/* =========================================================
   BETIM POLÍMEROS — Landing Page
   Paleta extraída da identidade visual da marca:
   Azul-petróleo muito escuro, verde/azul petróleo, azul profundo,
   azul acinzentado, branco, off-white, cinzas claros.
   ========================================================= */

:root {
  --petrol-950: #08181d;
  --petrol-900: #0c2027;
  --petrol-800: #12303a;
  --petrol-700: #1a4450;
  --petrol-600: #235a68;
  --petrol-500: #2f7686;
  --teal-accent: #1c5f6e;
  --blue-deep: #103a4a;
  --grey-blue: #5c7480;
  --off-white: #f6f8f8;
  --light-grey: #eef1f2;
  --white: #ffffff;
  --text-dark: #10222a;
  --text-muted: #57707a;
  --whatsapp-green: #25d366;
  --whatsapp-green-dark: #1da851;

  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --container-width: 1200px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --shadow-soft: 0 10px 30px rgba(8, 24, 29, 0.12);
  --shadow-strong: 0 20px 50px rgba(8, 24, 29, 0.25);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { text-decoration: none; color: inherit; }

ul { list-style: none; }

h1, h2, h3 { font-weight: 800; letter-spacing: -0.01em; color: var(--petrol-900); }

section { position: relative; }

.section-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--teal-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-eyebrow-light { color: #9fd6e0; }

.section-header-center {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
  padding: 0 20px;
}
.section-header-center h2 { font-size: clamp(1.8rem, 3.2vw, 2.4rem); margin-bottom: 12px; }
.section-subtitle { color: var(--text-muted); font-size: 1.05rem; }

/* =========================================================
   BOTÕES
   ========================================================= */
.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--whatsapp-green);
  color: var(--white);
  font-weight: 700;
  padding: 15px 28px;
  border-radius: 100px;
  font-size: 1rem;
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.35);
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.btn-whatsapp i { font-size: 1.2rem; }
.btn-whatsapp:hover {
  background: var(--whatsapp-green-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(37, 211, 102, 0.45);
}
.btn-large { padding: 18px 36px; font-size: 1.1rem; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: background 0.35s ease, padding 0.35s ease, box-shadow 0.35s ease;
}
.site-header.scrolled {
  background: rgba(8, 24, 29, 0.92);
  backdrop-filter: blur(10px);
  padding: 10px 0;
  box-shadow: 0 6px 24px rgba(0,0,0,0.2);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.header-logo img { height: 46px; transition: height 0.3s ease; }
.site-header.scrolled .header-logo img { height: 38px; }

.main-nav ul {
  display: flex;
  gap: 32px;
}
.main-nav a {
  color: var(--white);
  font-weight: 600;
  font-size: 0.95rem;
  position: relative;
  padding: 6px 0;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  height: 2px; width: 0;
  background: var(--whatsapp-green);
  transition: width 0.25s ease;
}
.main-nav a:hover::after { width: 100%; }

.header-whatsapp-btn { padding: 11px 22px; font-size: 0.92rem; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1100;
}
.menu-toggle span {
  width: 26px; height: 3px;
  background: var(--white);
  border-radius: 3px;
  transition: all 0.3s ease;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* =========================================================
   HERO — banner industrial full width
   ========================================================= */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8,24,29,0.92) 0%, rgba(8,24,29,0.72) 38%, rgba(8,24,29,0.35) 68%, rgba(8,24,29,0.55) 100%),
    linear-gradient(180deg, rgba(8,24,29,0.55) 0%, rgba(8,24,29,0.15) 30%, rgba(8,24,29,0.25) 70%, rgba(8,24,29,0.85) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 140px 24px 80px;
  width: 100%;
  color: var(--white);
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: #8fd4de;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.hero-title {
  font-size: clamp(2.2rem, 5.2vw, 3.8rem);
  color: var(--white);
  line-height: 1.12;
  max-width: 780px;
  margin-bottom: 22px;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.hero-subtitle {
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
  max-width: 620px;
  color: #dce8ea;
  margin-bottom: 36px;
}

.hero-cta-group { margin-bottom: 46px; }
.hero-cta-note {
  margin-top: 14px;
  font-size: 0.9rem;
  color: #b8ccd0;
}

