:root{
  --bg:#070a12; --card:rgba(18,23,38,.6); --card-line:rgba(255,255,255,.08);
  --text:#eef2ff; --muted:#9aa3bd; --faint:#5b6680;
  --accent:#5b8cff; --accent2:#9b6bff; --accent3:#2dd4bf;
  --ring:rgba(91,140,255,.4);
  --bn:'Hind Siliguri',system-ui,sans-serif;
  --latin:'Inter',system-ui,sans-serif;
  --mono:'JetBrains Mono',monospace;
  --max:1140px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
[hidden]{display:none!important}
body{font-family:var(--bn);background:var(--bg);color:var(--text);
  line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased;position:relative}
a{color:inherit;text-decoration:none}
img,canvas{display:block;max-width:100%}

/* ── Background ── */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:
  radial-gradient(1200px 800px at 80% -10%,#11183a 0%,transparent 60%),
  radial-gradient(900px 700px at 0% 100%,#14122e 0%,transparent 55%),var(--bg)}
.bg__grid{position:absolute;inset:-2px;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:50px 50px;
  -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%)}
.bg__mesh{position:absolute;inset:0;opacity:.5;
  background:conic-gradient(from 180deg at 50% 50%,#1b2a55,#2a1b55,#16323a,#1b2a55);
  filter:blur(130px) saturate(120%);animation:spin 44s linear infinite}
.bg__orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.4;mix-blend-mode:screen}
.bg__orb--1{width:380px;height:380px;background:#3b6bff;top:-80px;left:-60px;animation:float1 18s ease-in-out infinite}
.bg__orb--2{width:320px;height:320px;background:#8b5bff;top:60%;right:-60px;animation:float2 21s ease-in-out infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes float1{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,40px)}}
@keyframes float2{0%,100%{transform:translate(0,0)}50%{transform:translate(-40px,-30px)}}

/* ── Reveal ── */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.is-visible{opacity:1;transform:none}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--bn);font-weight:700;
  font-size:1rem;padding:13px 24px;min-height:48px;border-radius:12px;cursor:pointer;border:none;
  transition:transform .14s,box-shadow .2s,filter .2s,background .2s,border-color .2s;white-space:nowrap}
.btn--primary{color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent2));
  box-shadow:0 12px 30px -10px var(--ring),inset 0 1px 0 rgba(255,255,255,.25)}
.btn--primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 18px 40px -10px var(--ring)}
.btn--ghost{color:var(--text);background:rgba(255,255,255,.04);border:1px solid var(--card-line)}
.btn--ghost:hover{background:rgba(255,255,255,.08);border-color:var(--accent)}
.btn--lg{font-size:1.05rem;padding:16px 32px;min-height:54px}

/* ── Nav ── */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .25s,backdrop-filter .25s,border-color .25s;
  border-bottom:1px solid transparent}
.nav--scrolled{background:rgba(8,11,20,.72);backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);border-bottom-color:var(--card-line)}
.nav__inner{max-width:var(--max);margin:0 auto;height:66px;padding:0 clamp(16px,4vw,28px);
  display:flex;align-items:center;justify-content:space-between;gap:16px}
.nav__logo{display:flex;align-items:center;gap:9px;font-family:var(--latin);font-weight:800;font-size:1.12rem;letter-spacing:.2px}
.nav__mark{width:30px;height:30px;border-radius:9px;flex:0 0 auto;display:grid;place-items:center;color:#cfe0ff;
  background:linear-gradient(140deg,var(--accent),var(--accent2));box-shadow:0 6px 18px -6px var(--ring),inset 0 1px 0 rgba(255,255,255,.3)}
.nav__links{display:flex;align-items:center;gap:6px}
.nav__links>a{padding:9px 14px;font-weight:600;font-size:.95rem;color:var(--muted);border-radius:9px;transition:color .15s,background .15s}
.nav__links>a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav__cta{color:#fff!important;background:linear-gradient(135deg,var(--accent),var(--accent2));
  box-shadow:0 8px 20px -8px var(--ring);margin-left:6px}
.nav__cta:hover{background:linear-gradient(135deg,var(--accent),var(--accent2))!important;filter:brightness(1.08)}
.nav__burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;width:42px;height:42px;justify-content:center}
.nav__burger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s,opacity .25s}
.nav__burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav__burger.open span:nth-child(2){opacity:0}
.nav__burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── Hero ── */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;justify-content:center;
  padding:90px clamp(16px,4vw,28px) 60px;text-align:center;overflow:hidden}
#heroCanvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.95}
.hero__inner{position:relative;z-index:1;max-width:780px;
  /* soft scrim keeps text readable over the 3D */
  filter:drop-shadow(0 2px 30px rgba(7,10,18,.6))}
.hero__eyebrow{display:inline-block;font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;
  color:#cdd7f5;background:rgba(91,140,255,.12);border:1px solid rgba(91,140,255,.3);
  padding:7px 15px;border-radius:99px;margin-bottom:24px}
.hero__title{font-family:var(--bn);font-weight:700;font-size:clamp(2.1rem,6.4vw,4.1rem);
  line-height:1.18;letter-spacing:-.01em;margin-bottom:20px}
.grad{background:linear-gradient(120deg,#7ea6ff,#b69bff 50%,#5fe0cf);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.hero__sub{font-size:clamp(1rem,2.6vw,1.18rem);color:var(--muted);max-width:600px;margin:0 auto 32px}
.hero__cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:30px}
.hero__trust{display:flex;gap:8px 22px;justify-content:center;flex-wrap:wrap;
  font-family:var(--mono);font-size:.74rem;color:var(--faint)}
.hero__trust span{white-space:nowrap}
.hero__scroll{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);width:24px;height:38px;
  border:2px solid rgba(255,255,255,.18);border-radius:14px;z-index:1}
.hero__scroll span{position:absolute;top:7px;left:50%;width:3px;height:7px;border-radius:3px;background:var(--accent3);
  transform:translateX(-50%);animation:scrolldot 1.8s ease-in-out infinite}
@keyframes scrolldot{0%{opacity:0;top:7px}40%{opacity:1}80%{opacity:0;top:20px}100%{opacity:0}}

