:root{
  --navy:#0D2E5E;
  --navy-dark:#061D35;
  --orange:#F57C00;
  --orange-dark:#D96400;
  --white:#FFFFFF;
  --black:#000000;
  --text:#0B2443;
  --muted:#5E6C7C;
  --line:#E7EBF0;
  --bg:#F7F8FA;
  --shadow:0 12px 32px rgba(6,29,53,.10);
  --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Arial,sans-serif;color:var(--text);background:#fff;line-height:1.55}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
.container{width:min(1180px,calc(100% - 48px));margin:0 auto}
.site-header{height:78px;background:#fff;position:sticky;top:0;z-index:1000;border-bottom:1px solid rgba(13,46,94,.06)}
.header-inner{height:100%;display:flex;align-items:center;gap:24px}
.brand{width:175px;flex:0 0 175px}
.brand img{width:160px;height:auto}
.main-nav{display:flex;align-items:center;justify-content:center;gap:27px;flex:1}
.main-nav a{font-size:13px;font-weight:600;color:#142B49;position:relative;padding:26px 0 22px}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:13px;height:2px;background:var(--orange);transform:scaleX(0);transform-origin:left;transition:.2s}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--orange)}
.header-actions{display:flex;align-items:center;gap:22px;white-space:nowrap}
.phone{font-weight:700;font-size:14px;color:var(--navy)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:9px;text-transform:uppercase;font-weight:800;letter-spacing:.01em;transition:.2s;border:1px solid transparent}
.btn:hover{transform:translateY(-1px)}
.btn-orange{background:var(--orange);color:#fff;padding:14px 22px}
.btn-orange:hover{background:var(--orange-dark)}
.btn-outline{color:#fff;border-color:rgba(255,255,255,.75);background:rgba(8,31,54,.24)}
.btn-outline:hover{background:#fff;color:var(--navy)}
.btn-large{padding:12px 18px;font-size:12px}
.menu-toggle{display:none;border:0;background:none;font-size:30px;color:var(--navy);cursor:pointer}

.hero{height:438px;position:relative;overflow:hidden;background:var(--navy-dark)}
.hero-media{position:absolute;inset:0;background:url("hero-tca.webp") center 40%/cover no-repeat}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,29,54,.96) 0%,rgba(6,41,72,.82) 31%,rgba(8,51,86,.42) 58%,rgba(0,0,0,.06) 82%)}
.hero-content{position:relative;height:100%;display:flex;align-items:center}
.hero-copy{width:50%;color:#fff;padding-bottom:2px}
.hero h1{font-size:41px;line-height:1.08;margin:0 0 18px;font-weight:800;letter-spacing:-.035em}
.accent-line{display:block;width:64px;height:4px;background:var(--orange);margin:14px 0 22px}
.hero p{font-size:15px;line-height:1.55;max-width:570px;margin:0;color:#F4F6F8}
.hero-buttons{display:flex;gap:13px;margin-top:22px}

.section{padding:72px 0}
.about{background:#fff}
.about-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:58px;align-items:center}
.about-photo img{width:100%;height:410px;object-fit:cover;border-radius:16px;box-shadow:var(--shadow)}
.eyebrow{text-transform:uppercase;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.04em;margin:0 0 10px}
h2{font-size:36px;line-height:1.15;letter-spacing:-.025em;margin:0;color:var(--navy)}
.about-copy>p:not(.eyebrow){font-size:15px;color:#24384E;margin:0 0 14px}
.values{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:28px}
.value{text-align:center;padding:0 12px;border-right:1px solid var(--line)}
.value:last-child{border-right:0}
.value-icon{font-size:30px;line-height:1;color:var(--navy);height:40px}
.value strong{display:block;font-size:12px;color:var(--navy);margin:6px 0 1px}
.value span{font-size:10px;color:var(--muted)}

.services{background:linear-gradient(#fff,#fbfbfc)}
.services h2{font-size:34px}
.service-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:34px}
.service-card{position:relative;background:#fff;border:1px solid #E8ECF1;border-radius:14px;overflow:hidden;box-shadow:0 8px 24px rgba(6,29,53,.08);min-height:320px}
.service-visual{height:116px;background-size:cover;background-position:center}
.service-visual-1{background-image:url("servico-instalacoes-industriais-real.webp");background-position:35% 50%}
.service-visual-3{background-image:linear-gradient(rgba(13,46,94,.30),rgba(13,46,94,.10)),url("tanque-vopak.webp");background-position:78% 22%}
.service-visual-4{background-image:linear-gradient(rgba(13,46,94,.18),rgba(13,46,94,.18)),url("hero-tca.webp");background-position:80% 35%}
.service-visual-5{background-image:url("equipe-tca.webp");background-position:center 28%}
.service-visual-6{background-image:linear-gradient(rgba(13,46,94,.12),rgba(13,46,94,.12)),url("tanque-vopak.webp");background-position:16% 52%}
.service-icon{position:absolute;top:94px;left:14px;width:46px;height:46px;border-radius:50%;background:var(--orange);border:4px solid #fff;color:#fff;display:grid;place-items:center;font-size:21px;font-weight:800}
.service-body{padding:34px 14px 18px}
.service-body h3{font-size:15px;line-height:1.25;margin:0 0 10px;color:#122B49}
.service-body p{font-size:12px;line-height:1.6;color:#4A5B6F;margin:0}

