/* ==========================================================
   ESTRUTURAL NAVES — LANDING PAGE
   Stack: HTML + CSS + JS puro
   Aesthetic: Industrial / engineering / refined
   ========================================================== */

/* ============== RESET & TOKENS ============== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font: inherit; }

:root {
  /* CORES — Identidade Estrutural Naves */
  --ink: #0F1115;           /* preto-grafite dominante */
  --ink-soft: #1A1E26;
  --steel: #2A2F3A;
  --concrete: #5C6370;
  --silver: #9AA0AB;
  --bone: #F5F4F0;          /* off-white quente */
  --paper: #FFFFFF;
  --line: #E6E5E0;

  --signal: #0099D8;        /* azul Estrutural Naves (principal) */
  --signal-dark: #007AAD;
  --signal-soft: #E6F4FB;
  --signal-light: #3FB4E5;  /* azul claro complementar */

  --whatsapp: #25D366;
  --whatsapp-dark: #128C7E;

  /* TIPOGRAFIA */
  --font-display: 'Archivo', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* LAYOUT */
  --container: 1280px;
  --padding-x: clamp(20px, 4vw, 48px);

  /* TIMING */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bone);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--padding-x);
  width: 100%;
}

/* ============== TIPOGRAFIA ============== */
.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.75rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 1rem;
}
.section-title em {
  font-style: normal;
  color: var(--signal);
  position: relative;
}
.section-title.light { color: var(--bone); }
.section-title.light em { color: var(--signal); }

.section-subtitle {
  font-size: 1.05rem;
  color: var(--concrete);
  max-width: 600px;
  line-height: 1.6;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 1.25rem;
}
.section-tag .tag-line {
  width: 32px;
  height: 1px;
  background: var(--signal);
  display: inline-block;
}
.section-tag.light { color: var(--signal); }

.section-header { margin-bottom: clamp(40px, 6vw, 72px); }
.section-header.center { text-align: center; }
.section-header.center .section-subtitle { margin: 0 auto; }
.section-header.center .section-tag { justify-content: center; }

.section {
  padding: clamp(80px, 10vw, 140px) 0;
  position: relative;
}

/* ============== BOTÕES ============== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: all 0.3s var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn-lg { padding: 18px 34px; font-size: 0.95rem; }
.btn-block { width: 100%; }

.btn-primary {
  background: var(--signal);
  color: white;
  border: 2px solid var(--signal);
}
.btn-primary:hover {
  background: var(--signal-dark);
  border-color: var(--signal-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 153, 216, 0.35);
}
.btn-primary .arrow { transition: transform 0.3s var(--ease-out); }
.btn-primary:hover .arrow { transform: translateX(4px); }

.btn-ghost {
  background: transparent;
  color: var(--bone);
  border: 2px solid rgba(255, 255, 255, 0.3);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--bone);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--ink);
}
.btn-outline:hover {
  background: var(--ink);
  color: var(--bone);
}

.btn-dark {
  background: var(--ink);
  color: var(--bone);
  border: 2px solid var(--ink);
}
.btn-dark:hover { background: var(--steel); border-color: var(--steel); }

.btn-header {
  padding: 12px 22px;
  font-size: 0.8rem;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--signal);
  margin-top: 1.5rem;
  transition: gap 0.3s var(--ease-out);
}
.link-arrow:hover { gap: 14px; }

/* ============== HEADER ============== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: all 0.4s var(--ease-out);
  padding: 20px 0;
}
.site-header.scrolled {
  background: rgba(15, 17, 21, 0.95);
  backdrop-filter: blur(12px);
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: opacity 0.2s;
}
.logo:hover { opacity: 0.8; }
.logo-img {
  height: 88px;
  width: auto;
  display: block;
}
@media (max-width: 640px) {
  .logo-img { height: 64px; }
}

/* Footer logo */
.footer-logo-img {
  height: 48px;
  width: auto;
  display: block;
  margin-bottom: 20px;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-left: auto;
  margin-right: 20px;
}
.nav-desktop a {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: var(--bone);
  text-transform: uppercase;
  position: relative;
  padding: 4px 0;
  transition: color 0.2s;
}
.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--signal);
  transition: width 0.3s var(--ease-out);
}
.nav-desktop a:hover { color: var(--signal); }
.nav-desktop a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 26px;
  height: 2px;
  background: var(--bone);
  transition: all 0.3s var(--ease-out);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 360px;
  height: 100vh;
  background: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 100px 32px 40px;
  transition: right 0.4s var(--ease-out);
  z-index: 99;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}
.nav-mobile.active { right: 0; }
.nav-mobile a {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--bone);
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-mobile a.btn { margin-top: 24px; border: 2px solid var(--signal); justify-content: center; }

