@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Montserrat:wght@400;500;600;700;800&display=swap');

:root {
  /* Colors */
  --primary-color: #040f3d;
  --secondary-color: #061654;
  --accent-color: #A88753;
  --accent-light: #c9a96e;
  --bg-color: #ffffff;
  --bg-light: #f8f9fa;
  --bg-warm: #f5f0eb;
  --text-main: #333333;
  --text-muted: #666666;
  --white: #ffffff;
  --border-subtle: rgba(0,0,0,0.06);

  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --container-width: 1200px;
  --section-padding: 120px 0;
  --section-padding-mobile: 70px 0;

  /* Transitions */
  --transition-fast: 0.3s ease;
  --transition-mid: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background-color: var(--bg-color);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul { list-style: none; }

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

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--primary-color);
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

p { margin-bottom: 1rem; }

.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent-color);
  margin-bottom: 1rem;
  position: relative;
  padding-left: 3rem;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 2rem;
  height: 1px;
  background-color: var(--accent-color);
}

.section-description {
  max-width: 600px;
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1.8;
}

.text-center .section-description {
  margin: 0 auto;
}

/* ========== UTILITIES ========== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: var(--section-padding);
  position: relative;
}

.text-center { text-align: center; }

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.1rem 2.5rem;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  border-radius: 0;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--accent-light);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(168, 135, 83, 0.3);
}

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

.btn-outline:hover {
  background-color: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-white {
  background-color: var(--white);
  color: var(--primary-color);
}

.btn-white:hover {
  background-color: var(--accent-color);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.btn-whatsapp {
  background-color: #25D366;
  color: var(--white);
}

.btn-whatsapp:hover {
  background-color: #1ebe5d;
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 18px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.15-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.149-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.435 9.884-9.881 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413z'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}

.btn-arrow::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* ========== HEADER ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.header .container {
  max-width: 100%;
  padding: 0 5%;
}

.header.scrolled {
  padding: 0.5rem 0;
  background-color: rgba(255, 255, 255, 0.99);
  box-shadow: 0 4px 30px rgba(0,0,0,0.06);
}

.header.scrolled .logo img {
  height: 64px;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 100px;
  max-height: 100px;
  width: auto;
  object-fit: contain;
  object-position: left center;
  transition: height var(--transition-fast);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  position: relative;
  padding: 0.5rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--accent-color);
  transition: width var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.btn-primary {
  color: var(--white);
  padding: 0.85rem 2rem;
}

.nav-links a.btn-primary::after {
  display: none;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger {
  display: block;
  width: 28px;
  height: 2px;
  background-color: var(--primary-color);
  position: relative;
  transition: background-color var(--transition-fast);
}

.hamburger::before, .hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
  transition: transform var(--transition-fast);
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }

/* ========== HERO SECTION (SPLIT SCREEN) ========== */
.hero-split {
  display: flex;
  min-height: 100vh;
  padding-top: 0;
  background-color: var(--primary-color);
  color: var(--white);
  overflow: hidden;
}

.hero-content {
  flex: 0 0 35%;
  padding: 4rem 5%;
  padding-top: calc(120px + 2rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.hero-content .hero-subtitle {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hero-content .hero-subtitle::before {
  content: '';
  width: 2.5rem;
  height: 1px;
  background-color: var(--accent-color);
}

.hero-content h1 {
  color: var(--white);
  margin-bottom: 1.5rem;
  font-size: clamp(2rem, 3vw, 3.2rem);
  line-height: 1.1;
}

.hero-content h1 em {
  font-style: normal;
  color: var(--accent-color);
}

.hero-content p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 2.5rem;
  max-width: 100%;
  line-height: 1.8;
}

.hero-carousel {
  flex: 0 0 65%;
  position: relative;
  min-height: 500px;
}

.carousel-track {
  width: 100%;
  height: 100%;
  position: relative;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  transform: scale(1.03);
}

.carousel-slide.active {
  opacity: 1;
  z-index: 1;
  transform: scale(1);
  transition: opacity 1s ease-in-out, transform 6s ease-out;
}

.carousel-counter {
  position: absolute;
  bottom: 2.5rem;
  left: 2.5rem;
  z-index: 10;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.8);
}

.carousel-counter .current {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
}

.carousel-controls {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  z-index: 10;
  display: flex;
  gap: 0.5rem;
}

.carousel-btn {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  width: 55px;
  height: 55px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 0;
  transition: all var(--transition-fast);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  backdrop-filter: blur(10px);
}

