/* ===================== RESET & TOKENS ===================== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --black:#0A0A0F;
  --black-2:#0f0f18;
  --blue:#00D4FF;
  --purple:#8B00FF;
  --gold:#FFD700;
  --white:#f5f7fa;
  --muted:#9aa3b2;
  --card:rgba(255,255,255,.03);
  --border:rgba(255,255,255,.08);
  --max:1200px;
}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',sans-serif;
  background:var(--black);
  color:var(--white);
  line-height:1.6;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:'Space Grotesk',sans-serif;font-weight:700;line-height:1.15}
a{color:inherit;text-decoration:none}
img,video{display:block;max-width:100%}
.container{width:90%;max-width:var(--max);margin:0 auto}
.section{padding:120px 0;position:relative}
.gradient-text{
  background:linear-gradient(100deg,var(--blue),var(--purple) 60%,var(--gold));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  background-size:200% auto;animation:shimmer 6s linear infinite;
}
@keyframes shimmer{to{background-position:200% center}}
.gold{color:var(--gold)}
.section-title{font-size:clamp(2rem,5vw,3.4rem);text-align:center;letter-spacing:-.02em}
.section-sub{text-align:center;color:var(--muted);max-width:640px;margin:18px auto 60px;font-size:1.05rem}

/* ===================== BUTTONS ===================== */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 34px;border-radius:50px;font-weight:600;font-size:1rem;
  cursor:pointer;border:none;transition:.3s;font-family:'Space Grotesk',sans-serif;
}
.btn span{transition:transform .3s}
.btn:hover span{transform:translateX(5px)}
.btn-primary{
  background:linear-gradient(100deg,var(--blue),var(--purple));
  color:#fff;box-shadow:0 0 25px rgba(0,212,255,.35);
}
.btn-primary:hover{box-shadow:0 0 40px rgba(0,212,255,.6);transform:translateY(-2px)}
.btn-outline{
  background:transparent;border:1.5px solid var(--blue);color:var(--blue);
}
.btn-outline:hover{background:var(--blue);color:var(--black);box-shadow:0 0 30px rgba(0,212,255,.5)}

/* ===================== NAVBAR ===================== */
#navbar{
  position:fixed;top:0;left:0;width:100%;z-index:1000;
  transition:.4s;padding:22px 0;
}
#navbar.scrolled{
  padding:12px 0;
  background:rgba(10,10,15,.7);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-inner{width:90%;max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  font-family:'Space Grotesk';font-weight:700;font-size:1.4rem;color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--purple));
  box-shadow:0 0 20px rgba(139,0,255,.5);
}
.brand-text{font-family:'Space Grotesk';font-weight:700;font-size:1.05rem;letter-spacing:.02em}
.brand-accent{color:var(--blue);margin-left:4px}
.nav-links{display:flex;align-items:center;gap:34px;list-style:none}
.nav-links a{font-size:.95rem;color:var(--muted);transition:.25s;font-weight:500}
.nav-links a:hover{color:var(--white)}
.nav-cta{
  padding:10px 22px;border-radius:50px;color:#fff!important;
  background:linear-gradient(100deg,var(--blue),var(--purple));
  box-shadow:0 0 18px rgba(0,212,255,.35);
}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* ===================== HERO ===================== */
.hero{position:relative;height:100vh;min-height:640px;display:grid;place-items:center;overflow:hidden;text-align:center}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero-overlay{position:absolute;inset:0;z-index:1;
  background:radial-gradient(ellipse at center,rgba(10,10,15,.55),rgba(10,10,15,.9) 80%),
             linear-gradient(180deg,rgba(10,10,15,.6),rgba(10,10,15,.95));
}
#particles{position:absolute;inset:0;z-index:2}
.hero-content{position:relative;z-index:3;padding:0 20px;max-width:900px}
.hero-eyebrow{color:var(--blue);letter-spacing:.35em;text-transform:uppercase;font-size:.8rem;margin-bottom:18px;font-weight:600}
.hero-title{font-size:clamp(2.6rem,8vw,6rem);letter-spacing:-.03em;line-height:1}
.hero-slogan{font-family:'Space Grotesk';font-size:clamp(1.3rem,3vw,2rem);font-weight:600;margin:18px 0 14px;letter-spacing:.04em}
.hero-typing{font-size:clamp(1rem,2.2vw,1.35rem);color:var(--muted);min-height:1.6em;margin-bottom:36px}
.cursor{color:var(--blue);animation:blink 1s step-end infinite}
@keyframes blink{50%{opacity:0}}
.hero-btn{font-size:1.1rem;padding:17px 40px}
.scroll-hint{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:3;width:26px;height:42px;border:2px solid rgba(255,255,255,.35);border-radius:20px}
.scroll-hint span{position:absolute;top:8px;left:50%;transform:translateX(-50%);width:4px;height:8px;background:var(--blue);border-radius:2px;animation:scrolldot 1.6s infinite}
@keyframes scrolldot{0%{opacity:1;top:8px}100%{opacity:0;top:24px}}

