/* ==========================================================================
   ENTREX Corporate Landing Page - Style System (Antigravity Concept)
   ========================================================================== */

/* 1. Design System & Variables */
:root {
  --navy-primary: #0A2540;
  --navy-dark: #051321;
  --navy-light: #1E3D59;
  --navy-transparent: rgba(10, 37, 64, 0.05);
  --orange-accent: #FF6B35;
  --orange-hover: #E05A2B;
  --orange-transparent: rgba(255, 107, 53, 0.1);
  --grey-exec: #4A5568;
  --grey-light: #F8FAFC;
  --grey-border: #E2E8F0;
  --white: #FFFFFF;
  
  --font-sans: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: all 0.15s ease-out;
  
  --shadow-subtle: 0 4px 20px rgba(10, 37, 64, 0.05);
  --shadow-medium: 0 10px 30px rgba(10, 37, 64, 0.08);
  --shadow-hover: 0 20px 40px rgba(10, 37, 64, 0.12);
  
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
}

/* 2. Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* Offset for floating header */
}

body {
  font-family: var(--font-sans);
  background-color: var(--white);
  color: var(--navy-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

ul, ol {
  list-style: none;
}

/* 3. Typography & Headings */
h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.25;
}

p {
  color: var(--grey-exec);
  font-weight: 400;
}

/* 4. Common Layout & Components */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-narrow {
  max-width: 800px;
}

.section {
  padding: 8rem 0;
  position: relative;
}

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

.section-bg {
  background-color: var(--grey-light);
}

.section-tag {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--orange-accent);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  text-align: center;
}

.section-title {
  font-size: 2.25rem;
  color: var(--navy-primary);
  text-align: center;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.underline-accent {
  width: 50px;
  height: 3px;
  background-color: var(--orange-accent);
  margin: 1.25rem auto 3rem auto;
  border-radius: var(--border-radius-sm);
}

.section-paragraph-large {
  font-size: 1.15rem;
  text-align: center;
  line-height: 1.8;
  color: var(--grey-exec);
  font-weight: 300;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.9rem 2.2rem;
  border-radius: var(--border-radius-sm);
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-primary {
  background-color: var(--orange-accent);
  color: var(--white);
  border: 1px solid var(--orange-accent);
  box-shadow: 0 4px 14px rgba(255, 107, 53, 0.2);
}

.btn-primary:hover {
  background-color: var(--orange-hover);
  border-color: var(--orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--navy-primary);
  color: var(--white);
  border: 2px solid var(--navy-primary);
}

.btn-secondary:hover {
  background-color: transparent;
  color: var(--navy-primary);
  border-color: var(--navy-primary);
  transform: translateY(-2px);
}

/* 5. Header Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-subtle);
  padding: 0.75rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  transition: var(--transition-smooth);
}

.navbar.scrolled .nav-container {
  padding: 0.75rem 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  height: 38px;
}

.entrex-logo {
  height: 100%;
  width: auto;
}

.nav-list {
  display: flex;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--navy-primary);
  position: relative;
  padding: 0.5rem 0;
}

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

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

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

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--navy-primary);
  position: relative;
  transition: var(--transition-smooth);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: var(--navy-primary);
  transition: var(--transition-smooth);
}

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

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

/* Mobile Nav Toggle Active State */
.mobile-nav-toggle[aria-expanded="true"] .hamburger {
  background-color: transparent;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger::after {
  transform: rotate(-45deg);
  bottom: 0;
}


/* 6. Hero Section */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding-top: 100px;
  overflow: hidden;
  background: radial-gradient(circle at top right, rgba(238, 244, 248, 0.4), var(--white) 60%);
}

.hero-container {
  z-index: 2;
  max-width: 800px;
  padding: 0 2rem;
}

.hero-logo-container {
  width: 100%;
  max-width: 480px;
  margin: 0 auto 3rem auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.entrex-logo-hero {
  width: 100%;
  height: auto;
}

.hero-lead {
  font-size: 1.25rem;
  color: var(--grey-exec);
  margin-bottom: 3.5rem;
  font-weight: 300;
  letter-spacing: 0.02em;
}

.hero-cta {
  font-size: 1rem;
}

/* Ambient glow background effects */
.hero-background-effects {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(150px);
  opacity: 0.4;
}

.glow-1 {
  width: 400px;
  height: 400px;
  background-color: var(--orange-transparent);
  top: -100px;
  right: -50px;
}

.glow-2 {
  width: 500px;
  height: 500px;
  background-color: var(--navy-transparent);
  bottom: -200px;
  left: -100px;
}


/* 7. ¿Cómo lo Hacemos? (Process) */
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin-top: 2rem;
}

.process-card {
  background-color: var(--white);
  padding: 3rem 2rem;
  border-radius: var(--border-radius-md);
  text-align: center;
  box-shadow: var(--shadow-subtle);
  transition: var(--transition-smooth);
  border: 1px solid rgba(226, 232, 240, 0.6);
  position: relative;
}

.process-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
  border-color: var(--orange-transparent);
}

