/* ==========================================================================
   VGC CONSTRUCTION ENGINEERING - INDUSTRIAL DESIGN SYSTEM & STYLESHEET
   Identity Colors:
   - Naranja Industrial: #f39c12 (Primary CTA / Highlights)
   - Gris Metálico: #7f8c8d / #34495e / #95a5a6 (Technical & Details)
   - Negro Carbono: #2c3e50 / #1a252f (Typography & Headings)
   - Backgrounds: Clean White (#ffffff) / Light Gray (#f8f9fa)
   Typography:
   - Montserrat (Headings)
   - Roboto (Body Text)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500;600;700;800;900&family=Roboto:ital,wght@0,300;0,400;0,500;0,700;1,400&display=swap');

:root {
  /* Brand Color Tokens */
  --naranja-industrial: #f39c12;
  --naranja-hover: #d35400;
  --naranja-light: rgba(243, 156, 18, 0.12);
  --gris-metalico: #7f8c8d;
  --gris-metalico-dark: #34495e;
  --gris-metalico-light: #ecf0f1;
  --gris-border: #dcdde1;
  --negro-carbono: #2c3e50;
  --negro-profundo: #1a252f;
  
  /* System Tokens */
  --bg-main: #f8f9fa;
  --bg-card: #ffffff;
  --text-primary: #2c3e50;
  --text-secondary: #596275;
  --text-light: #7f8c8d;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.07);
  --shadow-md: 0 10px 25px -5px rgba(44, 62, 80, 0.12);
  --shadow-lg: 0 20px 35px -10px rgba(0, 0, 0, 0.18);
  --transition-fast: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

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

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

body {
  font-family: 'Roboto', sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .font-heading {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  color: var(--negro-carbono);
  line-height: 1.25;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

p {
  color: var(--text-secondary);
  font-size: 1rem;
}

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

ul {
  list-style: none;
}

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

/* --- Layout Utility Classes --- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-padding {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-block;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--naranja-industrial);
  background-color: var(--naranja-light);
  padding: 0.35rem 1rem;
  border-left: 4px solid var(--naranja-industrial);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.section-title {
  font-size: 2.3rem;
  margin-bottom: 1rem;
  color: var(--negro-carbono);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gris-metalico);
}

/* --- Buttons & Action Elements --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.85rem 1.8rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--naranja-industrial);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(243, 156, 18, 0.4);
}

.btn-primary:hover {
  background-color: var(--naranja-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(243, 156, 18, 0.5);
}

.btn-secondary {
  background-color: var(--negro-carbono);
  color: #ffffff;
}

.btn-secondary:hover {
  background-color: var(--negro-profundo);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--gris-metalico);
  color: var(--negro-carbono);
}

.btn-outline:hover {
  border-color: var(--naranja-industrial);
  color: var(--naranja-industrial);
  background-color: var(--naranja-light);
}

/* --- Sticky Top Header Navbar --- */
.top-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(44, 62, 80, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 3px solid var(--naranja-industrial);
  box-shadow: var(--shadow-md);
  transition: var(--transition-fast);
}

.top-header.scrolled {
  background-color: rgba(26, 37, 47, 0.98);
  padding: 0.2rem 0;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.brand-logo:hover {
  transform: translateY(-1px);
}

.logo-img {
  height: 62.5px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.3));
  transition: transform 0.3s ease, filter 0.3s ease;
}

.brand-logo:hover .logo-img {
  transform: scale(1.05);
  filter: drop-shadow(0 3px 8px rgba(240, 129, 31, 0.4));
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: var(--naranja-industrial);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 1.4rem;
  border-radius: var(--radius-sm);
  clip-path: polygon(0 0, 100% 0, 85% 100%, 0 100%);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 1.16rem;
  color: #ffffff;
  letter-spacing: -0.02em;
  line-height: 1.1;
  white-space: nowrap;
}

.logo-title span {
  color: var(--naranja-industrial);
}

.logo-subtitle {
  font-family: 'Roboto', sans-serif;
  font-size: 0.90rem;
  color: var(--gris-metalico-light);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 2px;
  white-space: nowrap;
}

/* Navigation Links & Dropdown */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.nav-link {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.88rem;
  color: #ecf0f1;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.5rem 0;
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--naranja-industrial);
  transition: var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--naranja-industrial);
}

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

/* Dropdown Menu Item */
.dropdown-item {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 280px;
  background-color: var(--negro-carbono);
  border-top: 3px solid var(--naranja-industrial);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.8rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: var(--transition-fast);
  pointer-events: none;
}

