/* ============================================================
   AERONQIS — Autonomous Aerial Systems
   High-end tech theme · deep navy / electric blue / silver
   ============================================================ */

:root{
  --navy-950:#02040f;
  --navy-900:#04081a;
  --navy-800:#070f29;
  --navy-700:#0b1740;
  --blue:#2f7bff;
  --blue-bright:#4d9bff;
  --cyan:#37c6ff;
  --violet:#7c5cff;
  --amber:#ffb02e;
  --silver:#c7d3e6;
  --text:#e8eefb;
  --text-dim:#8ea2c4;
  --line:rgba(120,160,255,.16);
  --glass:rgba(13,26,61,.55);
  --radius:22px;
  --header-h:78px;
  --font-head:'Orbitron',sans-serif;
  --font-ui:'Rajdhani',sans-serif;
  --font-body:'Inter',sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px)}
body{
  font-family:var(--font-body);
  background:var(--navy-950);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}

.container{width:min(1240px,92%);margin:0 auto}
.section{position:relative;padding:clamp(76px,9vw,130px) 0;overflow:hidden}

/* ---------- typography ---------- */
.eyebrow{
  font-family:var(--font-ui);
  font-weight:600;
  font-size:clamp(13px,1.4vw,16px);
  letter-spacing:.38em;
  text-transform:uppercase;
  color:rgba(150,180,235,.7);
  margin-bottom:20px;
}
.eyebrow-center{text-align:center}
.section-title{
  font-family:var(--font-head);
  font-weight:800;
  font-size:clamp(28px,4vw,50px);
  line-height:1.14;
  letter-spacing:.02em;
  margin-bottom:24px;
  text-transform:uppercase;
}
.section-title span{
  background:linear-gradient(95deg,var(--blue-bright) 10%,var(--cyan) 90%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.section-sub{
  text-align:center;
  color:var(--text-dim);
  font-size:clamp(15px,1.6vw,18px);
  max-width:720px;
  margin:18px auto 0;
}
.mega-title{
  font-family:var(--font-head);
  font-weight:900;
  font-size:clamp(30px,6vw,70px);
  line-height:1.08;
  text-align:center;
  letter-spacing:.05em;
  text-transform:uppercase;
  color:#fff;
  text-shadow:0 0 38px rgba(47,123,255,.45);
}
.section-head{margin-bottom:clamp(44px,5vw,72px)}
.section-head .section-title{text-align:center}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 32px;border-radius:999px;
  font-family:var(--font-ui);font-weight:700;
  font-size:16px;letter-spacing:.1em;text-transform:uppercase;
  transition:transform .35s ease,box-shadow .35s ease,background .35s,border-color .35s;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;transition:transform .35s}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,#3d86ff 0%,#1f5fe0 100%);
  box-shadow:0 0 0 1px rgba(120,170,255,.35),0 12px 34px -8px rgba(47,123,255,.65);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(140,190,255,.6),0 18px 44px -8px rgba(47,123,255,.85)}
.btn-ghost{
  color:var(--silver);
  border:1px solid rgba(150,185,250,.38);
  background:rgba(47,123,255,.06);
}
.btn-ghost:hover{border-color:var(--cyan);color:#fff;background:rgba(55,198,255,.1);transform:translateY(-3px)}
.btn-sm{padding:11px 24px;font-size:14px}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(38px);transition:opacity .9s ease,transform .9s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}

/* ============================================================
   PRELOADER
   ============================================================ */
.preloader{
  position:fixed;top:0;right:0;bottom:0;left:0;z-index:300;
  background:radial-gradient(ellipse at 50% 40%,#0a1740 0%,#04081a 55%,#02040f 100%);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .7s ease,visibility .7s;
}
.preloader.done{opacity:0;visibility:hidden}
.preloader-inner{text-align:center;width:min(320px,80%)}
.preloader-logo{width:110px;margin:0 auto 26px;animation:pulseLogo 1.6s ease-in-out infinite}
@keyframes pulseLogo{0%,100%{filter:drop-shadow(0 0 12px rgba(47,123,255,.5));transform:scale(1)}50%{filter:drop-shadow(0 0 34px rgba(77,155,255,.9));transform:scale(1.05)}}
.preloader-bar{height:3px;border-radius:3px;background:rgba(120,160,255,.18);overflow:hidden}
.preloader-bar span{display:block;height:100%;width:0;border-radius:3px;background:linear-gradient(90deg,var(--blue),var(--cyan));box-shadow:0 0 12px var(--cyan)}
.preloader-text{
  margin-top:16px;font-family:var(--font-ui);font-size:13px;
  letter-spacing:.3em;color:var(--text-dim);
  display:flex;justify-content:space-between;
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.scroll-progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:200;
  background:linear-gradient(90deg,var(--blue),var(--cyan));
  box-shadow:0 0 10px var(--cyan);
}
.header{
  position:fixed;top:0;left:0;right:0;z-index:150;
  transition:background .4s,border-color .4s,backdrop-filter .4s;
  border-bottom:1px solid transparent;
}
.header.scrolled{
  background:rgba(4,9,24,.82);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
}
.header-inner{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-logo{width:46px;height:46px;object-fit:contain;filter:drop-shadow(0 0 10px rgba(47,123,255,.55))}
.brand-name{
  font-family:var(--font-head);font-weight:800;font-size:20px;letter-spacing:.12em;
  background:linear-gradient(180deg,#fff 0%,#9db8e8 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.nav{display:flex;gap:34px}
.nav-link{
  position:relative;font-family:var(--font-ui);font-weight:600;
  font-size:16px;letter-spacing:.08em;color:var(--text-dim);
  padding:6px 2px;transition:color .3s;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:linear-gradient(90deg,var(--blue),var(--cyan));
  border-radius:2px;transition:width .35s;
}
.nav-link:hover,.nav-link.active{color:#fff}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:14px}
.burger{display:none;flex-direction:column;gap:5px;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:12px}
.burger span{width:20px;height:2px;background:#dce6fb;border-radius:2px;transition:transform .35s,opacity .35s}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* mobile menu */
.mobile-menu{
  position:fixed;top:0;right:0;bottom:0;left:0;z-index:140;
  background:rgba(3,7,20,.96);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  opacity:0;visibility:hidden;transition:opacity .4s,visibility .4s;
}
.mobile-menu.is-open{opacity:1;visibility:visible}
.mobile-nav{display:flex;flex-direction:column;align-items:center;gap:6px}
.mobile-nav a{
  font-family:var(--font-head);font-weight:700;font-size:clamp(24px,6vw,34px);
  letter-spacing:.12em;color:var(--silver);padding:10px 24px;transition:color .3s,transform .3s;
}
.mobile-nav a:hover{color:var(--cyan);transform:translateX(6px)}
.mobile-contact{color:var(--cyan)!important;font-size:20px!important}
.mobile-socials{display:flex;gap:22px;margin-top:36px}
.mobile-socials a{
  width:48px;height:48px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-dim);transition:.3s;
}
.mobile-socials a:hover{color:var(--cyan);border-color:var(--cyan);box-shadow:0 0 18px rgba(55,198,255,.4)}
.mobile-socials svg{width:20px;height:20px;fill:currentColor}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;min-height:100svh;overflow:hidden;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;
  padding:calc(var(--header-h) + 50px) 6% 110px;
  background:radial-gradient(1100px 600px at 50% -10%,#0c1c4d 0%,#060d26 42%,#02040f 100%);
}
#starfield{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}
.hero-glow{
  position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,123,255,.18) 0%,transparent 65%);
  left:50%;top:38%;transform:translate(-50%,-50%);
  pointer-events:none;transition:opacity .4s;
}
.hero-planet{
  position:absolute;left:50%;bottom:-62vw;width:150vw;height:76vw;
  transform:translateX(-50%);
  border-radius:50%;
  background:radial-gradient(60% 60% at 50% 0%,rgba(30,80,200,.22) 0%,rgba(8,18,48,.35) 45%,transparent 72%);
  border-top:2px solid rgba(77,155,255,.55);
  box-shadow:0 -30px 90px -30px rgba(47,123,255,.55),inset 0 60px 120px -50px rgba(47,123,255,.35);
  pointer-events:none;
}
.hero-planet::before{
  content:"";position:absolute;top:-14px;left:18%;right:18%;height:8px;border-radius:50%;
  background:linear-gradient(90deg,transparent,rgba(90,170,255,.9),transparent);
  filter:blur(3px);
}

