/* 
  =========================================
  POLIMIX CONCRETO - DESIGN SYSTEM & STYLES
  =========================================
  Autor: Antigravity
  Estilo: Moderno, Corporativo Premium, Fluido
*/

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

/* --- VARIÁVEIS DO SISTEMA (DESIGN TOKENS) --- */
:root {
  /* Cores Base Escuras (Premium Corporate Dark) */
  --bg-dark-deep: #090D16;
  --bg-dark-card: rgba(17, 24, 39, 0.75);
  --bg-dark-card-solid: #111827;
  --bg-dark-light: #1F2937;
  
  /* Cores Base Claras (Clean Light) */
  --bg-light-deep: #F8FAFC;
  --bg-light-card: #FFFFFF;
  --bg-light-soft: #F1F5F9;
  --border-light: #E2E8F0;
  
  /* Cores de Marca & Acentos */
  --color-primary: #2563EB;
  --color-primary-hover: #1D4ED8;
  --color-secondary: #06B6D4;
  --color-accent: #EA580C; /* Laranja Metálico CTA */
  --color-accent-hover: #C2410C;
  --color-success: #10B981;
  
  /* Cores de Texto */
  --text-dark-primary: #0F172A;
  --text-dark-secondary: #475569;
  --text-dark-muted: #64748B;
  --text-light-primary: #F8FAFC;
  --text-light-secondary: #CBD5E1;
  --text-light-muted: #94A3B8;

  /* Fontes */
  --font-title: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Sombras (Shadows) */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-premium: 0 20px 25px -5px rgba(37, 99, 235, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transições e Curvas (Elesys curves) */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  
  --navbar-height: 80px;
}

/* --- RESET & ESTRUTURA --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  color: var(--text-dark-primary);
  background-color: var(--bg-light-deep);
  font-family: var(--font-body);
}

body {
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  font-weight: 700;
  line-height: 1.25;
}

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

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
  outline: none;
}

/* --- SCROLLBAR CUSTOMIZADA --- */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-light-soft);
}
::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94A3B8;
}

/* --- COMPONENTES GLOBAIS --- */

/* Seções */
.section {
  padding: 100px 0;
  position: relative;
}
.section-dark {
  background-color: var(--bg-dark-deep);
  color: var(--text-light-primary);
}
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Títulos Premium */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px auto;
}
.section-tag {
  font-family: var(--font-title);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  margin-bottom: 12px;
}
.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.section-dark .section-title {
  color: var(--text-light-primary);
}
.section-desc {
  font-size: 1.125rem;
  color: var(--text-dark-secondary);
}
.section-dark .section-desc {
  color: var(--text-light-secondary);
}

/* Botões Modernos */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  gap: 8px;
  border: 2px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #1D4ED8);
  color: white;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover {
  background: rgba(37, 99, 235, 0.05);
  transform: translateY(-2px);
}
.btn-accent {
  background: linear-gradient(135deg, var(--color-accent), #C2410C);
  color: white;
  box-shadow: 0 4px 14px rgba(234, 88, 12, 0.3);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(234, 88, 12, 0.4);
}
.btn-light {
  background: white;
  color: var(--text-dark-primary);
  box-shadow: var(--shadow-md);
}
.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.btn-dark {
  background: var(--bg-dark-light);
  color: white;
  border-color: rgba(255,255,255,0.1);
}
.btn-dark:hover {
  background: var(--bg-dark-deep);
  transform: translateY(-2px);
}

/* Badge Decorativo */
.glass-badge {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* --- HEADER / NAVBAR --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  z-index: 1000;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
}
.header.scrolled {
  background-color: rgba(9, 13, 22, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  height: 70px;
}
.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
}
.logo span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.logo-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--border-radius-sm);
  color: white;
}