.cta-wrap{padding-top:20px;padding-bottom:58px}
.cta{background:linear-gradient(105deg,var(--navy-dark),#0D3762);border-radius:14px;padding:28px 38px;display:flex;align-items:center;justify-content:space-between;gap:25px;color:#fff;box-shadow:var(--shadow)}
.cta-copy{display:flex;align-items:center;gap:22px}
.cta-icon{width:64px;height:64px;border:1px solid rgba(255,255,255,.35);border-radius:50%;display:grid;place-items:center;font-size:28px}
.cta h2{color:#fff;font-size:24px;margin-bottom:5px}
.cta p{margin:0;color:#D8E2EC;font-size:14px}
.btn-wide{min-width:310px}

.clients{padding-top:20px}
.client-row{display:grid;grid-template-columns:repeat(6,1fr);gap:30px;align-items:center;margin-top:36px}
.client-row span{font-size:18px;font-weight:800;color:#66717E;text-align:center;filter:grayscale(1)}
.projects{background:var(--bg)}
.projects-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:52px;align-items:center}
.projects p:not(.eyebrow){font-size:15px;color:#40536A}
.projects img{height:390px;width:100%;object-fit:cover;border-radius:16px;box-shadow:var(--shadow)}
.text-link{display:inline-block;margin-top:12px;color:var(--orange);font-weight:800}

.footer{background:linear-gradient(100deg,#061D35,#0D3762);color:#fff}
.footer-grid{display:grid;grid-template-columns:1.4fr .72fr 1fr 1.18fr;gap:55px;padding:58px 0 46px}
.footer-brand img{width:190px;background:#fff;border-radius:7px;padding:8px;margin-bottom:18px}
.footer p{color:#CFD9E3;font-size:13px;max-width:300px}
.footer h3{font-size:13px;text-transform:uppercase;margin:6px 0 16px}
.footer a,.footer span{display:block;color:#E5ECF3;font-size:13px;margin:8px 0}
.footer a:hover{color:#fff}
.footer-btn{margin-top:18px!important;width:100%;text-align:center}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);background:rgba(0,0,0,.16)}
.footer-bottom-inner{min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.footer-bottom span{font-size:11px;color:#C6D1DC}
.whatsapp-float{position:fixed;right:24px;bottom:24px;z-index:999;width:58px;height:58px;border-radius:50%;background:#20B85A;color:white;display:grid;place-items:center;font-size:27px;box-shadow:0 10px 25px rgba(0,0,0,.25)}

@media (max-width:1100px){
  .container{width:min(100% - 36px,1000px)}
  .site-header{height:84px}
  .brand{width:175px;flex-basis:175px}
  .brand img{width:165px}
  .main-nav{gap:18px}
  .main-nav a{font-size:13px}
  .header-actions .phone{display:none}
  .hero h1{font-size:46px}
  .service-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:820px){
  .site-header{height:auto}
  .header-inner{min-height:80px;flex-wrap:wrap;position:relative}
  .menu-toggle{display:block;margin-left:auto}
  .header-actions{display:none}
  .main-nav{display:none;position:absolute;left:0;right:0;top:80px;background:#fff;padding:12px 24px 22px;box-shadow:0 12px 22px rgba(6,29,53,.12);flex-direction:column;align-items:flex-start;gap:0}
  .main-nav.open{display:flex}
  .main-nav a{padding:11px 0;width:100%}
  .main-nav a::after{bottom:5px}
  .hero{height:560px}
  .hero-overlay{background:linear-gradient(90deg,rgba(4,29,54,.93),rgba(6,41,72,.72) 65%,rgba(6,41,72,.30))}
  .hero-copy{width:76%}
  .hero h1{font-size:43px}
  .about-grid,.projects-grid{grid-template-columns:1fr}
  .about-photo img,.projects img{height:auto}
  .values{grid-template-columns:repeat(2,1fr);row-gap:20px}
  .value:nth-child(2){border-right:0}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .cta{flex-direction:column;align-items:flex-start}
  .btn-wide{min-width:0}
  .client-row{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .container{width:calc(100% - 28px)}
  .brand{width:170px;flex-basis:170px}
  .brand img{width:165px}
  .hero{height:590px}
  .hero-media{background-position:63% 50%}
  .hero-overlay{background:linear-gradient(90deg,rgba(4,29,54,.96),rgba(6,41,72,.80))}
  .hero-copy{width:100%}
  .hero h1{font-size:35px}
  .hero p{font-size:15px}
  .hero-buttons{flex-direction:column;align-items:flex-start}
  .section{padding:54px 0}
  h2{font-size:30px}
  .about-photo img{height:310px}
  .service-grid{grid-template-columns:1fr}
  .service-card{min-height:auto}
  .service-visual{height:160px}
  .client-row{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom-inner{flex-direction:column;justify-content:center;text-align:center;padding:16px 0}
}

