/* ==========================================================================
   DENSITEL TRANSFORMADORES — FOLHA DE ESTILOS
   Sistema de design: industrial premium / técnico / robusto
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. TOKENS — cores, tipografia, espaçamento
   -------------------------------------------------------------------------- */
:root{
  /* Paleta oficial */
  --preto-industrial: #101214;
  --grafite-tecnico:  #1B1F23;
  --cinza-chumbo:     #2E3338;
  --cinza-metalico:   #AEB7C0;
  --cinza-claro:      #EEF0F2;
  --off-white:        #F7F7F5;
  --branco:           #FFFFFF;
  --vermelho:         #D92D2B;
  --vermelho-escuro:  #A91F1D;

  /* Tipografia */
  --font-display: 'Manrope', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Espaçamento base */
  --gap-section: clamp(64px, 9vw, 128px);
  --gap-inner: clamp(20px, 3vw, 32px);
  --max-width: 1280px;

  /* Sombras e transições */
  --shadow-card: 0 12px 32px -18px rgba(16,18,20,0.35);
  --transition-fast: 180ms ease;
  --transition-med: 320ms cubic-bezier(.4,0,.2,1);
}

/* --------------------------------------------------------------------------
   2. RESET BÁSICO
   -------------------------------------------------------------------------- */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; scroll-padding-top: 96px; }
body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--grafite-tecnico);
  background: var(--branco);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ list-style: none; margin: 0; padding: 0; }
h1,h2,h3{ font-family: var(--font-display); font-weight: 800; line-height: 1.15; margin: 0; }
p{ margin: 0; }
button{ font-family: inherit; cursor: pointer; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

:focus-visible{ outline: 2px solid var(--vermelho); outline-offset: 3px; }

/* --------------------------------------------------------------------------
   3. BOTÕES
   -------------------------------------------------------------------------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-1px); }
.btn-primary{ background: var(--vermelho); color: var(--branco); }
.btn-primary:hover{ background: var(--vermelho-escuro); }
.btn-outline{ background: transparent; color: var(--branco); border-color: rgba(255,255,255,0.55); }
.btn-outline:hover{ border-color: var(--branco); background: rgba(255,255,255,0.08); }
.btn-outline--light{ color: var(--vermelho); border-color: var(--vermelho); }
.btn-outline--light:hover{ color: var(--vermelho-escuro); border-color: var(--vermelho-escuro); background: rgba(217,45,43,0.08); }
.btn-block{ width: 100%; }
.btn-header{ margin-left: auto; flex-shrink: 0; padding: 10px 18px; font-size: 0.82rem; white-space: nowrap; }

.dropdown-divider{
  display: block;
  padding: 10px 12px 4px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--vermelho);
  border-top: 1px solid var(--cinza-chumbo);
  margin-top: 6px;
}

/* --------------------------------------------------------------------------
   4. HEADER + NAVEGAÇÃO
   -------------------------------------------------------------------------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(16,18,20,0.97);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: box-shadow var(--transition-med);
}
.site-header.is-scrolled{ box-shadow: 0 8px 24px -12px rgba(0,0,0,0.5); }

.header-inner{
  max-width: 1440px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.brand-logo{ height: 30px; width: auto; flex-shrink: 0; }

.main-nav ul{ display: flex; align-items: center; gap: 0; flex-wrap: nowrap; }
.main-nav > ul > li{ position: relative; flex-shrink: 0; }
.main-nav > ul > li > a{
  display: block;
  padding: 10px 9px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--cinza-metalico);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.main-nav > ul > li > a:hover{ color: var(--branco); border-color: var(--vermelho); }

.has-dropdown .dropdown{
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 280px;
  background: var(--grafite-tecnico);
  border: 1px solid var(--cinza-chumbo);
  border-radius: 6px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  box-shadow: 0 20px 40px -16px rgba(0,0,0,0.6);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown{
  opacity: 1; visibility: visible; transform: translateY(0);
}
.dropdown a{
  padding: 9px 12px;
  font-size: 0.84rem;
  color: var(--cinza-metalico);
  border-radius: 4px;
  border-left: 2px solid transparent;
}
.dropdown a:hover{ background: rgba(217,45,43,0.1); color: var(--branco); border-left-color: var(--vermelho); }

.nav-toggle{
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
  margin-left: auto;
}
.nav-toggle span{ width: 24px; height: 2px; background: var(--branco); transition: transform var(--transition-fast), opacity var(--transition-fast); }

/* --------------------------------------------------------------------------
   5. HERO / BANNER
   -------------------------------------------------------------------------- */
.hero{
  position: relative;
  min-height: 92vh;
  overflow: hidden;
  background: var(--preto-industrial);
}
.hero-slide{
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 900ms ease;
}
.hero-slide.is-active{ opacity: 1; visibility: visible; position: relative; }