.dropdown-item:hover .dropdown-menu,
.dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.dropdown-menu li a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.4rem;
  color: var(--gris-metalico-light);
  font-family: 'Roboto', sans-serif;
  font-weight: 500;
  font-size: 0.9rem;
  border-left: 3px solid transparent;
}

.dropdown-menu li a:hover {
  background-color: rgba(243, 156, 18, 0.1);
  color: var(--naranja-industrial);
  border-left-color: var(--naranja-industrial);
  padding-left: 1.7rem;
}

.dropdown-menu li a i {
  color: var(--naranja-industrial);
  width: 18px;
  text-align: center;
}

/* Header Quote CTA Button */
.header-cta {
  padding: 0.65rem 1.3rem;
  font-size: 0.85rem;
}

/* Mobile Toggle Hamburger */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.6rem;
  cursor: pointer;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(26, 37, 47, 0.92) 0%, rgba(44, 62, 80, 0.82) 100%),
              url('assets/hero.jpg') center/cover no-repeat;
  color: #ffffff;
  overflow: hidden;
  padding: 4rem 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 50%, rgba(243, 156, 18, 0.15), transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(243, 156, 18, 0.2);
  border: 1px solid var(--naranja-industrial);
  color: var(--naranja-industrial);
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-title {
  font-size: clamp(2.3rem, 5vw, 3.8rem);
  color: #ffffff;
  margin-bottom: 1.2rem;
  text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

.hero-title span {
  color: var(--naranja-industrial);
  display: inline-block;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--gris-metalico-light);
  margin-bottom: 2.2rem;
  max-width: 650px;
}

.hero-actions {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

/* Stats Counter Grid */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  border-top: 1px solid rgba(236, 240, 241, 0.15);
  padding-top: 2rem;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 2.2rem;
  color: var(--naranja-industrial);
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--gris-metalico-light);
  margin-top: 0.3rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================
   NOSOTROS / NUESTRA HISTORIA Y COMPROMISO (DENTRO DE INICIO)
   ========================================== */
#inicio {
  background-color: var(--negro-carbono);
}

.about-section {
  background: linear-gradient(180deg, var(--negro-carbono) 0%, #151d24 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.about-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(240, 129, 31, 0.15);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  border-left: 4px solid var(--naranja-industrial);
}

.about-tag .tag-text {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--naranja-industrial);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.about-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.25rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.25;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.about-quote {
  background-color: rgba(255, 255, 255, 0.05);
  border-left: 4px solid var(--naranja-industrial);
  padding: 1.25rem 1.5rem;
  border-radius: 0 12px 12px 0;
  margin-bottom: 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.about-quote p {
  font-family: 'Roboto', sans-serif;
  font-style: italic;
  font-size: 1.05rem;
  font-weight: 500;
  color: #e2e8f0;
  line-height: 1.5;
}

.about-description {
  font-family: 'Roboto', sans-serif;
  font-size: 0.98rem;
  color: #94a3b8;
  line-height: 1.65;
  margin-bottom: 2rem;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.about-feature-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 1.4rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.about-feature-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(240, 129, 31, 0.5);
  box-shadow: 0 10px 25px rgba(240, 129, 31, 0.15);
}

.feature-icon-box {
  width: 46px;
  height: 46px;
  background-color: rgba(240, 129, 31, 0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.feature-icon-box i {
  font-size: 1.25rem;
  color: var(--naranja-industrial);
}

.feature-card-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.4rem;
}

.feature-card-desc {
  font-family: 'Roboto', sans-serif;
  font-size: 0.85rem;
  color: #94a3b8;
  line-height: 1.5;
}

.about-image-wrapper {
  position: relative;
}

.about-image-container {
  position: relative;
  border-radius: 20px;
  box-shadow: var(--shadow-xl);
}

.about-img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: 20px;
  display: block;
}

.about-experience-badge {
  position: absolute;
  bottom: -20px;
  left: -25px;
  background-color: #1e293b;
  border-bottom: 4px solid var(--naranja-industrial);
  border-radius: 12px;
  padding: 1.25rem 1.75rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
  z-index: 2;
  max-width: 310px;
}

.badge-number {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--naranja-industrial);
  line-height: 1;
  margin-bottom: 0.35rem;
  letter-spacing: -0.02em;
}