/* orbit + logo */
.hero-orbit{
  position:relative;width:clamp(230px,30vw,350px);aspect-ratio:1;
  margin-bottom:clamp(18px,3vw,34px);
  animation:floatY 6s ease-in-out infinite;
}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.hero-logo{
  position:relative;z-index:3;width:72%;height:72%;margin:14%;
  object-fit:contain;
  filter:drop-shadow(0 0 26px rgba(47,123,255,.75)) drop-shadow(0 0 70px rgba(47,123,255,.35));
}
.orbit-ring{
  position:absolute;border-radius:50%;border:1px dashed rgba(120,170,255,.3);
  top:0;right:0;bottom:0;left:0;
}
.ring-1{animation:spin 26s linear infinite}
.ring-2{top:9%;right:9%;bottom:9%;left:9%;border-style:solid;border-color:rgba(77,155,255,.18);border-top-color:rgba(55,198,255,.8);animation:spin 16s linear infinite reverse}
.ring-3{top:-7%;right:-7%;bottom:-7%;left:-7%;border-color:rgba(47,123,255,.14);border-right-color:rgba(47,123,255,.7);animation:spin 36s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.orbit-dot{position:absolute;width:9px;height:9px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px 2px rgba(55,198,255,.8);z-index:2}
.dot-a{top:0;left:50%;animation:spin 16s linear infinite reverse;transform-origin:0 calc(clamp(230px,30vw,350px)/2)}
.dot-b{bottom:6%;right:9%;width:7px;height:7px;background:var(--blue-bright);box-shadow:0 0 12px 2px rgba(77,155,255,.8);animation:spin 26s linear infinite}
.dot-c{top:12%;left:3%;width:6px;height:6px;background:#fff;box-shadow:0 0 10px 2px rgba(255,255,255,.7);animation:spin 36s linear infinite reverse}

.hero-content{position:relative;z-index:5;max-width:880px}
.hero-eyebrow{
  display:flex;align-items:center;justify-content:center;gap:16px;
  font-family:var(--font-ui);font-weight:600;font-size:clamp(12px,1.3vw,15px);
  letter-spacing:.45em;color:var(--blue-bright);margin-bottom:18px;
}
.hero-eyebrow span{width:clamp(28px,5vw,64px);height:1px;background:linear-gradient(90deg,transparent,var(--blue-bright))}
.hero-eyebrow span:last-child{background:linear-gradient(90deg,var(--blue-bright),transparent)}
.hero-title{
  font-family:var(--font-head);font-weight:900;
  font-size:clamp(44px,9.5vw,118px);
  line-height:1;letter-spacing:.06em;
  background:linear-gradient(180deg,#ffffff 0%,#bcd2f8 45%,#5f86d8 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  filter:drop-shadow(0 0 34px rgba(47,123,255,.55));
  margin-bottom:22px;
}
.hero-sub{
  max-width:680px;margin:0 auto 36px;
  color:var(--text-dim);font-size:clamp(15px,1.6vw,18px);line-height:1.8;
}
.hero-actions{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin-bottom:34px}
.hero-socials{display:flex;gap:16px;justify-content:center}
.hero-socials a{
  width:46px;height:46px;border-radius:50%;
  border:1px solid rgba(150,185,250,.3);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-dim);transition:.35s;
}
.hero-socials a:hover{color:#fff;border-color:var(--cyan);background:rgba(55,198,255,.1);box-shadow:0 0 22px rgba(55,198,255,.45);transform:translateY(-3px)}
.hero-socials svg{width:19px;height:19px;fill:currentColor}

.scroll-hint{
  position:absolute;bottom:30px;left:50%;transform:translateX(-50%);
  z-index:5;display:flex;flex-direction:column;align-items:center;gap:10px;
  color:var(--text-dim);
}
.mouse{width:24px;height:38px;border:1.5px solid rgba(150,185,250,.45);border-radius:14px;display:flex;justify-content:center;padding-top:7px}
.mouse span{width:3px;height:8px;border-radius:3px;background:var(--cyan);animation:wheel 1.6s ease-in-out infinite}
@keyframes wheel{0%{transform:translateY(0);opacity:1}70%{transform:translateY(10px);opacity:0}100%{opacity:0}}
.scroll-text{font-family:var(--font-ui);font-size:11px;letter-spacing:.4em}

/* ============================================================
   TICKER
   ============================================================ */
.ticker{
  position:relative;z-index:10;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(6,13,34,.7);
  padding:16px 0;overflow:hidden;
}
.ticker-track{display:inline-flex;align-items:center;white-space:nowrap;animation:marquee 32s linear infinite}
.ticker:hover .ticker-track{animation-play-state:paused}
.ticker-track span{
  font-family:var(--font-head);font-weight:600;font-size:14px;letter-spacing:.28em;
  color:rgba(180,200,235,.5);padding:0 26px;
}
.ticker-track i{font-style:normal;color:var(--cyan);font-size:13px;text-shadow:0 0 10px var(--cyan)}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ============================================================
   SHARED SECTION BACKGROUNDS
   ============================================================ */
.section-bg{
  position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;
  background:radial-gradient(700px 460px at 8% 30%,rgba(47,123,255,.13),transparent 70%);
}
.section-bg-right{background:radial-gradient(700px 460px at 95% 20%,rgba(124,92,255,.12),transparent 70%)}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(44px,6vw,90px);align-items:center}
.about-desc{color:var(--text-dim);font-size:clamp(15px,1.55vw,17px);max-width:560px}
.about-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:42px;max-width:620px}
.stat strong{
  display:block;font-family:var(--font-head);font-weight:800;
  font-size:clamp(22px,2.6vw,32px);color:#fff;line-height:1.1;
  text-shadow:0 0 22px rgba(47,123,255,.45);
}
.stat span{font-family:var(--font-ui);font-size:13px;letter-spacing:.14em;color:var(--text-dim);text-transform:uppercase}

