem;letter-spacing:.24em;color:var(--txt-mute);
  writing-mode:vertical-rl;text-transform:uppercase;
}
.scroll-cue i{display:block;width:1px;height:60px;background:linear-gradient(var(--volt),transparent);animation:cue 2.2s infinite}
@keyframes cue{0%,100%{opacity:.25;transform:scaleY(.5)}50%{opacity:1;transform:scaleY(1)}}

/* ---------- marquee ---------- */
.marquee{
  border-block:1px solid var(--line);padding-block:18px;overflow:hidden;
  background:linear-gradient(180deg,rgba(61,165,255,.05),transparent);
}
.marquee-track{display:flex;gap:56px;width:max-content;direction:ltr;animation:slide 34s linear infinite}
@keyframes slide{to{transform:translateX(-50%)}}
.marquee-track span{
  display:inline-flex;align-items:center;gap:14px;font-family:var(--font-head);font-weight:700;
  font-size:.95rem;letter-spacing:.14em;text-transform:uppercase;color:var(--chrome-4);white-space:nowrap;
}
.marquee-track span::before{content:"";width:7px;height:7px;background:var(--volt);
  transform:rotate(45deg);box-shadow:0 0 12px var(--volt)}

/* ---------- feature grid ---------- */
.grid{display:grid;gap:22px}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.g-2{grid-template-columns:repeat(2,1fr)}

.card{
  position:relative;padding:34px 30px;border-radius:var(--r-l);
  background:linear-gradient(165deg,rgba(255,255,255,.062),rgba(255,255,255,.014));
  border:1px solid var(--line);overflow:hidden;transition:.45s var(--ease);
  backdrop-filter:blur(10px);
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(140deg,rgba(61,165,255,.6),transparent 42%,transparent 62%,rgba(126,200,255,.34));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:0;transition:opacity .45s var(--ease);pointer-events:none;
}
.card:hover{transform:translateY(-6px);background:linear-gradient(165deg,rgba(255,255,255,.09),rgba(255,255,255,.02))}
.card:hover::before{opacity:1}
.card .ico{
  width:54px;height:54px;border-radius:16px;display:grid;place-items:center;margin-bottom:22px;
  background:linear-gradient(150deg,rgba(61,165,255,.24),rgba(61,165,255,.05));
  border:1px solid rgba(61,165,255,.3);color:var(--volt-2);
  box-shadow:0 8px 24px -12px var(--volt-glow);transition:.45s var(--ease);
}
.card:hover .ico{transform:scale(1.07) rotate(-4deg);color:#fff;
  background:linear-gradient(150deg,var(--volt),var(--volt-deep));border-color:transparent}
.card .ico svg{width:26px;height:26px}
.card h3{margin-bottom:10px}
.card p{margin:0;color:var(--txt-dim);font-size:.98rem;line-height:1.7}

/* ---------- split showcase ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(34px,5vw,72px);align-items:center}
.split.rev{direction:ltr}
.split.rev>*{direction:inherit}
.shot{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line-2);
  box-shadow:0 40px 90px -40px rgba(0,0,0,.95),0 0 0 1px rgba(255,255,255,.04) inset;
}
.shot img{width:100%;height:100%;object-fit:cover;transition:1.2s var(--ease)}
.shot:hover img{transform:scale(1.04)}
.shot::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(200deg,rgba(61,165,255,.1),transparent 42%);
}
.shot .tag{
  position:absolute;inset-inline-start:20px;top:20px;z-index:2;
  padding:9px 18px;border-radius:999px;font-size:.78rem;font-weight:800;letter-spacing:.1em;
  background:rgba(5,7,12,.7);border:1px solid rgba(61,165,255,.42);color:var(--volt-2);
  backdrop-filter:blur(12px);text-transform:uppercase;
}
.shot.glow{box-shadow:0 40px 90px -40px rgba(0,0,0,.95),0 0 70px -30px var(--volt-glow)}