.hero-signature {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--white);
  border-top: 1px solid rgba(255,255,255,0.25);
  padding-top: 22px;
  max-width: 700px;
}
.hero-signature i { color: var(--whatsapp-green); margin-right: 6px; }
.hero-signature-divider { opacity: 0.5; }

/* =========================================================
   FAIXA DE BENEFÍCIOS
   ========================================================= */
.benefits-strip {
  background: var(--petrol-900);
  padding: 40px 24px;
}
.benefits-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  color: var(--white);
}
.benefit-item i {
  font-size: 1.5rem;
  color: #6fd0dc;
  margin-top: 4px;
}
.benefit-item h3 { color: var(--white); font-size: 1rem; margin-bottom: 4px; }
.benefit-item p { color: #b9cdd1; font-size: 0.88rem; }

/* =========================================================
   QUEM SOMOS
   ========================================================= */
.quem-somos-section { padding: 90px 24px; background: var(--off-white); }
.section-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.quem-somos-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  width: 100%;
  height: 460px;
  object-fit: cover;
}
.quem-somos-text h2 { font-size: clamp(1.8rem, 3vw, 2.3rem); margin-bottom: 20px; }
.quem-somos-text p { color: var(--text-muted); margin-bottom: 18px; font-size: 1.03rem; }
.quem-somos-text .btn-whatsapp { margin-top: 12px; }

/* =========================================================
   LINHAS DE FORNECIMENTO
   ========================================================= */
.linhas-section { padding: 90px 24px; background: var(--white); }
.linhas-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.linha-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.linha-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-strong); }
.linha-card-img { height: 190px; overflow: hidden; }
.linha-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.linha-card:hover .linha-card-img img { transform: scale(1.06); }
.linha-card-body { padding: 24px; }
.linha-card-body h3 { font-size: 1.15rem; margin-bottom: 10px; }
.linha-card-body p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 18px; min-height: 44px; }

.cta-quote {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--petrol-700);
  border-bottom: 2px solid var(--petrol-700);
  padding-bottom: 3px;
  transition: color 0.25s ease, border-color 0.25s ease, gap 0.25s ease;
}
.cta-quote:hover { color: var(--whatsapp-green-dark); border-color: var(--whatsapp-green-dark); gap: 12px; }

/* =========================================================
   COMMODITIES / ENGENHARIA
   ========================================================= */
.commodities-section, .engenharia-section { padding: 80px 24px; background: var(--light-grey); }
.engenharia-section { background: var(--white); }

.commodities-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 22px;
}
.material-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s ease;
}
.material-card:hover { transform: translateY(-5px); }
.material-card-img { height: 140px; overflow: hidden; }
.material-card-img img { width: 100%; height: 100%; object-fit: cover; }
.material-card-body { padding: 18px; text-align: center; }
.material-sigla {
  display: inline-block;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--petrol-800);
  margin-bottom: 4px;
}
.material-card-body h3 { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); margin-bottom: 14px; }
.cta-quote-sm {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--whatsapp-green-dark);
  border: 1.5px solid var(--whatsapp-green);
  border-radius: 100px;
  padding: 7px 16px;
  transition: background 0.25s ease, color 0.25s ease;
}
.cta-quote-sm:hover { background: var(--whatsapp-green); color: var(--white); }

/* =========================================================
   CTA INTERMEDIÁRIO
   ========================================================= */
.cta-intermediario {
  background: linear-gradient(120deg, var(--petrol-950), var(--petrol-700));
  padding: 90px 24px;
  text-align: center;
}
.cta-intermediario-inner { max-width: 680px; margin: 0 auto; }
.cta-intermediario h2 { color: var(--white); font-size: clamp(1.7rem, 3vw, 2.2rem); margin-bottom: 16px; }
.cta-intermediario p { color: #c7dade; margin-bottom: 30px; font-size: 1.05rem; }