.badge-label {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.3;
}

/* --- Catalog Section & Filters --- */
.catalog-section {
  background-color: #ffffff;
}

.catalog-controls {
  margin-bottom: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Search Bar */
.search-wrapper {
  position: relative;
  max-width: 500px;
  margin: 0 auto;
  width: 100%;
}

.search-input {
  width: 100%;
  padding: 0.9rem 1.2rem 0.9rem 3rem;
  font-family: 'Roboto', sans-serif;
  font-size: 0.95rem;
  border: 2px solid var(--gris-border);
  border-radius: var(--radius-md);
  background-color: var(--bg-main);
  color: var(--negro-carbono);
  transition: var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--naranja-industrial);
  box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.15);
  background-color: #ffffff;
}

.search-icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gris-metalico);
  font-size: 1.1rem;
}

/* Category Filter Tabs */
.category-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tab-btn {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-main);
  color: var(--negro-carbono);
  border: 1px solid var(--gris-border);
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tab-btn:hover {
  background-color: var(--naranja-light);
  border-color: var(--naranja-industrial);
  color: var(--naranja-industrial);
}

.tab-btn.active {
  background-color: var(--naranja-industrial);
  border-color: var(--naranja-industrial);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(243, 156, 18, 0.35);
}

/* Machinery Cards Grid */
.machinery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

.machinery-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--gris-border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.machinery-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--naranja-industrial);
}

.card-image-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
  background-color: var(--negro-carbono);
}

.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background-color: var(--negro-carbono);
  color: var(--naranja-industrial);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--naranja-industrial);
  text-transform: uppercase;
}

.card-category-tag {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  background: rgba(44, 62, 80, 0.85);
  backdrop-filter: blur(4px);
  color: #ffffff;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-sm);
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-title {
  font-size: 1.25rem;
  color: var(--negro-carbono);
  margin-bottom: 0.4rem;
}

.card-subtitle {
  font-size: 0.88rem;
  color: var(--gris-metalico);
  margin-bottom: 1.2rem;
  font-weight: 500;
}

.card-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  background-color: var(--bg-main);
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  border: 1px solid rgba(127, 140, 141, 0.15);
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-key {
  font-size: 0.75rem;
  color: var(--gris-metalico);
  text-transform: uppercase;
  font-weight: 500;
}

.spec-val {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--negro-carbono);
}

.card-footer-actions {
  margin-top: auto;
  display: flex;
  gap: 0.75rem;
}

.card-footer-actions .btn {
  flex: 1;
  padding: 0.65rem 0.5rem;
  font-size: 0.82rem;
}

/* --- Import Processes Section (Timeline) --- */
.process-section {
  background-color: var(--bg-main);
  position: relative;
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
  margin-top: 2rem;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 3px;
  background: linear-gradient(90deg, var(--naranja-industrial), var(--gris-metalico));
  z-index: 1;
}

.timeline-step {
  position: relative;
  z-index: 2;
  background-color: #ffffff;
  border-radius: var(--radius-md);
  padding: 2rem 1.2rem 1.8rem 1.2rem;
  border: 1px solid var(--gris-border);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.timeline-step:hover {
  transform: translateY(-5px);
  border-color: var(--naranja-industrial);
  box-shadow: var(--shadow-md);
}

.step-number {
  width: 54px;
  height: 54px;
  background-color: var(--negro-carbono);
  color: var(--naranja-industrial);
  border: 3px solid var(--naranja-industrial);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 1.3rem;
  margin: 0 auto 1.5rem auto;
  box-shadow: 0 0 0 5px #ffffff;
}

.timeline-step:hover .step-number {
  background-color: var(--naranja-industrial);
  color: #ffffff;
}

.step-title {
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
  color: var(--negro-carbono);
}

.step-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* --- About Us Section --- */
.about-section {
  background-color: var(--negro-carbono);
  color: #ffffff;
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.about-text .section-tag {
  background-color: rgba(243, 156, 18, 0.15);
}

.about-text .section-title {
  color: #ffffff;
}

.about-text p {
  color: var(--gris-metalico-light);
  margin-bottom: 1.5rem;
  font-size: 1.02rem;
}

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

.feature-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(127, 140, 141, 0.3);
  border-left: 3px solid var(--naranja-industrial);
  padding: 1.2rem;
  border-radius: var(--radius-sm);
}

.feature-box h4 {
  color: #ffffff;
  font-size: 0.98rem;
  margin-bottom: 0.4rem;
}