/* Nav Menu Desktop */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-family: var(--font-title);
  font-weight: 500;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  padding: 8px 0;
}
.nav-link:hover, .nav-link.active {
  color: white;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  transition: var(--transition-fast);
}
.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 1001;
  padding: 4px;
}
.mobile-toggle span {
  width: 26px;
  height: 3px;
  background-color: white;
  border-radius: 2px;
  transition: var(--transition-fast);
}
.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}
.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}
.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -7px);
}

/* Mobile Nav Drawer */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  height: 100vh;
  background-color: var(--bg-dark-deep);
  border-left: 1px solid rgba(255,255,255,0.06);
  z-index: 999;
  padding: 100px 32px 32px 32px;
  display: flex;
  flex-direction: column;
  gap: 40px;
  transition: right var(--transition-smooth);
}
.mobile-nav.active {
  right: 0;
}
.mobile-nav .nav-menu {
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}
.mobile-nav .nav-link {
  font-size: 1.15rem;
}

/* --- HERO SLIDER --- */
.hero {
  position: relative;
  height: 100vh;
  background-color: var(--bg-dark-deep);
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity var(--transition-slow);
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
}
.hero-slide.active {
  opacity: 1;
}
.hero-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(9, 13, 22, 0.8) 0%, rgba(9, 13, 22, 0.45) 50%, rgba(9, 13, 22, 0.9) 100%);
  z-index: 2;
}
.hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
}
.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  color: white;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}
.hero-title span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-description {
  font-size: 1.25rem;
  color: var(--text-light-secondary);
  margin-bottom: 40px;
  max-width: 600px;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Slider Controls */
.hero-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 12px;
}
.hero-dot {
  width: 32px;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.25);
  border-radius: 2px;
  cursor: pointer;
  transition: var(--transition-fast);
}
.hero-dot.active {
  background-color: var(--color-primary);
  width: 48px;
}

/* --- BANNER DE DESTAQUE DEBAIXO DO HERO --- */
.hero-highlights {
  margin-top: -80px;
  position: relative;
  z-index: 20;
}
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.highlight-card {
  background: var(--bg-dark-card);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 40px;
  border-radius: var(--border-radius-md);
  color: white;
  transition: all var(--transition-smooth);
  box-shadow: var(--shadow-lg);
}
.highlight-card:hover {
  transform: translateY(-8px);
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: var(--shadow-premium);
}
.highlight-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--border-radius-sm);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(6, 182, 212, 0.15));
  border: 1px solid rgba(37, 99, 235, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--color-secondary);
}
.highlight-card:hover .highlight-icon {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  transform: scale(1.05);
  transition: all var(--transition-fast);
}
.highlight-title {
  font-size: 1.35rem;
  margin-bottom: 12px;
}
.highlight-desc {
  color: var(--text-light-secondary);
  font-size: 0.95rem;
}

/* --- CALCULADORA DE CONCRETO --- */
.calculator-section {
  background: var(--bg-light-soft);
}
.calculator-box {
  background: var(--bg-light-card);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
}
.calc-inputs-part {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.structure-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.structure-option {
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: 16px 8px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-title);
  font-weight: 600;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
}
.structure-option svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-dark-secondary);
  transition: var(--transition-fast);
}
.structure-option:hover {
  background: var(--bg-light-soft);
  border-color: #CBD5E1;
}
.structure-option.active {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.05);
  color: var(--color-primary);
}
.structure-option.active svg {
  stroke: var(--color-primary);
}

.calc-inputs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.calc-input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.calc-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-dark-secondary);
}
.calc-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.calc-field {
  width: 100%;
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: 12px 32px 12px 14px;
  font-weight: 500;
  font-size: 1rem;
  transition: var(--transition-fast);
}
.calc-field:focus {
  border-color: var(--color-primary);
  background: white;
}
.calc-unit {
  position: absolute;
  right: 14px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-dark-muted);
  pointer-events: none;
}