.hero-bg{
  position: absolute; inset: 0;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}
/* Fotografia industrial real da Densitel, com leve acento de marca sobreposto */
.hero-bg--geral{
  background:
    radial-gradient(ellipse at 15% 20%, rgba(217,45,43,0.18), transparent 45%),
    linear-gradient(180deg, rgba(16,18,20,0.15), rgba(16,18,20,0.35)),
    url('assets/hero-geral.jpg') center 30% / cover no-repeat;
}
.hero-bg--produtos{
  background:
    radial-gradient(circle at 80% 30%, rgba(217,45,43,0.2), transparent 50%),
    linear-gradient(180deg, rgba(16,18,20,0.15), rgba(16,18,20,0.35)),
    url('assets/hero-produtos.jpg') center 35% / cover no-repeat;
}
.hero-bg--solucoes-campo{
  background:
    radial-gradient(ellipse at 70% 45%, rgba(217,45,43,0.16), transparent 50%),
    linear-gradient(180deg, rgba(16,18,20,0.15), rgba(16,18,20,0.35)),
    url('assets/hero-solucoes-campo.jpg') center 35% / cover no-repeat;
}
.hero-bg--transformadores-forca{
  background:
    radial-gradient(ellipse at 75% 45%, rgba(217,45,43,0.16), transparent 50%),
    linear-gradient(90deg, rgba(16,18,20,0.5), rgba(16,18,20,0.15) 55%),
    url('assets/hero-transformadores-forca.jpg') center 35% / cover no-repeat;
}
.hero-bg--transformadores-fornos{
  background:
    radial-gradient(ellipse at 75% 45%, rgba(217,45,43,0.16), transparent 50%),
    linear-gradient(90deg, rgba(16,18,20,0.6), rgba(16,18,20,0.15) 55%),
    url('assets/hero-transformadores-fornos.jpg') center 35% / cover no-repeat;
}
.hero-bg--transformadores-retificadores{
  background:
    radial-gradient(ellipse at 78% 40%, rgba(217,45,43,0.16), transparent 50%),
    linear-gradient(90deg, rgba(16,18,20,0.65), rgba(16,18,20,0.15) 55%),
    url('assets/hero-transformadores-retificadores.jpg') center 35% / cover no-repeat;
}
.hero-bg--a-densitel{
  background:
    radial-gradient(ellipse at 75% 40%, rgba(217,45,43,0.16), transparent 50%),
    linear-gradient(90deg, rgba(16,18,20,0.68), rgba(16,18,20,0.2) 55%),
    url('assets/solucoes-engenharia.jpg') center 35% / cover no-repeat;
}
.hero-bg--transformadores-filtro-eletrostatico{
  background:
    radial-gradient(ellipse at 75% 45%, rgba(217,45,43,0.16), transparent 50%),
    linear-gradient(90deg, rgba(16,18,20,0.65), rgba(16,18,20,0.15) 55%),
    url('assets/hero-transformadores-filtro-eletrostatico.jpg') center 35% / cover no-repeat;
}
.hero-bg--transformadores-moveis{
  background:
    radial-gradient(ellipse at 68% 35%, rgba(217,45,43,0.16), transparent 50%),
    linear-gradient(90deg, rgba(16,18,20,0.6), rgba(16,18,20,0.12) 55%),
    url('assets/hero-transformadores-moveis.jpg') center 40% / cover no-repeat;
}
.hero-bg--locacao{
  background:
    radial-gradient(ellipse at 68% 55%, rgba(217,45,43,0.18), transparent 50%),
    linear-gradient(180deg, rgba(16,18,20,0.15), rgba(16,18,20,0.35)),
    url('assets/hero-locacao.jpg') center 40% / cover no-repeat;
}
.hero-bg--locacao-page{
  background:
    radial-gradient(ellipse at 70% 45%, rgba(217,45,43,0.18), transparent 50%),
    linear-gradient(90deg, rgba(16,18,20,0.6), rgba(16,18,20,0.15) 55%),
    url('assets/hero-locacao-page.jpg') center 35% / cover no-repeat;
}
.hero-bg--solucoes-tecnicas{
  background:
    radial-gradient(ellipse at 80% 25%, rgba(217,45,43,0.18), transparent 50%),
    linear-gradient(180deg, rgba(16,18,20,0.18), rgba(16,18,20,0.4)),
    url('assets/hero-geral.jpg') center 25% / cover no-repeat;
}
.hero-overlay{
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(16,18,20,0.88) 0%, rgba(16,18,20,0.62) 32%, rgba(16,18,20,0.22) 60%, rgba(16,18,20,0.08) 100%),
    linear-gradient(0deg, rgba(16,18,20,0.8) 0%, rgba(16,18,20,0.25) 30%, rgba(16,18,20,0.2) 65%, rgba(16,18,20,0.55) 100%);
}
.hero-content{
  position: relative;
  z-index: 2;
  max-width: 620px;
  margin: 0;
  padding: 200px clamp(24px, 6vw, 80px) 140px;
  text-align: left;
}
.eyebrow{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--vermelho);
  margin-bottom: 18px;
}
.hero-content h1, .hero-content h2{
  color: var(--branco);
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  margin-bottom: 20px;
}
.hero-content p{
  color: var(--cinza-metalico);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-actions{ display: flex; gap: 16px; flex-wrap: wrap; }


.hero-controls{
  position: absolute;
  bottom: 28px; left: 0; right: 0;
  z-index: 3;
  display: flex; align-items: center; justify-content: center;
  gap: 24px;
}
.hero-arrow{
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--branco);
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.hero-arrow:hover{ background: var(--vermelho); border-color: var(--vermelho); }
.hero-dots{ display: flex; gap: 10px; }
.hero-dot{
  width: 30px; height: 3px; border: none; background: rgba(255,255,255,0.28); border-radius: 2px;
  transition: background var(--transition-fast);
}
.hero-dot.is-active{ background: var(--vermelho); }

/* --------------------------------------------------------------------------
   6. FAIXA DE AUTORIDADE
   -------------------------------------------------------------------------- */
.authority{ background: var(--grafite-tecnico); border-bottom: 1px solid var(--cinza-chumbo); }
.authority-inner{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}
.authority-item{
  text-align: center;
  padding: 0 12px;
  border-left: 1px solid var(--cinza-chumbo);
  display: flex; flex-direction: column; gap: 4px;
}
.authority-item:first-child{ border-left: none; }
.authority-value{ font-family: var(--font-mono); font-weight: 600; color: var(--branco); font-size: 1.15rem; }
.authority-label{ font-size: 0.76rem; color: var(--cinza-metalico); text-transform: uppercase; letter-spacing: 0.03em; }

/* --------------------------------------------------------------------------
   6.1 FAIXA DE INDICADORES (light) — números institucionais
   -------------------------------------------------------------------------- */
.stats-strip{
  background: var(--off-white);
  border-top: 1px solid var(--cinza-claro);
  border-bottom: 1px solid var(--cinza-claro);
}
.stats-inner{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(36px, 5vw, 56px) 24px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}
.stat-item{
  text-align: center;
  padding: 0 20px;
  border-left: 1px solid var(--cinza-claro);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.stat-item:first-child{ border-left: none; }
.stat-number{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 2.4vw, 2.15rem);
  color: var(--vermelho);
  line-height: 1;
}
.stat-label{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--preto-industrial);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.stat-desc{
  font-size: 0.82rem;
  color: var(--cinza-chumbo);
  max-width: 210px;
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   7. SEÇÕES — ESTRUTURA GERAL
   -------------------------------------------------------------------------- */
.section{ padding: var(--gap-section) 0; }
.section--light{ background: var(--off-white); }
.section--dark{ background: var(--preto-industrial); color: var(--cinza-metalico); }
.section-inner{ max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section-inner--center{ text-align: center; max-width: 760px; }
.section-inner--split{ display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--gap-inner); align-items: start; }