.feature-box p {
  font-size: 0.85rem;
  color: var(--gris-metalico-light);
  margin: 0;
}

.about-card-visual {
  background: linear-gradient(135deg, rgba(52, 73, 94, 0.8), rgba(26, 37, 47, 0.95));
  border: 2px solid var(--naranja-industrial);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.about-quote-title {
  font-size: 1.4rem;
  color: #ffffff;
  margin-bottom: 1rem;
}

.about-quote-title span {
  color: var(--naranja-industrial);
}

.location-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.8rem;
}

.loc-badge {
  background-color: var(--negro-profundo);
  border: 1px solid var(--gris-metalico);
  color: #ffffff;
  font-size: 0.8rem;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.loc-badge i {
  color: var(--naranja-industrial);
}

/* --- Interactive Quotation Modal --- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(26, 37, 47, 0.85);
  backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
}

.modal-backdrop.show {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--naranja-industrial);
  transform: translateY(20px);
  transition: var(--transition-fast);
}

.modal-backdrop.show .modal-container {
  transform: translateY(0);
}

.modal-header {
  background-color: var(--negro-carbono);
  color: #ffffff;
  padding: 1.25rem 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 3px solid var(--naranja-industrial);
}

.modal-title {
  font-size: 1.25rem;
  color: #ffffff;
}

.modal-close {
  background: none;
  border: none;
  color: var(--gris-metalico-light);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close:hover {
  color: var(--naranja-industrial);
}

.modal-body {
  padding: 1.8rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--negro-carbono);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.form-control, .form-select {
  width: 100%;
  padding: 0.8rem 1rem;
  font-family: 'Roboto', sans-serif;
  font-size: 0.95rem;
  border: 1.5px solid var(--gris-border);
  border-radius: var(--radius-sm);
  background-color: var(--bg-main);
  color: var(--negro-carbono);
  transition: var(--transition-fast);
}

.form-control:focus, .form-select:focus {
  outline: none;
  border-color: var(--naranja-industrial);
  box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.2);
  background-color: #ffffff;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.modal-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.modal-btn-cancel {
  flex: 1;
}

.modal-btn-submit {
  flex: 2;
  white-space: normal;
  text-align: center;
  line-height: 1.25;
}

/* --- Notification Toast --- */
.toast-notification {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--negro-carbono);
  color: #ffffff;
  border-left: 5px solid var(--naranja-industrial);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition-fast);
}

.toast-notification.show {
  transform: translateY(0);
  opacity: 1;
}

/* --- Footer --- */
.footer {
  background-color: var(--negro-profundo);
  color: var(--gris-metalico-light);
  border-top: 4px solid var(--naranja-industrial);
  padding-top: 4rem;
  padding-bottom: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo-title {
  font-size: 0.93rem;
}

.footer-brand .logo-subtitle {
  font-size: 0.72rem;
}

.footer-brand p {
  color: var(--gris-metalico);
  font-size: 0.9rem;
  margin-top: 1rem;
}

.footer-title {
  font-size: 1rem;
  color: #ffffff;
  margin-bottom: 1.2rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 35px;
  height: 2px;
  background-color: var(--naranja-industrial);
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: var(--gris-metalico);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--naranja-industrial);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.8rem;
  font-size: 0.9rem;
  color: var(--gris-metalico);
}

.footer-contact i {
  color: var(--naranja-industrial);
  margin-top: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(127, 140, 141, 0.2);
  padding-top: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--gris-metalico);
}

/* --- Responsive Media Queries --- */
@media (max-width: 1024px) {
  .process-timeline {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-timeline::before {
    display: none;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .logo-img {
    height: 52px;
  }

  .top-header .logo-title {
    font-size: 0.802rem !important;
  }

  .top-header .logo-subtitle {
    font-size: 0.622rem !important;
  }

  .header-actions {
    gap: 0.75rem;
  }

  .lang-btn {
    padding: 0.35rem 0.65rem;
    font-size: 0.76rem;
    gap: 0.35rem;
  }

  .lang-dropdown {
    right: -10px;
    width: 160px;
  }

  .mobile-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--negro-carbono);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 3px solid var(--naranja-industrial);
    box-shadow: var(--shadow-lg);
    display: none;
  }
  
  .nav-menu.mobile-open {
    display: flex;
  }
  
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    width: 100%;
    box-shadow: none;
    display: none;
    background-color: var(--negro-profundo);
    margin-top: 0.5rem;
  }
  