.about-visual{position:relative;padding:10px}
.frame-corners{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 40px 90px -30px rgba(20,60,170,.55);
}
.frame-corners::after{
  content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:5;
  background:linear-gradient(180deg,rgba(47,123,255,.14),transparent 30%,transparent 70%,rgba(4,10,30,.45));
  pointer-events:none;
}

/* holographic tech scene (shared) */
.about-scene{
  aspect-ratio:16/11;
  background:radial-gradient(80% 80% at 50% 42%,#0c1d52 0%,#070f2c 55%,#03061a 100%);
}
.scene-grid{
  position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;opacity:.65;
  background-image:linear-gradient(rgba(55,198,255,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(55,198,255,.09) 1px,transparent 1px);
  background-size:30px 30px;
  mask-image:radial-gradient(circle at 50% 45%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 45%,#000 30%,transparent 78%);
}
.crosshair-h,.crosshair-v{position:absolute;pointer-events:none;background:rgba(90,170,255,.35);z-index:2}
.crosshair-h{left:0;right:0;top:50%;height:1px}
.crosshair-v{top:0;bottom:0;left:50%;width:1px}
.lock-bracket{position:absolute;width:26px;height:26px;border:2px solid var(--cyan);z-index:4;filter:drop-shadow(0 0 6px rgba(55,198,255,.7))}
.lb-tl{top:16px;left:16px;border-right:0;border-bottom:0}
.lb-tr{top:16px;right:16px;border-left:0;border-bottom:0}
.lb-bl{bottom:16px;left:16px;border-right:0;border-top:0}
.lb-br{bottom:16px;right:16px;border-left:0;border-top:0}
.scene-tag{
  position:absolute;z-index:4;
  font-family:var(--font-ui);font-weight:700;font-size:10.5px;letter-spacing:.18em;
  color:rgba(160,210,255,.85);
  padding:5px 10px;border-radius:6px;
  background:rgba(6,14,36,.62);border:1px solid rgba(90,150,255,.25);
  white-space:nowrap;
}
.scene-tag.tag-tl{top:16px;left:52px}
.scene-tag.tag-tr{top:16px;right:52px}
.scene-tag.tag-br{bottom:16px;right:52px}
.scene-tag span{color:var(--cyan)}

/* about scene composition */
.scene-rings{position:absolute;top:0;right:0;bottom:0;left:0;z-index:1}
.scene-rings i{position:absolute;border-radius:50%;border:1px dashed rgba(110,170,255,.35);top:50%;left:50%;transform:translate(-50%,-50%)}
.scene-rings i:nth-child(1){width:62%;aspect-ratio:1;animation:spin 24s linear infinite}
.scene-rings i:nth-child(2){width:78%;aspect-ratio:1;border-style:solid;border-color:rgba(77,155,255,.16);border-top-color:rgba(55,198,255,.7);animation:spin 15s linear infinite reverse}
.scene-rings i:nth-child(3){width:48%;aspect-ratio:1;border-color:rgba(47,123,255,.18);border-left-color:rgba(47,123,255,.8);animation:spin 30s linear infinite}
.scene-sweep{
  position:absolute;z-index:1;width:78%;aspect-ratio:1;border-radius:50%;
  top:0;right:0;bottom:0;left:0;margin:auto;
  background:conic-gradient(from 0deg,rgba(55,198,255,.22),transparent 80deg);
  animation:spin 5s linear infinite;
  mask-image:radial-gradient(circle,#000 0 58%,transparent 60%);
  -webkit-mask-image:radial-gradient(circle,#000 0 58%,transparent 60%);
}
.scene-logo{
  position:absolute;z-index:3;width:44%;height:auto;
  top:0;right:0;bottom:0;left:0;margin:auto;
  filter:drop-shadow(0 0 26px rgba(47,123,255,.8)) drop-shadow(0 0 60px rgba(47,123,255,.4));
  animation:floatY 6s ease-in-out infinite;
}
.frame-badge{
  position:absolute;top:18px;left:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-ui);font-weight:700;font-size:12px;letter-spacing:.22em;
  padding:8px 14px;border-radius:999px;
  background:rgba(4,10,28,.72);border:1px solid rgba(55,198,255,.4);
  backdrop-filter:blur(6px);
}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:#34f0a0;box-shadow:0 0 10px #34f0a0;animation:pulseDot 1.5s ease-in-out infinite}
@keyframes pulseDot{50%{opacity:.35}}

.float-chip{
  position:absolute;z-index:3;min-width:118px;
  padding:12px 18px;border-radius:14px;
  background:rgba(8,18,46,.82);border:1px solid rgba(120,160,255,.3);
  backdrop-filter:blur(10px);
  box-shadow:0 18px 40px -12px rgba(0,0,0,.7);
}
.float-chip strong{display:block;font-family:var(--font-head);font-size:19px;color:#fff;line-height:1.1}
.float-chip strong span{font-size:12px;color:var(--cyan);margin-left:2px}
.float-chip small{font-family:var(--font-ui);font-size:10.5px;letter-spacing:.2em;color:var(--text-dim)}
.chip-1{top:8%;right:-4%;animation:floatY 5s ease-in-out infinite}
.chip-2{bottom:14%;left:-6%;animation:floatY 6.5s ease-in-out infinite .8s}
.float-logo{
  position:absolute;width:74px;height:74px;right:-18px;bottom:-18px;z-index:2;
  opacity:.85;filter:drop-shadow(0 0 16px rgba(47,123,255,.6));
  animation:spin 24s linear infinite;
}

