/* =============================================
   INDUSTRIAL AND TECHNOLOGICAL BACK UP
   Microsoft-style design
   Brand colors: Red #C41230, Gold #F5A800, Dark #1A1A1A
   ============================================= */

:root {
  --red: #C41230;
  --red-dark: #9B0E25;
  --red-light: #E8192C;
  --gold: #F5A800;
  --gold-dark: #D4910A;
  --dark: #1A1A1A;
  --dark-2: #2D2D2D;
  --dark-3: #3A3A3A;
  --gray-1: #F8F8F8;
  --gray-2: #F0F0F0;
  --gray-3: #E0E0E0;
  --gray-4: #ABABAB;
  --gray-5: #767676;
  --white: #FFFFFF;
  --text-primary: #1A1A1A;
  --text-secondary: #555555;
  --font: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 4px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.08);
  --shadow: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.14);
  --nav-height: 64px;
  --transition: 0.22s ease;
}

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

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

body {
  font-family: var(--font);
  color: var(--text-primary);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ==================== NAV ==================== */
.nav-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-3);
  z-index: 1000;
  transition: box-shadow var(--transition);
}

.nav-header.scrolled {
  box-shadow: var(--shadow);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 0 24px;
}

.nav-logo {
  flex-shrink: 0;
}

.logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 16px; right: 16px;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transition: transform var(--transition);
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--red);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.btn-whatsapp {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--dark);
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background var(--transition);
  flex-shrink: 0;
}

.btn-whatsapp:hover {
  background: var(--dark-2);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ==================== HERO ==================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  margin-top: var(--nav-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, #1A1A1A 0%, #2D2D2D 40%, #3A1010 70%, #1A1A1A 100%);
}

/* Geometric decorative elements */
.hero-bg::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 600px;
  height: 600px;
  border: 80px solid rgba(196,18,48,0.15);
  transform: rotate(15deg);
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: 80px;
  width: 400px;
  height: 400px;
  background: rgba(245,168,0,0.06);
  transform: rotate(-10deg);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 60%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1400px;
  margin: 0 auto;
  padding: 80px 24px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(196,18,48,0.2);
  border: 1px solid rgba(196,18,48,0.4);
  color: rgba(255,255,255,0.9);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 28px;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 24px;
  max-width: 700px;
}

.hero-accent {
  color: var(--gold);
}

.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: rgba(255,255,255,0.78);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero-subtitle strong {
  color: var(--white);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary-hero {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  background: var(--red);
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}

.btn-primary-hero:hover {
  background: var(--red-light);
  transform: translateY(-1px);
}

.btn-outline-hero {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  background: transparent;
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  border: 1.5px solid rgba(255,255,255,0.45);
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition);
}

.btn-outline-hero:hover {
  border-color: rgba(255,255,255,0.85);
  background: rgba(255,255,255,0.08);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.hero-scroll-indicator span {
  display: block;
  width: 24px;
  height: 38px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 12px;
  position: relative;
}

.hero-scroll-indicator span::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: rgba(255,255,255,0.5);
  border-radius: 2px;
  animation: scrollDown 1.6s infinite;
}

@keyframes scrollDown {
  0% { top: 6px; opacity: 1; }
  100% { top: 18px; opacity: 0; }
}

/* ==================== STATS STRIP ==================== */
.stats-strip {
  background: var(--dark);
  padding: 0;
}

.stats-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.stat-item {
  flex: 1;
  max-width: 240px;
  padding: 40px 24px;
  text-align: center;
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  font-weight: 400;
  letter-spacing: 0.3px;
}

.stat-divider {
  width: 1px;
  background: rgba(255,255,255,0.08);
  align-self: stretch;
  margin: 20px 0;
}

/* ==================== SECTION COMMON ==================== */
.section-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ==================== INTRO ==================== */
.intro-section {
  padding: 80px 0;
  background: var(--gray-1);
  border-top: 4px solid var(--gold);
}

.intro-text {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
  font-size: 1.15rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

.intro-text strong {
  color: var(--text-primary);
}

/* ==================== SERVICES ==================== */
.services-section {
  padding: 96px 0;
  background: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--gray-3);
  border: 1px solid var(--gray-3);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.service-card {
  background: var(--white);
  padding: 36px 28px;
  position: relative;
  transition: background var(--transition), transform var(--transition);
  cursor: default;
}

