/* =====================================================================
   PIEZA360 · Hoja de estilos
   Estética: ingeniería / plano técnico. Navy + naranja + blanco.
   ===================================================================== */
:root{
  --navy:        #1F2D3D;
  --navy-deep:   #16212E;
  --navy-abyss:  #0E1721;
  --orange:      #FF6B00;
  --orange-soft: #FF8A33;
  --gray:        #6B7280;
  --gray-soft:   #9AA3AD;
  --light:       #F4F5F7;
  --white:       #FFFFFF;
  --line:        rgba(255,255,255,.10);
  --line-strong: rgba(255,255,255,.22);
  --ink-line:    rgba(31,45,61,.12);

  --f-display: 'Archivo', system-ui, sans-serif;
  --f-body:    'Manrope', system-ui, sans-serif;
  --f-mono:    'JetBrains Mono', ui-monospace, monospace;

  --ease: cubic-bezier(.2,.8,.2,1);
  --container: 1200px;
  --header-h: 90px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--f-body);
  background:var(--white);
  color:var(--navy);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 clamp(20px,5vw,40px)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
section[id]{scroll-margin-top:var(--header-h)}

/* Etiqueta técnica monoespaciada */
.tag{
  font-family:var(--f-mono);font-size:12px;font-weight:500;letter-spacing:.18em;
  text-transform:uppercase;color:var(--orange);display:inline-flex;align-items:center;gap:10px;
}
.tag::before{content:"";width:26px;height:1px;background:var(--orange);display:inline-block}
.tag.light{color:var(--gray)}
.tag.light::before{background:var(--gray)}

h1,h2,h3{font-family:var(--f-display);font-weight:800;line-height:1.02;letter-spacing:-.02em}
h2{font-size:clamp(2rem,5vw,3.4rem);text-transform:uppercase}
.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--gray);max-width:54ch}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--f-display);font-weight:700;
  font-size:.95rem;letter-spacing:.02em;text-transform:uppercase;padding:16px 28px;border-radius:2px;
  cursor:pointer;border:none;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s;position:relative;
}
.btn-primary{background:var(--orange);color:var(--white);box-shadow:0 10px 30px -8px rgba(255,107,0,.6)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 40px -10px rgba(255,107,0,.7);background:var(--orange-soft)}
.btn .arw{transition:transform .25s var(--ease)}
.btn-primary:hover .arw{transform:translateX(5px)}
.btn-ghost{background:transparent;color:var(--white);border:1px solid var(--line-strong)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-3px)}

/* =====================================================================
   HEADER
   ===================================================================== */
.header{position:fixed;top:0;left:0;right:0;z-index:100;padding:22px 0;transition:padding .3s var(--ease),background .3s,box-shadow .3s}
.header.scrolled{background:rgba(22,33,46,.92);backdrop-filter:blur(14px);padding:12px 0;box-shadow:0 1px 0 var(--line)}
.header .container{display:flex;align-items:center;justify-content:space-between}

.brand{display:flex;align-items:center;gap:12px;z-index:2}
.brand-mark{position:relative;width:38px;height:38px;flex-shrink:0}
.brand-mark svg{width:100%;height:100%;display:block}
.brand-word{font-family:var(--f-display);font-weight:900;font-size:1.5rem;letter-spacing:-.02em;color:var(--white);line-height:1}
.brand-word b{color:var(--orange);font-weight:900}

nav.main-nav{display:flex;align-items:center;gap:32px}
nav.main-nav a{font-family:var(--f-body);font-weight:600;font-size:.95rem;color:rgba(255,255,255,.82);transition:color .2s;position:relative}
nav.main-nav a:not(.btn):hover{color:var(--white)}
nav.main-nav a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--orange);transition:width .25s var(--ease)}
nav.main-nav a:not(.btn):hover::after{width:100%}
nav.main-nav .btn{padding:11px 20px;font-size:.85rem}

.burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;z-index:2;padding:6px}
.burger span{width:26px;height:2px;background:var(--white);transition:.3s var(--ease)}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* =====================================================================
   HERO
   ===================================================================== */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  background:radial-gradient(120% 120% at 80% 10%, var(--navy) 0%, var(--navy-deep) 45%, var(--navy-abyss) 100%);
  color:var(--white);padding:140px 0 80px;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(120% 100% at 50% 40%, #000 30%, transparent 78%);
  mask-image:radial-gradient(120% 100% at 50% 40%, #000 30%, transparent 78%);
  opacity:.55;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;position:relative;z-index:2;width:100%}
.hero-eyebrow{margin-bottom:26px}
.hero h1{font-size:clamp(2.7rem,6.2vw,5.2rem);text-transform:uppercase;margin-bottom:24px}
.hero h1 em{font-style:normal;color:var(--orange);display:block}
.hero .lead{color:rgba(255,255,255,.72);margin-bottom:36px;font-size:clamp(1.05rem,1.7vw,1.3rem);max-width:46ch}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px}
.hero-trust{display:flex;flex-wrap:wrap;gap:20px}
.hero-trust span{font-family:var(--f-mono);font-size:.8rem;letter-spacing:.04em;color:rgba(255,255,255,.6);display:inline-flex;align-items:center;gap:8px}
.hero-trust b{color:var(--orange);font-weight:700}

/* Pieza 3D girando 360° (signature) */
.stage{position:relative;height:440px;display:flex;align-items:center;justify-content:center;perspective:1100px}
.arc-ring{position:absolute;width:360px;height:360px;border-radius:50%;border:2px solid transparent;border-top-color:var(--orange);border-right-color:var(--orange);animation:spinArc 5.5s linear infinite;box-shadow:0 0 60px -10px rgba(255,107,0,.35)}
.arc-ring::after{content:"";position:absolute;top:-9px;left:50%;width:16px;height:16px;border-radius:50%;background:var(--orange);transform:translateX(-50%);box-shadow:0 0 20px 4px rgba(255,107,0,.7)}
.arc-ring.inner{width:280px;height:280px;border-top-color:rgba(255,255,255,.25);border-left-color:rgba(255,255,255,.25);border-right-color:transparent;animation:spinArc 8s linear infinite reverse;box-shadow:none}
@keyframes spinArc{to{transform:rotate(360deg)}}
.cube-scene{transform-style:preserve-3d;animation:spinCube 14s linear infinite}
@keyframes spinCube{from{transform:rotateX(-22deg) rotateY(0deg)}to{transform:rotateX(-22deg) rotateY(360deg)}}
.cube{position:relative;width:140px;height:140px;transform-style:preserve-3d}
.face{position:absolute;width:140px;height:140px;background:linear-gradient(135deg,rgba(255,255,255,.10),rgba(255,255,255,.02));border:1.5px solid rgba(255,255,255,.35);display:flex;align-items:center;justify-content:center;font-family:var(--f-mono);font-size:.7rem;letter-spacing:.15em;color:rgba(255,255,255,.5);backdrop-filter:blur(2px)}
.face.bore::after{content:"";width:46px;height:46px;border-radius:50%;border:2px solid var(--orange);background:radial-gradient(circle,rgba(255,107,0,.25),transparent 70%)}
.f-front{transform:translateZ(70px)}
.f-back{transform:rotateY(180deg) translateZ(70px)}
.f-right{transform:rotateY(90deg) translateZ(70px);background:linear-gradient(135deg,rgba(255,107,0,.22),rgba(255,107,0,.04));border-color:rgba(255,107,0,.5)}
.f-left{transform:rotateY(-90deg) translateZ(70px);background:linear-gradient(135deg,rgba(255,107,0,.22),rgba(255,107,0,.04));border-color:rgba(255,107,0,.5)}
.f-top{transform:rotateX(90deg) translateZ(70px)}
.f-bottom{transform:rotateX(-90deg) translateZ(70px)}
.dim{position:absolute;font-family:var(--f-mono);font-size:.68rem;letter-spacing:.1em;color:var(--orange);opacity:.9}
.dim-top{top:26px;left:50%;transform:translateX(-50%)}
.dim-top .bar{width:150px;height:1px;background:var(--orange);position:relative;margin:6px auto 0}
.dim-top .bar::before,.dim-top .bar::after{content:"";position:absolute;top:-4px;width:1px;height:9px;background:var(--orange)}
.dim-top .bar::before{left:0}.dim-top .bar::after{right:0}
.dim-side{top:50%;right:22px;transform:translateY(-50%);text-align:left}
.dim-side .bar{width:1px;height:150px;background:var(--orange);position:relative;margin:6px 0 0 0}
.dim-side .bar::before,.dim-side .bar::after{content:"";position:absolute;left:-4px;width:9px;height:1px;background:var(--orange)}
.dim-side .bar::before{top:0}.dim-side .bar::after{bottom:0}
.spec-badge{position:absolute;bottom:8px;left:8px;font-family:var(--f-mono);font-size:.66rem;color:rgba(255,255,255,.55);letter-spacing:.1em;line-height:1.7}
.spec-badge b{color:var(--orange)}

