/* ============================================================
   BSN · INGENIERÍA & SEGURIDAD — Landing premium conceptual
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800;900&family=Saira:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --ink:#00163A;          /* azul oscuro base */
  --ink-950:#00102c;
  --ink-900:#031b46;
  --ink-800:#06204f;
  --blue:#284FFD;         /* azul eléctrico */
  --cyan:#00FFEC;         /* verde/cyan eléctrico */
  --white:#ffffff;
  --grey:#cacbcc;
  --grey-dim:rgba(202,203,204,.62);
  --line:rgba(255,255,255,.12);
  --line-soft:rgba(255,255,255,.07);
  --display:'Outfit',sans-serif;
  --body:'Saira',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --pad:clamp(20px,5vw,96px);
  --maxw:1440px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--body);
  background:var(--ink-950);
  color:var(--white);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  line-height:1.5;
}
::selection{background:var(--cyan);color:var(--ink)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}

/* ---------- shared typographic atoms ---------- */
.eyebrow{
  font-family:var(--mono);
  font-size:12px;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;
  color:var(--cyan);
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{
  content:"";width:24px;height:1px;background:var(--cyan);opacity:.7;
}
.eyebrow.muted{color:var(--grey-dim)}
.eyebrow.muted::before{background:var(--grey-dim)}
.display{
  font-family:var(--display);
  font-weight:800;
  line-height:.98;
  letter-spacing:.005em;
  text-transform:uppercase;
}
.kicker-num{font-family:var(--mono);font-size:13px;color:var(--grey-dim);letter-spacing:.1em}
.lead{font-size:clamp(16px,1.4vw,20px);color:var(--grey);max-width:56ch;font-weight:300}

/* ---------- buttons ---------- */
.btn{
  font-family:var(--mono);font-size:13px;font-weight:500;
  letter-spacing:.12em;text-transform:uppercase;
  display:inline-flex;align-items:center;gap:12px;
  padding:16px 26px;border:1px solid var(--line);
  background:transparent;color:var(--white);cursor:pointer;
  transition:.35s cubic-bezier(.2,.7,.2,1);position:relative;overflow:hidden;
}
.btn .ar{transition:transform .35s}
.btn:hover .ar{transform:translateX(4px)}
.btn-primary{background:var(--cyan);color:var(--ink);border-color:var(--cyan)}
.btn-primary:hover{background:#5dfff3;box-shadow:0 0 0 1px var(--cyan),0 14px 40px -12px rgba(0,255,236,.5)}
.btn-ghost:hover{border-color:var(--white);background:rgba(255,255,255,.04)}

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px var(--pad);
  transition:background .4s,border-color .4s,padding .4s;
  border-bottom:1px solid transparent;
}
.nav.solid{
  background:rgba(0,16,44,.78);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
  padding-top:14px;padding-bottom:14px;
}
.brand{display:flex;align-items:center}
.brand-logo{height:46px;width:auto;display:block;transition:height .4s}
.nav.solid .brand-logo{height:39px}
.nav-links{display:flex;gap:34px;align-items:center}
.nav-links a{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--grey);transition:color .25s;position:relative;
}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;background:var(--cyan);transition:width .3s}
.nav-links a:hover{color:var(--white)}
.nav-links a:hover::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:16px}
.nav-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.nav-burger span{width:24px;height:2px;background:var(--white)}