.spec-list{list-style:none;padding:0;margin:30px 0 0;display:grid;gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden}
.spec-list li{display:flex;justify-content:space-between;align-items:center;gap:18px;
  padding:16px 22px;background:var(--ink-2);font-size:.96rem;transition:.3s var(--ease)}
.spec-list li:hover{background:var(--ink-3)}
.spec-list li b{color:var(--txt-mute);font-weight:600}
.spec-list li span{font-family:var(--font-head);font-weight:700;color:var(--volt-2);font-size:1.02rem;direction:ltr;unicode-bidi:isolate;text-align:end}
.spec-list li span.txt{direction:inherit;font-family:inherit;font-size:.96rem}

/* ---------- authenticity block ---------- */
.auth{position:relative;overflow:hidden}
.auth-in{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(34px,5vw,70px);align-items:center;
  padding:clamp(30px,4vw,54px);border-radius:var(--r-xl);
  background:linear-gradient(150deg,rgba(255,255,255,.05),rgba(255,255,255,.01));
  border:1px solid var(--line);backdrop-filter:blur(10px);
}
.auth-photo{border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line-2);position:relative;
  box-shadow:0 40px 80px -40px #000}
.auth-photo img{width:100%}
.auth-photo .stamp{
  position:absolute;inset-inline-end:16px;bottom:16px;z-index:2;
  width:96px;height:96px;border-radius:50%;display:grid;place-items:center;text-align:center;
  background:radial-gradient(circle at 40% 30%,rgba(61,165,255,.95),var(--volt-deep));
  border:2px solid rgba(255,255,255,.5);color:#fff;font-weight:800;font-size:.66rem;line-height:1.3;
  box-shadow:0 14px 34px -10px var(--volt-glow);letter-spacing:.04em;
  animation:float 5s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
.check-list{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:15px}
.check-list li{display:flex;gap:14px;align-items:flex-start;font-size:1rem;color:var(--txt-dim)}
.check-list li::before{
  content:"";flex:none;width:24px;height:24px;border-radius:50%;margin-top:3px;
  background:rgba(61,165,255,.16);border:1px solid rgba(61,165,255,.45);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237ec8ff' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  background-size:14px;background-position:center;background-repeat:no-repeat;
}
.check-list li b{color:var(--txt);font-weight:700}

/* ---------- comparison ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:12px}
.cmp{
  border-radius:var(--r-l);padding:32px 30px;border:1px solid var(--line);position:relative;overflow:hidden;
  background:linear-gradient(165deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
}
.cmp.win{border-color:rgba(61,165,255,.4);
  background:linear-gradient(165deg,rgba(61,165,255,.13),rgba(61,165,255,.02));
  box-shadow:0 0 60px -30px var(--volt-glow)}
.cmp h4{font-size:1.15rem;margin-bottom:4px;display:flex;align-items:center;gap:10px}
.cmp .sub{font-size:.82rem;color:var(--txt-mute);margin:0 0 24px;letter-spacing:.06em;text-transform:uppercase;font-weight:600}
.cmp ul{list-style:none;padding:0;margin:0;display:grid;gap:13px}
.cmp li{display:flex;gap:11px;align-items:center;font-size:.95rem;color:var(--txt-dim)}
.cmp li i{flex:none;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-size:.72rem;font-weight:900}
.cmp.lose li i{background:rgba(255,90,90,.15);color:#ff8f8f;border:1px solid rgba(255,90,90,.3)}
.cmp.win li i{background:rgba(61,165,255,.2);color:var(--volt-2);border:1px solid rgba(61,165,255,.4)}
.cmp.win li{color:var(--txt)}
.beam-bar{height:9px;border-radius:99px;margin-top:26px;background:rgba(255,255,255,.07);overflow:hidden;position:relative}
.beam-bar i{display:block;height:100%;border-radius:99px;width:0;transition:width 1.4s var(--ease)}
.cmp.lose .beam-bar i{background:linear-gradient(90deg,#8a6b3a,#e0b062)}
.cmp.win .beam-bar i{background:linear-gradient(90deg,var(--volt-deep),var(--volt),#dff0ff);box-shadow:0 0 18px var(--volt-glow)}
.in-view .beam-bar i{width:var(--w)}
.beam-meta{display:flex;justify-content:space-between;margin-top:10px;font-size:.8rem;color:var(--txt-mute);font-weight:600}
.beam-meta span:last-child{direction:ltr;unicode-bidi:isolate;color:var(--txt-dim)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{
  position:relative;padding:32px 26px 28px;border-radius:var(--r-l);
  background:linear-gradient(165deg,rgba(255,255,255,.05),rgba(255,255,255,.012));
  border:1px solid var(--line);transition:.45s var(--ease);
}
.step:hover{border-color:rgba(61,165,255,.4);transform:translateY(-5px)}
.step::before{
  counter-increment:s;content:counter(s,decimal-leading-zero);
  font-family:var(--font-head);font-size:2.7rem;font-weight:700;line-height:1;
  display:block;margin-bottom:16px;
  background:linear-gradient(180deg,var(--volt-2),rgba(61,165,255,.18));
  -webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;
}
.step h3{font-size:1.08rem;margin-bottom:8px}
.step p{margin:0;font-size:.93rem;color:var(--txt-dim);line-height:1.65}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:210px;gap:16px}
.gallery .gitem:nth-child(1){grid-column:span 2;grid-row:span 2}
.gallery .gitem:nth-child(2){grid-row:span 2}
.gallery .gitem:nth-child(6){grid-column:span 3}
.gitem{position:relative;border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);cursor:pointer}
.gitem img{width:100%;height:100%;object-fit:cover;transition:.9s var(--ease)}
.gitem:hover img{transform:scale(1.07)}
.gitem::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(5,7,12,.75),transparent 55%);
  opacity:0;transition:.4s var(--ease)}
.gitem:hover::after{opacity:1}
.gitem figcaption{
  position:absolute;inset-inline:16px;bottom:14px;z-index:2;font-size:.85rem;font-weight:700;
  opacity:0;transform:translateY(10px);transition:.4s var(--ease);
}
.gitem:hover figcaption{opacity:1;transform:none}