/* =========================================================
   ESTOQUE / DIFERENCIAL
   ========================================================= */
.estoque-section {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.estoque-media { position: absolute; inset: 0; z-index: 0; }
.estoque-media img { width: 100%; height: 100%; object-fit: cover; }
.estoque-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(8,24,29,0.94) 0%, rgba(8,24,29,0.82) 45%, rgba(8,24,29,0.55) 100%);
}
.estoque-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 100px 24px;
  width: 100%;
  max-width: 620px;
}
.estoque-content h2 { color: var(--white); font-size: clamp(1.8rem, 3.4vw, 2.5rem); margin-bottom: 20px; }
.estoque-content p { color: #d3e2e4; font-size: 1.08rem; margin-bottom: 30px; }
.estoque-highlight {
  display: inline-block;
  background: var(--whatsapp-green);
  color: var(--petrol-950);
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 14px 26px;
  border-radius: 100px;
  font-size: 0.95rem;
}

/* =========================================================
   REGIÃO DE ATENDIMENTO
   ========================================================= */
.regiao-section { padding: 90px 24px; background: var(--off-white); }
.regiao-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 50px;
  align-items: center;
}
.regiao-map-wrap {
  background: var(--petrol-950);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-soft);
}
#regiao-map { width: 100%; height: auto; }
.map-ring { fill: none; stroke: rgba(111, 208, 220, 0.18); stroke-width: 1.5; }
.map-ring-inner { stroke: rgba(111, 208, 220, 0.3); }
.map-line { stroke: rgba(111, 208, 220, 0.4); stroke-width: 1.5; stroke-dasharray: 4 4; }
.map-city circle { fill: #8fd4de; }
.map-city text { fill: #dceef1; font-size: 13px; font-family: var(--font-main); font-weight: 600; }
.map-city-betim circle { fill: var(--whatsapp-green); stroke: #ffffff; stroke-width: 2; }
.map-betim-label { fill: var(--whatsapp-green); font-size: 16px; font-weight: 800; letter-spacing: 0.05em; }

.regiao-cities-list h3 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: var(--petrol-900);
}
.regiao-cities-list ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 20px;
}
.regiao-cities-list li {
  font-size: 0.95rem;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  gap: 8px;
}
.regiao-cities-list li i { color: var(--teal-accent); font-size: 0.85rem; }

/* =========================================================
   POR QUE ESCOLHER
   ========================================================= */
.porque-section { padding: 90px 24px; background: var(--white); }
.porque-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 26px;
}
.porque-item {
  text-align: center;
  padding: 34px 20px;
  border-radius: var(--radius-md);
  background: var(--off-white);
  transition: transform 0.3s ease, background 0.3s ease;
}
.porque-item:hover { transform: translateY(-6px); background: var(--light-grey); }
.porque-item i { font-size: 1.8rem; color: var(--petrol-700); margin-bottom: 16px; }
.porque-item h3 { font-size: 1rem; margin-bottom: 8px; }
.porque-item p { font-size: 0.88rem; color: var(--text-muted); }

/* =========================================================
   CTA FINAL
   ========================================================= */
.cta-final-section {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.cta-final-media { position: absolute; inset: 0; z-index: 0; }
.cta-final-media img { width: 100%; height: 100%; object-fit: cover; }
.cta-final-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(8,24,29,0.88) 0%, rgba(8,24,29,0.75) 50%, rgba(8,24,29,0.92) 100%);
}
.cta-final-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding: 90px 24px;
  color: var(--white);
}
.cta-final-content h2 { color: var(--white); font-size: clamp(1.9rem, 3.6vw, 2.6rem); margin-bottom: 18px; }
.cta-final-content p { color: #d3e2e4; font-size: 1.08rem; margin-bottom: 34px; }
.cta-final-contact {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cta-final-contact strong { font-size: 1.05rem; }
.cta-final-contact span { color: #b8ccd0; font-size: 0.95rem; }

/* =========================================================
   RODAPÉ
   ========================================================= */
.site-footer { background: var(--petrol-950); color: #b8ccd0; padding: 70px 24px 30px; }
.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 50px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand img { height: 44px; margin-bottom: 20px; }
.footer-brand p { font-size: 0.92rem; line-height: 1.7; max-width: 420px; }
.footer-contact h3 { color: var(--white); font-size: 1.05rem; margin-bottom: 16px; }
.footer-contact p { margin-bottom: 10px; font-size: 0.92rem; }
.footer-contact a:hover { color: var(--whatsapp-green); }
.footer-contact i { width: 18px; color: #6fd0dc; margin-right: 4px; }