/* ============================================================
   HERO (sticky transform)
   ============================================================ */
.hero-track{position:relative;height:230vh;background:var(--ink-950)}
.hero-sticky{
  position:sticky;top:0;height:100vh;overflow:hidden;
  --p:0;  /* scroll progress 0..1 injected by JS */
}
/* full-bleed media that docks into a frame as --p grows */
.hero-media{
  position:absolute;
  top:calc(var(--p) * 12vh);
  left:calc(var(--p) * 9vw);
  right:calc(var(--p) * 9vw);
  bottom:calc(var(--p) * 30vh);
  border-radius:calc(var(--p) * 4px);
  overflow:hidden;
  border:1px solid rgba(255,255,255,calc(var(--p) * .18));
  box-shadow:0 calc(var(--p) * 60px) calc(var(--p) * 120px) -40px rgba(0,0,0,calc(var(--p) * .9));
  will-change:top,left,right,bottom;
  z-index:1;
}
/* cyan accent edge that intensifies as it docks */
.hero-media::after{
  content:"";position:absolute;left:0;top:0;height:2px;width:100%;
  background:linear-gradient(90deg,var(--cyan),transparent 60%);
  opacity:var(--p);z-index:6;
}
.hero-video{
  position:absolute;inset:-2%;width:104%;height:104%;
  background:
    radial-gradient(120% 90% at 70% 8%, rgba(40,79,253,.42), transparent 55%),
    radial-gradient(90% 120% at 12% 95%, rgba(0,255,236,.20), transparent 52%),
    linear-gradient(160deg,#0b3580 0%,#052253 42%,#01122f 100%);
  transform:scale(calc(1.08 - var(--p) * .08));
}
/* faint technical scan lines on the "footage" */
.hero-video::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(0deg,transparent 0 3px,rgba(255,255,255,.022) 3px 4px);
  mix-blend-mode:overlay;
}
.hero-video::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,8,31,.1) 0%,rgba(0,8,31,.55) 70%,rgba(0,8,31,.9) 100%);
}
/* moving light sweep to imply motion footage */
.hero-sweep{
  position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(115deg,transparent 38%,rgba(0,255,236,.07) 50%,transparent 62%);
  background-size:280% 100%;
  animation:sweep 8s linear infinite;
}
@keyframes sweep{from{background-position:140% 0}to{background-position:-140% 0}}

/* placeholder badge centered on footage */
.hero-reel{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  z-index:3;text-align:center;
  opacity:calc(1 - var(--p) * 1.6);
  transition:opacity .2s;
}
.hero-reel .play{
  width:72px;height:72px;border:1px solid var(--line);border-radius:50%;
  display:grid;place-items:center;margin:0 auto 18px;backdrop-filter:blur(4px);
  background:rgba(0,16,44,.35);
}
.hero-reel .play i{
  width:0;height:0;border-left:14px solid var(--cyan);
  border-top:9px solid transparent;border-bottom:9px solid transparent;margin-left:4px;
}
.hero-reel small{font-family:var(--mono);font-size:11px;letter-spacing:.28em;color:var(--grey-dim);text-transform:uppercase}

/* corner frame tags that fade IN as the footage docks */
.frame-tag{
  position:absolute;z-index:6;font-family:var(--mono);font-size:10px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--grey);display:flex;align-items:center;gap:8px;
  opacity:calc((var(--p) - .55) * 3);pointer-events:none;
}
.frame-tag.tl{left:18px;top:16px}
.frame-tag.br{right:18px;bottom:16px;color:var(--cyan)}
.frame-tag .dt{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 3px rgba(0,255,236,.2);animation:blink 1.6s steps(1) infinite}
@keyframes blink{50%{opacity:.25}}

/* giant official isotipo watermark — brand depth element */
.hero-iso{
  position:absolute;z-index:2;right:-6%;top:50%;
  transform:translateY(-50%) scale(calc(1 + var(--p)*.04));
  width:42%;height:auto;object-fit:contain;
  opacity:calc(.10 + var(--p)*.09);
  pointer-events:none;
}

/* ---- hero text overlay ---- */
.hero-content{
  position:absolute;z-index:4;left:var(--pad);right:var(--pad);bottom:7vh;
  transform:translateY(calc(var(--p) * -7vh));
  transform-origin:left bottom;
  max-width:980px;
  opacity:calc(1 - var(--p) * 1.8);
  will-change:opacity,transform;
}
.hero-content .eyebrow{margin-bottom:20px}
.hero-h1{
  font-size:clamp(2.05rem,4.3vw,4.6rem);
  margin-bottom:24px;max-width:17ch;
}
.hero-sub{
  font-size:clamp(15px,1.45vw,20px);font-weight:300;color:var(--grey);
  max-width:62ch;margin-bottom:34px;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

/* console strip that appears when the video docks ("nuevos bloques") */
.hero-dock{
  position:absolute;z-index:4;left:var(--pad);right:var(--pad);bottom:8vh;
  display:flex;justify-content:space-between;align-items:flex-end;gap:40px;flex-wrap:wrap;
  opacity:calc((var(--p) - .5) * 2.6);
  transform:translateY(calc((1 - var(--p)) * 26px));
  pointer-events:none;
}
.hd-left{max-width:46ch}
.hd-left .eyebrow{margin-bottom:14px}
.hd-left p{font-size:clamp(14px,1.2vw,17px);color:var(--grey);font-weight:300}
.hd-chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--white);padding:9px 14px;border:1px solid var(--line);background:rgba(0,16,44,.5);
  display:inline-flex;align-items:center;gap:8px;backdrop-filter:blur(4px);
}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--cyan)}