/* ============================================================
   CORE ENGINE
   ============================================================ */
.engine-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(44px,6vw,90px);align-items:center}
.hud-frame{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 40px 90px -30px rgba(20,60,170,.55);
}
.hud-scene{
  position:relative;width:100%;aspect-ratio:4/3;overflow:hidden;
  background:radial-gradient(80% 80% at 50% 40%,#0c1d52 0%,#070f2c 55%,#03061a 100%);
}
.hud-radar{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center}
.hud-radar .radar-ring{position:absolute;top:0;right:0;bottom:0;left:0;margin:auto;border:1px solid rgba(55,198,255,.28);border-radius:50%}
.hud-radar .r1{width:34%;aspect-ratio:1}
.hud-radar .r2{width:52%;aspect-ratio:1}
.hud-radar .r3{width:70%;aspect-ratio:1}
.hud-radar .radar-sweep{
  position:absolute;top:0;right:0;bottom:0;left:0;margin:auto;width:70%;aspect-ratio:1;border-radius:50%;
  background:conic-gradient(from 0deg,rgba(55,198,255,.45),transparent 70deg);
  animation:spin 3.8s linear infinite;
}
.hud-radar .radar-blip{position:absolute;width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px 2px rgba(55,198,255,.8);animation:pulseDot 1.8s ease-in-out infinite}
.hud-radar .b1{top:30%;left:62%}
.hud-radar .b2{top:64%;left:32%;background:var(--blue-bright);box-shadow:0 0 10px 2px rgba(77,155,255,.8)}
.hud-radar .b3{top:40%;left:26%;width:6px;height:6px;background:#fff;box-shadow:0 0 8px 2px rgba(255,255,255,.8)}
.hud-radar .b4{top:58%;left:68%;width:6px;height:6px;animation-delay:.6s}
.hud-scene .crosshair-h,.hud-scene .crosshair-v{opacity:.5}
.hud-overlay{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 26px 22px;
  background:linear-gradient(180deg,transparent,rgba(3,8,22,.88) 35%);
}
.hud-row{display:flex;justify-content:space-between;font-family:var(--font-ui);font-size:12px;letter-spacing:.2em;color:var(--text-dim);margin-bottom:7px}
.hud-row b{color:#fff;font-family:var(--font-head);font-size:13px;letter-spacing:.08em}
.hud-bar{height:4px;border-radius:4px;background:rgba(120,160,255,.16);margin-bottom:13px;overflow:hidden}
.hud-bar i{
  display:block;height:100%;width:0;border-radius:4px;
  background:linear-gradient(90deg,var(--blue),var(--cyan));
  box-shadow:0 0 10px rgba(55,198,255,.8);
  transition:width 1.4s cubic-bezier(.22,.61,.36,1);
}
.engine-visual.in .hud-bar i{width:var(--w)}
.hud-corner{position:absolute;width:22px;height:22px;border:2px solid var(--cyan);opacity:.85}
.hud-corner.tl{top:14px;left:14px;border-right:0;border-bottom:0}
.hud-corner.tr{top:14px;right:14px;border-left:0;border-bottom:0}
.hud-corner.bl{bottom:14px;left:14px;border-right:0;border-top:0}
.hud-corner.br{bottom:14px;right:14px;border-left:0;border-top:0}
.engine-desc{color:var(--text-dim);font-size:clamp(15px,1.55vw,17px)}
.engine-list{margin-top:30px;display:grid;gap:16px}
.engine-list li{display:flex;align-items:center;gap:14px;font-family:var(--font-ui);font-weight:600;font-size:17px;letter-spacing:.04em;color:var(--silver)}
.li-icon{
  flex-shrink:0;width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(55,198,255,.35);
  background:rgba(47,123,255,.1);color:var(--cyan);
}
.li-icon svg{width:21px;height:21px}

/* ============================================================
   VISION CARDS
   ============================================================ */
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,2.4vw,32px)}
.glass-card{
  position:relative;
  padding:44px 32px 38px;
  border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(16,31,70,.6) 0%,rgba(7,14,36,.65) 100%);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  overflow:hidden;
  transition:transform .45s cubic-bezier(.22,.61,.36,1),border-color .45s,box-shadow .45s;
}
.glass-card:hover{transform:translateY(-10px);border-color:rgba(120,170,255,.45);box-shadow:0 34px 70px -24px rgba(30,80,220,.6)}
.card-glow{
  position:absolute;top:-60px;left:50%;transform:translateX(-50%);
  width:170px;height:110px;border-radius:50%;filter:blur(34px);opacity:.8;
}
.glass-card[data-glow="blue"] .card-glow{background:rgba(47,123,255,.75)}
.glass-card[data-glow="violet"] .card-glow{background:rgba(124,92,255,.7)}
.glass-card[data-glow="amber"] .card-glow{background:rgba(255,176,46,.65)}
.card-icon{
  position:relative;z-index:2;
  width:68px;height:68px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(150,185,250,.35);
  background:rgba(4,10,28,.6);color:#dce6ff;
  margin-bottom:26px;
  box-shadow:inset 0 0 20px rgba(47,123,255,.25);
}
.card-icon svg{width:30px;height:30px}
.glass-card h3{
  position:relative;z-index:2;
  font-family:var(--font-head);font-weight:700;font-size:22px;letter-spacing:.05em;
  margin-bottom:16px;color:#fff;
}
.glass-card p{position:relative;z-index:2;color:var(--text-dim);font-size:15px;line-height:1.8}

/* ============================================================
   TECHNOLOGY SLIDER
   ============================================================ */
.tech{background:linear-gradient(180deg,transparent,rgba(7,15,41,.5) 30%,transparent)}
.tech-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(44px,6vw,90px);align-items:center}
.slides{position:relative;min-height:280px;margin-bottom:30px}
.slide{
  position:absolute;top:0;right:0;bottom:0;left:0;
  opacity:0;transform:translateY(18px);
  transition:opacity .6s ease,transform .6s ease;
  pointer-events:none;
}
.slide.is-active{opacity:1;transform:none;pointer-events:auto}
.slide-title{
  font-family:var(--font-head);font-weight:800;
  font-size:clamp(24px,3vw,36px);line-height:1.18;
  letter-spacing:.03em;margin-bottom:20px;color:#fff;
}
.slide p{color:var(--text-dim);font-size:clamp(15px,1.55vw,17px);max-width:540px}
.slider-dots{display:flex;gap:14px}
.dot{
  width:14px;height:14px;border-radius:50%;
  background:rgba(150,180,240,.25);
  transition:all .35s;
}
.dot:hover{background:rgba(150,180,240,.5)}
.dot.is-active{width:38px;border-radius:8px;background:linear-gradient(90deg,var(--blue),var(--cyan));box-shadow:0 0 14px rgba(55,198,255,.6)}

.tech-stage{display:flex;justify-content:center}
.device{
  position:relative;
  width:min(420px,86%);
  padding:14px;border-radius:30px;
  background:linear-gradient(160deg,rgba(120,160,255,.28),rgba(60,90,180,.08) 40%,rgba(120,160,255,.18));
  box-shadow:0 50px 100px -30px rgba(20,60,170,.7),inset 0 1px 0 rgba(255,255,255,.14);
  transform:rotateY(-6deg) rotateX(3deg);
  transform-style:preserve-3d;
}
.device-screen{
  position:relative;border-radius:20px;overflow:hidden;aspect-ratio:9/13.5;
  background:#050b20;border:1px solid rgba(120,160,255,.2);
}
.stage-scene{
  position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;
  background:radial-gradient(90% 70% at 50% 42%,#0c1d52 0%,#070f2c 58%,#03061a 100%);
  opacity:0;transform:scale(1.06);
  transition:opacity .7s ease,transform 1.2s ease;
}
.stage-scene.is-active{opacity:1;transform:scale(1)}
.stage-scene .scene-grid{background-size:26px 26px}

/* scene 1 — target lock */
.stage-rings{position:absolute;top:0;right:0;bottom:0;left:0;z-index:1}
.stage-rings i{position:absolute;border-radius:50%;top:50%;left:50%;transform:translate(-50%,-50%)}
.stage-rings i:nth-child(1){width:64%;aspect-ratio:1;border:1px dashed rgba(110,170,255,.4);animation:spin 20s linear infinite}
.stage-rings i:nth-child(2){width:80%;aspect-ratio:1;border:1px solid rgba(77,155,255,.15);border-top-color:rgba(55,198,255,.75);animation:spin 12s linear infinite reverse}
.stage-logo{
  position:absolute;z-index:2;width:46%;height:auto;top:0;right:0;bottom:0;left:0;margin:auto;
  filter:drop-shadow(0 0 22px rgba(47,123,255,.8));
  animation:floatY 5s ease-in-out infinite;
}

