:root{
  --bg:#01172E;
  --bg-alt:#0B2440;
  --bg-panel:#0F2C4C;
  --copper:#E86C26;
  --copper-light:#F3934F;
  --insulation:#2B8FCD;
  --insulation-light:#5FADE0;
  --yellow:#FABA00;
  --text:#F6F6F6;
  --text-muted:#8FA6C2;
  --border:#173A5E;
  --border-light:#204A75;
  --max:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *{animation-duration:0.001ms !important;transition-duration:0.001ms !important}
}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'IBM Plex Sans', sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3{font-family:'Space Grotesk', sans-serif; font-weight:600; letter-spacing:-0.01em}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:var(--max); margin:0 auto; padding:0 28px}
.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:12.5px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--copper-light);
  display:flex;align-items:center;gap:10px;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1.5px;background:var(--copper);display:inline-block}
section{padding:100px 0}
@media (max-width:720px){ section{padding:64px 0} }

/* ---------- twisted-pair divider (signature motif) ---------- */
.twist-divider{width:100%; height:26px; overflow:hidden; opacity:0.85}
.twist-divider svg{width:100%;height:100%;display:block}

/* ---------- header ---------- */
/* backdrop-filter lives on ::before (not on header itself) so header never
   becomes a containing block for its fixed-position mobile nav child */
header{
  position:sticky; top:0; z-index:50;
  border-bottom:1px solid var(--border);
}
header::before{
  content:"";
  position:absolute; inset:0; z-index:-1;
  background:rgba(20,23,26,0.86);
  backdrop-filter:blur(10px);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 28px;max-width:var(--max);margin:0 auto}
.logo{display:flex;align-items:center;gap:12px;font-family:'Space Grotesk';font-weight:700;font-size:20px;letter-spacing:0.01em}
.logo-mark{height:56px;width:auto;flex-shrink:0;object-fit:contain}
.logo small{display:block;font-family:'IBM Plex Mono';font-weight:400;font-size:9.5px;letter-spacing:0.16em;color:var(--text-muted);margin-top:1px}
nav.links{display:flex;gap:34px;font-size:14.5px}
nav.links a{color:var(--text-muted);text-decoration:none;transition:color .2s}
nav.links a:hover{color:var(--copper-light)}
.cta-btn{
  background:var(--copper); color:#01172E; font-weight:600; font-size:14px;
  padding:11px 20px; border-radius:3px; text-decoration:none; white-space:nowrap;
  border:1px solid var(--copper); transition:background .2s, color .2s;
}
.cta-btn:hover{background:transparent; color:var(--copper-light)}
.cta-btn.ghost{background:transparent;color:var(--text);border:1px solid var(--border-light)}
.cta-btn.ghost:hover{border-color:var(--copper);color:var(--copper-light)}
.menu-toggle{display:none; background:none;border:none;color:var(--text);font-size:26px;cursor:pointer}
@media (max-width:860px){
  nav.links{position:fixed;inset:64px 0 0 0;background:var(--bg);flex-direction:column;padding:36px 28px;gap:26px;font-size:18px;transform:translateY(-110%);transition:transform .3s ease;border-top:1px solid var(--border)}
  nav.links.open{transform:translateY(0)}
  .menu-toggle{display:block}
}

/* ---------- hero ---------- */
.hero{padding:88px 0 100px}
.hero .wrap{display:grid;grid-template-columns:1.05fr 0.95fr;gap:64px;align-items:center}
@media (max-width:940px){ .hero .wrap{grid-template-columns:1fr; gap:48px} .hero{padding:56px 0 72px} }
.hero h1{font-size:clamp(34px,5vw,54px);line-height:1.08;margin-bottom:22px}
.hero h1 .accent{color:var(--copper-light)}
.hero p.lead{font-size:17.5px;color:var(--text-muted);max-width:520px;margin-bottom:32px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap}
.hero-stats div b{font-family:'Space Grotesk';font-size:26px;color:var(--copper-light);display:block}
.hero-stats div span{font-size:12.5px;color:var(--text-muted);font-family:'IBM Plex Mono';letter-spacing:.04em}