/* ============== SECTION INDICATOR (vertical lateral) ============== */
.section-indicator {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 50;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
}
.section-indicator.visible { opacity: 1; }
.indicator-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(15, 17, 21, 0.3);
  position: relative;
  transition: all 0.3s var(--ease-out);
}
.indicator-dot.active {
  background: var(--signal);
  transform: scale(1.4);
}
.indicator-dot::before {
  content: attr(data-label);
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--ink);
  color: var(--bone);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.indicator-dot:hover::before { opacity: 1; }

/* ============== HERO ============== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 0 80px;
  color: var(--bone);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.03) brightness(1.05);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(15, 17, 21, 0.78) 0%,
    rgba(15, 17, 21, 0.55) 50%,
    rgba(15, 17, 21, 0.70) 100%
  );
}

.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 40px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--signal);
  margin-bottom: 28px;
  font-weight: 500;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.2s forwards;
}
.hero-tag .tag-line {
  width: 40px;
  height: 1px;
  background: var(--signal);
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 6.5vw, 5.5rem);
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin-bottom: 32px;
  color: var(--bone);
  max-width: 1000px;
}
.hero-title .line {
  display: block;
  overflow: hidden;
}
.hero-title .line > * {
  display: inline-block;
  transform: translateY(110%);
  animation: slideUp 0.9s var(--ease-out) forwards;
}
.hero-title .line:nth-child(1) > * { animation-delay: 0.4s; }
.hero-title .line:nth-child(2) > * { animation-delay: 0.55s; }
.hero-title .line:nth-child(3) > * { animation-delay: 0.7s; }
.hero-title .line:nth-child(4) > * { animation-delay: 0.85s; }
.hero-title em {
  font-style: normal;
  color: var(--signal);
}
.hero-title strong {
  font-weight: 900;
  position: relative;
  display: inline-block;
}
.hero-title strong::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 4px;
  background: var(--signal);
}
.hero-title .line-accent { display: block; }

.hero-subtitle {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  font-weight: 300;
  color: rgba(245, 244, 240, 0.75);
  max-width: 680px;
  margin-bottom: 40px;
  line-height: 1.6;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1s forwards;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1.15s forwards;
}

.hero-scroll {
  position: absolute;
  right: var(--padding-x);
  bottom: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: rgba(245, 244, 240, 0.5);
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1.4s forwards;
}
.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--signal), transparent);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 50%;
  background: var(--signal);
  animation: scrollDot 2s ease-in-out infinite;
}
@keyframes scrollDot {
  0% { top: -100%; }
  100% { top: 100%; }
}

.hero-meta {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 28px var(--padding-x);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: auto;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1.3s forwards;
}
.meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.meta-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(245, 244, 240, 0.45);
}
.meta-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--bone);
}
.meta-divider {
  width: 1px;
  height: 28px;
  background: rgba(255, 255, 255, 0.15);
}

/* ============== SOBRE ============== */
.section-sobre {
  background: var(--bone);
}
.sobre-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: center;
}
.sobre-text p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--steel);
  margin-bottom: 16px;
}

.numbers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--line);
  border: 1px solid var(--line);
}
.number-card {
  background: var(--paper);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: background 0.3s var(--ease-out);
}
.number-card:hover {
  background: var(--ink);
}
.number-card:hover .number-value,
.number-card:hover .number-label { color: var(--bone); }
.number-card:hover .number-value { color: var(--signal); }

.number-value {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--ink);
  transition: color 0.3s var(--ease-out);
}
.number-suffix-static {
  font-size: 0.5em;
  color: var(--signal);
  margin-left: 4px;
}
.number-label {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.85rem;
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--concrete);
  transition: color 0.3s var(--ease-out);
}