.footer-bottom {
  max-width: var(--container-width);
  margin: 0 auto;
  padding-top: 24px;
  font-size: 0.82rem;
  color: #6f8890;
}

/* =========================================================
   WHATSAPP FLUTUANTE
   ========================================================= */
.whatsapp-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 60px;
  height: 60px;
  background: var(--whatsapp-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.8rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  z-index: 999;
  transition: transform 0.25s ease;
  animation: pulse-wa 2.4s infinite;
}
.whatsapp-float:hover { transform: scale(1.08); }

@keyframes pulse-wa {
  0% { box-shadow: 0 8px 24px rgba(0,0,0,0.3), 0 0 0 0 rgba(37, 211, 102, 0.5); }
  70% { box-shadow: 0 8px 24px rgba(0,0,0,0.3), 0 0 0 14px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 8px 24px rgba(0,0,0,0.3), 0 0 0 0 rgba(37, 211, 102, 0); }
}

.mobile-fixed-cta { display: none; }

/* =========================================================
   ANIMAÇÃO DE ENTRADA
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* =========================================================
   RESPONSIVO — TABLET
   ========================================================= */
@media (max-width: 1024px) {
  .commodities-grid { grid-template-columns: repeat(3, 1fr); }
  .porque-grid { grid-template-columns: repeat(3, 1fr); }
  .linhas-grid { grid-template-columns: repeat(2, 1fr); }
  .benefits-inner { grid-template-columns: repeat(2, 1fr); }
  .section-grid { grid-template-columns: 1fr; gap: 40px; }
  .quem-somos-image img { height: 340px; }
  .regiao-grid { grid-template-columns: 1fr; }
}

/* =========================================================
   RESPONSIVO — MOBILE
   ========================================================= */
@media (max-width: 768px) {
  .header-inner { padding: 0 18px; }
  .header-logo img { height: 36px; }
  .main-nav {
    position: fixed;
    top: 0; right: -100%;
    width: 78%;
    max-width: 320px;
    height: 100vh;
    background: var(--petrol-950);
    padding: 100px 30px 30px;
    transition: right 0.35s ease;
    box-shadow: -10px 0 30px rgba(0,0,0,0.3);
  }
  .main-nav.open { right: 0; }
  .main-nav ul { flex-direction: column; gap: 26px; }
  .header-whatsapp-btn { display: none; }
  .menu-toggle { display: flex; }

  .hero-content { padding: 120px 20px 100px; }
  .hero-title { font-size: 2rem; }
  .hero-signature { flex-direction: column; align-items: flex-start; gap: 8px; }
  .hero-signature-divider { display: none; }

  .benefits-inner { grid-template-columns: 1fr; gap: 24px; }

  .quem-somos-section, .linhas-section, .commodities-section, .engenharia-section,
  .cta-intermediario, .regiao-section, .porque-section { padding: 60px 20px; }

  .linhas-grid { grid-template-columns: 1fr; }
  .commodities-grid { grid-template-columns: repeat(2, 1fr); }
  .porque-grid { grid-template-columns: 1fr 1fr; }

  .estoque-content, .cta-final-content { padding: 70px 20px 110px; }
  .regiao-cities-list ul { grid-template-columns: 1fr 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: 36px; }

  .whatsapp-float { bottom: 86px; width: 54px; height: 54px; font-size: 1.6rem; }

  .mobile-fixed-cta {
    display: block;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 998;
    background: var(--petrol-950);
    padding: 12px 16px;
    box-shadow: 0 -6px 20px rgba(0,0,0,0.25);
  }
  .mobile-fixed-cta a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--whatsapp-green);
    color: var(--white);
    font-weight: 700;
    padding: 13px;
    border-radius: 100px;
    font-size: 0.92rem;
  }

  body { padding-bottom: 66px; }
}

@media (max-width: 480px) {
  .commodities-grid { grid-template-columns: 1fr 1fr; }
  .porque-grid { grid-template-columns: 1fr; }
  .regiao-cities-list ul { grid-template-columns: 1fr; }
  .hero-title { font-size: 1.7rem; }
}