.calc-results-part {
  background: var(--bg-dark-deep);
  color: white;
  border-radius: var(--border-radius-md);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.calc-res-title {
  font-family: var(--font-title);
  font-size: 1.15rem;
  color: var(--text-light-secondary);
  margin-bottom: 12px;
}
.calc-res-value {
  font-family: var(--font-title);
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
  color: white;
  margin-bottom: 8px;
  background: linear-gradient(135deg, white, var(--text-light-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.calc-res-unit {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 24px;
}
.calc-res-details {
  font-size: 0.875rem;
  color: var(--text-light-secondary);
  margin-bottom: 32px;
  background: rgba(255, 255, 255, 0.04);
  padding: 12px 20px;
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.05);
  width: 100%;
}

/* --- SOBRE NÓS / INSTITUCIONAL --- */
.about-section {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.about-image-wrapper {
  position: relative;
}
.about-img-main {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 2;
  position: relative;
}
.about-img-badge {
  position: absolute;
  bottom: -30px;
  right: -30px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  padding: 24px 32px;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 3;
  font-family: var(--font-title);
}
.about-badge-num {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1;
}
.about-badge-txt {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.9;
}
.about-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.about-paragraph {
  font-size: 1.05rem;
  color: var(--text-dark-secondary);
}
.about-features-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 10px;
}
.about-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-dark-primary);
}
.about-feature-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-success);
}

/* --- SEÇÃO VÍDEO INSTITUCIONAL --- */
.video-section {
  background: linear-gradient(180deg, var(--bg-dark-deep) 0%, #111827 100%);
  text-align: center;
  overflow: hidden;
}
.video-wrapper {
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  cursor: pointer;
  aspect-ratio: 16/9;
}
.video-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}
.video-wrapper:hover .video-thumbnail {
  transform: scale(1.02);
}
.video-overlay-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.4);
  transition: all var(--transition-fast);
  z-index: 3;
}
.video-overlay-play svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
  margin-left: 4px;
}
.video-wrapper:hover .video-overlay-play {
  background: var(--color-secondary);
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 10px 25px rgba(6, 182, 212, 0.4);
}
.video-section-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 60px;
  text-align: left;
}
.video-card-info {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
  padding: 32px;
  border-radius: var(--border-radius-md);
  display: flex;
  gap: 20px;
}
.video-card-icon {
  width: 48px;
  height: 48px;
  background: rgba(37,99,235,0.1);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}
.video-card-icon svg {
  width: 24px;
  height: 24px;
}
.video-card-title {
  font-size: 1.15rem;
  margin-bottom: 8px;
}
.video-card-desc {
  color: var(--text-light-secondary);
  font-size: 0.9rem;
}

/* --- PÁGINA SOBRE NÓS --- */
.timeline-section {
  background: var(--bg-light-card);
}
.timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--border-light);
  transform: translateX(-50%);
}
.timeline-item {
  position: relative;
  margin-bottom: 60px;
  width: 50%;
  padding: 0 40px;
}
.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}
.timeline-item:nth-child(even) {
  left: 50%;
}
.timeline-dot {
  position: absolute;
  top: 6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: white;
  border: 4px solid var(--color-primary);
  z-index: 5;
}
.timeline-item:nth-child(odd) .timeline-dot {
  right: -10px;
}
.timeline-item:nth-child(even) .timeline-dot {
  left: -10px;
}
.timeline-year {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.timeline-content {
  background: var(--bg-light-soft);
  padding: 24px;
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-sm);
}

.mvv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 40px;
}
.mvv-card {
  background: var(--bg-light-card);
  border: 1px solid var(--border-light);
  padding: 40px;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-smooth);
}
.mvv-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}
.mvv-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(37,99,235,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--color-primary);
}
.mvv-title {
  font-size: 1.4rem;
  margin-bottom: 12px;
}
.mvv-desc {
  color: var(--text-dark-secondary);
  font-size: 0.95rem;
}

