/* ===== VARIABLES ===== */
:root {
  --primary-blue: #112FAF;     /* NUEVO COLOR DE FONDO PRINCIPAL */
  --primary-blue-dark: #0D2690; /* Versión más oscura */
  --primary-blue-light: #1A3DC9; /* Versión más clara */
  --deep-blue: #0A2A5E;
  --blue-electric: #1E4A8C;
  --red-accent: #DC2626;
  --orange-accent: #fa5700;
  --white: #FFFFFF;
  --gray-light: #F8FAFC;
  --gray-text: #334155;
  --border-light: rgba(255, 255, 255, 0.2);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--primary-blue); /* FONDO PRINCIPAL #112FAF */
  color: white;
  overflow-x: hidden;
}

html {
  scroll-behavior: smooth;
}

/* ===== NAVBAR ===== */
.navbar {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  padding: 1rem 2rem;
  border-bottom: 1px solid rgba(17, 47, 175, 0.1);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav-container {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-blue);
}

.logo span {
  color: var(--red-accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-weight: 600;
  color: var(--primary-blue);
  transition: 0.2s;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--primary-blue-light);
}

.menu-icon {
  display: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--primary-blue);
}

/* responsive */
@media (max-width: 880px) {
  .menu-icon {
    display: block;
  }
  .nav-links {
    position: absolute;
    top: 70px;
    left: -100%;
    background: white;
    width: 100%;
    flex-direction: column;
    align-items: center;
    padding: 2rem 0;
    gap: 1.5rem;
    transition: 0.3s;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  }
  .nav-links.active {
    left: 0;
  }
}

/* Hero Otros */
.hero-otros {
  min-height: 85vh;
  background: linear-gradient(135deg, #051020, #091832), url('./img/fondop1.jpeg') center/cover no-repeat;
  background-blend-mode: overlay;
  display: flex;
  align-items: center;
  position: relative;
  margin-top: 70px;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.55);
}

.hero-content {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  padding: 2rem;
}

.hero-content h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: 1rem;
}

.hero-content h2 {
  font-size: 1.5rem;
  color: white;
  margin-bottom: 1.5rem;
}

.hero-badge {
  background: var(--red-accent);
  display: inline-block;
  padding: 0.5rem 1.5rem;
  border-radius: 40px;
  font-weight: 600;
  color: white;
}

/* Secciones generales */
.section {
  padding: 5rem 2rem;
}

.container {
  max-width: 1300px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
}

.section-header h2 span {
  color: white;
  background: rgba(255, 255, 255, 0.2);
  padding: 0 0.5rem;
  border-radius: 10px;
}

.blue-line {
  width: 70px;
  height: 3px;
  background: white;
  margin: 1rem auto;
}

/* Presentación */
.presentacion-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
}

.presentacion-card {
  background: white;
  border-radius: 24px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.presentacion-card:hover {
  transform: translateY(-8px);
}

.presentacion-card i {
  font-size: 2.5rem;
  color: var(--red-accent);
  margin-bottom: 1rem;
}

.presentacion-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary-blue);
}

.presentacion-card p {
  color: var(--gray-text);
  line-height: 1.6;
}

.conocimiento-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 24px;
  padding: 2rem;
  text-align: center;
  border-left: 4px solid var(--orange-accent);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  color: var(--gray-text);
}

.conocimiento-card i {
  font-size: 2rem;
  color: var(--orange-accent);
  margin-bottom: 1rem;
}

.conocimiento-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--primary-blue);
}

.conocimiento-card p {
  color: var(--gray-text);
}

/* Ventajas */
.ventajas-section {
  background: rgba(255, 255, 255, 0.05);
}

.ventajas-card {
  background: white;
  border-radius: 24px;
  padding: 2.5rem;
  text-align: center;
  border-left: 4px solid var(--orange-accent);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.ventajas-card i {
  font-size: 2rem;
  color: var(--orange-accent);
  margin-bottom: 1rem;
}

.ventajas-card p {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--gray-text);
}

/* Master Tec */
.mastertec-section {
  background: rgba(255, 255, 255, 0.05);
}

.mastertec-content {
  max-width: 900px;
  margin: 0 auto 2rem;
  text-align: center;
}

.mastertec-content p {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 1rem;
  color: white;
}