/* ============== ESTRUTURA E FROTA (novo bloco) ============== */
.section-estrutura {
  background: var(--paper);
  border-top: 1px solid var(--line);
}
.estrutura-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 24px;
}
.estrutura-card {
  background: var(--bone);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: all 0.4s var(--ease-out);
}
.estrutura-card:hover {
  border-color: var(--signal);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(15, 17, 21, 0.08);
}
.estrutura-card-large {
  grid-row: span 1;
}
.estrutura-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--ink);
}
.estrutura-card-large .estrutura-image {
  aspect-ratio: 16 / 9;
}
.estrutura-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(15%);
  transition: all 0.6s var(--ease-out);
}
.estrutura-card:hover .estrutura-image img {
  filter: grayscale(0%);
  transform: scale(1.04);
}
.estrutura-body {
  padding: 28px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.estrutura-card-large .estrutura-body { padding: 36px 32px; }
.estrutura-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--signal);
  margin-bottom: 12px;
  font-weight: 500;
}
.estrutura-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 1.5vw, 1.4rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 12px;
}
.estrutura-card-large .estrutura-title {
  font-size: clamp(1.3rem, 2vw, 1.75rem);
}
.estrutura-text {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--concrete);
}

/* ============== SOLUÇÕES ============== */
.section-solucoes {
  background: var(--ink);
  color: var(--bone);
}
.solucoes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.solucao-card {
  background: var(--ink-soft);
  border: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
  transition: all 0.4s var(--ease-out);
}
.solucao-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 153, 216, 0.4);
}
.solucao-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.solucao-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(15%);
  transition: all 0.6s var(--ease-out);
}
.solucao-card:hover .solucao-image img {
  filter: grayscale(0%);
  transform: scale(1.05);
}
.solucao-number {
  position: absolute;
  top: 24px;
  right: 24px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 3rem;
  line-height: 1;
  color: var(--bone);
  background: rgba(0,0,0,0.3);
  backdrop-filter: blur(8px);
  padding: 8px 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.solucao-body {
  padding: 36px 32px;
}
.solucao-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--bone);
}
.solucao-description {
  font-size: 0.98rem;
  line-height: 1.65;
  color: rgba(245, 244, 240, 0.7);
  margin-bottom: 24px;
}
.solucao-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.solucao-tags span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--silver);
  padding: 6px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.02);
}
.solucao-card .btn-outline {
  color: var(--bone);
  border-color: rgba(255, 255, 255, 0.3);
}
.solucao-card .btn-outline:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--bone);
}

/* ============== OBRAS ============== */
.section-obras { background: var(--bone); }
.obras-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.obra-card {
  display: flex;
  flex-direction: column;
  background: var(--bone);
  border: 1px solid rgba(15, 17, 21, 0.08);
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out);
}
.obra-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(15, 17, 21, 0.14);
}
.obra-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--ink);
}
.obra-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(20%);
  transition: transform 0.6s var(--ease-out), filter 0.6s var(--ease-out);
}
.obra-card:hover .obra-thumb img {
  filter: grayscale(0%);
  transform: scale(1.06);
}
.obra-count {
  position: absolute;
  bottom: 10px;
  right: 10px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(15, 17, 21, 0.82);
  color: var(--bone);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 9px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
  z-index: 2;
}
.obra-count::before {
  content: '';
  width: 12px;
  height: 12px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2'%3E%3Crect x='3' y='3' width='14' height='14' rx='2'/%3E%3Cpath d='M21 7v12a2 2 0 0 1-2 2H7'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}
.obra-caption {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px;
}
.obra-tipo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  line-height: 1.25;
}
.obra-local {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(15, 17, 21, 0.55);
}

.obras-cta { text-align: center; margin-top: 48px; }

/* ============== CLIENTES ============== */
.section-clientes {
  background: var(--ink);
  color: var(--bone);
  position: relative;
}
.section-clientes::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(0, 153, 216, 0.05) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}

/* Desktop: grid 6 colunas, refinado */
.clientes-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
}
.cliente-logo {
  background: var(--ink-soft);
  aspect-ratio: 5 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: rgba(245, 244, 240, 0.55);
  letter-spacing: -0.005em;
  transition: all 0.4s var(--ease-out);
  text-align: center;
  padding: 16px;
  position: relative;
}
.cliente-logo:hover {
  background: var(--steel);
  color: var(--bone);
}
.cliente-logo:hover::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--signal);
  pointer-events: none;
}

/* MOBILE/TABLET: marquee infinito (2 linhas, scroll horizontal auto) */
.clientes-marquee {
  display: none;
}

@media (max-width: 768px) {
  .clientes-grid {
    display: none;
  }

  .clientes-marquee {
    display: block;
    position: relative;
    overflow: hidden;
    /* Máscara de fade nas laterais */
    -webkit-mask-image: linear-gradient(
      to right,
      transparent 0%,
      black 8%,
      black 92%,
      transparent 100%
    );
            mask-image: linear-gradient(
      to right,
      transparent 0%,
      black 8%,
      black 92%,
      transparent 100%
    );
    margin: 0 calc(-1 * var(--padding-x));
  }