.quality-section {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.quality-pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.pillar-card {
  background: var(--bg-light-card);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition-fast);
}
.pillar-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}
.pillar-icon {
  color: var(--color-primary);
  width: 32px;
  height: 32px;
}
.pillar-title {
  font-size: 1.05rem;
}
.pillar-desc {
  color: var(--text-dark-secondary);
  font-size: 0.85rem;
}

/* --- PÁGINA SOLUÇÕES (TABS & ACORDEÕES) --- */
.solutions-page-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  margin-top: 40px;
}
.vertical-tabs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--bg-light-card);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  padding: 16px;
  height: fit-content;
  position: sticky;
  top: 100px;
}
.vertical-tab-btn {
  width: 100%;
  text-align: left;
  padding: 16px 20px;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-dark-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.vertical-tab-btn:hover {
  background: var(--bg-light-soft);
  color: var(--text-dark-primary);
}
.vertical-tab-btn.active {
  background: var(--color-primary);
  color: white;
}
.tab-content {
  display: none;
  animation: fadeIn 0.4s ease;
}
.tab-content.active {
  display: block;
}
.tab-content-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--bg-light-card);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}
.tab-content-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.tab-content-title {
  font-size: 1.8rem;
}
.tab-content-desc {
  color: var(--text-dark-secondary);
}
.tab-content-image {
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

/* Acordeão de Tipos de Concreto */
.accordion-wrapper {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.accordion-item {
  background: var(--bg-light-card);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  transition: var(--transition-fast);
}
.accordion-item:hover {
  box-shadow: var(--shadow-md);
}
.accordion-item.active {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}
.accordion-header {
  padding: 24px 32px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.15rem;
}
.accordion-title-block {
  display: flex;
  align-items: center;
  gap: 16px;
}
.accordion-title-icon {
  width: 36px;
  height: 36px;
  background: rgba(37,99,235,0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}
.accordion-header-arrow {
  width: 24px;
  height: 24px;
  transition: transform var(--transition-fast);
}
.accordion-item.active .accordion-header-arrow {
  transform: rotate(180deg);
  color: var(--color-primary);
}
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth) ease-out;
}
.accordion-item.active .accordion-body {
  max-height: 500px; /* Altere dinamicamente no JS */
}
.accordion-content {
  padding: 0 32px 32px 84px;
  color: var(--text-dark-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Manual da Concretagem */
.manual-box {
  background: linear-gradient(135deg, var(--bg-dark-deep), var(--bg-dark-light));
  color: white;
  border-radius: var(--border-radius-lg);
  padding: 60px;
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 60px;
  align-items: center;
  border: 1px solid rgba(255,255,255,0.05);
}
.manual-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.manual-title {
  font-size: 2rem;
}
.manual-desc {
  color: var(--text-light-secondary);
}
.manual-button-zone {
  display: flex;
  justify-content: center;
}

/* --- PÁGINA OBRAS (FILTRAGEM & GRID) --- */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.filter-btn {
  padding: 10px 24px;
  border-radius: 50px;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.9rem;
  background: var(--bg-light-soft);
  color: var(--text-dark-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
  border: 1px solid var(--border-light);
}
.filter-btn:hover {
  background: #CBD5E1;
  color: var(--text-dark-primary);
}
.filter-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(37,99,235,0.25);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 32px;
}
.portfolio-card {
  background: var(--bg-light-card);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
}
.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}
.portfolio-card-img-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.portfolio-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}
.portfolio-card:hover .portfolio-card-img {
  transform: scale(1.05);
}
.portfolio-card-category {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(9, 13, 22, 0.7);
  backdrop-filter: blur(8px);
  color: white;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}
.portfolio-card-info {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-grow: 1;
}
.portfolio-card-title {
  font-size: 1.25rem;
}
.portfolio-card-details {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-dark-secondary);
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}
.portfolio-detail-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.portfolio-detail-label {
  font-weight: 600;
  color: var(--text-dark-muted);
}
.portfolio-detail-val {
  font-weight: 500;
}