.service-card:hover {
  background: var(--gray-1);
  z-index: 1;
}

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  flex-shrink: 0;
}

.service-icon-red { background: rgba(196,18,48,0.08); color: var(--red); }
.service-icon-gold { background: rgba(245,168,0,0.1); color: var(--gold-dark); }
.service-icon-dark { background: rgba(26,26,26,0.06); color: var(--dark-3); }

.service-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.4;
}

.service-desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.service-arrow {
  font-size: 18px;
  color: var(--red);
  font-weight: 600;
  opacity: 0;
  transition: opacity var(--transition), transform var(--transition);
  transform: translateX(-4px);
}

.service-card:hover .service-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ==================== ABOUT ==================== */
.about-section {
  padding: 96px 0;
  background: var(--gray-1);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.about-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 20px;
  background: var(--dark);
  color: var(--white);
}

.about-badge:nth-child(2) {
  background: var(--red);
}

.about-description {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-description strong { color: var(--text-primary); }

.btn-about {
  display: inline-flex;
  align-items: center;
  margin-top: 16px;
  padding: 12px 28px;
  background: var(--red);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background var(--transition);
}

.btn-about:hover {
  background: var(--red-light);
}

.mv-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mv-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--gray-3);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.mv-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
}

.mv-card-mision::before { background: var(--red); }
.mv-card-vision::before { background: var(--gold); }

.mv-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.mv-card-mision .mv-icon { background: rgba(196,18,48,0.07); color: var(--red); }
.mv-card-vision .mv-icon { background: rgba(245,168,0,0.1); color: var(--gold-dark); }

.mv-title {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--dark);
}

.mv-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.mv-text strong { color: var(--text-primary); }

/* ==================== SECTORS ==================== */
.sectors-section {
  padding: 80px 0;
  background: var(--dark);
}

.sectors-header {
  text-align: center;
  margin-bottom: 48px;
}

.sectors-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--white);
}

.sectors-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

.sector-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  min-width: 140px;
  transition: background var(--transition), border-color var(--transition);
}

.sector-item:hover {
  background: rgba(196,18,48,0.12);
  border-color: rgba(196,18,48,0.3);
}

.sector-icon {
  font-size: 32px;
}

.sector-item span {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  text-align: center;
}

/* ==================== CONTACT ==================== */
.contact-section {
  padding: 96px 0;
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 24px;
  background: var(--gray-1);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-3);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.contact-card:hover {
  border-color: var(--red);
  box-shadow: var(--shadow-sm);
}

.contact-icon-wrap {
  width: 44px;
  height: 44px;
  background: rgba(196,18,48,0.08);
  color: var(--red);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--gray-5);
  margin-bottom: 4px;
}

.contact-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
  line-height: 1.5;
  transition: color var(--transition);
}

a.contact-value:hover {
  color: var(--red);
}

.btn-contact-whatsapp {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  background: #25D366;
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  margin-top: 8px;
  transition: background var(--transition);
}

.btn-contact-whatsapp:hover {
  background: #1ebe5a;
}

.map-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-3);
  box-shadow: var(--shadow);
  height: 460px;
}

.map-wrapper iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ==================== FOOTER ==================== */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 64px 0 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
  height: 60px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  margin-bottom: 16px;
}

.footer-tagline {
  font-size: 13.5px;
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
  max-width: 260px;
}

.footer-links-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 6px;
}

.footer-links-col a {
  font-size: 13.5px;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

.footer-links-col a:hover {
  color: var(--gold);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 12.5px;
  color: rgba(255,255,255,0.35);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1100px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .map-wrapper {
    height: 300px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-3);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-link {
    width: 100%;
    padding: 14px 24px;
    border-radius: 0;
  }

  .nav-link::after { display: none; }

  .nav-hamburger {
    display: flex;
  }

  .btn-whatsapp {
    display: none;
  }

  .hero {
    min-height: calc(100vh - var(--nav-height));
  }

  .stats-container {
    flex-wrap: wrap;
  }
  .stat-divider { display: none; }
  .stat-item { min-width: 140px; }

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

  .sectors-grid {
    gap: 12px;
  }
  .sector-item {
    min-width: 120px;
    padding: 20px 16px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 48px 0 32px;
  }

  .footer-logo {
    height: 48px;
  }

  .section-header {
    margin-bottom: 40px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .btn-primary-hero,
  .btn-outline-hero {
    justify-content: center;
  }
}