.section-head{ max-width: 680px; margin-bottom: 48px; }
.section-eyebrow{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--vermelho);
  margin-bottom: 14px;
}
.section-head h2, .section--dark h2, .section--certification h2{ font-size: clamp(1.6rem, 2.6vw, 2.25rem); color: var(--preto-industrial); margin-bottom: 14px; }
.section--dark h2{ color: var(--branco); }
.section-head p{ color: var(--cinza-chumbo); font-size: 1.02rem; max-width: 640px; }
.section--dark .section-head p, .section--dark p{ color: var(--cinza-metalico); }
.section-head--dark h2{ color: var(--branco); }

/* --------------------------------------------------------------------------
   8. CARDS / GRIDS
   -------------------------------------------------------------------------- */
.card-grid{ display: grid; gap: 20px; grid-template-columns: repeat(4, 1fr); }
.card-grid--2{ grid-template-columns: repeat(2, 1fr); }
.card-grid--3{ grid-template-columns: repeat(3, 1fr); }
.card-grid--6{ grid-template-columns: repeat(3, 1fr); }
.card-grid--7{ grid-template-columns: repeat(4, 1fr); }

.card{
  background: var(--branco);
  border: 1px solid var(--cinza-claro);
  border-radius: 8px;
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow-card);
  border-top: 3px solid transparent;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}
.card:hover{ transform: translateY(-4px); border-top-color: var(--vermelho); }
.card-icon{ color: var(--vermelho); width: 30px; height: 30px; margin-bottom: 4px; }
.card-icon svg{ width: 100%; height: 100%; }
.card h3{ font-size: 1.02rem; color: var(--preto-industrial); }
.card p{ font-size: 0.9rem; color: var(--cinza-chumbo); flex-grow: 1; }
.card-link{ font-size: 0.85rem; font-weight: 700; color: var(--vermelho); margin-top: 6px; }
.card-tag{
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--vermelho-escuro);
  background: rgba(217,45,43,0.08);
  padding: 4px 8px;
  border-radius: 3px;
  align-self: flex-start;
}
.card--compact{ padding: 22px 20px; box-shadow: none; border: 1px solid var(--cinza-claro); }

.card--dark{
  background: var(--grafite-tecnico);
  border: 1px solid var(--cinza-chumbo);
  box-shadow: none;
}
.card--dark h3{ color: var(--branco); }
.card--dark p{ color: var(--cinza-metalico); }
.card--dark:hover{ border-top-color: var(--vermelho); border-left-color: var(--cinza-chumbo); }

/* --------------------------------------------------------------------------
   9. SEÇÕES DIVIDIDAS (split) — locação / laboratório
   -------------------------------------------------------------------------- */
.section--split{
  display: grid;
  grid-template-columns: 44% 56%;
}
.split-media{
  position: relative;
  background: var(--off-white);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(32px, 5vw, 56px);
}
.locacao-frame{
  width: min(420px, 100%);
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  border: 1px solid var(--cinza-claro);
  background: var(--off-white);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-med), box-shadow var(--transition-med);
}
.locacao-frame:hover{
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -16px rgba(16,18,20,0.25);
}
.locacao-frame__img{
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
}
.split-content{
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
  padding: 64px clamp(24px, 6vw, 96px);
  background: var(--off-white);
}
.split-content h2{ color: var(--preto-industrial); font-size: clamp(1.5rem, 2.4vw, 2rem); }
.split-content p{ color: var(--cinza-chumbo); max-width: 520px; margin-bottom: 8px; }
.split-content .btn{ width: fit-content; }

/* Laboratório (dark split within a .section--dark) */
.lab-content{ display: flex; flex-direction: column; gap: 18px; }
.lab-content p{ max-width: 540px; }
.lab-highlight{
  border-left: 3px solid var(--vermelho);
  padding: 4px 0 4px 16px;
  font-weight: 600;
  color: var(--branco) !important;
  max-width: 540px;
}
.technical-gallery-frame{
  position: relative;
  padding: 8px;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(255,255,255,0.06), rgba(255,255,255,0.015));
  box-shadow:
    0 22px 50px rgba(0,0,0,0.28),
    inset 0 1px 0 rgba(255,255,255,0.06);
  overflow: hidden;
  transition: border-color var(--transition-med), box-shadow var(--transition-med), transform var(--transition-med);
}
.technical-gallery-frame::before{
  content: "";
  position: absolute;
  top: 0; left: 28px;
  width: 70px; height: 2px;
  background: var(--vermelho);
  border-radius: 0 0 2px 2px;
  z-index: 2;
}
.technical-gallery{
  display: grid;
  gap: 3px;
  overflow: hidden;
  border-radius: 9px;
}
.technical-image{
  margin: 0;
  aspect-ratio: 3 / 2;
  background: var(--grafite-tecnico);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.technical-image img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  background: var(--grafite-tecnico);
  transition: transform 0.35s ease, filter 0.35s ease;
}
.technical-gallery-frame:hover{
  border-color: rgba(217,45,43,0.45);
  box-shadow:
    0 26px 60px rgba(0,0,0,0.35),
    0 0 0 1px rgba(217,45,43,0.06);
  transform: translateY(-4px);
}
.technical-gallery-frame:hover img{
  filter: brightness(1.03) contrast(1.02);
}
.check-list{ display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }
.check-list li{
  position: relative;
  padding-left: 26px;
  color: var(--cinza-metalico);
  font-size: 0.96rem;
}
.check-list li::before{
  content: "";
  position: absolute; left: 0; top: 4px;
  width: 16px; height: 16px;
  border: 1.5px solid var(--vermelho);
  border-radius: 3px;
  background: rgba(217,45,43,0.08);
}
.check-list li::after{
  content: "";
  position: absolute; left: 4px; top: 7px;
  width: 8px; height: 4px;
  border-left: 1.5px solid var(--vermelho);
  border-bottom: 1.5px solid var(--vermelho);
  transform: rotate(-45deg);
}