/* ===================== REVEAL ===================== */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ===================== BARRIER ===================== */
.barrier{overflow:hidden}
.mesh-bg{position:absolute;inset:0;z-index:0;opacity:.5;
  background:
    radial-gradient(circle at 15% 20%,rgba(0,212,255,.18),transparent 40%),
    radial-gradient(circle at 85% 30%,rgba(139,0,255,.18),transparent 45%),
    radial-gradient(circle at 50% 90%,rgba(255,215,0,.08),transparent 50%);
}
.barrier .container{position:relative;z-index:1}
.barrier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.barrier-card{
  background:var(--card);border:1px solid var(--border);border-radius:20px;
  padding:48px 32px;text-align:center;backdrop-filter:blur(10px);transition:.4s;
}
.barrier-card:hover{transform:translateY(-6px);border-color:rgba(0,212,255,.4)}
.barrier-card.highlight{border-color:rgba(0,212,255,.5);box-shadow:0 0 40px rgba(0,212,255,.15)}
.counter,.counter-static{font-family:'Space Grotesk';font-size:clamp(2.4rem,5vw,3.6rem);font-weight:700;line-height:1;
  background:linear-gradient(100deg,var(--blue),var(--purple));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.counter-static{background:linear-gradient(100deg,var(--gold),var(--blue));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.barrier-label{font-family:'Space Grotesk';font-weight:600;font-size:1.15rem;margin:16px 0 8px}
.barrier-desc{color:var(--muted);font-size:.95rem}

/* ===================== HOW / TIMELINE ===================== */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:40px}
.timeline-line{position:absolute;top:38px;left:8%;right:8%;height:2px;background:rgba(255,255,255,.1);z-index:0}
.timeline-progress{position:absolute;inset:0;width:0;background:linear-gradient(90deg,var(--blue),var(--purple));box-shadow:0 0 12px var(--blue);transition:width 1.4s ease}
.timeline.active .timeline-progress{width:100%}
.step{position:relative;z-index:1;text-align:center;padding:0 6px}
.step-icon{
  width:76px;height:76px;margin:0 auto 20px;border-radius:50%;display:grid;place-items:center;
  font-size:2rem;background:var(--black-2);border:2px solid var(--border);transition:.5s;
}
.step.in .step-icon{border-color:var(--blue);box-shadow:0 0 30px rgba(0,212,255,.5);transform:scale(1.05)}
.step-num{font-family:'Space Grotesk';color:var(--blue);font-weight:700;font-size:.9rem;letter-spacing:.15em;margin-bottom:6px}
.step h3{font-size:1.05rem;letter-spacing:.03em;margin-bottom:8px}
.step p{color:var(--muted);font-size:.9rem}

/* ===================== CAPABILITIES ===================== */
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cap-card{
  background:var(--card);border:1px solid var(--border);border-radius:18px;padding:34px 26px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:.4s;position:relative;overflow:hidden;
}
.cap-card::before{content:"";position:absolute;inset:0;border-radius:18px;padding:1px;
  background:linear-gradient(135deg,var(--blue),var(--purple));opacity:0;transition:.4s;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude}
.cap-card:hover{transform:translateY(-8px);box-shadow:0 0 40px rgba(0,212,255,.2)}
.cap-card:hover::before{opacity:1}
.cap-icon{font-size:2.2rem;margin-bottom:16px}
.cap-card h3{font-size:1.12rem;margin-bottom:10px}
.cap-card p{color:var(--muted);font-size:.92rem}