/* scroll hint */
.hero-hint{
  position:absolute;left:50%;bottom:24px;transform:translateX(-50%);z-index:5;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.26em;text-transform:uppercase;color:var(--grey-dim);
  display:flex;flex-direction:column;align-items:center;gap:8px;
  opacity:calc(1 - var(--p)*2.4);
}
.hero-hint .bar{width:1px;height:34px;background:linear-gradient(var(--cyan),transparent);overflow:hidden;position:relative}
.hero-hint .bar::after{content:"";position:absolute;top:-34px;left:0;width:1px;height:34px;background:var(--cyan);animation:drop 2.2s cubic-bezier(.7,0,.3,1) infinite}
@keyframes drop{to{top:34px}}

/* ============================================================
   GENERIC SECTION SHELL
   ============================================================ */
.section{padding:clamp(80px,11vh,150px) var(--pad);position:relative}
.wrap{max-width:var(--maxw);margin:0 auto}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;flex-wrap:wrap;margin-bottom:64px}
.sec-head h2{font-size:clamp(2rem,4.4vw,4rem);max-width:16ch}
.sec-head .eyebrow{margin-bottom:18px}

.divider{height:1px;background:var(--line-soft);width:100%}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}

/* ============================================================
   CAPABILITIES STRIP
   ============================================================ */
.bridge{background:linear-gradient(180deg,var(--ink-950),var(--ink-900));border-top:1px solid var(--line-soft)}
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft)}
.cap{background:var(--ink-900);padding:38px 30px;min-height:230px;display:flex;flex-direction:column;justify-content:space-between;transition:background .4s}
.cap:hover{background:var(--ink-800)}
.cap .n{font-family:var(--mono);font-size:12px;color:var(--cyan);letter-spacing:.1em}
.cap-top{display:flex;justify-content:space-between;align-items:flex-start;gap:14px}
.cap-ico{height:44px;width:44px;object-fit:contain;flex:none;margin-top:-4px}
.cap h3{font-family:var(--display);font-weight:700;font-size:21px;text-transform:uppercase;font-stretch:110%;line-height:1.05;margin-bottom:10px}
.cap p{font-size:14px;color:var(--grey-dim);font-weight:300}

/* ============================================================
   INTEGRATED SYSTEM (technical diagram)
   ============================================================ */
.system{background:var(--ink-900);overflow:hidden}
.sys-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:60px;align-items:center}
.sys-copy h2{font-size:clamp(2rem,4vw,3.6rem);margin:18px 0 24px}
.sys-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.sys-tag{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;padding:8px 14px;border:1px solid var(--line);color:var(--white);display:inline-flex;align-items:center;gap:8px}
.sys-tag img{height:16px;width:16px;object-fit:contain}
.sys-tag.on{background:var(--blue);border-color:var(--blue)}
.sys-list{display:flex;flex-direction:column;gap:2px;margin-top:34px;border-top:1px solid var(--line-soft)}
.sys-row{display:grid;grid-template-columns:34px 1fr auto;gap:18px;align-items:center;padding:18px 4px;border-bottom:1px solid var(--line-soft);cursor:default;transition:.3s}
.sys-row:hover{padding-left:14px;background:linear-gradient(90deg,rgba(40,79,253,.12),transparent)}
.sys-row .sx{width:26px;height:26px;object-fit:contain}
.sys-row .nm{font-family:var(--display);font-weight:600;text-transform:uppercase;font-size:16px;letter-spacing:.02em}
.sys-row .ds{grid-column:2;font-size:13px;color:var(--grey-dim);font-weight:300}
.sys-row .vv{font-family:var(--mono);font-size:12px;color:var(--grey)}