  .marquee-row {
    display: flex;
    gap: 12px;
    width: max-content;
    padding: 6px 0;
  }

  .marquee-row-1 {
    animation: marquee-scroll 35s linear infinite;
  }
  .marquee-row-2 {
    animation: marquee-scroll-reverse 38s linear infinite;
    margin-top: 12px;
  }

  .marquee-row:hover {
    animation-play-state: paused;
  }

  .cliente-pill {
    flex-shrink: 0;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--bone);
    background: var(--ink-soft);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 14px 22px;
    white-space: nowrap;
    letter-spacing: -0.005em;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s var(--ease-out);
  }
  .cliente-pill::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--signal);
    flex-shrink: 0;
  }
  .cliente-pill:hover {
    background: var(--steel);
    border-color: var(--signal);
  }
}

@keyframes marquee-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes marquee-scroll-reverse {
  0%   { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-row-1, .marquee-row-2 {
    animation: none;
  }
}

/* ============== DIFERENCIAIS ============== */
.section-diferenciais { background: var(--bone); }
.diferenciais-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.diferencial-card {
  background: var(--paper);
  padding: 40px 32px;
  position: relative;
  transition: all 0.3s var(--ease-out);
  display: flex;
  flex-direction: column;
}
.diferencial-card:hover {
  background: var(--ink);
  color: var(--bone);
}
.diferencial-card:hover .diferencial-title,
.diferencial-card:hover .diferencial-text { color: inherit; }
.diferencial-card:hover .diferencial-text { color: rgba(245, 244, 240, 0.7); }
.diferencial-card:hover .diferencial-number { color: var(--signal); }
.diferencial-card:hover .diferencial-icon { color: var(--signal); }

.diferencial-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--silver);
  margin-bottom: 28px;
  transition: color 0.3s;
}
.diferencial-icon {
  width: 56px;
  height: 56px;
  color: var(--ink);
  margin-bottom: 24px;
  transition: color 0.3s;
}
.diferencial-icon svg { width: 100%; height: 100%; }
.diferencial-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 10px;
  transition: color 0.3s;
}
.diferencial-text {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--concrete);
  transition: color 0.3s;
}

/* ============== LOCALIZAÇÃO ============== */
.section-localizacao {
  background: var(--paper);
  padding: clamp(80px, 10vw, 140px) 0;
}
.localizacao-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 5vw, 80px);
  align-items: center;
}
.localizacao-text {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--steel);
  margin-bottom: 36px;
  max-width: 480px;
}
.info-blocks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px 24px;
  margin-bottom: 40px;
}
.info-block {
  border-left: 2px solid var(--signal);
  padding-left: 16px;
}
.info-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--signal);
  margin-bottom: 6px;
}
.info-value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--ink);
}
.info-value a { transition: color 0.2s; }
.info-value a:hover { color: var(--signal); }

.cidades-atendidas { margin-top: 24px; }
.cidades-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--concrete);
  margin-bottom: 16px;
}
.cidades-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.cidades-pills span {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 12px;
  background: var(--bone);
  border: 1px solid var(--line);
  color: var(--steel);
  transition: all 0.2s;
}
.cidades-pills span:hover {
  background: var(--ink);
  color: var(--bone);
  border-color: var(--ink);
}

.localizacao-map {
  aspect-ratio: 4 / 5;
  position: relative;
  border: 1px solid var(--line);
  overflow: hidden;
}
.map-link {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
  transition: transform 0.4s var(--ease-out);
}
.map-link:hover { transform: scale(1.02); }
.map-placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.map-pattern {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.map-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px;
  background: linear-gradient(180deg, transparent 0%, rgba(15, 17, 21, 0.05) 50%, rgba(15, 17, 21, 0.85) 100%);
  color: white;
  transition: background 0.3s var(--ease-out);
}
.map-link:hover .map-overlay {
  background: linear-gradient(180deg, transparent 0%, rgba(0, 153, 216, 0.1) 50%, rgba(15, 17, 21, 0.9) 100%);
}
.map-icon {
  width: 60px;
  height: 60px;
  background: var(--signal);
  color: white;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 8px 24px rgba(0, 153, 216, 0.4);
  margin-top: auto;
}
.map-text {
  margin-top: auto;
}
.map-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.map-address {
  font-size: 0.85rem;
  opacity: 0.85;
  line-height: 1.5;
  margin-bottom: 20px;
}
.map-cta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--signal-light);
  font-weight: 500;
  text-transform: uppercase;
}