/* --- PÁGINA CONTATO & TRABALHE CONOSCO --- */
.contact-page-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
}
.contact-sidebar {
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.contact-info-card {
  display: flex;
  gap: 20px;
  background: var(--bg-light-card);
  padding: 24px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-light);
}
.contact-info-icon {
  width: 48px;
  height: 48px;
  background: rgba(37,99,235,0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}
.contact-info-icon svg {
  width: 24px;
  height: 24px;
}
.contact-info-title {
  font-size: 1.05rem;
  margin-bottom: 4px;
}
.contact-info-value {
  color: var(--text-dark-secondary);
  font-size: 0.9rem;
}

/* Formulário Duplo Deslizante */
.contact-form-container {
  background: var(--bg-light-card);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}
.contact-form-tabs {
  display: flex;
  background: var(--bg-light-soft);
  padding: 6px;
  border-radius: var(--border-radius-sm);
  margin-bottom: 32px;
}
.contact-form-tab-btn {
  flex: 1;
  padding: 12px;
  text-align: center;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}
.contact-form-tab-btn.active {
  background: white;
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.contact-form-panel {
  display: none;
  animation: fadeIn 0.4s ease;
}
.contact-form-panel.active {
  display: block;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}
.form-group-full {
  grid-column: span 2;
}
.form-field-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-dark-secondary);
}
.form-input {
  width: 100%;
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: 14px 16px;
  font-size: 0.95rem;
  background: var(--bg-light-soft);
  transition: var(--transition-fast);
}
.form-input:focus {
  border-color: var(--color-primary);
  background: white;
}
.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* File Upload Premium Zone */
.file-upload-zone {
  border: 2px dashed var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-fast);
  background: var(--bg-light-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.file-upload-zone:hover {
  border-color: var(--color-primary);
  background: rgba(37,99,235,0.02);
}
.file-upload-icon {
  width: 36px;
  height: 36px;
  color: var(--text-dark-muted);
}
.file-upload-text {
  font-size: 0.85rem;
  color: var(--text-dark-secondary);
}
.file-upload-input {
  display: none;
}

/* Mapas de Localização */
.maps-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 60px;
}
.map-card {
  background: var(--bg-light-card);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.map-iframe {
  width: 100%;
  height: 250px;
  border: none;
  display: block;
}
.map-info {
  padding: 20px;
}
.map-title {
  font-size: 1.05rem;
  margin-bottom: 6px;
}
.map-desc {
  font-size: 0.85rem;
  color: var(--text-dark-secondary);
}

/* --- FOOTER COMPLETO --- */
.footer {
  background-color: var(--bg-dark-deep);
  color: var(--text-light-primary);
  padding: 80px 0 30px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.footer-desc {
  color: var(--text-light-secondary);
  font-size: 0.95rem;
}
.social-links {
  display: flex;
  gap: 12px;
}
.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: var(--transition-fast);
}
.social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.footer-title {
  font-size: 1.2rem;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}
.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--color-primary);
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.footer-link {
  color: var(--text-light-secondary);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-link:hover {
  color: white;
  transform: translateX(4px);
}
.footer-info-item {
  display: flex;
  gap: 12px;
  color: var(--text-light-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 16px;
}
.footer-info-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-light-muted);
}

/* --- WHATSAPP FLUTUANTE PREMIUM --- */
.whatsapp-widget {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
}
.whatsapp-btn {
  width: 60px;
  height: 60px;
  background-color: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  cursor: pointer;
  transition: all var(--transition-smooth);
  position: relative;
}
.whatsapp-btn:hover {
  transform: scale(1.05) rotate(5deg);
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.5);
}
.whatsapp-btn svg {
  width: 32px;
  height: 32px;
}
.whatsapp-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 18px;
  height: 18px;
  background-color: var(--color-accent);
  border-radius: 50%;
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid white;
}