/* scene 2 — swarm mesh */
.mesh-svg{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;z-index:2}
.mesh-links line{
  stroke:rgba(80,160,255,.55);stroke-width:1.2;
  stroke-dasharray:6 6;animation:dashMove 2.4s linear infinite;
}
.mesh-nodes circle{fill:#cfe4ff;filter:drop-shadow(0 0 6px rgba(90,170,255,.9));animation:pulseDot 1.8s ease-in-out infinite}
.mesh-nodes circle.hub{fill:var(--cyan);filter:drop-shadow(0 0 10px rgba(55,198,255,1))}
@keyframes dashMove{to{stroke-dashoffset:-24}}

/* scene 3 — payload scan */
.payload-grid{
  background-image:linear-gradient(rgba(55,198,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(55,198,255,.12) 1px,transparent 1px);
  background-size:22px 22px;
  mask-image:linear-gradient(180deg,transparent,#000 18%,#000 82%,transparent);
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 18%,#000 82%,transparent);
}
.scan-line{
  position:absolute;left:0;right:0;top:0;height:2px;z-index:3;
  background:linear-gradient(90deg,transparent,rgba(55,198,255,.95),transparent);
  box-shadow:0 0 16px 3px rgba(55,198,255,.55);
  animation:scanY 2.8s ease-in-out infinite;
}
@keyframes scanY{0%,100%{top:12%}50%{top:84%}}
.payload-box{
  position:absolute;z-index:2;
  top:50%;left:50%;transform:translate(-50%,-50%);
  width:46%;aspect-ratio:1;
  border:1px solid rgba(55,198,255,.25);border-radius:10px;
}
.payload-box .lock-bracket{width:22px;height:22px}
.stage-scene .crosshair-h,.stage-scene .crosshair-v{opacity:.55}
.stage-scene .scene-tag{font-size:9.5px;padding:4px 8px}
.stage-scene .tag-tl{top:14px;left:44px}
.stage-scene .tag-br{bottom:14px;right:44px}
.stage-scene .lb-tl{top:-2px;left:-2px}
.stage-scene .lb-tr{top:-2px;right:-2px}
.stage-scene .lb-bl{bottom:-2px;left:-2px}
.stage-scene .lb-br{bottom:-2px;right:-2px}

/* scene 4 — radar */
.stage-scene .stage-radar{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center}
.stage-radar .radar-ring{position:absolute;top:0;right:0;bottom:0;left:0;margin:auto;border:1px solid rgba(55,198,255,.3);border-radius:50%}
.stage-radar .r1{width:42%;aspect-ratio:1}
.stage-radar .r2{width:64%;aspect-ratio:1}
.stage-radar .r3{width:86%;aspect-ratio:1}
.stage-radar .radar-sweep{
  position:absolute;top:0;right:0;bottom:0;left:0;margin:auto;width:86%;aspect-ratio:1;border-radius:50%;
  background:conic-gradient(from 0deg,rgba(55,198,255,.5),transparent 70deg);
  animation:spin 3.4s linear infinite;
}
.stage-radar .radar-blip{position:absolute;width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px 2px rgba(55,198,255,.8)}
.stage-radar .b1{top:30%;left:60%}
.stage-radar .b2{top:62%;left:34%;background:var(--blue-bright);box-shadow:0 0 10px 2px rgba(77,155,255,.8)}
.stage-radar .b3{top:44%;left:24%;width:6px;height:6px;background:#fff;box-shadow:0 0 8px 2px rgba(255,255,255,.8)}
.screen-grid{
  position:absolute;top:0;right:0;bottom:0;left:0;opacity:.5;pointer-events:none;
  background-image:linear-gradient(rgba(55,198,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(55,198,255,.08) 1px,transparent 1px);
  background-size:34px 34px;
  mask-image:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent);
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent);
}
.device-notch{
  position:absolute;top:22px;left:50%;transform:translateX(-50%);
  width:88px;height:18px;border-radius:0 0 12px 12px;
  background:rgba(3,7,18,.9);border:1px solid rgba(120,160,255,.25);border-top:0;z-index:5;
}
.device-chip{
  position:absolute;z-index:6;
  padding:11px 18px;border-radius:14px;min-width:132px;
  background:rgba(6,13,34,.88);border:1px solid rgba(120,160,255,.35);
  backdrop-filter:blur(10px);
  box-shadow:0 20px 44px -12px rgba(0,0,0,.75);
}
.device-chip b{display:block;font-family:var(--font-head);font-size:20px;color:#fff;line-height:1.1}
.device-chip b span{font-size:12px;color:var(--cyan)}
.device-chip small{font-family:var(--font-ui);font-size:10.5px;letter-spacing:.2em;color:var(--text-dim)}
.device-chip.c1{top:16%;right:-12%;animation:floatY 5.5s ease-in-out infinite}
.device-chip.c2{bottom:12%;left:-14%;animation:floatY 7s ease-in-out infinite .7s}

/* ============================================================
   TOKENOMICS — ARVQ Distribution
   ============================================================ */
.tokenomics{background:radial-gradient(900px 500px at 50% 0,rgba(47,123,255,.1),transparent 70%)}
.token-layout{
  position:relative;
  display:flex;align-items:center;justify-content:center;gap:clamp(24px,3vw,48px);
  margin:clamp(50px,6vw,84px) auto 0;flex-wrap:nowrap;
}
/* SVG overlay connecting cards → donut */
.tk-lines{
  position:absolute;top:0;right:0;bottom:0;left:0;
  width:100%;height:100%;pointer-events:none;z-index:1;overflow:visible;
}
.tk-line{
  fill:none;stroke-width:1.2;stroke-linecap:round;
  opacity:.35;filter:drop-shadow(0 0 3px currentColor);
}
.tk-line-glow{
  fill:none;stroke-width:2.5;stroke-linecap:round;opacity:.18;
  filter:url(#tkGlow);
}
/* animated flow dot along each line */
.tk-dot{fill:currentColor;filter:drop-shadow(0 0 3px currentColor)}
.tk-col{display:flex;flex-direction:column;gap:18px;flex:0 0 auto}
.tk-col.left{align-items:flex-end}
.tk-col.right{align-items:flex-start}

/* center donut */
.donut-wrap{
  flex:0 0 auto;width:clamp(300px,34vw,400px);aspect-ratio:1;
  position:relative;z-index:2;
}
.donut-svg{width:100%;height:100%;overflow:visible;filter:drop-shadow(0 0 30px rgba(47,123,255,.4))}
.donut-center{
  position:absolute;top:0;right:0;bottom:0;left:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  text-align:center;padding:0 40px;
}
.donut-center strong{
  font-family:var(--font-head);font-size:clamp(26px,3.5vw,38px);font-weight:900;
  background:linear-gradient(180deg,#ffffff,#5f86d8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  letter-spacing:.08em;
}
.donut-center em{font-style:normal;font-family:var(--font-head);font-size:clamp(20px,2.6vw,28px);color:#fff;font-weight:700;letter-spacing:.04em}
.donut-center span{font-family:var(--font-ui);font-size:10.5px;letter-spacing:.4em;color:var(--text-dim);margin-top:4px}
.donut-center small{font-family:var(--font-ui);font-size:9.5px;letter-spacing:.2em;color:rgba(120,160,255,.55);margin-top:8px;font-style:italic}