.carousel-btn:hover {
  background: var(--accent-color);
  border-color: var(--accent-color);
}

.carousel-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background-color: var(--accent-color);
  z-index: 10;
  transition: width 5s linear;
  width: 0%;
}

/* ========== STATS BAR ========== */
.stats-bar {
  background-color: var(--white);
  padding: 0;
  position: relative;
  z-index: 5;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border-subtle);
}

.stat-item {
  padding: 3rem 2rem;
  text-align: center;
  border-right: 1px solid var(--border-subtle);
  transition: background-color var(--transition-fast);
}

.stat-item:last-child {
  border-right: none;
}

.stat-item:hover {
  background-color: var(--bg-warm);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary-color);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-number .accent {
  color: var(--accent-color);
}

.stat-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* ========== SOLUTIONS SECTION ========== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 4rem;
}

.solution-card {
  position: relative;
  padding: 0;
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-mid);
  overflow: hidden;
  background: var(--white);
  display: flex;
  flex-direction: column;
}

.solution-card-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  flex-shrink: 0;
}

.solution-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.solution-card:hover .solution-card-image img {
  transform: scale(1.06);
}

.solution-card-body {
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--accent-color);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-mid);
}

.solution-card:hover::before {
  transform: scaleX(1);
}

.solution-card:hover {
  background-color: var(--bg-warm);
  transform: translateY(-5px);
  box-shadow: 0 25px 50px rgba(0,0,0,0.06);
}

.solution-number {
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: 800;
  color: rgba(0,0,0,0.04);
  line-height: 1;
  margin-bottom: 1.5rem;
}

.solution-card h3 {
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.solution-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.solution-card-body .solution-link {
  margin-top: auto;
}

/* ========== CONTACT MAP ========== */
.contact-map-section {
  background-color: var(--bg-light);
  padding-bottom: 5rem;
}

.contact-map {
  width: 100%;
  min-height: 420px;
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  background: var(--white);
}

.contact-map iframe {
  width: 100%;
  height: 420px;
  border: 0;
  display: block;
}

.map-link-wrap {
  margin-top: 1.5rem;
}

/* ========== WHATSAPP FLOAT ========== */
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 998;
  width: 58px;
  height: 58px;
  background-color: #25D366;
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.45);
  transition: transform var(--transition-fast), opacity var(--transition-fast), visibility var(--transition-fast);
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
  fill: currentColor;
}

.whatsapp-float:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.5);
}

.whatsapp-float.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.solution-link {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-color);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap var(--transition-fast);
}

.solution-link:hover {
  gap: 1rem;
}

/* ========== IMAGE SHOWCASE (Full-Width) ========== */
.image-showcase {
  position: relative;
  height: 70vh;
  min-height: 500px;
  overflow: hidden;
}

.image-showcase img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-showcase-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(17,17,17,0.85) 0%, rgba(17,17,17,0.4) 50%, transparent 100%);
  display: flex;
  align-items: center;
}

.image-showcase-content {
  padding: 0 5%;
  max-width: 550px;
  color: var(--white);
}

.image-showcase-content h2 {
  color: var(--white);
  margin-bottom: 1.5rem;
  font-size: clamp(2rem, 3vw, 2.8rem);
}

.image-showcase-content p {
  color: rgba(255,255,255,0.7);
  margin-bottom: 2rem;
  font-size: 1.05rem;
  line-height: 1.8;
}

/* ========== DIFFERENTIATORS SECTION ========== */
.differentiators {
  background-color: var(--primary-color);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.differentiators::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  border: 1px solid rgba(168, 135, 83, 0.08);
  border-radius: 50%;
}

.differentiators::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 400px;
  height: 400px;
  border: 1px solid rgba(168, 135, 83, 0.05);
  border-radius: 50%;
}

.differentiators h2, .differentiators h3 {
  color: var(--white);
}

.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 4rem;
}

.diff-item {
  padding: 3rem;
  border: 1px solid rgba(255,255,255,0.06);
  position: relative;
  transition: all var(--transition-fast);
}

.diff-item:hover {
  background-color: rgba(255,255,255,0.03);
}

.diff-icon {
  width: 50px;
  height: 50px;
  border: 1px solid var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
  color: var(--accent-color);
}

.diff-item h3 {
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.diff-item p {
  color: rgba(255,255,255,0.5);
  font-size: 0.95rem;
  line-height: 1.8;
}