/* Chat Pop-up */
.whatsapp-popup {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 360px;
  background: white;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transform: translateY(20px) scale(0.95);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-smooth);
}
.whatsapp-popup.active {
  transform: translateY(0) scale(1);
  opacity: 1;
  visibility: visible;
}
.wa-popup-header {
  background: #075E54;
  color: white;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.wa-popup-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid white;
  background: #111827;
  overflow: hidden;
}
.wa-popup-user {
  display: flex;
  flex-direction: column;
}
.wa-popup-name {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1rem;
}
.wa-popup-status {
  font-size: 0.75rem;
  opacity: 0.85;
}
.wa-popup-body {
  background: #E5DDD5;
  padding: 24px;
  max-height: 240px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.wa-message {
  background: white;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.85rem;
  color: var(--text-dark-primary);
  max-width: 85%;
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
  position: relative;
}
.wa-message::before {
  content: '';
  position: absolute;
  top: 10px;
  left: -8px;
  border: 4px solid transparent;
  border-right-color: white;
}
.wa-msg-time {
  font-size: 0.65rem;
  color: var(--text-dark-muted);
  text-align: right;
  margin-top: 4px;
}
.wa-popup-footer {
  padding: 16px 20px;
  background: var(--bg-light-soft);
  display: flex;
}
.wa-popup-btn {
  width: 100%;
  background-color: #25D366;
  color: white;
  font-family: var(--font-title);
  font-weight: 700;
  padding: 12px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 4px 10px rgba(37, 211, 102, 0.25);
}
.wa-popup-btn:hover {
  background-color: #128C7E;
}

/* --- ANIMAÇÕES DE SCROLL --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.animate-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.animate-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.animate-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.visible {
  opacity: 1;
  transform: translateY(0) scale(1) translateX(0) !important;
}

/* Atrasos (Delays) */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Animações CSS Puras */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* --- RESPONSIVIDADE (MEDIA QUERIES) --- */
@media (max-width: 1024px) {
  .section {
    padding: 80px 0;
  }
  .hero-title {
    font-size: 2.75rem;
  }
  .about-section {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-image-wrapper {
    max-width: 600px;
    margin: 0 auto 40px auto;
  }
  .calculator-box {
    grid-template-columns: 1fr;
    padding: 32px;
    gap: 32px;
  }
  .solutions-page-grid {
    grid-template-columns: 1fr;
  }
  .vertical-tabs {
    flex-direction: row;
    overflow-x: auto;
    position: static;
    padding: 10px;
  }
  .vertical-tab-btn {
    white-space: nowrap;
    justify-content: center;
  }
  .tab-content-panel {
    grid-template-columns: 1fr;
    padding: 32px;
  }
  .contact-page-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  :root {
    --navbar-height: 70px;
  }
  .nav-menu-desktop, .header-actions .btn-accent {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .hero-title {
    font-size: 2.25rem;
  }
  .hero-description {
    font-size: 1.05rem;
  }
  .calc-inputs-grid {
    grid-template-columns: 1fr;
  }
  .structure-selector {
    grid-template-columns: repeat(2, 1fr);
  }
  .timeline::before {
    left: 20px;
  }
  .timeline-item {
    width: 100%;
    padding-left: 50px;
    padding-right: 0;
  }
  .timeline-item:nth-child(odd) {
    text-align: left;
    left: 0;
  }
  .timeline-item:nth-child(even) {
    left: 0;
  }
  .timeline-dot {
    left: 10px !important;
    right: auto !important;
  }
  .mvv-grid {
    grid-template-columns: 1fr;
  }
  .quality-section {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .quality-pillars {
    grid-template-columns: 1fr;
  }
  .accordion-content {
    padding: 0 20px 24px 20px;
  }
  .accordion-title-block {
    font-size: 1rem;
  }
  .manual-box {
    grid-template-columns: 1fr;
    padding: 32px;
    gap: 32px;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-group-full {
    grid-column: span 1;
  }
  .maps-container {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}