/* --------------------------------------------------------------------------
   10. CLIENTES / SEGMENTOS
   -------------------------------------------------------------------------- */
.segment-tags{ display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 48px; }
.segment-tags span{
  font-size: 0.85rem;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--branco);
  border: 1px solid var(--cinza-claro);
  color: var(--grafite-tecnico);
}
.logo-carousel{
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  background: var(--off-white);
  border-radius: 8px;
  padding: 6px 0;
}
.logo-track{
  display: flex;
  align-items: center;
  width: max-content;
  gap: 16px;
  animation: logo-marquee 34s linear infinite;
}
.logo-carousel:hover .logo-track{ animation-play-state: paused; }
@keyframes logo-marquee{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}
.logo-slot{
  height: 84px;
  width: 168px;
  flex: 0 0 auto;
  border: 1px solid var(--cinza-claro);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  background: var(--branco);
  padding: 14px 18px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.logo-slot:hover{ border-color: var(--vermelho); box-shadow: var(--shadow-card); }
.logo-slot img{
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(1) opacity(0.65);
  transition: filter var(--transition-fast);
}
.logo-slot:hover img{ filter: grayscale(0) opacity(1); }

/* --------------------------------------------------------------------------
   11. CERTIFICAÇÃO
   -------------------------------------------------------------------------- */
.section--certification{ text-align: center; }
.section--certification .section-inner--center{ margin: 0 auto; display: flex; flex-direction: column; align-items: center; }
.cert-badge{
  margin-top: 28px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--cinza-chumbo);
  border-radius: 8px;
  padding: 20px 40px;
  background: var(--grafite-tecnico);
}
.cert-badge-code{ font-family: var(--font-mono); font-weight: 600; color: var(--branco); font-size: 1.1rem; }
.cert-badge-issuer{ font-size: 0.8rem; color: var(--cinza-metalico); }

/* --------------------------------------------------------------------------
   12. CONTATO / FORMULÁRIO
   -------------------------------------------------------------------------- */
.contact-intro{ display: flex; flex-direction: column; gap: 14px; }
.contact-info{ display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.contact-info div{ display: flex; flex-direction: column; gap: 2px; }
.contact-info strong{ color: var(--branco); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.03em; }
.contact-info span{ color: var(--cinza-metalico); font-size: 0.95rem; }

.tech-form{
  background: var(--grafite-tecnico);
  border: 1px solid var(--cinza-chumbo);
  border-radius: 10px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row{ display: flex; flex-direction: column; gap: 6px; }
.form-row--half{ display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row--half > div{ display: flex; flex-direction: column; gap: 6px; }
.tech-form label{ font-size: 0.82rem; color: var(--cinza-metalico); font-weight: 600; }
.tech-form input, .tech-form select, .tech-form textarea{
  background: var(--preto-industrial);
  border: 1px solid var(--cinza-chumbo);
  border-radius: 5px;
  padding: 12px 14px;
  color: var(--branco);
  font-family: var(--font-body);
  font-size: 0.92rem;
  transition: border-color var(--transition-fast);
}
.tech-form input:focus, .tech-form select:focus, .tech-form textarea:focus{
  border-color: var(--vermelho);
  outline: none;
}
.tech-form textarea{ resize: vertical; }
.form-feedback{ font-size: 0.85rem; color: var(--vermelho); min-height: 18px; }
.form-feedback.is-success{ color: #6FCF97; }

/* --------------------------------------------------------------------------
   13. FOOTER
   -------------------------------------------------------------------------- */
.site-footer{ background: var(--preto-industrial); color: var(--cinza-metalico); border-top: 1px solid var(--cinza-chumbo); }
.footer-inner{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 64px 24px 40px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer-logo{ height: 30px; margin-bottom: 14px; }
.footer-brand p{ font-size: 0.88rem; max-width: 260px; color: var(--cinza-metalico); }
.footer-col{ display: flex; flex-direction: column; gap: 10px; }
.footer-col h3{ font-family: var(--font-mono); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--branco); margin-bottom: 6px; }
.footer-col a, .footer-col span{ font-size: 0.88rem; color: var(--cinza-metalico); }
.footer-col a:hover{ color: var(--vermelho); }

.footer-bottom{
  border-top: 1px solid var(--cinza-chumbo);
  padding: 20px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--cinza-metalico);
}
.footer-legal{ display: flex; gap: 16px; }
.footer-legal a:hover{ color: var(--vermelho); }

/* --------------------------------------------------------------------------
   14. SCROLL REVEAL
   -------------------------------------------------------------------------- */
.reveal{ opacity: 0; transform: translateY(18px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

/* --------------------------------------------------------------------------
   15. RESPONSIVO
   -------------------------------------------------------------------------- */
@media (max-width: 1180px){
  .header-inner{ gap: 10px; padding: 10px 16px; }
  .main-nav > ul > li > a{ padding: 10px 6px; font-size: 0.74rem; }
  .btn-header{ padding: 9px 14px; font-size: 0.76rem; }
}