/* floating info card */
.t-card{
  position:relative;
  display:flex;align-items:center;gap:14px;
  padding:14px 18px 14px 14px;border-radius:18px;
  background:rgba(6,14,36,.82);border:1px solid rgba(120,160,255,.22);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  box-shadow:0 20px 48px -18px rgba(0,0,0,.8),0 0 28px rgba(47,123,255,.18);
  width:clamp(200px,20vw,230px);
  transition:transform .35s ease,border-color .35s,box-shadow .35s;
}
.t-card:hover{transform:translateY(-4px);border-color:var(--c);box-shadow:0 26px 54px -18px rgba(0,0,0,.85),0 0 40px var(--c-glow)}
.tc-icon{
  flex-shrink:0;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-soft);
  border:1px solid var(--c-glow);
  color:var(--c);box-shadow:0 0 16px var(--c-glow);
}
.tc-icon svg{width:22px;height:22px}
.tc-info{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}
.tc-info strong{
  font-family:var(--font-head);font-size:15px;color:#fff;font-weight:800;line-height:1.1;letter-spacing:.02em;white-space:nowrap;
}
.tc-info strong small{font-size:10px;color:var(--c);font-weight:600;margin-left:3px;letter-spacing:.12em}
.tc-info span{font-family:var(--font-ui);font-size:13px;font-weight:700;color:var(--c);letter-spacing:.12em}
.tc-info em{font-style:normal;font-family:var(--font-ui);font-size:11px;color:var(--text-dim);letter-spacing:.18em;text-transform:uppercase}

/* ============================================================
   ROADMAP
   ============================================================ */
.roadmap{background:linear-gradient(180deg,rgba(7,15,41,.55),transparent 20%,transparent 80%,rgba(7,15,41,.55))}
.road-grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:clamp(20px,2.4vw,30px);
  margin-top:clamp(50px,6vw,76px);
}
.road-card{
  position:relative;
  min-height:300px;
  padding:34px 34px 30px;
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(14,32,80,.75) 0%,rgba(6,13,36,.85) 100%);
  border:1px solid rgba(110,155,255,.28);
  overflow:hidden;
  transition:transform .45s,border-color .45s,box-shadow .45s;
}
.road-card::before{
  content:"";position:absolute;top:0;left:10%;right:10%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(90,160,255,.8),transparent);
}
.road-card:hover{transform:translateY(-8px);border-color:rgba(120,170,255,.55);box-shadow:0 30px 70px -26px rgba(30,80,220,.65)}
.road-badge{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:46px;height:34px;padding:0 12px;border-radius:8px;
  background:linear-gradient(135deg,#5aa2ff,#2f7bff);
  font-family:var(--font-head);font-weight:800;font-size:16px;color:#fff;
  box-shadow:0 8px 20px -6px rgba(47,123,255,.7);
}
.road-phase{position:absolute;top:28px;right:30px;text-align:right}
.road-phase b{display:block;font-family:var(--font-head);font-weight:800;font-size:44px;line-height:1;color:#fff}
.road-phase span{font-family:var(--font-head);font-size:14px;letter-spacing:.24em;color:var(--text-dim)}
.road-card ul{margin-top:34px;display:grid;gap:15px}
.road-card li{
  display:flex;align-items:center;gap:13px;
  color:var(--text-dim);font-size:15px;line-height:1.5;
}
.road-card li i{
  flex-shrink:0;width:10px;height:10px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%,#ffd28a,var(--amber));
  box-shadow:0 0 10px rgba(255,176,46,.75);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact{text-align:center;background:radial-gradient(800px 480px at 50% 120%,rgba(47,123,255,.16),transparent 70%)}
.contact-shape{position:absolute;pointer-events:none;opacity:.1;filter:blur(.5px)}
.shape-1{width:280px;left:6%;top:12%;animation:floatY 8s ease-in-out infinite}
.shape-2{width:200px;right:7%;top:30%;animation:floatY 9s ease-in-out infinite 1s}
.contact-inner{position:relative;z-index:2;max-width:760px;margin:0 auto}
.contact-title{
  font-family:var(--font-head);font-weight:900;
  font-size:clamp(38px,7.5vw,82px);letter-spacing:.06em;
  background:linear-gradient(180deg,#fff,#9db8e8);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  filter:drop-shadow(0 0 30px rgba(47,123,255,.5));
  margin-bottom:18px;
}
.contact-sub{color:var(--text-dim);font-size:clamp(15px,1.6vw,18px)}
.contact-socials{display:flex;justify-content:center;gap:20px;margin:38px 0 40px}
.contact-socials a{
  width:62px;height:62px;border-radius:50%;
  border:1px solid rgba(150,185,250,.32);
  display:flex;align-items:center;justify-content:center;
  color:var(--silver);transition:.35s;
  background:rgba(10,22,52,.5);
}
.contact-socials a:hover{color:#fff;border-color:var(--cyan);background:rgba(55,198,255,.12);box-shadow:0 0 28px rgba(55,198,255,.5);transform:translateY(-4px)}
.contact-socials svg{width:25px;height:25px;fill:currentColor}
.contact-form{
  display:flex;gap:12px;max-width:560px;margin:0 auto;
  padding:8px;border-radius:999px;
  background:rgba(8,17,42,.7);border:1px solid var(--line);
}
.contact-form input{
  flex:1;min-width:0;background:transparent;border:none;outline:none;
  color:var(--text);font-size:15px;padding:10px 20px;
}
.contact-form input::placeholder{color:var(--text-dim)}
.contact-form .btn{padding:13px 26px}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{background:#03060f;border-top:1px solid var(--line);padding-top:clamp(56px,6vw,80px)}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr;
  gap:clamp(36px,5vw,70px);
  padding-bottom:50px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-tag{color:var(--text-dim);font-size:14.5px;max-width:340px}
.footer-menu-title{
  font-family:var(--font-head);font-weight:700;font-size:16px;
  letter-spacing:.14em;margin-bottom:22px;color:#fff;
}
.footer-cols{display:flex;gap:56px}
.footer-col{display:grid;gap:13px}
.footer-col a,.footer-contact p{
  font-family:var(--font-ui);font-size:17px;font-weight:500;
  color:var(--text-dim);letter-spacing:.04em;transition:color .3s;
}
.footer-col a:hover{color:var(--cyan)}
.footer-contact p{margin-bottom:10px}
.footer-socials{display:flex;gap:14px;margin-top:18px}
.footer-socials a{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-dim);transition:.3s;
}
.footer-socials a:hover{color:var(--cyan);border-color:var(--cyan)}
.footer-socials svg{width:17px;height:17px;fill:currentColor}
.footer-bottom{border-top:1px solid rgba(120,160,255,.1)}
.footer-bottom .container{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  padding-block:22px;
}
.footer-bottom p{font-size:13px;color:var(--text-dim);letter-spacing:.06em;font-family:var(--font-ui)}

