/* ===========================================================
   GHG — Engenharia, Perícias e Gestão em SST
   Design tokens
=========================================================== */
:root {
  /* Palette (from brand logo) */
  --navy-950: #0f1638;
  --navy-900: #141d4d;
  --navy-800: #1c2a6e;
  --navy-700: #263a8f;
  --blue-500: #2f6fb0;
  --green-600: #3f8f2e;
  --green-500: #5aa93a;
  --green-400: #7dc242;
  --paper: #f6f8fb;
  --paper-alt: #eef1f9;
  --ink: #171d3a;
  --ink-soft: #4d5578;
  --line: #dfe4f2;
  --white: #ffffff;

  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 22px;

  --shadow-card: 0 10px 30px -12px rgba(15, 22, 56, 0.18);
  --shadow-pop: 0 18px 44px -14px rgba(15, 22, 56, 0.28);

  --container: 1180px;
}

/* ===========================================================
   Reset
=========================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy-900);
  margin: 0 0 .5em;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
p { margin: 0 0 1em; color: var(--ink-soft); }
button { font-family: inherit; cursor: pointer; }

:focus-visible {
  outline: 3px solid var(--green-400);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green-600);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--green-500);
  display: inline-block;
}

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); }
.section-head p { font-size: 1.05rem; }

section { padding: 96px 0; }

/* ===========================================================
   Hazard-stripe divider (signature element)
   A thin repeating diagonal stripe — the vernacular of
   workplace-safety signage, in brand navy/green.
=========================================================== */
.hazard-divider {
  height: 14px;
  width: 100%;
  background: repeating-linear-gradient(
    -45deg,
    var(--navy-900) 0 22px,
    var(--green-500) 22px 44px
  );
}

/* ===========================================================
   Buttons
=========================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 2px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn svg { flex-shrink: 0; }
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(135deg, var(--green-500), var(--green-600));
  color: var(--white);
  box-shadow: 0 12px 26px -10px rgba(63, 143, 46, 0.55);
}
.btn-primary:hover { box-shadow: 0 16px 32px -10px rgba(63, 143, 46, 0.65); }

.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.55);
  color: var(--white);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); }

.btn-outline-dark {
  background: transparent;
  border-color: var(--navy-800);
  color: var(--navy-800);
}
.btn-outline-dark:hover { background: var(--navy-800); color: var(--white); }

.btn-block { width: 100%; }

/* ===========================================================
   Header
=========================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 248, 251, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
  gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 46px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav-links a {
  font-weight: 600;
  font-size: 0.94rem;
  color: var(--navy-900);
  position: relative;
  padding: 6px 0;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--green-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}
.nav-links a:hover::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.header-actions .btn { padding: 11px 20px; font-size: 0.9rem; }
.btn-whatsapp-header {
  background: linear-gradient(135deg, var(--green-500), var(--green-600));
  color: #fff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--navy-900);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}

/* ===========================================================
   Hero
=========================================================== */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(120deg, var(--navy-950) 0%, var(--navy-800) 52%, var(--blue-500) 100%);
  padding: 110px 0 90px;
  color: var(--white);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.055) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 90% 80% at 30% 20%, black 40%, transparent 85%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -18%;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(122, 194, 66, 0.35), transparent 70%);
  pointer-events: none;
}
.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr 0.85fr;
  gap: 56px;
  align-items: center;
}
.hero-copy .eyebrow { color: var(--green-400); }
.hero-copy .eyebrow::before { background: var(--green-400); }
.hero-copy h1 {
  color: var(--white);
  font-size: clamp(2.1rem, 4.4vw, 3.35rem);
  margin-bottom: 22px;
}
.hero-copy h1 em {
  font-style: normal;
  color: var(--green-400);
}
.hero-copy > p {
  color: rgba(255,255,255,0.82);
  font-size: 1.1rem;
  max-width: 520px;
}
.hero-checks {
  display: grid;
  gap: 12px;
  margin: 26px 0 34px;
}
.hero-checks li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 1rem;
}
.hero-checks svg {
  flex-shrink: 0;
  color: var(--green-400);
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; }

.hero-panel {
  position: relative;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(6px);
}
.hero-panel-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 18px;
}
.hero-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.hero-stat {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 18px 16px;
}
.hero-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: var(--white);
}
.hero-stat span {
  font-size: 0.86rem;
  color: rgba(255,255,255,0.72);
}

/* ===========================================================
   Trust bar
=========================================================== */
.trust-bar {
  background: var(--white);
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.trust-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 8px;
}
.trust-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--navy-900);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--green-400);
}
.trust-card h3 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}
.trust-card p { margin: 0; font-size: 0.92rem; }

/* ===========================================================
   Services
=========================================================== */
.services { background: var(--paper); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  box-shadow: var(--shadow-card);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  position: relative;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-pop);
  border-color: rgba(90, 169, 58, 0.35);
}
.service-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--navy-800), var(--navy-950));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-400);
  margin-bottom: 18px;
}
.service-card h3 { font-size: 1.12rem; margin-bottom: 8px; }
.service-card p { font-size: 0.95rem; margin-bottom: 0; }
.service-tag {
  position: absolute;
  top: 22px;
  right: 22px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--green-600);
  background: rgba(90, 169, 58, 0.12);
  padding: 4px 10px;
  border-radius: 999px;
}