@media (max-width: 1080px){
  .card-grid, .card-grid--7{ grid-template-columns: repeat(3, 1fr); }
  .authority-inner{ grid-template-columns: repeat(3, 1fr); row-gap: 24px; }
  .authority-item:nth-child(4){ border-left: none; }
  .stats-inner{ grid-template-columns: repeat(3, 1fr); row-gap: 28px; }
  .stat-item:nth-child(4){ border-left: none; }
  .footer-inner{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px){
  .main-nav{
    position: fixed;
    top: 62px; left: 0; right: 0; bottom: 0;
    z-index: 100;
    background: var(--preto-industrial);
    padding: 20px;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-med);
  }
  .main-nav.is-open{ transform: translateX(0); }
  .main-nav ul{ flex-direction: column; align-items: stretch; gap: 2px; }
  .main-nav > ul > li > a{ padding: 14px 8px; border-bottom: 1px solid var(--cinza-chumbo); }
  .has-dropdown .dropdown{
    position: static; opacity: 1; visibility: visible; transform: none;
    display: none; border: none; background: rgba(255,255,255,0.03);
    box-shadow: none; margin-bottom: 6px;
  }
  .has-dropdown.is-open .dropdown{ display: flex; }
  .nav-toggle{ display: flex; }
  .btn-header{ display: none; }

  .section-inner--split, .lab-content ~ .technical-gallery-frame, #laboratorio .section-inner{ grid-template-columns: 1fr; }
  .section--split{ grid-template-columns: 1fr; }
  .split-media{ padding: 32px 24px; }
  .card-grid, .card-grid--3, .card-grid--6, .card-grid--7{ grid-template-columns: repeat(2, 1fr); }
  .card-grid--2{ grid-template-columns: repeat(2, 1fr); }
  .footer-inner{ grid-template-columns: 1fr; }
  .form-row--half{ grid-template-columns: 1fr; }
}

@media (max-width: 560px){
  .card-grid, .card-grid--2, .card-grid--3, .card-grid--6, .card-grid--7{ grid-template-columns: 1fr; }
  .authority-inner{ grid-template-columns: repeat(2, 1fr); }
  .authority-item:nth-child(odd){ border-left: none; }
  .stats-inner{ grid-template-columns: repeat(2, 1fr); row-gap: 24px; }
  .stat-item:nth-child(odd){ border-left: none; }
  .hero-content{ padding: 150px 20px 120px; }
  .logo-slot{ height: 68px; width: 130px; padding: 10px 14px; }
  .split-media{ padding: 24px; }
}

/* --------------------------------------------------------------------------
   16. CORREÇÃO DE OVERFLOW GERAL (evita corte do formulário no mobile)
   -------------------------------------------------------------------------- */
html, body{ overflow-x: hidden; max-width: 100%; }
.section-inner--split > *{ min-width: 0; }
.tech-form{ width: 100%; box-sizing: border-box; }
.tech-form input, .tech-form select, .tech-form textarea{ width: 100%; box-sizing: border-box; }

@media (max-width: 860px){
  #contato .section-inner--split{ grid-template-columns: 1fr; }
  .tech-form{ padding: 22px; }
}

/* --------------------------------------------------------------------------
   17. BOTÃO FLUTUANTE WHATSAPP
   -------------------------------------------------------------------------- */
.whatsapp-float{
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #1EBE57;
  color: #FFFFFF;
  border-radius: 999px;
  padding: 14px;
  box-shadow: 0 10px 24px -8px rgba(16,18,20,0.45);
  text-decoration: none;
  overflow: hidden;
  max-width: 56px;
  transition: max-width 320ms ease, background var(--transition-fast), box-shadow var(--transition-fast);
  animation: whatsapp-pop 600ms ease-out 400ms both, whatsapp-pulse 2.6s ease-in-out 1.2s 2;
}
.whatsapp-float:hover{
  max-width: 260px;
  background: #17A34A;
  box-shadow: 0 14px 30px -8px rgba(16,18,20,0.55);
}
.whatsapp-icon{
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.whatsapp-label{
  white-space: nowrap;
  font-size: 0.86rem;
  font-weight: 700;
  padding-right: 6px;
}
@keyframes whatsapp-pop{
  from{ transform: scale(0.4); opacity: 0; }
  to{ transform: scale(1); opacity: 1; }
}
@keyframes whatsapp-pulse{
  0%, 100%{ box-shadow: 0 10px 24px -8px rgba(16,18,20,0.45), 0 0 0 0 rgba(30,190,87,0.5); }
  50%{ box-shadow: 0 10px 24px -8px rgba(16,18,20,0.45), 0 0 0 10px rgba(30,190,87,0); }
}

@media (max-width: 640px){
  .whatsapp-float{ right: 14px; bottom: 14px; }
  .whatsapp-float:hover{ max-width: 56px; }
  .whatsapp-label{ display: none; }
}

/* --------------------------------------------------------------------------
   17. PÁGINAS INTERNAS DE SOLUÇÃO (ex.: VAP) — componentes reutilizáveis
   -------------------------------------------------------------------------- */

/* Hero estático de página interna (sem carrossel) */
.page-hero{
  position: relative;
  min-height: clamp(480px, 62vh, 680px);
  overflow: hidden;
  background: var(--preto-industrial);
  display: flex;
  align-items: center;
}
.hero-bg--vap{
  background:
    radial-gradient(ellipse at 72% 60%, rgba(217,45,43,0.16), transparent 50%),
    linear-gradient(180deg, rgba(16,18,20,0.15), rgba(16,18,20,0.35)),
    url('assets/hero-vap.jpg') center 40% / cover no-repeat;
}
.hero-content--page{ padding: 120px clamp(24px, 6vw, 80px) 72px; }
.hero-content--page p + p{ margin-top: -18px; }

/* Citação / frase de destaque reutilizável (funciona em seção clara ou escura) */
.pull-quote{
  border-left: 3px solid var(--vermelho);
  padding: 4px 0 4px 16px;
  font-weight: 600;
  max-width: 640px;
  color: var(--preto-industrial);
}
.section--dark .pull-quote{ color: var(--branco); }

/* Lista de verificação em seção clara (o padrão original foi criado para fundo escuro) */
.section--light .check-list li{ color: var(--cinza-chumbo); }

/* Nota técnica complementar, discreta */
.tech-note{
  font-size: 0.85rem;
  font-style: italic;
  color: var(--cinza-chumbo);
  max-width: 640px;
  margin-top: 12px;
}
.section--dark .tech-note{ color: var(--cinza-metalico); }
.tech-note--tag{
  font-style: normal;
  font-weight: 700;
  color: var(--preto-industrial);
  margin-top: 16px;
}
.section--dark .tech-note--tag{ color: var(--branco); }