.diff-item .values-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem 1.5rem;
}

.diff-item .values-list li {
  color: rgba(255,255,255,0.55);
  font-size: 0.95rem;
  line-height: 1.6;
  position: relative;
  padding-left: 1rem;
}

.diff-item .values-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--accent-color);
}

/* ========== MÉTODOS CONSTRUTIVOS ========== */
.construction-methods {
  background-color: var(--bg-light);
}

.construction-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 4rem;
}

.construction-card {
  text-align: center;
}

.construction-card-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 2px;
  margin-bottom: 1.5rem;
  box-shadow: 0 12px 40px rgba(4, 15, 61, 0.12);
}

.construction-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.construction-card:hover .construction-card-image img {
  transform: scale(1.04);
}

.construction-card h3 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
  color: var(--primary-color);
}

.construction-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  max-width: 320px;
  margin: 0 auto;
}

/* ========== PROCESS / TIMELINE ========== */
.process-section {
  background-color: var(--bg-warm);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 4rem;
  position: relative;
}

.process-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background-color: var(--accent-color);
  opacity: 0.3;
}

.process-step {
  text-align: center;
  padding: 0 2rem;
  position: relative;
}

.process-number {
  width: 80px;
  height: 80px;
  border: 2px solid var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-color);
  background: var(--bg-warm);
  position: relative;
  z-index: 2;
  transition: all var(--transition-fast);
}

.process-step:hover .process-number {
  background: var(--accent-color);
  color: var(--white);
}

.process-step h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.process-step p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== GALLERY PREVIEW ========== */
.gallery-preview {
  background-color: var(--bg-light);
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 3rem 0;
}

.preview-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  cursor: pointer;
}

.preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1), filter var(--transition-fast);
}

.preview-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17,17,17,0.6) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.preview-item:hover::after {
  opacity: 1;
}

.preview-item:hover img {
  transform: scale(1.08);
}

.preview-item-label {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  z-index: 2;
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-fast);
}

.preview-item:hover .preview-item-label {
  opacity: 1;
  transform: translateY(0);
}

/* ========== ABOUT / STRUCTURE ========== */
.about-section {
  overflow: hidden;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
}

.about-image-accent {
  position: absolute;
  bottom: -2rem;
  right: -2rem;
  width: 60%;
  height: 60%;
  border: 2px solid var(--accent-color);
  z-index: -1;
}

.about-text h2 {
  margin-bottom: 1.5rem;
}

.about-text p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: 1.5rem;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.about-feature-icon {
  color: var(--accent-color);
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.about-feature span {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-color);
}

/* ========== CTA BAND ========== */
.cta-band {
  background-color: var(--accent-color);
  padding: 4rem 0;
  text-align: center;
}

.cta-band h2 {
  color: var(--white);
  margin-bottom: 1rem;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.cta-band p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

/* ========== QUEM SOMOS PAGE ========== */
.about-hero {
  padding-top: 160px;
  padding-bottom: 80px;
  background-color: var(--primary-color);
  color: var(--white);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.about-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../img/infra-corte.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  filter: grayscale(1);
  z-index: 1;
}

.about-hero .container {
  position: relative;
  z-index: 2;
}

.about-hero h1 {
  color: var(--white);
  margin-bottom: 1.5rem;
}

.about-hero p {
  color: rgba(255, 255, 255, 0.7);
  max-width: 700px;
  margin: 0 auto;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 4rem;
}

.value-card {
  padding: 3rem 2rem;
  background: var(--bg-light);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.value-card:hover {
  background: var(--white);
  border-color: var(--accent-color);
  transform: translateY(-5px);
}

.value-icon {
  font-size: 2.5rem;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
}

.value-card h3 {
  margin-bottom: 1rem;
}

.value-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 0;
}

.client-centric-section {
  background-color: var(--bg-warm);
}

.client-centric-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 5rem;
  align-items: center;
}

.client-centric-content h2 {
  margin-bottom: 1.5rem;
}

.client-centric-content p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: 1.5rem;
}

.client-centric-image img {
  width: 100%;
  border-radius: 0;
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.infra-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.infra-gallery-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  cursor: pointer;
}

.infra-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.infra-gallery-item:hover img {
  transform: scale(1.06);
}

.infra-gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.infra-gallery-item:hover .infra-gallery-caption {
  opacity: 1;
}

/* ========== PORTFOLIO PAGE ========== */
.portfolio-header {
  padding-top: 160px;
  padding-bottom: 50px;
  background-color: var(--bg-light);
  text-align: center;
}