.process-icon-wrapper {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: var(--grey-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem auto;
  color: var(--navy-primary);
  transition: var(--transition-smooth);
}

.process-card:hover .process-icon-wrapper {
  background-color: var(--orange-transparent);
  color: var(--orange-accent);
}

.process-icon {
  width: 32px;
  height: 32px;
  stroke-width: 1.5;
}

.process-card-title {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: var(--navy-primary);
}

.process-card-desc {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--grey-exec);
  font-weight: 400;
}


/* 8. Ecosistema de Capacidades */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 2.5rem 2rem;
  margin-top: 2rem;
}

.capability-card {
  grid-column: span 2;
  background-color: var(--white);
  padding: 3rem 2.5rem;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--grey-border);
  transition: var(--transition-smooth);
}

/* Custom alignment for 5 items in a 6-column layout:
   Row 1: 3 cards (each span 2 -> 6 total)
   Row 2: 2 cards (should center) -> we shift the 4th card via margin/grid-column */
.capability-card:nth-child(4) {
  grid-column: 2 / span 2;
}

.capability-card:nth-child(5) {
  grid-column: 4 / span 2;
}

.capability-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(10, 37, 64, 0.15);
}

.capability-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: var(--border-radius-sm);
  background-color: rgba(10, 37, 64, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  color: var(--navy-primary);
  transition: var(--transition-smooth);
}

.capability-card:hover .capability-icon-wrapper {
  background-color: var(--orange-transparent);
  color: var(--orange-accent);
}

.capability-icon {
  width: 28px;
  height: 28px;
  stroke-width: 1.5;
}

.capability-card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--navy-primary);
}

.capability-card-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--grey-exec);
}


/* 9. Contacto Section */
.founder-block {
  text-align: center;
  margin-bottom: 2rem;
}

.founder-intro {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--grey-exec);
  margin-bottom: 0.5rem;
}

.founder-name {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--navy-primary);
}

.founder-title {
  font-size: 0.95rem;
  color: var(--orange-accent);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.contact-lead-text {
  text-align: center;
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 3.5rem auto;
  font-weight: 300;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 480px;
  margin: 0 auto;
}

.btn-contact {
  padding: 1.1rem 2rem;
  background-color: var(--navy-primary);
  border: 1px solid var(--navy-primary);
  color: var(--white);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: var(--transition-smooth);
}

.btn-contact:hover {
  background-color: var(--white);
  color: var(--navy-primary);
  border-color: var(--navy-primary);
  box-shadow: var(--shadow-medium);
  transform: translateY(-2px);
}

.btn-contact:hover .contact-icon {
  stroke: var(--orange-accent);
}

.contact-icon {
  width: 20px;
  height: 20px;
  stroke-width: 1.8;
  color: inherit;
  transition: var(--transition-smooth);
}


/* 10. Footer */
.footer {
  background-color: var(--navy-dark);
  color: var(--white);
  padding: 5rem 0 4rem 0;
  border-top: 2px solid var(--orange-accent);
  text-align: center;
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 44px;
  margin-bottom: 1.25rem;
}

.entrex-logo-footer {
  height: 100%;
  width: auto;
}

.footer-copyright {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-location {
  font-size: 0.85rem;
  color: var(--orange-accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 500;
}


/* 11. Scroll Animations (Scroll Reveal) */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.8, 0.25, 1),
              transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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


/* 12. Media Queries & Responsiveness */

@media (max-width: 1024px) {
  .hero-logo-container {
    max-width: 420px;
  }
  
  .process-grid {
    gap: 2rem;
  }
  
  .capabilities-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .capability-card {
    grid-column: span 2;
  }
  
  .capability-card:nth-child(4) {
    grid-column: span 2;
  }
  
  .capability-card:nth-child(5) {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 5rem 0;
  }
  
  .hero-logo-container {
    max-width: 360px;
    margin-bottom: 2rem;
  }
  
  .hero-lead {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
  }
  
  /* Mobile Menu navigation toggle */
  .mobile-nav-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background-color: var(--white);
    box-shadow: -10px 0 30px rgba(10, 37, 64, 0.15);
    z-index: 1000;
    transition: var(--transition-smooth);
    padding: 7rem 2rem 2rem 2rem;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-list {
    flex-direction: column;
    gap: 2rem;
    align-items: flex-start;
  }
  
  .nav-link {
    font-size: 1.1rem;
  }
  
  /* Process Grid Column Stack */
  .process-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 500px;
    margin: 2rem auto 0 auto;
  }
  
  /* Capabilities Grid Column Stack */
  .capabilities-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 500px;
    margin: 2rem auto 0 auto;
  }
  
  .capability-card {
    grid-column: span 1 !important;
    padding: 2.5rem 2rem;
  }
}

@media (max-width: 480px) {
  .hero-logo-container {
    max-width: 280px;
    margin-bottom: 1.5rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .section-paragraph-large {
    font-size: 1.05rem;
  }
  
  .btn {
    width: 100%;
  }
  
  .contact-methods {
    width: 100%;
  }
}