/* toast */
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,120px);
  z-index:250;max-width:min(440px,90%);
  background:rgba(9,20,48,.95);border:1px solid rgba(55,198,255,.45);
  backdrop-filter:blur(12px);
  color:var(--text);font-size:14.5px;text-align:center;
  padding:16px 26px;border-radius:14px;
  box-shadow:0 20px 50px -12px rgba(0,0,0,.7),0 0 26px rgba(55,198,255,.25);
  transition:transform .5s cubic-bezier(.22,.61,.36,1);
}
.toast.show{transform:translate(-50%,0)}

/* ---------- short viewports ---------- */
@media (max-height:820px){
  .hero{padding-top:calc(var(--header-h) + 16px);padding-bottom:60px}
  .hero-orbit{width:clamp(150px,26vh,230px);margin-bottom:14px}
  .hero-eyebrow{margin-bottom:12px}
  .hero-title{margin-bottom:14px}
  .hero-sub{margin-bottom:24px}
  .hero-actions{margin-bottom:24px}
  .scroll-hint{display:none}
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1024px){
  .about-grid,.engine-grid,.tech-grid{grid-template-columns:1fr;gap:54px}
  .engine-visual{order:2}
  .tech-stage{order:2}
  .about-stats{max-width:none}
  .cards-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto}
  .glass-card{padding:38px 30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:44px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:860px){
  :root{--header-h:68px}
  .nav,.header-cta{display:none}
  .burger{display:flex}
  .hero{padding-bottom:90px}
  .road-grid{grid-template-columns:1fr}
  .token-layout{flex-direction:column;flex-wrap:wrap;height:auto}
  .donut-wrap{order:-1;margin-bottom:28px}
  .tk-col{flex-direction:row;flex-wrap:wrap;justify-content:center;gap:14px}
  .tk-col.left{align-items:center}
  .tk-col.right{align-items:center}
  .t-card{width:min(260px,100%);padding:12px 14px 12px 12px}
}
@media (max-width:600px){
  .container{width:90%}
  .brand-logo{width:40px;height:40px}
  .brand-name{font-size:17px}
  .hero-orbit{width:clamp(190px,52vw,240px)}
  .hero-eyebrow{letter-spacing:.3em;gap:10px}
  .hero-actions{flex-direction:column;align-items:stretch;max-width:300px;margin:0 auto}
  .btn{justify-content:center}
  .about-stats{grid-template-columns:1fr 1fr;gap:22px 14px}
  .float-chip{min-width:104px;padding:10px 14px}
  .float-chip strong{font-size:16px}
  .chip-1{right:0}.chip-2{left:0}
  .float-logo{width:58px;height:58px}
  .slides{min-height:340px}
  .device-chip.c1{right:0}.device-chip.c2{left:0}
  .road-card{padding:28px 24px 26px}
  .road-phase{top:24px;right:24px}
  .road-phase b{font-size:36px}
  .road-card ul{margin-top:30px}
  .contact-form{flex-direction:column;border-radius:24px;padding:14px}
  .contact-form input{text-align:center;padding:12px}
  .contact-form .btn{width:100%;justify-content:center}
  .shape-1{width:170px}.shape-2{width:130px}
  .footer-grid{grid-template-columns:1fr}
  .footer-cols{gap:48px}
  .footer-bottom .container{justify-content:center;text-align:center}
  .scroll-hint{display:none}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}

/* ============================================================
   IE / 360 COMPATIBILITY FALLBACK
   ============================================================ */

/* IE notice layer — hidden by default, shown under .ie */
.ie-notice{display:none}
.ie .ie-notice{
  display:flex;position:fixed;top:0;right:0;bottom:0;left:0;
  z-index:99999;align-items:center;justify-content:center;
  background:rgba(2,4,15,.97);text-align:center;padding:40px 20px;
}
.ie-notice-inner{max-width:520px}
.ie-notice-icon{
  width:64px;height:64px;border-radius:50%;margin:0 auto 20px;
  background:#2f7bff;color:#fff;font-size:32px;font-weight:bold;
  line-height:64px;font-family:Arial,Helvetica,sans-serif;
}
.ie-notice h3{font-size:22px;color:#fff;margin-bottom:14px;font-family:Arial,Helvetica,sans-serif}
.ie-notice p{color:#8ea2c4;font-size:15px;line-height:1.8;margin-bottom:24px;font-family:Arial,Helvetica,sans-serif}
.ie-notice p strong{color:#37c6ff}
.ie-notice-btn{
  padding:12px 28px;border-radius:999px;
  background:#2f7bff;color:#fff;font-size:15px;font-family:Arial,Helvetica,sans-serif;
  cursor:pointer;border:none;
}
.ie-notice-btn:hover{background:#4d9bff}

/* ---- Hardcoded values (CSS vars not supported in IE) ---- */
.ie body{background:#02040f;color:#e8eefb;font-family:'Inter',Arial,Helvetica,sans-serif}
.ie .preloader{background:#04081a}
.ie .hero{background:#060d26}
.ie .about-scene,.ie .hud-scene,.ie .stage-scene{background:#070f2c}
.ie .section{padding:80px 0}
.ie .container{width:92%;max-width:1240px;margin:0 auto}
.ie .nav a,.ie .nav-link{color:#c7d3e6;font-family:'Rajdhani',Arial,sans-serif}
.ie .nav a:hover,.ie .nav-link:hover{color:#37c6ff}
.ie .eyebrow{color:rgba(150,180,235,.7);font-family:'Rajdhani',Arial,sans-serif}
.ie .section-title,.ie .mega-title,.ie .hero-title{font-family:'Orbitron',Arial,sans-serif;color:#fff}
.ie .section-sub,.ie .about-desc,.ie .engine-desc,.ie .slide p{color:#8ea2c4}
.ie .stat strong,.ie .hud-row b,.ie .road-phase b{color:#fff;font-family:'Orbitron',Arial,sans-serif}
.ie .stat span,.ie .hud-row span,.ie .eyebrow{color:#8ea2c4;font-family:'Rajdhani',Arial,sans-serif}
.ie .btn-primary{background:#2f7bff;color:#fff}
.ie .btn-ghost{border:1px solid rgba(150,185,250,.38);color:#c7d3e6;background:rgba(47,123,255,.06)}
.ie .btn{font-family:'Rajdhani',Arial,sans-serif}
.ie .glass-card{background:rgba(16,31,70,.85);border:1px solid rgba(120,160,255,.16)}
.ie .glass-card h3{color:#fff;font-family:'Orbitron',Arial,sans-serif}
.ie .glass-card p{color:#8ea2c4}
.ie .road-card{background:rgba(13,26,61,.7);border:1px solid rgba(120,160,255,.16)}
.ie .road-card h3{color:#fff;font-family:'Orbitron',Arial,sans-serif}
.ie .road-card li{color:#c7d3e6;font-family:'Rajdhani',Arial,sans-serif}
.ie .road-card li::before{color:#37c6ff}
.ie .donut-center strong{color:#fff;font-family:'Orbitron',Arial,sans-serif;-webkit-text-fill-color:#fff}
.ie .donut-center em{color:#fff}
.ie .donut-center span{color:#8ea2c4}
.ie .t-card strong{color:#fff;font-family:'Orbitron',Arial,sans-serif}
.ie .t-card em{color:#8ea2c4;font-family:'Rajdhani',Arial,sans-serif}
.ie .footer{background:#04081a;border-top:1px solid rgba(120,160,255,.12)}
.ie .footer a{color:#8ea2c4}
.ie .footer a:hover{color:#37c6ff}
.ie .ticker{background:#04081a}
.ie .ticker span{color:#c7d3e6}