.portfolio-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 3rem 0;
}

.filter-btn {
  background: none;
  border: 1px solid #ddd;
  padding: 0.6rem 1.5rem;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border-radius: 0;
  letter-spacing: 0.05em;
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
}

/* Masonry Grid */
.masonry-grid {
  column-count: 3;
  column-gap: 1.5rem;
  padding-bottom: 5rem;
}

.masonry-item {
  position: relative;
  overflow: hidden;
  break-inside: avoid;
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.masonry-item.loaded {
  opacity: 1;
  transform: translateY(0);
}

.masonry-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.masonry-item:hover img {
  transform: scale(1.04);
}

.masonry-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 2.5rem;
  background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
  color: var(--white);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-fast);
}

.masonry-overlay h4 {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.masonry-overlay p {
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
  margin: 0;
}

.masonry-item:hover .masonry-overlay {
  opacity: 1;
  transform: translateY(0);
}

/* ========== CONTACT PAGE ========== */
.contact-section {
  padding-top: 160px;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 3.5rem;
}

.contact-info h3 {
  color: var(--white);
  margin-bottom: 2rem;
}

.info-item {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.info-item:last-of-type {
  border-bottom: none;
}

.info-item h4 {
  font-family: var(--font-heading);
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-color);
}

.info-item p, .info-item a {
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-fast);
}

.info-item a:hover {
  color: var(--accent-color);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary-color);
}

.form-control {
  padding: 1rem 1.25rem;
  border: 1px solid #e0e0e0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background-color: var(--bg-light);
  transition: all var(--transition-fast);
  border-radius: 0;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-color);
  background-color: var(--white);
  box-shadow: 0 0 0 3px rgba(168, 135, 83, 0.1);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

/* ========== FOOTER ========== */
.footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  margin-top: 1.5rem;
  max-width: 350px;
  line-height: 1.8;
}

.footer h4 {
  color: var(--white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-color);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.3);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

/* ========== UTILITIES ========== */
.hidden {
  display: none !important;
}

.pt-0 { padding-top: 0 !important; }

/* ========== ANIMATIONS ========== */
.reveal {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: no-preference) {
  .js-enabled .reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 1s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .js-enabled .reveal.active {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for grid children */
.reveal-stagger > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger > *:nth-child(3) { transition-delay: 0.2s; }
.reveal-stagger > *:nth-child(4) { transition-delay: 0.3s; }

/* Counter animation */
@keyframes countUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== UTILITIES & ENHANCEMENTS ========== */
.section-label--center {
  padding-left: 0;
  text-align: center;
}

.section-label--center::before {
  display: none;
}

.section-label--accent {
  color: var(--accent-color);
}

.section-description--center {
  margin: 0 auto;
}

.section-description--light {
  color: rgba(255, 255, 255, 0.5);
}

.mt-lg { margin-top: 3rem; }

.mb-section { margin-bottom: 4rem; }

.footer-logo {
  height: 60px;
  width: auto;
  filter: brightness(0) invert(1);
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 10001;
  padding: 0.75rem 1.25rem;
  background: var(--accent-color);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.skip-link:focus {
  top: 1rem;
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17, 17, 17, 0.55);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
  z-index: 999;
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

body.menu-open,
body.lightbox-open {
  overflow: hidden;
}

a:focus-visible,
button:focus-visible,
.filter-btn:focus-visible,
.preview-item:focus-visible,
.masonry-item:focus-visible,
.solution-link:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 3px;
}

.icon-svg {
  width: 50px;
  height: 50px;
  border: 1px solid var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent-color);
}

.icon-svg svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
}

.about-section--compact .about-text p:last-of-type {
  margin-bottom: 2rem;
}

.preview-item {
  display: block;
  text-decoration: none;
}

.preview-item:focus-visible {
  outline-offset: -2px;
}

.masonry-item {
  cursor: pointer;
}

.masonry-item:focus-visible {
  outline-offset: -2px;
}

/* ========== LIGHTBOX ========== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 17, 17, 0.92);
}

.lightbox-dialog {
  position: relative;
  z-index: 2;
  width: min(92vw, 1100px);
  max-height: 90vh;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lightbox-figure {
  flex: 1;
  margin: 0;
  text-align: center;
}

.lightbox-image {
  max-width: 100%;
  max-height: 78vh;
  width: auto;
  height: auto;
  object-fit: contain;
  margin: 0 auto;
}