/* ---------- faq ---------- */
.faq{max-width:880px;margin-inline:auto;display:grid;gap:12px}
.qa{border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  background:linear-gradient(165deg,rgba(255,255,255,.04),rgba(255,255,255,.01));transition:.35s var(--ease)}
.qa.open{border-color:rgba(61,165,255,.38);background:linear-gradient(165deg,rgba(61,165,255,.08),rgba(255,255,255,.01))}
.qa button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:21px 26px;text-align:start;font-weight:700;font-size:1.02rem;font-family:inherit}
.qa button i{flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-2);
  display:grid;place-items:center;transition:.35s var(--ease);position:relative}
.qa button i::before,.qa button i::after{content:"";position:absolute;background:var(--txt-dim);border-radius:2px;transition:.35s var(--ease)}
.qa button i::before{width:11px;height:2px}
.qa button i::after{width:2px;height:11px}
.qa.open button i{background:var(--volt);border-color:var(--volt);transform:rotate(180deg)}
.qa.open button i::before,.qa.open button i::after{background:#fff}
.qa.open button i::after{height:0}
.qa .ans{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.qa .ans p{margin:0;padding:0 26px 24px;color:var(--txt-dim);font-size:.97rem;line-height:1.75}

/* ---------- cta band ---------- */
.cta{
  position:relative;border-radius:var(--r-xl);overflow:hidden;padding:clamp(46px,7vw,86px) var(--pad);
  text-align:center;border:1px solid rgba(61,165,255,.28);
  background:linear-gradient(150deg,rgba(11,100,201,.24),rgba(5,7,12,.6) 55%,rgba(61,165,255,.14));
}
.cta::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:radial-gradient(60% 90% at 50% 118%,rgba(61,165,255,.4),transparent 68%);
}
.cta>*{position:relative;z-index:1}
.cta h2{margin-bottom:14px}
.cta p{color:#c3d0e0;max-width:60ch;margin:0 auto 32px}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--line);margin-top:clamp(40px,5vw,72px);padding-block:60px 32px;
  background:linear-gradient(180deg,transparent,rgba(61,165,255,.045))}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;margin-bottom:52px}
.foot-brand img{height:44px;margin-bottom:20px}
.foot-brand p{color:var(--txt-mute);font-size:.94rem;margin:0;max-width:38ch}
.foot-col h4{font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--txt-mute);margin-bottom:18px;font-weight:700}
.foot-col ul{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.foot-col a{color:var(--txt-dim);font-size:.95rem;transition:.28s var(--ease)}
.foot-col a:hover{color:var(--volt-2)}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line-2);color:var(--txt-dim);transition:.32s var(--ease);background:rgba(255,255,255,.03)}
.socials a:hover{border-color:var(--volt);color:var(--volt-2);transform:translateY(-3px);
  box-shadow:0 10px 24px -12px var(--volt-glow)}
.socials svg{width:19px;height:19px}
.foot-bot{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding-top:26px;border-top:1px solid var(--line);color:var(--txt-mute);font-size:.87rem}