/* Tabela técnica (modelos / especificações) */
.spec-table-wrap{
  overflow-x: auto;
  border: 1px solid var(--cinza-claro);
  border-radius: 10px;
  margin: 28px 0 12px;
}
.spec-table{ width: 100%; border-collapse: collapse; font-size: 0.94rem; min-width: 420px; }
.spec-table th, .spec-table td{ padding: 14px 20px; text-align: left; border-bottom: 1px solid var(--cinza-claro); }
.spec-table thead th{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--preto-industrial);
  background: var(--cinza-claro);
}
.spec-table td{ color: var(--cinza-chumbo); }
.spec-table td:first-child{ font-weight: 700; color: var(--preto-industrial); font-family: var(--font-mono); }
.spec-table tbody tr:last-child td{ border-bottom: none; }

/* Bloco visual técnico (imagem em vista explodida) */
.vap-visual-content{ display: flex; flex-direction: column; justify-content: center; gap: 16px; }
.vap-visual-content p{ max-width: 520px; color: var(--cinza-chumbo); }
.vap-visual-frame{
  width: min(360px, 100%);
  aspect-ratio: 3 / 4;
  margin: 0 auto;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--cinza-claro);
  background: var(--branco);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-med), box-shadow var(--transition-med);
}
.vap-visual-frame:hover{ transform: translateY(-3px); box-shadow: 0 18px 40px -16px rgba(16,18,20,0.25); }
.vap-visual-frame__img{ width: 100%; height: 100%; object-fit: contain; object-position: center; display: block; }

@media (max-width: 860px){
  .hero-content--page{ padding: 96px 24px 56px; }
  .hero-bg--vap{
    background:
      linear-gradient(180deg, rgba(16,18,20,0.15), rgba(16,18,20,0.4)),
      url('assets/hero-vap-mobile.jpg') center 30% / cover no-repeat;
  }
}

@media (min-width: 861px){
  .nowrap-desktop{ white-space: nowrap; }
}

/* --------------------------------------------------------------------------
   18. ETAPAS NUMERADAS (ex.: "como funciona o processo")
   -------------------------------------------------------------------------- */
.process-steps{
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.process-steps li{ display: flex; gap: 20px; align-items: flex-start; }
.process-steps__num{
  flex: 0 0 auto;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--vermelho);
  color: var(--vermelho);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.02rem;
  display: flex; align-items: center; justify-content: center;
}
.process-steps li h3{ font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; margin-bottom: 4px; color: var(--preto-industrial); }
.process-steps li p{ color: var(--cinza-chumbo); max-width: 580px; }
.section--dark .process-steps li h3{ color: var(--branco); }
.section--dark .process-steps li p{ color: var(--cinza-metalico); }

/* --------------------------------------------------------------------------
   19. FORMULÁRIO TÉCNICO — GRUPOS (fieldset/legend) E TEXTO DE APOIO
   -------------------------------------------------------------------------- */
.tech-form fieldset{ border: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 18px; }
.tech-form legend{
  width: 100%;
  padding: 0 0 8px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--cinza-chumbo);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  color: var(--branco);
  text-transform: uppercase;
}
.form-hint{ font-size: 0.8rem; color: var(--cinza-metalico); margin-top: -10px; }
.form-wrap{ max-width: 860px; }
.form-wrap .section-head{ max-width: 720px; }

/* --------------------------------------------------------------------------
   20. FOTO COM MOLDURA PREMIUM (blocos de texto + foto nas páginas internas)
   -------------------------------------------------------------------------- */
.white-frame{
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.14);
  box-shadow: 0 16px 40px -18px rgba(0,0,0,0.4);
  background: var(--grafite-tecnico);
}
.section--light .white-frame{
  border: 1px solid var(--cinza-claro);
  box-shadow: var(--shadow-card);
  background: var(--branco);
}
.white-frame__img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
.split-with-photo{
  display: grid;
  grid-template-columns: 1fr minmax(420px, 480px);
  gap: 60px;
  align-items: center;
}
.split-with-photo--img-first{
  grid-template-columns: minmax(420px, 480px) 1fr;
}
.split-text{
  display: flex;
  flex-direction: column;
  gap: 28px;
  min-width: 0;
}
.split-text .section-head{ margin-bottom: 0; }
.split-text .check-list{ margin-top: 0; }
.split-text .btn{ align-self: flex-start; margin-top: 0 !important; }
.split-with-photo .white-frame{ min-width: 0; align-self: center; }

@media (max-width: 860px){
  .split-with-photo, .split-with-photo--img-first{
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .white-frame{ max-width: 100%; }
}

/* --------------------------------------------------------------------------
   21. FAIXA PARALLAX (pausa visual entre blocos de conteúdo)
   -------------------------------------------------------------------------- */
.parallax-break{
  position: relative;
  height: clamp(420px, 42vw, 560px);
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.parallax-break::before{
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16,18,20,0.55), rgba(16,18,20,0.7));
}
.parallax-break__content{
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  padding: 0 24px;
}
.parallax-break__content .section-eyebrow{ color: var(--vermelho); }
.parallax-break__content p{
  color: var(--branco);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  line-height: 1.4;
  margin-top: 12px;
}

@media (max-width: 860px){
  .parallax-break{
    background-attachment: scroll;
    height: clamp(320px, 60vw, 420px);
  }
}
.parallax-break--vap-1{ background-image: url('assets/vap-parallax-1.jpg'); }
.parallax-break--vap-2{ background-image: url('assets/vap-parallax-2.jpg'); }
.parallax-break--solucoes-campo-1{ background-image: url('assets/solucoes-campo-parallax-1.jpg'); }
.parallax-break--transformadores-forca-1{ background-image: url('assets/transformadores-forca-parallax-1.jpg'); }
.parallax-break--transformadores-fornos-1{ background-image: url('assets/transformadores-fornos-parallax-1.jpg'); }
.parallax-break--transformadores-moveis-1{ background-image: url('assets/transformadores-moveis-parallax-1.jpg'); }