/* ---- aspect-ratio fallback (IE has no support) ---- */
.ie .about-scene{height:380px}
.ie .hud-scene{height:300px}
.ie .device-screen{height:520px}
.ie .donut-wrap{height:340px;width:340px}
.ie .hero-orbit{height:280px;width:280px}
.ie .scene-rings i:nth-child(1),
.ie .scene-rings i:nth-child(2),
.ie .scene-rings i:nth-child(3),
.ie .stage-rings i:nth-child(1),
.ie .stage-rings i:nth-child(2){height:200px}
.ie .hud-radar .radar-ring,
.ie .stage-radar .radar-ring{height:200px}
.ie .hud-radar .radar-sweep,
.ie .stage-radar .radar-sweep{height:200px}
.ie .scene-sweep{height:260px;width:260px}
.ie .preloader-logo{width:110px;height:110px}

/* ---- inset fallback ---- */
.ie .preloader,.ie .ie-notice,.ie .hero-glow,.ie .hero-planet,
.ie .scene-grid,.ie .scene-rings,.ie .scene-sweep,.ie .crosshair-h,.ie .crosshair-v,
.ie .hud-radar,.ie .hud-overlay,.ie .stage-scene,.ie .stage-radar,
.ie .radar-sweep,.ie .scan-line,.ie .screen-grid,
.ie .mobile-menu,.ie .scroll-progress,
.ie .mesh-svg,.ie .payload-grid,.ie .payload-box{
  top:0;right:0;bottom:0;left:0;
}

/* ---- clamp() fallback ---- */
.ie .hero-title{font-size:64px}
.ie .section-title{font-size:36px}
.ie .mega-title{font-size:48px}
.ie .eyebrow{font-size:14px}
.ie .section-sub{font-size:16px}
.ie .btn{font-size:16px}
.ie .about-desc{font-size:16px}
.ie .hero-sub{font-size:18px}

/* ---- backdrop-filter fallback ---- */
.ie .header.scrolled{background:rgba(4,8,26,.95)}
.ie .glass-card,.ie .frame-badge,.ie .float-chip,.ie .device-chip,
.ie .scene-tag,.ie .hud-row,.ie .toast{
  background:rgba(8,18,46,.92);
}

/* ---- conic-gradient fallback ---- */
.ie .donut{background:#0a1740}
.ie .scene-sweep,.ie .radar-sweep{background:rgba(55,198,255,.2)}

/* ---- mask-image fallback ---- */
.ie .scene-grid,.ie .payload-grid,.ie .screen-grid{opacity:.25}

/* ---- grid fallback for IE11 (basic single-column) ---- */
.ie .about-grid,.ie .engine-grid,.ie .tech-grid{display:block}
.ie .about-text,.ie .about-visual,.ie .engine-visual,.ie .engine-text,
.ie .slides-wrap,.ie .tech-stage{display:block;width:100%;margin-bottom:40px}
.ie .about-stats{display:flex;flex-wrap:wrap;justify-content:space-between}
.ie .about-stats .stat{width:48%;margin-bottom:20px}
.ie .cards-grid{display:block}
.ie .cards-grid .glass-card{width:100%;margin-bottom:24px}
.ie .road-grid{display:block}
.ie .road-grid .road-card{width:100%;margin-bottom:24px}
.ie .footer-grid{display:block}
.ie .footer-grid>div{width:100%;margin-bottom:24px}
.ie .token-layout{display:block;height:auto}
.ie .donut-wrap{display:block;margin:0 auto}
.ie .t-card{position:relative;top:auto;left:auto;right:auto;bottom:auto;transform:none;margin:12px auto}

/* ---- flex gap fallback ---- */
.ie .hero-actions{margin-left:-10px}
.ie .hero-actions .btn{margin-left:10px}
.ie .slider-dots{margin-left:-14px}
.ie .slider-dots .dot{margin-left:14px}
.ie .footer-bottom .container{display:block;text-align:center}
.ie .footer-social{margin-top:16px}

/* ---- object-fit fallback ---- */
.ie .hero-logo,.ie .scene-logo,.ie .stage-logo,.ie .preloader-logo,
.ie .float-logo,.ie .brand-logo{object-fit:contain}

/* ---- reveal & slider: force visible (JS may not run in IE) ---- */
.ie .reveal{opacity:1;transform:none;transition:none}
.ie .slide{position:relative;opacity:1;transform:none;pointer-events:auto}
.ie .slide:not(.is-active){display:none}
.ie .stage-scene{opacity:1;transform:none}
.ie .stage-scene:not(.is-active){display:none}
.ie .preloader.done{display:none}
.ie .nav-link.active{color:#37c6ff}

/* ============================================================
   ASPECT-RATIO FALLBACK (for older Chromium like 360 Speed Mode)
   Chromium < 88 does not support aspect-ratio at all.
   Give every key container a real height so absolute children
   inside (scene grids, logos, rings, etc.) have a box to render in.
   ============================================================ */
@supports not (aspect-ratio: 1) {

  /* scene containers — give them a real height instead of relying on aspect-ratio */
  .about-scene{height:420px}
  .hud-scene{height:300px}
  .device-screen{height:560px}
  .donut-wrap{height:clamp(340px,40vw,440px)}
  .hero-orbit{height:clamp(230px,30vw,350px)}

  /* ring layers inside scenes: width is %, height must match for circles */
  .scene-rings i:nth-child(1){height:62%}
  .scene-rings i:nth-child(2){height:78%}
  .scene-rings i:nth-child(3){height:48%}
  .scene-sweep{height:78%}

  .hud-radar .radar-ring{top:50%;left:50%;transform:translate(-50%,-50%)}
  .hud-radar .r1{height:34%}
  .hud-radar .r2{height:52%}
  .hud-radar .r3{height:70%}
  .hud-radar .radar-sweep{height:70%}

  .stage-rings i:nth-child(1){height:64%}
  .stage-rings i:nth-child(2){height:80%}

  .stage-radar .radar-ring{top:50%;left:50%;transform:translate(-50%,-50%)}
  .stage-radar .r1{height:42%}
  .stage-radar .r2{height:64%}
  .stage-radar .r3{height:86%}
  .stage-radar .radar-sweep{height:86%}

  .payload-box{height:46%}

  /* mobile — reduce heights proportionally */
  @media (max-width:860px){
    .about-scene{height:320px}
    .hud-scene{height:260px}
    .device-screen{height:480px}
    .hero-orbit{height:clamp(190px,52vw,240px)}
  }
  @media (max-width:600px){
    .about-scene{height:280px}
    .hud-scene{height:220px}
    .device-screen{height:420px}
  }
}