/* ── Sections ── */
.section{max-width:var(--max);margin:0 auto;padding:clamp(60px,10vw,110px) clamp(16px,4vw,28px)}
.section__head{text-align:center;max-width:640px;margin:0 auto 50px}
.eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;color:var(--accent3);margin-bottom:14px}
.section__title{font-weight:700;font-size:clamp(1.7rem,4.6vw,2.6rem);line-height:1.25;margin-bottom:14px}
.section__sub{color:var(--muted);font-size:1.05rem}

/* ── Feature grid ── */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--card-line);border-radius:18px;padding:26px 24px;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:transform .2s,border-color .2s,box-shadow .2s}
.card:hover{transform:translateY(-5px);border-color:rgba(91,140,255,.45);box-shadow:0 24px 50px -24px rgba(0,0,0,.7)}
.card__icon{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;font-size:1.6rem;margin-bottom:18px;
  background:linear-gradient(140deg,rgba(91,140,255,.18),rgba(155,107,255,.18));border:1px solid var(--card-line)}
.card h3{font-size:1.18rem;font-weight:700;margin-bottom:9px}
.card p{color:var(--muted);font-size:.96rem}

/* ── Stats ── */
.stats{padding-top:0}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  background:linear-gradient(140deg,rgba(91,140,255,.07),rgba(155,107,255,.05));
  border:1px solid var(--card-line);border-radius:22px;padding:clamp(26px,5vw,44px) clamp(20px,4vw,36px)}
.stat{text-align:center}
.stat__num{font-family:var(--latin);font-weight:800;font-size:clamp(1.9rem,5vw,3rem);line-height:1;
  background:linear-gradient(120deg,#9ab8ff,#c0a8ff);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent}
.stat__num span{font-size:.5em;-webkit-text-fill-color:var(--accent3);color:var(--accent3)}
.stat__label{color:var(--muted);font-size:.9rem;margin-top:8px}

/* ── CTA ── */
.cta{max-width:var(--max);margin:0 auto;padding:0 clamp(16px,4vw,28px) clamp(60px,10vw,110px)}
.cta__box{position:relative;text-align:center;border-radius:26px;padding:clamp(40px,7vw,70px) clamp(24px,5vw,40px);
  background:radial-gradient(120% 140% at 50% 0%,rgba(91,140,255,.18),rgba(18,23,38,.6) 60%);
  border:1px solid rgba(91,140,255,.28);overflow:hidden}
.cta__box::before{content:'';position:absolute;inset:0;z-index:-1;
  background:radial-gradient(60% 80% at 50% 0%,rgba(155,107,255,.25),transparent 70%)}
.cta__box h2{font-weight:700;font-size:clamp(1.7rem,4.8vw,2.7rem);line-height:1.25;margin-bottom:14px}
.cta__box p{color:var(--muted);font-size:1.05rem;max-width:480px;margin:0 auto 28px}