/* ============== CONTATO ============== */
.section-contato {
  background: var(--ink);
  color: var(--bone);
  position: relative;
  overflow: hidden;
}
.contato-bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.contato-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(40px, 5vw, 80px);
  align-items: start;
  position: relative;
}
.contato-lead {
  font-size: 1.05rem;
  line-height: 1.65;
  color: rgba(245, 244, 240, 0.7);
  margin-bottom: 36px;
  max-width: 480px;
}

.contato-channels {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.channel {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s var(--ease-out);
}
.channel:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(0, 153, 216, 0.4);
  transform: translateX(4px);
}
.channel-icon {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 153, 216, 0.12);
  color: var(--signal);
  border-radius: 4px;
  flex-shrink: 0;
}
.channel-icon.whatsapp {
  background: rgba(37, 211, 102, 0.15);
  color: var(--whatsapp);
}
.channel-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(245, 244, 240, 0.5);
  margin-bottom: 4px;
}
.channel-value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--bone);
}

/* ============== FORMULÁRIO ============== */
.contato-form-wrap {
  background: var(--paper);
  padding: clamp(28px, 4vw, 44px);
  position: relative;
}
.contato-form-wrap::before {
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  width: 60px;
  height: 60px;
  border-top: 3px solid var(--signal);
  border-right: 3px solid var(--signal);
}
.contato-form-wrap::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: -1px;
  width: 60px;
  height: 60px;
  border-bottom: 3px solid var(--signal);
  border-left: 3px solid var(--signal);
}

.form-row { margin-bottom: 18px; }
.form-row-double {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.form-row label {
  display: block;
  width: 100%;
}
.form-row span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 8px;
  font-weight: 500;
}
.form-row span i {
  font-style: normal;
  color: var(--signal);
  margin-left: 2px;
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--bone);
  border: 1.5px solid var(--line);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  transition: all 0.2s;
  border-radius: 2px;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--signal);
  background: var(--paper);
  box-shadow: 0 0 0 3px rgba(0, 153, 216, 0.12);
}
.form-row textarea { resize: vertical; min-height: 100px; }
.form-row input.error,
.form-row select.error,
.form-row textarea.error {
  border-color: #DC2626;
  background: #FEF2F2;
}

.form-note {
  font-size: 0.78rem;
  color: var(--concrete);
  margin-top: 16px;
  line-height: 1.5;
  text-align: center;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}
.form-success.show { display: block; animation: fadeUp 0.5s var(--ease-out); }
.success-icon {
  color: var(--whatsapp);
  margin-bottom: 20px;
  display: inline-flex;
}
.form-success h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--ink);
  margin-bottom: 12px;
}
.form-success p {
  color: var(--steel);
  line-height: 1.6;
}

/* ============== FOOTER ============== */
.site-footer {
  background: #0A0C10;
  color: rgba(245, 244, 240, 0.7);
  padding: 64px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-tagline {
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 16px;
  max-width: 320px;
}
.footer-cnpj {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: rgba(245, 244, 240, 0.4);
}

/* ============== CONVÊNIOS BAND ============== */
.convenios-band {
  margin-top: 60px;
  padding: 32px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  position: relative;
}
.convenios-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--signal-light);
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 20px;
}
.convenios-label .tag-line {
  width: 32px;
  height: 1px;
  background: var(--signal-light);
}
.convenios-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.convenio-item {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--bone);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 14px 18px;
  text-align: center;
  letter-spacing: 0.02em;
  transition: all 0.3s var(--ease-out);
}
.convenio-item:hover {
  background: rgba(0, 153, 216, 0.12);
  border-color: rgba(0, 153, 216, 0.4);
  color: var(--signal-light);
}

.footer-col h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bone);
  margin-bottom: 20px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  font-size: 0.9rem;
  color: rgba(245, 244, 240, 0.6);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--signal); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.8rem;
  color: rgba(245, 244, 240, 0.4);
}
.footer-credit a {
  color: var(--signal);
  font-weight: 600;
  transition: opacity 0.2s;
}
.footer-credit a:hover { opacity: 0.8; }

/* ============== WHATSAPP FLUTUANTE ============== */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: var(--whatsapp);
  color: var(--bone);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  z-index: 60;
  transition: all 0.3s var(--ease-out);
}
.whatsapp-float::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: var(--whatsapp);
  opacity: 0.3;
  animation: pulse 2s ease-in-out infinite;
  z-index: -1;
}
.whatsapp-float:hover {
  transform: scale(1.08);
  background: var(--whatsapp-dark);
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.2); opacity: 0; }
}