/* ---------- CableExpert mockup (signature hero visual) ---------- */
.product-mockup{position:relative}
.product-mockup svg{width:100%;height:auto;overflow:visible}
.pm-eyebrow-in{font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.08em;fill:var(--insulation-light)}
.pm-eyebrow-out{font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.08em;fill:var(--copper-light)}
.pm-label{font-family:'IBM Plex Mono';font-size:8.5px;letter-spacing:.06em;fill:var(--text-muted)}
.pm-value{font-family:'IBM Plex Sans';font-size:12px;fill:var(--text)}
.pm-metric-label{font-family:'IBM Plex Sans';font-size:10.5px;fill:var(--text-muted)}
.pm-metric-blue{font-family:'IBM Plex Mono';font-size:12.5px;font-weight:500;fill:var(--insulation-light)}
.pm-metric-green{font-family:'IBM Plex Mono';font-size:12.5px;font-weight:500;fill:#4ADE80}
.pm-metric-white{font-family:'IBM Plex Mono';font-size:12.5px;font-weight:500;fill:var(--text)}
.pm-subheader{font-family:'IBM Plex Sans';font-size:9px;font-weight:600;letter-spacing:.05em;fill:var(--text-muted)}
.pm-brand{font-family:'Space Grotesk';font-size:12px;font-weight:700;fill:var(--text)}
.pm-btn-text{font-family:'Space Grotesk';font-size:11px;font-weight:600;fill:var(--text)}
.pm-btn-ghost-text{font-family:'Space Grotesk';font-size:10.5px;font-weight:500;fill:var(--text-muted)}
.pm-url{font-family:'IBM Plex Mono';font-size:9px;fill:var(--text-muted)}
.pm-step-num-active{font-family:'IBM Plex Mono';font-size:10px;font-weight:500;fill:#fff}
.pm-step-num{font-family:'IBM Plex Mono';font-size:10px;font-weight:500;fill:var(--text-muted)}
.pm-step-label-active{font-family:'IBM Plex Mono';font-size:8px;letter-spacing:.05em;font-weight:500;fill:var(--insulation-light)}
.pm-step-label{font-family:'IBM Plex Mono';font-size:8px;letter-spacing:.05em;fill:var(--text-muted)}

/* ---------- about / history ---------- */
.split{display:grid;grid-template-columns:0.9fr 1.1fr;gap:70px;align-items:start}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:36px}}
.split h2{font-size:clamp(26px,3.4vw,36px);margin-bottom:22px}
.split p{color:var(--text-muted);margin-bottom:16px;font-size:15.5px;max-width:560px}
.timeline{display:flex;flex-direction:column;gap:0;border-left:1px solid var(--border);padding-left:28px}
.timeline .t-item{position:relative;padding-bottom:30px}
.timeline .t-item:last-child{padding-bottom:0}
.timeline .t-item::before{content:"";position:absolute;left:-33px;top:4px;width:9px;height:9px;border-radius:50%;background:var(--copper);border:2px solid var(--bg)}
.timeline .t-item b{font-family:'Space Grotesk';font-size:22px;color:var(--copper-light);display:block;margin-bottom:4px}
.timeline .t-item span{font-size:13.5px;color:var(--text-muted)}

/* ---------- cable expert ---------- */
.ce-benefits{display:flex;flex-direction:column;gap:22px}
.ce-benefit{display:flex;gap:16px;align-items:flex-start}
.ce-benefit-icon{flex-shrink:0;width:42px;height:42px;border-radius:50%;background:var(--bg-panel);border:1px solid var(--border-light);display:flex;align-items:center;justify-content:center}
.ce-benefit h4{font-size:15px;margin-bottom:3px}
.ce-benefit p{font-size:13.8px;color:var(--text-muted);margin:0;max-width:none}
.ce-cta{background:var(--bg-panel);border:1px solid var(--border-light);border-radius:6px;padding:32px 36px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.ce-cta h3{font-size:19px;margin-bottom:6px}
.ce-cta p{color:var(--text-muted);font-size:14px;margin:0;max-width:none}
@media (max-width:560px){.ce-cta{padding:26px}}

/* ---------- normas / spec sheet ---------- */
.spec-panel{background:var(--bg-alt);border:1px solid var(--border);border-radius:6px;padding:36px}
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:4px;overflow:hidden;margin-top:26px}
@media (max-width:720px){.spec-grid{grid-template-columns:repeat(2,1fr)}}
.spec-cell{background:var(--bg-panel);padding:16px 14px;font-family:'IBM Plex Mono';font-size:13px;color:var(--copper-light);text-align:center;letter-spacing:.03em}