.lightbox-caption {
  margin-top: 1rem;
  color: rgba(255, 255, 255, 0.75);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.lightbox-close {
  position: absolute;
  top: -3rem;
  right: 0;
  background: none;
  border: none;
  color: var(--white);
  font-size: 2.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.25rem;
}

.lightbox-nav {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--white);
  width: 48px;
  height: 48px;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition-fast);
}

.lightbox-nav:hover,
.lightbox-close:hover {
  background: var(--accent-color);
}

/* ========== FORM NOTICE ========== */
.form-hint {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
  padding: 0.75rem 1rem;
  background: var(--bg-light);
  border-left: 3px solid #25D366;
}

.contact-info .btn-whatsapp {
  margin-top: 1.5rem;
}

.info-item a[data-contact="whatsapp"]:not(.btn) {
  font-size: 1.1rem;
  font-weight: 500;
}

.form-notice {
  padding: 1rem 1.25rem;
  background: var(--bg-warm);
  border-left: 3px solid var(--accent-color);
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.form-notice[hidden] {
  display: none;
}

.btn-full {
  width: 100%;
  justify-content: center;
  padding: 1.25rem;
}

.form-legal {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  margin: 0;
}

.form-legal a {
  color: var(--accent-color);
  text-decoration: underline;
}

.info-item--image {
  border-bottom: none;
  margin-top: 1rem;
}

.info-item--image img {
  border-radius: 2px;
  opacity: 0.85;
  width: 100%;
}

.value-card .icon-svg {
  margin-bottom: 1.5rem;
}

/* ========== ERROR PAGE ========== */
.error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 160px 2rem 4rem;
}

.error-page h1 {
  margin-bottom: 1rem;
}

.error-page p {
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto 2rem;
}

.error-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== LEGAL PAGE ========== */
.legal-section {
  padding-top: 160px;
  padding-bottom: 80px;
}

.legal-content {
  max-width: 760px;
  margin: 0 auto;
}

.legal-content h2 {
  margin: 2.5rem 0 1rem;
  font-size: 1.35rem;
}

.legal-content p,
.legal-content li {
  color: var(--text-muted);
  line-height: 1.9;
}

.legal-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1200px) {
  .solutions-grid { grid-template-columns: repeat(3, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
  .process-grid::before { display: none; }
}

@media (max-width: 992px) {
  .hero-split { flex-direction: column; }
  .hero-content {
    flex: auto;
    padding: 3rem 2rem;
    padding-top: calc(120px + 2rem);
    min-height: auto;
  }
  .hero-carousel {
    flex: auto;
    min-height: 50vh;
  }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .solutions-grid { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .construction-grid { grid-template-columns: 1fr; }
  .diff-item .values-list { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-image-accent { display: none; }
  .preview-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-wrapper { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .masonry-grid { column-count: 2; }
  .values-grid { grid-template-columns: 1fr; }
  .client-centric-grid { grid-template-columns: 1fr; gap: 3rem; }
  .infra-gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: var(--section-padding-mobile); }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 400px;
    height: 100vh;
    background-color: var(--white);
    flex-direction: column;
    justify-content: center;
    padding: 2rem;
    box-shadow: -10px 0 40px rgba(0,0,0,0.15);
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .nav-links.active { right: 0; }

  .mobile-menu-btn {
    display: block;
    z-index: 1001;
  }

  .mobile-menu-btn.active .hamburger { background-color: transparent; }
  .mobile-menu-btn.active .hamburger::before { transform: translateY(8px) rotate(45deg); }
  .mobile-menu-btn.active .hamburger::after { transform: translateY(-8px) rotate(-45deg); }

  .preview-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .about-features { grid-template-columns: 1fr; }
  .image-showcase { height: 60vh; }
  .masonry-grid { column-count: 1; }
  .portfolio-header { padding-top: 140px; }
  .contact-section { padding-top: 140px; }
  .about-hero { padding-top: 140px; }
  .legal-section { padding-top: 140px; }
  .error-page { padding-top: 140px; }
  .lightbox-dialog { flex-direction: column; }
  .lightbox-nav { display: none; }
  .infra-gallery-grid { grid-template-columns: 1fr; }
  .whatsapp-float { bottom: 1rem; right: 1rem; width: 52px; height: 52px; }
  .whatsapp-float svg { width: 26px; height: 26px; }
  .contact-map iframe { height: 300px; }
  .contact-map { min-height: 300px; }
}