/* TwinTech XR — brand system */
@font-face{font-family:'Pretendard';font-weight:500;font-style:normal;font-display:swap;
  src:url(pretendard-500.woff2) format('woff2')}
@font-face{font-family:'Pretendard';font-weight:600;font-style:normal;font-display:swap;
  src:url(pretendard-600.woff2) format('woff2')}

:root{
  --teal:#4df0d6; --teal-d:#2b8779;
  --ink:#F2F6F7; --dim:#C9D6D8; --faint:#8FA3A6;
  --bg0:#02070B; --panel:rgba(8,20,28,.55); --line:rgba(77,240,214,.22); --line-s:rgba(143,163,166,.16);
  --sans:"Pretendard",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg0);color:var(--ink);font-family:var(--sans);font-weight:500;
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
#bg{position:fixed;inset:0;z-index:-2;
  background:radial-gradient(120% 95% at 78% 8%,#1b262c 0%,#0d151a 42%,#050c11 72%,#02070B 100%),
             linear-gradient(115deg,#02070B 0%,#0b1318 55%,#161e23 100%)}
#bg::after{content:"";position:absolute;inset:0;
  background:radial-gradient(130% 100% at 50% 40%,transparent 55%,rgba(0,0,0,.5) 100%)}
#twin{position:fixed;inset:0;z-index:-1;width:100%;height:100%}

a{color:var(--teal);text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
section{padding:110px 0}
h1,h2,h3{font-weight:600;letter-spacing:-.015em;line-height:1.12}
.dot{color:var(--teal)}

/* nav */
nav{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(2,7,11,.72);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line-s)}
.nav-in{display:flex;align-items:center;gap:28px;height:64px}
.nav-logo{height:26px;display:block}
.nav-logo svg{height:100%;width:auto;display:block}
nav .links{display:flex;gap:24px;margin-left:auto;align-items:center}
nav .links a{color:var(--dim);font-size:14px;font-weight:600;letter-spacing:.02em;transition:color .2s}
nav .links a:hover{color:var(--teal)}
.cta{display:inline-block;font-weight:600;font-size:14px;color:#04121b!important;
  background:linear-gradient(120deg,var(--teal),#9affc8);padding:10px 22px;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
  transition:transform .18s,box-shadow .18s}
.cta:hover{transform:translateY(-2px);box-shadow:0 6px 30px rgba(77,240,214,.35)}
.cta.big{font-size:16px;padding:15px 34px}

/* hero */
#hero{min-height:100vh;display:flex;align-items:center;padding:120px 0 80px}
.kicker{font-size:13px;letter-spacing:.3em;color:var(--teal);font-weight:600;margin-bottom:18px}
#hero h1{font-size:clamp(38px,5.6vw,74px);max-width:13ch}
#hero p.lead{margin:26px 0 36px;font-size:clamp(16px,1.6vw,20px);color:var(--dim);max-width:52ch}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.ghost{font-weight:600;font-size:15px;color:var(--ink);border:1px solid var(--line);
  padding:14px 26px;transition:border-color .2s,color .2s;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px))}
.ghost:hover{border-color:var(--teal);color:var(--teal)}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:44px}
.badge{font-size:11.5px;letter-spacing:.14em;font-weight:600;color:var(--faint);
  border:1px solid var(--line-s);padding:7px 13px}

/* section headers */
.sh{margin-bottom:52px;max-width:760px}
.sh .kicker{margin-bottom:12px}
.sh h2{font-size:clamp(28px,3.6vw,46px)}
.sh p{margin-top:14px;color:var(--dim);font-size:17px}

/* cards */
.grid{display:grid;gap:18px}
.g3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.card{background:var(--panel);border:1px solid var(--line-s);padding:28px 26px;
  transition:border-color .25s,transform .25s;backdrop-filter:blur(6px)}
.card:hover{border-color:var(--line);transform:translateY(-4px)}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--dim);font-size:15px}
.card .n{font-size:12px;letter-spacing:.2em;color:var(--teal);font-weight:600;display:block;margin-bottom:14px}
.card ul{margin:12px 0 0;padding-left:0;list-style:none}
.card li{position:relative;padding-left:22px;color:var(--dim);font-size:14.5px;margin-bottom:7px}
.card li::before{content:"";position:absolute;left:2px;top:9px;width:7px;height:7px;
  border-radius:50%;background:var(--teal)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px;margin-top:56px}
.stat{border-left:2px solid var(--teal);padding:6px 0 6px 20px}
.stat b{font-size:34px;font-weight:600;display:block;line-height:1.1}
.stat span{color:var(--faint);font-size:13.5px}

/* sim teaser */
#sim-teaser .frame{position:relative;border:1px solid var(--line);background:#050d12;
  aspect-ratio:16/7;overflow:hidden;display:block}
#sim-teaser canvas{width:100%;height:100%;display:block}
#sim-teaser .overlay{position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:18px;background:rgba(2,8,12,.25);transition:background .3s}
#sim-teaser .frame:hover .overlay{background:rgba(2,8,12,.05)}

/* contact */
#contacto .card{max-width:640px}
.contact-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}

footer{border-top:1px solid var(--line-s);padding:34px 0;color:var(--faint);font-size:13px}
.foot-in{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}

/* reveals */
.rv{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.16,.84,.28,1),transform .7s cubic-bezier(.16,.84,.28,1)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.rv{opacity:1;transform:none}}
@media (max-width:760px){nav .links a:not(.cta){display:none}section{padding:70px 0}}