/* ===========================================================
   About / differentiators
=========================================================== */
.about { background: var(--white); }
.about .container {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.about-visual {
  background: linear-gradient(155deg, var(--navy-900), var(--blue-500));
  border-radius: var(--radius-lg);
  padding: 40px;
  color: #fff;
  position: relative;
  overflow: hidden;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.about-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    -45deg, rgba(255,255,255,0.05) 0 10px, transparent 10px 20px
  );
}
.about-visual-inner { position: relative; z-index: 1; }
.about-visual h3 {
  color: #fff;
  font-size: 1.5rem;
  max-width: 320px;
}
.about-visual p { color: rgba(255,255,255,0.78); max-width: 340px; }

.about-list { display: grid; gap: 20px; margin-top: 8px; }
.about-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.about-item .num {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--green-600);
  background: rgba(90, 169, 58, 0.12);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.about-item h3 { font-size: 1.05rem; margin-bottom: 4px; }
.about-item p { margin: 0; font-size: 0.94rem; }

/* ===========================================================
   CTA band
=========================================================== */
.cta-band {
  background: linear-gradient(120deg, var(--green-600), var(--green-500) 60%, var(--green-400));
  color: #fff;
  padding: 64px 0;
}
.cta-band .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-band h2 { color: #fff; margin-bottom: 6px; font-size: clamp(1.4rem, 2.6vw, 1.9rem); }
.cta-band p { color: rgba(255,255,255,0.9); margin: 0; }
.cta-band .btn-primary {
  background: var(--navy-950);
  box-shadow: 0 12px 26px -10px rgba(15, 22, 56, 0.5);
}

/* ===========================================================
   Contact
=========================================================== */
.contact { background: var(--paper-alt); }
.contact .container {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 48px;
}
.contact-info-card {
  background: var(--navy-950);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 34px;
}
.contact-info-card h3 { color: #fff; font-size: 1.3rem; }
.contact-info-card > p { color: rgba(255,255,255,0.75); }
.contact-list { display: grid; gap: 22px; margin-top: 26px; }
.contact-list li { display: flex; gap: 14px; align-items: flex-start; }
.contact-list .ic {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--green-400);
  flex-shrink: 0;
}
.contact-list strong { display: block; font-size: 0.92rem; color: rgba(255,255,255,0.6); font-weight: 600; }
.contact-list span, .contact-list a { font-size: 1rem; font-weight: 600; }
.contact-list a:hover { color: var(--green-400); }

.social-row { display: flex; gap: 12px; margin-top: 28px; }
.social-row a {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  transition: background .2s ease;
}
.social-row a:hover { background: var(--green-500); }

.contact-form {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 38px;
  box-shadow: var(--shadow-card);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: 6px;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--paper);
  transition: border-color .18s ease, box-shadow .18s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--green-500);
  box-shadow: 0 0 0 4px rgba(90, 169, 58, 0.14);
}
.field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 0.82rem; color: var(--ink-soft); margin-top: 10px; text-align: center; }
.form-success {
  display: none;
  align-items: center;
  gap: 10px;
  background: rgba(90, 169, 58, 0.12);
  color: var(--green-600);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-weight: 600;
  font-size: 0.92rem;
  margin-top: 16px;
}
.form-success.show { display: flex; }

/* ===========================================================
   Footer
=========================================================== */
.site-footer {
  background: var(--navy-950);
  color: rgba(255,255,255,0.72);
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1.1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand img { height: 42px; filter: brightness(0) invert(1); margin-bottom: 14px; }
.footer-brand p { color: rgba(255,255,255,0.6); font-size: 0.92rem; max-width: 280px; }
.footer-col h4 {
  color: #fff;
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 16px;
}
.footer-col ul { display: grid; gap: 10px; }
.footer-col a { font-size: 0.92rem; color: rgba(255,255,255,0.65); }
.footer-col a:hover { color: var(--green-400); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 0.84rem;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
  gap: 10px;
}

/* ===========================================================
   Floating WhatsApp button
=========================================================== */
.whatsapp-float {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--green-500), var(--green-600));
  color: #fff;
  padding: 15px 20px;
  border-radius: 999px;
  box-shadow: 0 14px 30px -10px rgba(63, 143, 46, 0.6);
  font-weight: 700;
  font-size: 0.92rem;
  transition: transform .2s ease, box-shadow .2s ease;
  animation: float-pop .5s ease 1.2s both;
}
.whatsapp-float:hover { transform: translateY(-3px); box-shadow: 0 18px 36px -8px rgba(63, 143, 46, 0.7); }
@keyframes float-pop {
  from { transform: scale(0.6); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* ===========================================================
   Scroll reveal
=========================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ===========================================================
   Responsive
=========================================================== */
@media (max-width: 980px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-panel { order: -1; }
  .about .container { grid-template-columns: 1fr; }
  .about-visual { min-height: 260px; }
  .contact .container { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  section { padding: 66px 0; }
  .nav-links, .header-actions .btn-outline-dark { display: none; }
  .site-header.open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 84px;
    left: 0; right: 0;
    background: var(--white);
    padding: 22px 24px;
    gap: 18px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-card);
  }
  .nav-toggle { display: flex; }
  .trust-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-band .container { flex-direction: column; text-align: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .whatsapp-float span { display: none; }
  .whatsapp-float { padding: 15px; }
}