/* =====================================================================
   TICKER
   ===================================================================== */
.ticker{background:var(--orange);color:var(--white);padding:18px 0;overflow:hidden;white-space:nowrap;position:relative}
.ticker-track{display:inline-flex;gap:40px;animation:scroll 26s linear infinite;font-family:var(--f-display);font-weight:800;font-size:1.05rem;text-transform:uppercase;letter-spacing:.02em}
.ticker-track span{display:inline-flex;align-items:center;gap:40px}
.ticker-track span::after{content:"✦";color:rgba(255,255,255,.55);font-size:.8rem}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* =====================================================================
   SECCIONES BASE
   ===================================================================== */
.section{padding:clamp(70px,10vw,120px) 0;position:relative}
.section-head{margin-bottom:56px;max-width:780px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .tag{justify-content:center}
.section-head h2{margin:18px 0 16px}
.section.dark{background:var(--navy);color:var(--white)}
.section.dark .lead{color:rgba(255,255,255,.66)}
.section.darker{background:var(--navy-deep);color:var(--white)}
.section.darker .lead{color:rgba(255,255,255,.66)}
.section.light-bg{background:var(--light)}

/* ---------- Servicios ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--ink-line);border:1px solid var(--ink-line)}
.svc{background:var(--white);padding:38px 30px 34px;position:relative;transition:background .3s var(--ease),transform .3s var(--ease)}
.svc::before{content:"";position:absolute;top:0;left:0;width:0;height:3px;background:var(--orange);transition:width .35s var(--ease)}
.svc:hover{background:var(--navy);color:var(--white);transform:translateY(-4px);z-index:2}
.svc:hover::before{width:100%}
.svc:hover .svc-num,.svc:hover p{color:rgba(255,255,255,.7)}
.svc:hover .svc-ico{border-color:var(--orange);background:rgba(255,107,0,.12)}
.svc-num{font-family:var(--f-mono);font-size:.75rem;color:var(--gray);letter-spacing:.15em;margin-bottom:22px;display:block;transition:color .3s}
.svc-ico{width:58px;height:58px;border:1.5px solid var(--ink-line);border-radius:3px;display:flex;align-items:center;justify-content:center;margin-bottom:22px;transition:.3s var(--ease)}
.svc-ico svg{width:28px;height:28px;stroke:var(--orange);fill:none;stroke-width:1.7}
.svc h3{font-size:1.15rem;text-transform:none;letter-spacing:-.01em;margin-bottom:12px;line-height:1.2}
.svc p{font-size:.95rem;color:var(--gray);transition:color .3s}

/* ---------- Materiales ---------- */
.mat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mat{border:1px solid var(--line);border-radius:6px;padding:30px 26px;position:relative;overflow:hidden;transition:transform .3s var(--ease),border-color .3s}
.mat:hover{transform:translateY(-6px);border-color:var(--orange)}
.mat .mat-code{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.14em;color:var(--orange);margin-bottom:18px}
.mat h3{font-size:1.2rem;text-transform:none;color:var(--white);margin-bottom:10px}
.mat p{font-size:.92rem;color:rgba(255,255,255,.62)}
.mat .mat-tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}
.mat .mat-tags span{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.06em;color:rgba(255,255,255,.7);border:1px solid var(--line-strong);border-radius:2px;padding:4px 8px}
.mat-note{margin-top:34px;font-family:var(--f-mono);font-size:.82rem;color:var(--gray-soft);text-align:center}