/* --------------------------------------------------------------------------
   22. PÁGINAS LEGAIS (Política de Privacidade / Termos de Uso)
   -------------------------------------------------------------------------- */
.legal-hero{
  background: var(--off-white);
  padding: clamp(140px, 18vw, 180px) 24px 48px;
}
.legal-hero__inner{ max-width: 780px; margin: 0 auto; }
.legal-hero .section-eyebrow{ margin-bottom: 12px; }
.legal-hero h1{
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  color: var(--preto-industrial);
  margin-bottom: 10px;
}
.legal-updated{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--cinza-chumbo);
}
.legal-content{
  background: var(--off-white);
  padding: 0 24px clamp(64px, 9vw, 110px);
}
.legal-content__inner{ max-width: 780px; margin: 0 auto; }
.legal-content h2{
  font-size: 1.25rem;
  color: var(--preto-industrial);
  margin: 44px 0 14px;
  padding-top: 20px;
  border-top: 1px solid var(--cinza-claro);
}
.legal-content h2:first-child{ margin-top: 0; padding-top: 0; border-top: none; }
.legal-content p{
  color: var(--cinza-chumbo);
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 14px;
}
.legal-content ul{
  margin: 0 0 14px;
  padding-left: 20px;
  color: var(--cinza-chumbo);
  font-size: 0.98rem;
  line-height: 1.7;
}
.legal-content li{ margin-bottom: 6px; }
.legal-content strong{ color: var(--preto-industrial); }
.legal-card{
  background: var(--branco);
  border: 1px solid var(--cinza-claro);
  border-radius: 10px;
  padding: 20px 24px;
  margin: 18px 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--cinza-chumbo);
}
.legal-card strong{ color: var(--preto-industrial); }
.legal-crosslink{
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--cinza-claro);
  font-size: 0.9rem;
  color: var(--cinza-chumbo);
}
.legal-crosslink a{ color: var(--vermelho); font-weight: 700; }

/* --------------------------------------------------------------------------
   23. BANNER DE COOKIES
   -------------------------------------------------------------------------- */
.cookie-banner{
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 900;
  background: var(--preto-industrial);
  border-top: 1px solid var(--cinza-chumbo);
  padding: 18px 24px;
  display: none;
  box-shadow: 0 -12px 32px rgba(0,0,0,0.3);
}
.cookie-banner.is-visible{ display: block; }
.cookie-banner__inner{
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.cookie-banner p{
  flex: 1 1 380px;
  color: var(--cinza-metalico);
  font-size: 0.86rem;
  line-height: 1.5;
  margin: 0;
}
.cookie-banner p a{ color: var(--vermelho); font-weight: 700; }
.cookie-banner__actions{ display: flex; gap: 10px; flex-wrap: wrap; flex: 0 0 auto; }
.cookie-banner__actions .btn{ padding: 10px 18px; font-size: 0.86rem; }

.cookie-modal{
  position: fixed;
  inset: 0;
  z-index: 950;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(16,18,20,0.65);
  padding: 24px;
}
.cookie-modal.is-visible{ display: flex; }
.cookie-modal__box{
  background: var(--branco);
  border-radius: 12px;
  max-width: 480px;
  width: 100%;
  padding: 28px;
  box-shadow: 0 30px 70px rgba(0,0,0,0.35);
}
.cookie-modal__box h3{
  font-size: 1.15rem;
  color: var(--preto-industrial);
  margin-bottom: 8px;
}
.cookie-modal__box > p{
  color: var(--cinza-chumbo);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 20px;
}
.cookie-pref{
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--cinza-claro);
}
.cookie-pref:first-of-type{ border-top: none; }
.cookie-pref__label{ font-weight: 700; color: var(--preto-industrial); font-size: 0.92rem; }
.cookie-pref__desc{ color: var(--cinza-chumbo); font-size: 0.82rem; margin-top: 2px; }
.cookie-pref__switch{
  flex: 0 0 auto;
  width: 42px; height: 24px;
  border-radius: 999px;
  background: var(--cinza-claro);
  border: none;
  position: relative;
  cursor: pointer;
}
.cookie-pref__switch::after{
  content: "";
  position: absolute;
  top: 3px; left: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--branco);
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  transition: transform var(--transition-med);
}
.cookie-pref__switch.is-on{ background: var(--vermelho); }
.cookie-pref__switch.is-on::after{ transform: translateX(18px); }
.cookie-pref__switch:disabled{ opacity: 0.6; cursor: not-allowed; }
.cookie-modal__actions{
  display: flex;
  gap: 10px;
  margin-top: 22px;
  flex-wrap: wrap;
}

@media (max-width: 640px){
  .cookie-banner__inner{ flex-direction: column; align-items: stretch; }
  .cookie-banner__actions{ justify-content: stretch; }
  .cookie-banner__actions .btn{ flex: 1 1 auto; text-align: center; }
}

/* --------------------------------------------------------------------------
   24. BLOG TÉCNICO — LISTAGEM
   -------------------------------------------------------------------------- */
.blog-filters{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}
.blog-filter{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--cinza-chumbo);
  background: var(--branco);
  border: 1px solid var(--cinza-claro);
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  transition: border-color var(--transition-med), color var(--transition-med);
}
.blog-filter:hover,
.blog-filter.is-active{
  border-color: var(--vermelho);
  color: var(--vermelho);
}
.blog-card-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.blog-card{
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--branco);
  border: 1px solid var(--cinza-claro);
  border-radius: 10px;
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-med), box-shadow var(--transition-med);
}
.blog-card:hover{ transform: translateY(-4px); box-shadow: 0 20px 40px -20px rgba(16,18,20,0.3); }
.blog-card h3{ font-size: 1.05rem; color: var(--preto-industrial); line-height: 1.3; }
.blog-card p{ color: var(--cinza-chumbo); font-size: 0.92rem; line-height: 1.55; flex: 1; }
.blog-card .card-link{ margin-top: 4px; }