/* V3 desktop proportional refinements */
@media (min-width: 1101px){
  .site-header{height:78px}
  .header-inner{gap:24px}
  .brand{width:175px;flex:0 0 175px}
  .brand img{width:160px;max-width:160px}
  .main-nav{gap:27px}
  .main-nav a{font-size:13px;padding-top:26px;padding-bottom:22px}
  .header-cta{padding:12px 18px;font-size:12px}
  .header-phone{font-size:13px}
  .hero{height:438px;min-height:438px}
  .hero-copy{width:50%}
  .hero h1{font-size:41px;line-height:1.08}
  .hero p{font-size:15px;line-height:1.55;max-width:570px}
  .hero-buttons{margin-top:22px;gap:13px}
  .btn-large{padding:12px 18px;font-size:12px}
}

/* V4 - ajustes finos de desktop e novas imagens de serviços */
@media (min-width:1101px){
  .hero-media{background-position:64% 42%}
  .hero-copy{transform:translate(-4px,10px)}
  .hero .btn-orange.btn-large{padding:13px 21px;font-size:12.5px}
  .about{padding-top:34px}
}
.service-visual-1{background-image:url("servico-instalacoes-industriais-real.webp");background-position:center center}
.service-visual-2{background-image:url("servico-montagem-mecanica.webp");background-position:center center}
.service-visual-3{background-image:url("servico-caldeiraria.webp");background-position:center center}
.service-visual-4{background-image:url("servico-estrutura-metalica.webp");background-position:center center}
.service-visual-5{background-image:url("servico-manutencao-industrial.webp");background-position:center center}
.service-visual-6{background-image:url("servico-instalacoes-industriais.webp");background-position:center center}
.whatsapp-float svg{width:29px;height:29px;display:block;fill:#fff}

/* V5 - seção de clientes */
.client-logo-board{
  margin-top:32px;
  background:#fff;
  border:1px solid #E7EBF0;
  border-radius:16px;
  padding:16px;
  box-shadow:0 10px 28px rgba(6,29,53,.07);
}
.client-logo-board img{
  width:100%;
  height:auto;
  display:block;
  border-radius:10px;
}

/* V6 - grade individual de clientes */
.client-logo-board{display:none!important}
.client-grid{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:18px;
  margin-top:34px;
}
.client-card{
  flex:0 1 calc(25% - 14px);
  min-width:220px;
  height:128px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#fff;
  border:1px solid #E5EAF0;
  border-radius:12px;
  box-shadow:0 6px 18px rgba(6,29,53,.07);
  padding:14px 18px;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.client-card:hover{
  transform:translateY(-3px);
  box-shadow:0 12px 28px rgba(6,29,53,.11);
  border-color:rgba(245,124,0,.32);
}
.client-card img{
  width:100%;
  height:100%;
  object-fit:contain;
}
@media (max-width:900px){
  .client-card{flex-basis:calc(33.333% - 12px);min-width:180px}
}
@media (max-width:650px){
  .client-card{flex-basis:calc(50% - 9px);min-width:145px;height:105px;padding:10px}
}

/* V16 - MULTI Indústria + redistribuição equilibrada dos clientes */
.client-grid{
  display:grid!important;
  grid-template-columns:repeat(4,minmax(0,1fr))!important;
  gap:18px!important;
  align-items:stretch;
  margin-top:34px;
}
.client-card{
  min-width:0!important;
  width:100%!important;
  height:126px!important;
  display:flex!important;
  align-items:center!important;
  justify-content:center!important;
  padding:16px 20px!important;
  background:#fff;
  border:1px solid #E5EAF0;
  border-radius:12px;
  box-shadow:0 6px 18px rgba(6,29,53,.07);
}
.client-card img{
  width:100%!important;
  height:100%!important;
  max-width:230px!important;
  max-height:88px!important;
  object-fit:contain!important;
  display:block!important;
}
@media (max-width:900px){
  .client-grid{grid-template-columns:repeat(3,minmax(0,1fr))!important}
}
@media (max-width:650px){
  .client-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:12px!important}
  .client-card{height:104px!important;padding:12px!important}
}