/* ---------- Proceso ---------- */
.process-track{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative}
.process-track::before{content:"";position:absolute;top:34px;left:6%;right:6%;height:2px;background:repeating-linear-gradient(90deg,var(--line-strong) 0 10px,transparent 10px 20px)}
.step{position:relative;z-index:2}
.step-num{width:70px;height:70px;border-radius:50%;background:var(--navy-deep);border:2px solid var(--orange);display:flex;align-items:center;justify-content:center;font-family:var(--f-display);font-weight:900;font-size:1.5rem;color:var(--orange);margin-bottom:24px}
.step-ico{width:30px;height:30px;stroke:var(--orange);fill:none;stroke-width:1.6;margin-bottom:16px}
.step h3{font-size:1.15rem;text-transform:none;letter-spacing:-.01em;margin-bottom:10px}
.step p{font-size:.92rem;color:rgba(255,255,255,.62)}

/* ---------- Sectores ---------- */
.sectors{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sector{border:1px solid var(--ink-line);border-radius:6px;padding:30px 26px;display:flex;gap:20px;align-items:flex-start;transition:.3s var(--ease);background:var(--white)}
.sector:hover{border-color:var(--orange);transform:translateY(-5px);box-shadow:0 20px 40px -20px rgba(31,45,61,.3)}
.sector .s-ico{flex-shrink:0;width:52px;height:52px;border-radius:4px;background:var(--light);display:flex;align-items:center;justify-content:center;transition:background .3s}
.sector:hover .s-ico{background:rgba(255,107,0,.12)}
.sector svg{width:30px;height:30px;stroke:var(--navy);fill:none;stroke-width:1.5;transition:stroke .3s}
.sector:hover svg{stroke:var(--orange)}
.sector h3{font-size:1.05rem;text-transform:none;margin-bottom:6px}
.sector p{font-size:.88rem;color:var(--gray)}

/* ---------- Casos de uso ---------- */
.cases{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.case{border:1px solid var(--line);border-radius:5px;padding:22px 20px;display:flex;flex-direction:column;gap:12px;transition:.3s var(--ease)}
.case:hover{background:rgba(255,107,0,.08);border-color:var(--orange)}
.case .c-num{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.12em;color:var(--orange)}
.case span.c-name{font-family:var(--f-display);font-weight:600;font-size:1rem;color:var(--white);line-height:1.25}

/* ---------- Garantías ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.promise{text-align:left;padding:8px 0}
.promise .p-ico{width:52px;height:52px;border:1.5px solid var(--orange);border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.promise .p-ico svg{width:24px;height:24px;stroke:var(--orange);fill:none;stroke-width:1.7}
.promise h3{font-size:1.05rem;text-transform:none;margin-bottom:8px}
.promise p{font-size:.9rem;color:var(--gray)}
.section.dark .promise p{color:rgba(255,255,255,.6)}

/* ---------- Ideal + valores ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.values{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.values span{font-family:var(--f-mono);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;padding:10px 16px;border:1px solid var(--line-strong);border-radius:2px;color:rgba(255,255,255,.85)}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{border-bottom:1px solid var(--ink-line);padding:6px 0}
.faq summary{list-style:none;cursor:pointer;padding:22px 44px 22px 0;position:relative;font-family:var(--f-display);font-weight:700;font-size:1.1rem;color:var(--navy);transition:color .2s}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--orange)}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-family:var(--f-mono);font-size:1.6rem;color:var(--orange);transition:transform .25s var(--ease)}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 44px 24px 0;color:var(--gray);font-size:1rem;max-width:none}

/* ---------- Franja CTA ---------- */
.cta-band{background:linear-gradient(120deg,var(--orange),var(--orange-soft));color:var(--white);padding:clamp(50px,7vw,80px) 0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:40px 40px;opacity:.5}
.cta-band .container{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-band h2{color:var(--white);max-width:20ch}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.7);color:var(--white)}
.cta-band .btn-ghost:hover{background:var(--white);color:var(--orange);border-color:var(--white)}