/* diagram */
.sys-vis{position:relative;aspect-ratio:4/5;border:1px solid var(--line);background:
  radial-gradient(80% 60% at 50% 30%,rgba(40,79,253,.18),transparent 60%),
  linear-gradient(180deg,#04183f,#00102c);
  overflow:hidden;border-radius:2px}
.sys-vis .grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);background-size:42px 42px;opacity:.6}
.sys-vis .ph{position:absolute;inset:0;display:grid;place-items:center}
.tower{position:relative;width:54%;height:78%;display:flex;flex-direction:column;align-items:center;justify-content:flex-end}
.tower .ph-img{position:absolute;inset:0;background:repeating-linear-gradient(45deg,rgba(255,255,255,.03) 0 10px,transparent 10px 20px);border:1px dashed var(--line);display:grid;place-items:center}
.tower .ph-img span{font-family:var(--mono);font-size:10px;color:var(--grey-dim);letter-spacing:.2em;text-transform:uppercase;text-align:center;padding:0 20px}
/* annotation pins */
.pin{position:absolute;z-index:3;display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase}
.pin .dot{width:9px;height:9px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(0,255,236,.18);flex:none}
.pin .lab{color:var(--white);background:rgba(0,16,44,.7);padding:6px 9px;border:1px solid var(--line);backdrop-filter:blur(4px)}
.pin .lab b{color:var(--cyan);display:block;font-size:9px;color:var(--grey-dim);font-weight:400;margin-top:2px}
.pin.p1{top:9%;left:8%}.pin.p2{top:30%;right:6%}.pin.p3{top:54%;left:5%}.pin.p4{bottom:20%;right:7%}.pin.p5{bottom:6%;left:14%}

/* ============================================================
   SECTORS
   ============================================================ */
.sectors{background:var(--ink-950)}
.sector-list{border-top:1px solid var(--line)}
.sector{
  display:grid;grid-template-columns:90px 1fr auto;gap:30px;align-items:center;
  padding:34px 4px;border-bottom:1px solid var(--line);position:relative;cursor:pointer;
  transition:.45s cubic-bezier(.2,.7,.2,1);
}
.sector .s-ix{font-family:var(--mono);font-size:13px;color:var(--grey-dim)}
.sector h3{font-family:var(--display);font-weight:800;text-transform:uppercase;font-stretch:115%;
  font-size:clamp(1.8rem,4.6vw,3.4rem);line-height:1;transition:color .4s,transform .45s;letter-spacing:-.01em}
.sector .s-meta{font-family:var(--mono);font-size:12px;color:var(--grey-dim);letter-spacing:.06em;text-align:right;max-width:240px}
.sector .s-thumb{
  position:absolute;right:14%;top:50%;transform:translateY(-50%) scale(.9);
  width:230px;height:150px;object-fit:cover;opacity:0;pointer-events:none;
  transition:opacity .45s,transform .45s;z-index:2;
  filter:grayscale(.4) brightness(.62) contrast(1.05);border:1px solid var(--line);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 20%,#000 80%,transparent);
}
.sector:hover{padding-left:24px;background:linear-gradient(90deg,rgba(40,79,253,.1),transparent 70%)}
.sector:hover h3{color:var(--cyan);transform:translateX(4px)}
.sector:hover .s-thumb{opacity:.9;transform:translateY(-50%) scale(1)}

/* ============================================================
   PROOF / PROJECTS GALLERY
   ============================================================ */
.proof{background:linear-gradient(180deg,var(--ink-900),var(--ink-950))}

/* dominant corporate video */
.proof-video{
  position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;
  border:1px solid var(--line);background:var(--ink-800);
  margin-bottom:clamp(28px,4vw,52px);
}
.pv-poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:grayscale(.4) brightness(.46) contrast(1.06) saturate(.85)}
.proof-video::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,16,44,.4),rgba(0,16,44,.82)),
  radial-gradient(circle at 50% 46%,rgba(40,79,253,.28),transparent 62%)}
.pv-iso{position:absolute;right:-3%;top:50%;transform:translateY(-50%);width:30%;height:auto;
  object-fit:contain;opacity:.13;z-index:2;pointer-events:none}
.pv-play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:3;
  width:clamp(72px,7vw,104px);height:clamp(72px,7vw,104px);border-radius:50%;
  border:1px solid rgba(255,255,255,.55);background:rgba(0,16,44,.32);
  backdrop-filter:blur(6px);cursor:pointer;display:grid;place-items:center;
  transition:.4s cubic-bezier(.2,.7,.2,1);
}
.pv-play::before{content:"";position:absolute;inset:-1px;border-radius:50%;
  border:1px solid var(--cyan);opacity:.55;animation:pulse 2.8s ease-out infinite}
.pv-play i{width:0;height:0;border-left:22px solid var(--white);
  border-top:14px solid transparent;border-bottom:14px solid transparent;margin-left:6px;transition:.4s}
.pv-play:hover{background:var(--cyan);border-color:var(--cyan);
  box-shadow:0 0 0 1px var(--cyan),0 20px 56px -14px rgba(0,255,236,.55)}
.pv-play:hover i{border-left-color:var(--ink)}
@keyframes pulse{0%{transform:scale(1);opacity:.55}100%{transform:scale(1.55);opacity:0}}
.pv-tag{position:absolute;left:22px;top:20px;z-index:3;font-family:var(--mono);font-size:11px;
  letter-spacing:.16em;text-transform:uppercase;color:var(--white);display:flex;align-items:center;gap:9px}
.pv-tag .dt{width:7px;height:7px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 3px rgba(0,255,236,.2);animation:blink 1.6s steps(1) infinite}
.pv-label{position:absolute;left:22px;bottom:18px;z-index:3;font-family:var(--display);
  font-weight:700;text-transform:uppercase;font-size:clamp(15px,1.7vw,23px);color:var(--white);letter-spacing:.01em}
.pv-time{position:absolute;right:22px;bottom:18px;z-index:3;font-family:var(--mono);font-size:11px;
  letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}