/* ===================== PROJECTS ===================== */
.proj-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.proj-card{
  background:var(--card);border:1px solid var(--border);border-radius:20px;overflow:hidden;transition:.4s;
}
.proj-card:hover{transform:translateY(-6px);border-color:rgba(0,212,255,.4);box-shadow:0 0 45px rgba(0,212,255,.18)}
.proj-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#000}
.proj-media img,.proj-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.proj-media img{filter:grayscale(100%);transition:filter .5s,opacity .5s;z-index:1}
.proj-media video{opacity:0;transition:opacity .5s;z-index:0}
.proj-card:hover .proj-media img{filter:grayscale(0%);opacity:0}
.proj-card:hover .proj-media video{opacity:1;z-index:2}
.proj-body{padding:28px}
.proj-body h3{font-size:1.4rem;margin-bottom:14px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tags span{font-size:.75rem;padding:5px 12px;border-radius:50px;background:rgba(0,212,255,.08);border:1px solid rgba(0,212,255,.25);color:var(--blue);font-weight:500}
.proj-body p{color:var(--muted);font-size:.95rem}

/* ===================== CDSS FEATURE ===================== */
.cdss{position:relative;min-height:70vh;display:grid;place-items:center;overflow:hidden;text-align:center}
.cdss-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.cdss-overlay{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(10,10,15,.85),rgba(10,10,15,.75)),radial-gradient(circle at center,rgba(139,0,255,.15),transparent 60%)}
.cdss-content{position:relative;z-index:2;max-width:800px;padding:80px 20px}
.cdss-content h2{font-size:clamp(2rem,5vw,3.4rem);margin-bottom:20px}
.cdss-content p{color:var(--white);font-size:1.15rem;opacity:.85}

/* ===================== STATS ===================== */
.stats{background:linear-gradient(180deg,var(--black),var(--black-2))}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{text-align:center;padding:30px 20px;border:1px solid var(--border);border-radius:18px;background:var(--card)}
.stat .counter{font-size:clamp(2.2rem,4.5vw,3.4rem)}
.stat p{color:var(--muted);margin-top:8px;font-size:.95rem;font-weight:500}

/* ===================== CONTACT ===================== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.contact-left .section-title{text-align:left}
#contact-form{margin-top:30px}
.field{margin-bottom:16px}
.field input,.field textarea{
  width:100%;padding:15px 18px;border-radius:12px;background:rgba(255,255,255,.04);
  border:1px solid var(--border);color:var(--white);font-family:'Inter';font-size:1rem;transition:.3s;resize:vertical;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 20px rgba(0,212,255,.2)}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.contact-cta-card{
  background:var(--card);border:1px solid var(--border);border-radius:24px;padding:44px 38px;
  backdrop-filter:blur(10px);box-shadow:0 0 50px rgba(139,0,255,.12);
}
.contact-cta-card h3{font-size:1.6rem;margin-bottom:14px}
.contact-slogan{font-family:'Space Grotesk';font-size:1.4rem;font-weight:700;letter-spacing:.05em;margin-bottom:28px}
.contact-info{list-style:none;margin-bottom:28px}
.contact-info li{display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:1px solid var(--border);font-size:1.05rem}
.ci-icon{font-size:1.2rem}
.contact-info a:hover{color:var(--blue)}

/* ===================== FOOTER ===================== */
.footer{border-top:1px solid var(--border);padding-top:60px;background:var(--black-2)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;align-items:center;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:14px}
.footer-name{font-family:'Space Grotesk';font-weight:700;letter-spacing:.02em}
.footer-slogan{color:var(--blue);font-size:.85rem;letter-spacing:.1em}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-links a{color:var(--muted);transition:.25s}
.footer-links a:hover{color:var(--white)}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact a{color:var(--muted);transition:.25s}
.footer-contact a:hover{color:var(--blue)}
.footer-bottom{border-top:1px solid var(--border);padding:24px 0;text-align:center}
.footer-bottom p{color:var(--muted);font-size:.85rem}

/* ===================== RESPONSIVE ===================== */
@media(max-width:900px){
  .nav-links{position:fixed;top:0;right:-100%;height:100vh;width:70%;max-width:320px;
    flex-direction:column;justify-content:center;gap:28px;background:rgba(10,10,15,.97);
    backdrop-filter:blur(20px);transition:right .4s;border-left:1px solid var(--border)}
  .nav-links.open{right:0}
  .nav-toggle{display:block;z-index:1001}
  .barrier-grid,.cap-grid,.stats-grid{grid-template-columns:repeat(2,1fr)}
  .proj-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr;gap:36px}
  .timeline-line{display:none}
  .contact-grid,.footer-grid{grid-template-columns:1fr;gap:34px}
  .section{padding:80px 0}
}
@media(max-width:520px){
  .barrier-grid,.cap-grid,.stats-grid{grid-template-columns:1fr}
}