/* ---------- Contacto ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:start}
.contact-info h2{margin:18px 0 20px}
.contact-info .note{font-family:var(--f-mono);font-size:.82rem;color:var(--gray);background:var(--light);border-left:3px solid var(--orange);padding:14px 18px;margin-top:26px;line-height:1.7}
.contact-methods{margin-top:32px;display:grid;gap:14px}
.contact-methods a{display:flex;align-items:center;gap:14px;font-weight:600;transition:color .2s}
.contact-methods a:hover{color:var(--orange)}
.contact-methods .ci{width:42px;height:42px;border:1px solid var(--ink-line);border-radius:3px;display:flex;align-items:center;justify-content:center}
.contact-methods svg{width:20px;height:20px;stroke:var(--orange);fill:none;stroke-width:1.7}
form.quote{background:var(--white);border:1px solid var(--ink-line);border-radius:6px;padding:36px;box-shadow:0 30px 60px -30px rgba(31,45,61,.25)}
form.quote .fld{margin-bottom:20px}
form.quote label{display:block;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gray);margin-bottom:8px}
form.quote input,form.quote textarea{width:100%;padding:14px 16px;border:1px solid var(--ink-line);border-radius:3px;font-family:var(--f-body);font-size:1rem;color:var(--navy);background:var(--light);transition:border .2s,background .2s}
form.quote input:focus,form.quote textarea:focus{outline:none;border-color:var(--orange);background:var(--white)}
form.quote textarea{resize:vertical;min-height:120px}
form.quote .btn{width:100%;justify-content:center;margin-top:6px}
form.quote small{display:block;text-align:center;color:var(--gray-soft);font-size:.78rem;margin-top:14px}

/* ---------- Footer ---------- */
footer{background:var(--navy-abyss);color:rgba(255,255,255,.7);padding:70px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid var(--line)}
footer .brand-word{font-size:1.7rem;margin-bottom:16px;display:inline-block}
footer p{font-size:.92rem;max-width:34ch}
.foot-col h4{font-family:var(--f-mono);font-size:.75rem;letter-spacing:.15em;text-transform:uppercase;color:var(--orange);margin-bottom:18px}
.foot-col a{display:block;padding:6px 0;font-size:.92rem;transition:color .2s}
.foot-col a:hover{color:var(--white)}
.foot-bottom{padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-family:var(--f-mono);font-size:.78rem;color:var(--gray)}

/* ---------- WhatsApp flotante ---------- */
.wa-float{position:fixed;bottom:26px;right:26px;z-index:90;width:60px;height:60px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 12px 30px -6px rgba(37,211,102,.6);transition:transform .3s var(--ease);animation:pulse 2.6s infinite}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:32px;height:32px;fill:#fff}
@keyframes pulse{0%{box-shadow:0 12px 30px -6px rgba(37,211,102,.6),0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 12px 30px -6px rgba(37,211,102,.6),0 0 0 16px rgba(37,211,102,0)}100%{box-shadow:0 12px 30px -6px rgba(37,211,102,.6),0 0 0 0 rgba(37,211,102,0)}}

/* ---------- Reveal (con degradación segura) ----------
   El contenido es visible por defecto. Solo se oculta para animar
   cuando el JS ha añadido la clase .js al <html>. Si el JS falla,
   todo se ve igualmente. */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media(max-width:1000px){
  .hero-grid{grid-template-columns:1fr;gap:20px}
  .stage{height:360px;margin-top:10px}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .mat-grid{grid-template-columns:repeat(2,1fr)}
  .process-track{grid-template-columns:repeat(2,1fr);gap:40px 26px}
  .process-track::before{display:none}
  .sectors{grid-template-columns:repeat(2,1fr)}
  .cases{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .split,.contact-grid{grid-template-columns:1fr;gap:40px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  nav.main-nav{position:fixed;inset:0 0 0 auto;width:min(82%,340px);background:var(--navy-deep);flex-direction:column;align-items:flex-start;justify-content:center;gap:22px;padding:40px;transform:translateX(100%);transition:transform .4s var(--ease);box-shadow:-20px 0 60px rgba(0,0,0,.4)}
  nav.main-nav.open{transform:translateX(0)}
  nav.main-nav a{font-size:1.15rem}
  .burger{display:flex}
  .svc-grid,.mat-grid,.sectors,.cases,.grid-4{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .cta-band .container{flex-direction:column;align-items:flex-start}
  .hero h1{font-size:clamp(2.4rem,10vw,3.2rem)}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .js .reveal{opacity:1;transform:none}
}