  .dropdown-item.open .dropdown-menu {
    display: block;
  }
  
  .section-padding {
    padding: 3.5rem 0;
  }

  .container {
    padding: 0 1rem;
  }

  /* Sección Nuestra Historia y Compromiso */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-title {
    font-size: 1.55rem;
    line-height: 1.3;
    margin-bottom: 1rem;
    word-break: break-word;
  }

  .about-quote {
    padding: 0.9rem 1.1rem;
    margin-bottom: 1.2rem;
  }

  .about-quote p {
    font-size: 0.92rem;
    line-height: 1.5;
  }

  .about-description {
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
  }

  .about-features {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .about-feature-card {
    padding: 1.1rem;
    border-radius: 12px;
  }

  .feature-card-title {
    font-size: 0.98rem;
  }

  .feature-card-desc {
    font-size: 0.85rem;
    line-height: 1.45;
  }

  .about-image-wrapper {
    margin-top: 1rem;
    width: 100%;
  }

  .about-img {
    height: 250px;
    width: 100%;
    object-fit: cover;
    border-radius: 14px;
  }

  .about-experience-badge {
    position: relative;
    left: auto;
    bottom: auto;
    margin: -20px auto 0 auto;
    width: calc(100% - 2rem);
    max-width: 100%;
    padding: 0.9rem 1.2rem;
    border-radius: 10px;
    box-sizing: border-box;
    text-align: center;
  }

  .badge-number {
    font-size: 1.7rem;
    margin-bottom: 0.2rem;
  }

  .badge-label {
    font-size: 0.72rem;
    line-height: 1.3;
  }

  /* Sección Nosotros (Ingeniería & Confianza) */
  .about-text .section-title {
    font-size: 1.6rem;
    line-height: 1.25;
    word-break: break-word;
  }

  .about-text p {
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 1rem;
  }

  .feature-box {
    padding: 0.9rem 1rem;
  }

  .feature-box h4 {
    font-size: 0.92rem;
  }

  .feature-box p {
    font-size: 0.82rem;
    line-height: 1.45;
  }

  .about-card-visual {
    padding: 1.4rem 1.1rem;
    border-radius: 12px;
    width: 100%;
    box-sizing: border-box;
    margin-top: 1.5rem;
  }

  .about-quote-title {
    font-size: 1.2rem;
    line-height: 1.3;
    word-break: break-word;
  }

  .about-card-visual p {
    font-size: 0.88rem !important;
    line-height: 1.55 !important;
  }

  .location-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-top: 1.2rem;
  }

  .loc-badge {
    font-size: 0.74rem;
    padding: 0.35rem 0.65rem;
    border-radius: 4px;
    white-space: normal;
    word-break: break-word;
  }

  .about-card-visual .btn {
    white-space: normal;
    text-align: center;
    font-size: 0.82rem;
    padding: 0.75rem 1rem;
    line-height: 1.3;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .process-timeline {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }

  /* Modal de Cotización Responsivo */
  .modal-backdrop {
    padding: 0.75rem;
  }

  .modal-container {
    max-height: 92vh;
    border-radius: var(--radius-sm);
    width: 100%;
  }

  .modal-header {
    padding: 1rem 1.2rem;
  }

  .modal-title {
    font-size: 1.05rem;
    line-height: 1.25;
  }

  .modal-body {
    padding: 1.2rem 1rem;
  }

  .modal-actions {
    flex-direction: column-reverse;
    gap: 0.75rem;
    margin-top: 1.25rem;
  }

  .modal-btn-cancel,
  .modal-btn-submit {
    width: 100%;
    flex: none;
    white-space: normal;
    padding: 0.85rem 1rem;
    font-size: 0.88rem;
    line-height: 1.3;
    text-align: center;
    box-sizing: border-box;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    left: auto;
    width: 42px;
    height: 42px;
    font-size: 1.35rem;
  }

  .whatsapp-tooltip {
    display: none;
  }

  .lang-float {
    bottom: 72px;
    right: 20px;
  }

  .lang-float-btn {
    width: 42px;
    height: 42px;
    font-size: 1.15rem;
  }

  .lang-float-tooltip {
    display: none;
  }

  .lang-float-dropdown {
    right: 0;
    width: 160px;
  }
}

/* ==========================================
   FLOATING WHATSAPP BUTTON (LADO DERECHO)
   ========================================== */
.whatsapp-float {
  position: fixed;
  bottom: 25px;
  right: 25px;
  left: auto;
  width: 48px;
  height: 48px;
  background-color: #25d366;
  color: #ffffff;
  border-radius: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  z-index: 9999;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-decoration: none;
}