@media (max-width: 1080px){
  .blog-card-grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px){
  .blog-card-grid{ grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   25. BLOG TÉCNICO — TEMPLATE DE ARTIGO
   -------------------------------------------------------------------------- */
.article-hero{
  background: var(--off-white);
  padding: clamp(130px, 16vw, 168px) 24px 0;
}
.article-hero__inner{ max-width: 860px; margin: 0 auto; }
.article-meta{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cinza-chumbo);
}
.article-meta span + span::before{ content: "•"; margin-right: 14px; color: var(--cinza-claro); }
.article-hero h1{
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  color: var(--preto-industrial);
  margin: 6px 0 14px;
}
.article-hero .article-subtitle{
  font-size: 1.05rem;
  color: var(--cinza-chumbo);
  max-width: 720px;
  line-height: 1.55;
}
.article-hero-image{
  max-width: 1040px;
  margin: 36px auto 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--cinza-claro);
  box-shadow: var(--shadow-card);
  aspect-ratio: 16 / 9;
}
.article-hero-image img{ width: 100%; height: 100%; object-fit: cover; display: block; }

.article-layout{
  background: var(--off-white);
  padding: 48px 24px clamp(64px, 9vw, 110px);
}
.article-layout__inner{
  max-width: 1160px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 56px;
  align-items: start;
}
.article-body{ max-width: 800px; }
.article-body h2{
  font-size: 1.3rem;
  color: var(--preto-industrial);
  margin: 40px 0 14px;
}
.article-body h2:first-child{ margin-top: 0; }
.article-body p{
  color: var(--cinza-chumbo);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 16px;
}
.article-body ul{
  margin: 0 0 16px;
  padding-left: 20px;
  color: var(--cinza-chumbo);
  font-size: 1rem;
  line-height: 1.75;
}
.article-body li{ margin-bottom: 6px; }
.article-body a:not(.btn){ color: var(--vermelho); font-weight: 700; }

.article-highlight{
  border-left: 3px solid var(--vermelho);
  background: var(--branco);
  border-radius: 0 8px 8px 0;
  padding: 18px 22px;
  margin: 28px 0;
  font-weight: 700;
  color: var(--preto-industrial);
  font-size: 1.02rem;
  line-height: 1.5;
}

.article-criteria{
  background: var(--branco);
  border: 1px solid var(--cinza-claro);
  border-radius: 10px;
  padding: 24px 26px;
  margin: 28px 0;
}
.article-criteria h3{
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--preto-industrial);
  margin-bottom: 12px;
}
.article-criteria ul{ margin: 0; padding-left: 0; list-style: none; }
.article-criteria li{
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
  font-size: 0.94rem;
}
.article-criteria li::before{
  content: "";
  position: absolute; left: 0; top: 7px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--vermelho);
}

.article-cta-inline{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  background: var(--grafite-tecnico);
  border-radius: 10px;
  padding: 22px 26px;
  margin: 32px 0;
}
.article-cta-inline p{ color: var(--branco); font-weight: 700; margin: 0; font-size: 0.98rem; }
.article-cta-inline .btn{ flex: 0 0 auto; }
.article-cta-inline .btn-primary,
.article-sidebar .btn-primary{ color: var(--branco); }

.article-sidebar{
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.article-sidebar-block{
  background: var(--branco);
  border: 1px solid var(--cinza-claro);
  border-radius: 10px;
  padding: 20px 22px;
}
.article-sidebar-block h3{
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--vermelho);
  margin-bottom: 12px;
}
.article-toc{ list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.article-toc a{
  font-size: 0.88rem;
  color: var(--cinza-chumbo);
  line-height: 1.4;
  display: block;
}
.article-toc a:hover{ color: var(--vermelho); }
.article-related{ list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.article-related a{
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--preto-industrial);
  line-height: 1.4;
  display: block;
}
.article-related a:hover{ color: var(--vermelho); }
.article-sidebar .btn{ width: 100%; text-align: center; justify-content: center; }

@media (max-width: 960px){
  .article-layout__inner{ grid-template-columns: 1fr; }
  .article-sidebar{ position: static; order: 3; }
}

/* --------------------------------------------------------------------------
   26. PÁGINA "A DENSITEL" — FOTO DE FUNDADOR E SLIDESHOW DA FÁBRICA
   -------------------------------------------------------------------------- */
.founder-photo{
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.14);
  margin-bottom: 18px;
}
.founder-photo img{ width: 100%; height: 100%; object-fit: cover; display: block; }
.founder-photo-hero{
  width: min(480px, 100%);
  aspect-ratio: 3 / 2;
  margin: 0 auto 40px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.14);
  box-shadow: 0 22px 50px rgba(0,0,0,0.35);
}
.founder-photo-hero img{ width: 100%; height: 100%; object-fit: cover; display: block; }

.ad-slideshow{
  position: relative;
  max-width: 860px;
  margin: 40px auto 0;
  display: flex;
  align-items: center;
  gap: 20px;
}
.ad-slideshow__frame{
  flex: 1;
  aspect-ratio: 3 / 2;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--cinza-claro);
  box-shadow: var(--shadow-card);
  background: var(--branco);
}
.ad-slideshow__img{ width: 100%; height: 100%; object-fit: cover; display: block; transition: opacity 0.25s ease; }
.ad-slideshow__arrow{
  flex: 0 0 auto;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--cinza-claro);
  background: var(--branco);
  color: var(--vermelho);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-med), background var(--transition-med);
}
.ad-slideshow__arrow:hover{ border-color: var(--vermelho); background: rgba(217,45,43,0.06); }
.ad-slideshow__dots{ display: flex; justify-content: center; gap: 8px; margin-top: 20px; }
.ad-slideshow__dot{
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--cinza-claro);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: width var(--transition-fast), background var(--transition-fast);
}
.ad-slideshow__dot.is-active{ background: var(--vermelho); width: 22px; border-radius: 4px; }

@media (max-width: 640px){
  .ad-slideshow{ max-width: 100%; }
  .ad-slideshow__arrow{ position: absolute; top: 50%; transform: translateY(-50%); z-index: 2; }
  .ad-slideshow__arrow--prev{ left: 4px; }
  .ad-slideshow__arrow--next{ right: 4px; }
}