/* 3 áreas destacadas */
.proof-areas{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft)}
.parea{background:var(--ink-900);padding:clamp(28px,3vw,38px) clamp(24px,2.4vw,32px);
  display:flex;flex-direction:column;gap:14px;transition:background .4s}
.parea:hover{background:var(--ink-800)}
.parea img{width:46px;height:46px;object-fit:contain}
.parea h3{font-family:var(--display);font-weight:700;text-transform:uppercase;font-size:19px;letter-spacing:.01em;line-height:1.05}
.parea p{font-size:14px;color:var(--grey-dim);font-weight:300}

/* ============================================================
   CTA BAND + FOOTER
   ============================================================ */
.cta-band{position:relative;background:var(--ink);overflow:hidden;border-top:1px solid var(--line-soft)}
.cta-band .biso{position:absolute;right:-8%;top:50%;transform:translateY(-50%);height:auto;width:44%;object-fit:contain;opacity:.09;pointer-events:none}
.cta-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:clamp(70px,10vh,130px) var(--pad)}
.cta-inner h2{font-size:clamp(2.2rem,5.2vw,5rem);max-width:16ch;margin:22px 0 30px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}

.footer{background:var(--ink-950);border-top:1px solid var(--line);padding:70px var(--pad) 40px}
.foot-grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.foot-grid h4{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--grey-dim);margin-bottom:18px}
.foot-grid a,.foot-grid p{font-size:14px;color:var(--grey);font-weight:300;margin-bottom:9px;transition:color .25s}
.foot-grid a:hover{color:var(--cyan)}
.foot-logo{height:52px;width:auto;display:block;margin-bottom:6px}
.foot-brand p{margin-top:18px;max-width:34ch}
.foot-bottom{max-width:var(--maxw);margin:48px auto 0;padding-top:24px;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--grey-dim);text-transform:uppercase}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:1080px){
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .sys-grid{grid-template-columns:1fr;gap:44px}
  .sys-vis{max-width:460px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .proof-areas{grid-template-columns:1fr}
}
@media(max-width:760px){
  :root{--pad:20px}
  .nav-links{display:none}
  .nav-burger{display:flex}
  .nav-cta .btn{display:none}
  .hero-track{height:200vh}
  .hero-meta{display:none}
  .hero-content{bottom:14vh}
  .sec-head{margin-bottom:42px}
  .cap-grid{grid-template-columns:1fr}
  .sector{grid-template-columns:50px 1fr;gap:16px}
  .sector .s-meta{display:none}
  .sector .s-thumb{display:none}
  .foot-grid{grid-template-columns:1fr}
}
@media(max-height:840px) and (min-width:761px){
  .hero-h1{font-size:clamp(1.7rem,3.2vw,3rem);margin-bottom:18px}
  .hero-content{bottom:5vh}
  .hero-content .eyebrow{margin-bottom:12px}
  .hero-sub{margin-bottom:22px;font-size:15px}
}
@media(prefers-reduced-motion:reduce){
  .hero-sweep,.hero-hint .bar::after,.frame-tag .dt{animation:none}
  .reveal{opacity:1;transform:none}
}