/* ============== LIGHTBOX ============== */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(15, 17, 21, 0.96);
  z-index: 200;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 40px 24px;
  backdrop-filter: blur(8px);
}
.lightbox.active { display: flex; animation: fadeIn 0.3s; }
.lightbox-stage {
  position: relative;
  flex: 1;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}
.lightbox-img {
  max-width: 88vw;
  max-height: 72vh;
  object-fit: contain;
  border-radius: 2px;
}
.lightbox-counter {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--bone);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  background: rgba(0,0,0,0.55);
  padding: 5px 12px;
  border-radius: 20px;
  pointer-events: none;
}
.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: rgba(255,255,255,0.08);
  color: var(--bone);
  border: 1px solid rgba(255,255,255,0.15);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  cursor: pointer;
  z-index: 2;
}
.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover { background: var(--signal); border-color: var(--signal); }
.lightbox-close { top: 24px; right: 24px; }
.lightbox-prev { left: 24px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 24px; top: 50%; transform: translateY(-50%); }
.lightbox-caption {
  color: var(--bone);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  background: rgba(0,0,0,0.6);
  padding: 8px 16px;
  margin-top: 16px;
  text-align: center;
}
.lightbox-thumbs {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  max-width: 90vw;
  overflow-x: auto;
  padding: 4px;
  scrollbar-width: thin;
}
.lightbox-thumbs::-webkit-scrollbar { height: 6px; }
.lightbox-thumbs::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.25); border-radius: 3px; }
.lb-thumb {
  flex: 0 0 auto;
  width: 72px;
  height: 54px;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 2px;
  overflow: hidden;
  cursor: pointer;
  opacity: 0.55;
  transition: opacity 0.2s, border-color 0.2s;
  background: var(--ink);
}
.lb-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.lb-thumb:hover { opacity: 0.85; }
.lb-thumb.active { opacity: 1; border-color: var(--signal); }

@media (max-width: 640px) {
  .lightbox { padding: 20px 12px 16px; }
  .lightbox-img { max-width: 94vw; max-height: 64vh; }
  .lightbox-close { top: 14px; right: 14px; width: 42px; height: 42px; }
  .lightbox-prev { left: 8px; width: 42px; height: 42px; }
  .lightbox-next { right: 8px; width: 42px; height: 42px; }
  .lb-thumb { width: 56px; height: 42px; }
  .lightbox-caption { font-size: 0.72rem; }
}

/* ============== ANIMAÇÕES ============== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  from { transform: translateY(110%); }
  to { transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Scroll reveal: elementos escondidos antes de entrar na tela */
/* Importante: a classe .reveal é adicionada via JS, então elementos
   sem JS continuam visíveis (acessibilidade + fallback) */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============== RESPONSIVO ============== */
@media (max-width: 1024px) {
  .nav-desktop { display: none; }
  .btn-header { display: none; }
  .nav-toggle { display: flex; margin-left: auto; }

  .sobre-grid,
  .solucoes-grid,
  .localizacao-grid,
  .contato-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .obras-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .section-indicator { display: none; }
  .diferenciais-grid { grid-template-columns: repeat(2, 1fr); }
  .estrutura-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .estrutura-card-large .estrutura-image { aspect-ratio: 16 / 10; }
}

@media (max-width: 640px) {
  .hero { min-height: 100vh; padding: 100px 0 60px; }
  .hero-meta { flex-wrap: wrap; gap: 20px; padding: 24px var(--padding-x); }
  .meta-divider { display: none; }
  .hero-scroll { display: none; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }

  .numbers-grid { grid-template-columns: 1fr 1fr; }

  .obras-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .convenios-list { grid-template-columns: repeat(2, 1fr); }
  .convenios-band { padding: 24px 20px; }

  .diferenciais-grid { grid-template-columns: 1fr; }

  .info-blocks { grid-template-columns: 1fr; gap: 24px; }

  .form-row-double { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .whatsapp-float { width: 54px; height: 54px; bottom: 18px; right: 18px; }
  .whatsapp-float svg { width: 24px; height: 24px; }

  .solucao-body { padding: 28px 24px; }
}

@media (max-width: 420px) {
  .cidades-pills span { font-size: 0.75rem; padding: 5px 10px; }
}