/* ---------- diferenciais ---------- */
.diff-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:2px;background:var(--border);border:1px solid var(--border);border-radius:6px;overflow:hidden}
@media (max-width:720px){.diff-grid{grid-template-columns:1fr}}
.diff-cell{background:var(--bg-alt);padding:26px 28px;display:flex;gap:16px;align-items:flex-start}
.diff-cell svg{flex-shrink:0;margin-top:2px}
.diff-cell p{font-size:15px;color:var(--text)}

/* ---------- mvv cards ---------- */
.mvv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media (max-width:860px){.mvv-grid{grid-template-columns:1fr}}
.mvv-card{background:var(--bg-alt);border:1px solid var(--border);border-radius:6px;padding:30px 28px;border-top:2px solid var(--copper)}
.mvv-card:nth-child(2){border-top-color:var(--insulation)}
.mvv-card:nth-child(3){border-top-color:var(--copper-light)}
.mvv-card h3{font-size:19px;margin-bottom:12px}
.mvv-card p, .mvv-card li{color:var(--text-muted);font-size:14.5px}
.mvv-card ul{padding-left:18px;margin-top:6px}
.mvv-card li{margin-bottom:6px}

/* ---------- quality policy ---------- */
.policy-list{display:flex;flex-direction:column;gap:0;margin-top:8px}
.policy-item{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--border)}
.policy-item:first-child{border-top:1px solid var(--border)}
.policy-mark{width:8px;height:8px;background:var(--copper);flex-shrink:0;margin-top:8px}
.policy-item p{font-size:15.5px;color:var(--text)}

/* ---------- services ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
@media (max-width:940px){.svc-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.svc-grid{grid-template-columns:1fr}}
.svc-card{background:var(--bg-alt);border:1px solid var(--border);border-radius:6px;padding:28px 24px;transition:border-color .2s, transform .2s}
.svc-card:hover{border-color:var(--copper);transform:translateY(-3px)}
.svc-card .svc-icon{margin-bottom:18px}
.svc-card h3{font-size:16.5px;margin-bottom:10px;line-height:1.3}
.svc-card p{font-size:13.8px;color:var(--text-muted)}

/* ---------- contact ---------- */
.contact-wrap{display:grid;grid-template-columns:0.9fr 1.1fr;gap:60px}
@media (max-width:860px){.contact-wrap{grid-template-columns:1fr;gap:40px}}
.contact-info a.big{display:flex;align-items:center;gap:14px;font-family:'Space Grotesk';font-size:20px;color:var(--copper-light);text-decoration:none;margin-bottom:18px}
.contact-info a.big:hover{color:var(--copper)}
.contact-info p{color:var(--text-muted);font-size:14.5px;margin-top:22px;max-width:380px}
form{display:flex;flex-direction:column;gap:16px}
form label{font-family:'IBM Plex Mono';font-size:11.5px;letter-spacing:.08em;color:var(--text-muted);text-transform:uppercase;margin-bottom:6px;display:block}
form input, form textarea{
  width:100%;background:var(--bg-alt);border:1px solid var(--border-light);border-radius:4px;
  padding:13px 14px;color:var(--text);font-family:'IBM Plex Sans';font-size:14.5px;
}
form input:focus, form textarea:focus{outline:2px solid var(--copper);outline-offset:1px;border-color:var(--copper)}
form textarea{resize:vertical;min-height:110px}
form button{margin-top:6px}
.form-privacy{font-size:12px;color:var(--text-muted);margin-top:0;max-width:none}
.form-status{font-size:13.5px;margin-top:0;min-height:0}
.form-status.success{color:var(--insulation-light)}
.form-status.error{color:var(--copper-light)}

footer{border-top:1px solid var(--border);padding:34px 0;background:var(--bg-alt)}
footer .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px}
footer p{font-size:13px;color:var(--text-muted);font-family:'IBM Plex Mono'}

/* ---------- whatsapp float ---------- */
.whatsapp-float{
  position:fixed; right:22px; bottom:22px; z-index:60;
  width:56px; height:56px; border-radius:50%;
  background:#25D366; color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 6px 18px rgba(0,0,0,0.35);
  transition:transform .2s ease, box-shadow .2s ease;
}
.whatsapp-float:hover{transform:scale(1.06); box-shadow:0 8px 22px rgba(0,0,0,0.45)}
@media (max-width:720px){.whatsapp-float{right:16px; bottom:16px; width:52px; height:52px}}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}
.reveal.is-visible{opacity:1;transform:translateY(0)}

:focus-visible{outline:2px solid var(--copper);outline-offset:2px}