/* ── Footer ── */
.footer{border-top:1px solid var(--card-line);background:rgba(8,11,20,.5)}
.footer__inner{max-width:var(--max);margin:0 auto;padding:50px clamp(16px,4vw,28px) 30px;
  display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.footer__brand p{color:var(--muted);font-size:.92rem;margin-top:14px}
.footer__links{display:flex;flex-direction:column;gap:10px}
.footer__links a{color:var(--muted);font-size:.95rem;transition:color .15s}
.footer__links a:hover{color:#fff}
.footer__bar{max-width:var(--max);margin:0 auto;padding:18px clamp(16px,4vw,28px);
  border-top:1px solid var(--card-line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:.82rem;color:var(--faint)}
.footer__sec{font-family:var(--mono);font-size:.72rem;color:var(--accent3)}

/* ── Responsive ── */
@media (max-width:820px){
  .nav__burger{display:flex}
  .nav__links{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;
    padding:14px clamp(16px,4vw,28px) 20px;background:rgba(10,13,24,.96);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--card-line);
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:transform .25s,opacity .25s}
  .nav__links.open{transform:none;opacity:1;pointer-events:auto}
  .nav__links>a{padding:13px 14px;font-size:1rem}
  .nav__cta{margin-left:0;text-align:center;justify-content:center;display:flex;margin-top:6px}
}
@media (max-width:560px){
  .stats__grid{grid-template-columns:repeat(2,1fr);gap:22px 14px}
  .footer__inner{flex-direction:column;gap:24px}
  .hero__trust{font-size:.68rem;gap:6px 14px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .bg__mesh,.bg__orb,.hero__scroll span{animation:none}
  .reveal{opacity:1;transform:none;transition:none}
}

/* ── Hero readability scrim (dims the globe centre behind the text) ── */
.hero::after{content:'';position:absolute;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(58% 48% at 50% 46%,rgba(7,10,18,.62),rgba(7,10,18,.18) 55%,transparent 78%)}
/* ── Hero content entrance — pure CSS, never depends on JS being loaded ── */
.hero__eyebrow,.hero__title,.hero__sub,.hero__cta,.hero__trust{opacity:0;animation:heroIn .7s cubic-bezier(.2,.7,.2,1) forwards}
.hero__title{animation-delay:.07s}
.hero__sub{animation-delay:.15s}
.hero__cta{animation-delay:.23s}
.hero__trust{animation-delay:.31s}
@keyframes heroIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  .hero__eyebrow,.hero__title,.hero__sub,.hero__cta,.hero__trust{animation:none;opacity:1;transform:none}
}

/* ── Live blockchain section ── */
.chain__stage{position:relative;width:100%;height:clamp(380px,58vh,580px);
  border:1px solid var(--card-line);border-radius:22px;overflow:hidden;
  background:radial-gradient(120% 100% at 50% 0%,rgba(91,140,255,.12),rgba(10,14,26,.45) 60%)}
#chainCanvas{position:absolute;inset:0;width:100%;height:100%}
.chain__hud{position:absolute;top:16px;left:16px;z-index:2;display:flex;flex-direction:column;gap:9px;
  background:rgba(10,14,26,.58);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--card-line);border-radius:14px;padding:14px 16px;min-width:236px;max-width:calc(100% - 32px)}
.hud__row{display:flex;justify-content:space-between;gap:18px;align-items:baseline}
.hud__k{font-size:.74rem;color:var(--muted);white-space:nowrap}
.hud__v{font-family:var(--latin);font-weight:700;font-size:1rem;color:#eaf0ff}
.hud__v.mono{font-family:var(--mono);font-size:.8rem;color:var(--accent3);font-weight:500}
.hud__status{display:flex;align-items:center;gap:8px;font-size:.78rem;color:#cdd7f5;margin-top:2px}
.hud__status .dot{width:8px;height:8px;border-radius:50%;background:var(--good);box-shadow:0 0 10px var(--good);animation:bpulse 1.4s ease-in-out infinite;flex:0 0 auto}
@keyframes bpulse{0%,100%{opacity:1}50%{opacity:.3}}
.hud__bar{height:4px;border-radius:99px;background:rgba(255,255,255,.1);overflow:hidden}
.hud__bar span{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent3))}
.chain__badges{position:absolute;bottom:16px;left:16px;right:16px;z-index:2;display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.cbadge{background:rgba(10,14,26,.58);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--card-line);border-radius:12px;padding:9px 18px;text-align:center;min-width:88px}
.cbadge b{display:block;font-family:var(--latin);font-weight:800;font-size:1.12rem;color:#eaf0ff;letter-spacing:.3px}
.cbadge span{font-size:.68rem;color:var(--muted)}
@media (max-width:580px){
  .chain__hud{min-width:0;left:12px;top:12px;padding:11px 13px;gap:7px}
  .hud__k{font-size:.66rem}.hud__v{font-size:.9rem}
  .chain__badges{gap:6px;left:12px;right:12px}
  .cbadge{padding:7px 8px;min-width:0;flex:1}
  .cbadge b{font-size:.92rem}.cbadge span{font-size:.62rem}
}