/* ---------- reveal ---------- */
[data-rv]{opacity:0;transform:translateY(28px);transition:opacity .85s var(--ease),transform .85s var(--ease)}
[data-rv].in-view{opacity:1;transform:none}
[data-rv].d1{transition-delay:.09s}[data-rv].d2{transition-delay:.18s}
[data-rv].d3{transition-delay:.27s}[data-rv].d4{transition-delay:.36s}

/* ---------- lightbox ---------- */
.lb{position:fixed;inset:0;z-index:100;background:rgba(3,5,9,.95);backdrop-filter:blur(14px);
  display:grid;place-items:center;padding:5vw;opacity:0;visibility:hidden;transition:.4s var(--ease)}
.lb.on{opacity:1;visibility:visible}
.lb img{max-width:100%;max-height:88vh;border-radius:var(--r-m);border:1px solid var(--line-2);
  transform:scale(.94);transition:.45s var(--ease);box-shadow:0 40px 100px -30px #000}
.lb.on img{transform:none}
.lb-x{position:absolute;top:26px;inset-inline-end:26px;width:48px;height:48px;border-radius:50%;
  border:1px solid var(--line-2);display:grid;place-items:center;color:var(--txt);font-size:1.3rem;
  background:rgba(255,255,255,.05);transition:.3s var(--ease)}
.lb-x:hover{border-color:var(--volt);color:var(--volt-2);transform:rotate(90deg)}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .g-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:900px){
  .nav{
    position:fixed;inset-block:0 auto;top:0;inset-inline-end:0;height:100svh;width:min(84vw,340px);
    flex-direction:column;align-items:stretch;gap:6px;padding:100px 24px 30px;
    background:rgba(7,10,16,.97);backdrop-filter:blur(22px);border-inline-start:1px solid var(--line);
    transform:translateX(110%);transition:transform .45s var(--ease);margin:0;
  }
  body[dir="rtl"] .nav{transform:translateX(-110%)}
  .nav.open{transform:none !important}
  .nav a{padding:14px 18px;font-size:1.02rem;border-radius:var(--r-s)}
  .burger{display:flex}
  .head-in{justify-content:space-between}
  .head-tools{order:2;margin-inline-start:auto}
  .brand{order:1}
  .split,.auth-in{grid-template-columns:1fr}
  .split.rev{direction:inherit}
  .g-3{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:180px}
  .gallery .gitem:nth-child(1){grid-column:span 2;grid-row:span 2}
  .gallery .gitem:nth-child(2){grid-row:span 1}
  .gallery .gitem:nth-child(6){grid-column:span 2}
  .scroll-cue{display:none}
}
@media (max-width:620px){
  body{font-size:16px}
  .g-4,.steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero{min-height:92svh}
  .hero-stats{gap:22px 30px}
  .gallery{grid-template-columns:1fr;grid-auto-rows:215px}
  .gallery .gitem:nth-child(n){grid-column:span 1;grid-row:span 1}
  .btn{width:100%}
  .auth-photo .stamp{width:78px;height:78px;font-size:.58rem}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* ---------- fitments ---------- */
.fit-tools{
  display:flex;gap:14px;flex-wrap:wrap;align-items:center;justify-content:space-between;
  margin-bottom:28px;
}
.fit-tabs{display:flex;gap:8px;flex-wrap:wrap}
.fit-tab{
  padding:10px 20px;border-radius:999px;font-size:.88rem;font-weight:700;letter-spacing:.03em;
  border:1px solid var(--line-2);color:var(--txt-dim);transition:.3s var(--ease);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.01));
}
.fit-tab:hover{border-color:var(--volt);color:var(--volt-2)}
.fit-tab.on{
  background:linear-gradient(135deg,var(--volt),var(--volt-deep));border-color:transparent;color:#fff;
  box-shadow:0 8px 24px -12px var(--volt-glow);
}
.fit-search{position:relative;flex:1;min-width:230px;max-width:340px}
.fit-search svg{
  position:absolute;inset-inline-start:16px;top:50%;transform:translateY(-50%);
  width:17px;height:17px;color:var(--txt-mute);pointer-events:none;
}
.fit-search input{
  width:100%;padding:13px 18px;padding-inline-start:44px;border-radius:999px;
  background:rgba(255,255,255,.045);border:1px solid var(--line-2);color:var(--txt);
  font-family:inherit;font-size:.93rem;transition:.3s var(--ease);outline:none;
}
.fit-search input::placeholder{color:var(--txt-mute)}
.fit-search input:focus{border-color:var(--volt);background:rgba(61,165,255,.08);
  box-shadow:0 0 0 4px rgba(61,165,255,.12)}