.whatsapp-float:hover {
  background-color: #20ba5a;
  transform: scale(1.1);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
  color: #ffffff;
}

/* Pulse animation */
.whatsapp-float::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: rgba(37, 211, 102, 0.5);
  z-index: -1;
  animation: whatsappPulse 2s infinite;
}

@keyframes whatsappPulse {
  0% {
    transform: scale(0.95);
    opacity: 0.8;
  }
  70% {
    transform: scale(1.4);
    opacity: 0;
  }
  100% {
    transform: scale(0.95);
    opacity: 0;
  }
}

/* Tooltip text on hover (Desplazado a la izquierda del botón) */
.whatsapp-tooltip {
  position: absolute;
  right: 58px;
  left: auto;
  background-color: #1e293b;
  color: #ffffff;
  padding: 0.45rem 0.9rem;
  border-radius: 8px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transform: translateX(10px);
  transition: all 0.3s ease;
  pointer-events: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.whatsapp-tooltip::before {
  content: '';
  position: absolute;
  top: 50%;
  right: -6px;
  left: auto;
  transform: translateY(-50%);
  border-width: 6px 0 6px 6px;
  border-style: solid;
  border-color: transparent transparent transparent #1e293b;
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

/* ==========================================
   FLOATING LANGUAGE BUTTON (ENCIMA DE WHATSAPP)
   ========================================== */
.lang-float {
  position: fixed;
  bottom: 84px;
  right: 25px;
  left: auto;
  z-index: 9999;
}

.lang-float-btn {
  width: 48px;
  height: 48px;
  background-color: var(--negro-carbono);
  color: #ffffff;
  border: 2px solid var(--naranja-industrial);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.35);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
}

.lang-float-btn:hover,
.lang-float.open .lang-float-btn {
  background-color: var(--negro-profundo);
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(243, 156, 18, 0.4);
  color: var(--naranja-industrial);
}

.lang-float-btn i {
  color: var(--naranja-industrial);
  transition: transform 0.3s ease;
}

.lang-float-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background-color: var(--naranja-industrial);
  color: #ffffff;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.65rem;
  font-weight: 900;
  padding: 1px 4px;
  border-radius: 4px;
  line-height: 1.1;
  border: 1px solid var(--negro-profundo);
  letter-spacing: 0.02em;
}

/* Tooltip text on hover */
.lang-float-tooltip {
  position: absolute;
  top: 50%;
  right: 58px;
  transform: translateY(-50%) translateX(10px);
  background-color: #1e293b;
  color: #ffffff;
  padding: 0.45rem 0.9rem;
  border-radius: 8px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  pointer-events: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.lang-float-tooltip::before {
  content: '';
  position: absolute;
  top: 50%;
  right: -6px;
  transform: translateY(-50%);
  border-width: 6px 0 6px 6px;
  border-style: solid;
  border-color: transparent transparent transparent #1e293b;
}

.lang-float:hover .lang-float-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
}

.lang-float.open .lang-float-tooltip {
  display: none;
}

/* Dropdown list */
.lang-float-dropdown {
  position: absolute;
  bottom: calc(100% + 12px);
  right: 0;
  width: 175px;
  background-color: var(--negro-carbono);
  border: 1px solid rgba(243, 156, 18, 0.4);
  border-bottom: 3px solid var(--naranja-industrial);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.4rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition-fast);
  z-index: 1050;
  list-style: none;
}

.lang-float.open .lang-float-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 0.9rem;
  background: transparent;
  border: none;
  color: var(--gris-metalico-light);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-option:hover {
  background-color: rgba(243, 156, 18, 0.15);
  color: var(--naranja-industrial);
  padding-left: 1.1rem;
}

.lang-option.active {
  color: var(--naranja-industrial);
  background-color: rgba(243, 156, 18, 0.1);
  border-left: 3px solid var(--naranja-industrial);
}

.lang-option .flag-icon {
  font-size: 1.1rem;
  line-height: 1;
}

.lang-option .lang-name {
  flex: 1;
}

.lang-option .lang-code {
  font-size: 0.72rem;
  color: var(--gris-metalico);
  font-weight: 700;
}

.lang-option.active .lang-code {
  color: var(--naranja-industrial);
}