.fit-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.fit{
  position:relative;padding:22px 18px 20px;border-radius:var(--r-m);text-align:center;
  background:linear-gradient(165deg,rgba(255,255,255,.055),rgba(255,255,255,.012));
  border:1px solid var(--line);transition:.35s var(--ease);overflow:hidden;
}
.fit::after{
  content:"";position:absolute;inset-inline:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--volt),transparent);
  opacity:0;transition:opacity .35s var(--ease);
}
.fit:hover{transform:translateY(-4px);border-color:rgba(61,165,255,.4);
  background:linear-gradient(165deg,rgba(61,165,255,.1),rgba(255,255,255,.02))}
.fit:hover::after{opacity:1}
.fit .code{
  display:block;font-family:var(--font-head);font-weight:700;font-size:1.45rem;line-height:1.1;
  direction:ltr;unicode-bidi:isolate;margin-bottom:5px;
  background:linear-gradient(180deg,#fff 10%,var(--chrome-2) 45%,var(--chrome-4) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;
}
.fit .alt{display:block;font-size:.73rem;line-height:1.25;height:1.25em;color:var(--txt-mute);font-weight:600;
  direction:ltr;unicode-bidi:isolate;margin-bottom:11px;letter-spacing:.04em;overflow:hidden}
.fit .use{display:block;font-size:.8rem;color:var(--txt-dim);line-height:1.45}
.fit .kind{
  display:inline-block;margin-top:12px;padding:4px 11px;border-radius:999px;
  font-size:.66rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase;
}
.fit[data-kind="led"] .kind{background:rgba(61,165,255,.16);color:var(--volt-2);border:1px solid rgba(61,165,255,.32)}
.fit[data-kind="hid"] .kind{background:rgba(190,205,225,.12);color:var(--chrome-2);border:1px solid rgba(190,205,225,.26)}
.fit.hide{display:none}
.fit-empty{
  grid-column:1/-1;text-align:center;padding:46px 20px;color:var(--txt-mute);
  border:1px dashed var(--line-2);border-radius:var(--r-m);font-size:.95rem;
}
.fit-note{
  margin-top:26px;padding:18px 24px;border-radius:var(--r-m);font-size:.92rem;color:var(--txt-dim);
  border:1px solid var(--line);background:linear-gradient(165deg,rgba(61,165,255,.07),rgba(255,255,255,.01));
  display:flex;gap:14px;align-items:flex-start;
}
.fit-note svg{width:20px;height:20px;flex:none;color:var(--volt-2);margin-top:2px}
@media (max-width:1080px){.fit-grid{grid-template-columns:repeat(4,1fr)}}
@media (max-width:900px){.fit-grid{grid-template-columns:repeat(3,1fr)}
  .fit-tools{flex-direction:column;align-items:stretch}
  .fit-search{max-width:none}}
@media (max-width:620px){.fit-grid{grid-template-columns:repeat(2,1fr);gap:11px}
  .fit{padding:18px 12px 16px}.fit .code{font-size:1.2rem}}