.mastertec-content .destacado {
  font-size: 1.1rem;
  color: var(--orange-accent);
  font-weight: 600;
}

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

.proyecto-card {
  background: white;
  border-radius: 20px;
  padding: 1.8rem;
  text-align: center;
  transition: var(--transition);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.proyecto-card:hover {
  transform: translateY(-5px);
}

.proyecto-icon i {
  font-size: 2rem;
  color: var(--orange-accent);
  margin-bottom: 1rem;
}

.proyecto-card h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--primary-blue);
}

.proyecto-card p {
  color: var(--gray-text);
  font-size: 0.85rem;
}

/* Galería */
.galeria-section {
  background: rgba(255, 255, 255, 0.05);
}

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

.galeria-item {
  text-decoration: none;
}

.galeria-placeholder {
  background: white;
  border-radius: 16px;
  height: 250px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  cursor: pointer;
}

.galeria-placeholder:hover {
  transform: scale(1.02);
}

.galeria-placeholder i {
  font-size: 3rem;
  color: var(--red-accent);
}

.galeria-placeholder span {
  color: var(--gray-text);
  font-size: 0.9rem;
  font-weight: 500;
}

/* Equipos */
.equipos-section {
  background: rgba(255, 255, 255, 0.05);
}

.equipos-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.equipo-card {
  background: white;
  border-radius: 16px;
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.equipo-card:hover {
  transform: translateY(-5px);
}

.equipo-card i {
  font-size: 2rem;
  color: var(--red-accent);
  margin-bottom: 0.8rem;
}

.equipo-card h4 {
  font-size: 0.9rem;
  color: var(--primary-blue);
}

.contacto-info-footer {
  text-align: center;
  background: white;
  border-radius: 24px;
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contacto-info-footer h3 {
  margin-bottom: 0.5rem;
  color: var(--primary-blue);
}

.contacto-info-footer p {
  margin-bottom: 1.5rem;
  color: var(--gray-text);
}

.btn-primary {
  background: var(--primary-blue);
  border: none;
  padding: 12px 32px;
  border-radius: 40px;
  font-weight: 600;
  color: white;
  cursor: pointer;
  transition: 0.2s;
  display: inline-block;
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
  background: var(--primary-blue-dark);
}

/* Footer */
.footer {
  background: var(--primary-blue-dark);
  padding: 3rem 2rem 1rem;
  color: rgba(255, 255, 255, 0.8);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer h3, .footer h4 {
  color: white;
  margin-bottom: 1rem;
}

.footer p, .footer li {
  margin: 0.5rem 0;
  font-size: 0.85rem;
}

.footer a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}

.footer a:hover {
  color: white;
}

.footer ul {
  list-style: none;
}

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.8rem;
}

/* Botones flotantes */
.whatsapp-float {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: #25D366;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: 1000;
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  background: #20b359;
}

.back-to-top {
  position: fixed;
  bottom: 100px;
  right: 25px;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  background: white;
  border: none;
  color: var(--primary-blue);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

.back-to-top:hover {
  background: var(--primary-blue);
  color: white;
  transform: translateY(-3px);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .presentacion-grid,
  .proyectos-grid,
  .galeria-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .equipos-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 1.8rem;
  }
  
  .hero-content h2 {
    font-size: 1.2rem;
  }
  
  .section {
    padding: 3rem 1.5rem;
  }
  
  .presentacion-grid,
  .proyectos-grid,
  .galeria-grid {
    grid-template-columns: 1fr;
  }
  
  .equipos-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .back-to-top {
    width: 45px;
    height: 45px;
    font-size: 1.2rem;
    bottom: 85px;
  }
}

@media (max-width: 480px) {
  .equipos-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-otros {
    margin-top: 60px;
  }
}


/* ===== SECCIÓN CATÁLOGO PDF ===== */
.catalogo-section {
  background: rgba(255, 255, 255, 0.05);
}

.catalogo-container {
  max-width: 1000px;
  margin: 0 auto;
}

.catalogo-buttons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.btn-catalogo {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 12px 28px;
  border-radius: 40px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.95rem;
}

.btn-download {
  background: var(--primary-blue);
  color: white;
  border: none;
}

.btn-download:hover {
  background: var(--primary-blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

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

.btn-view:hover {
  background: var(--primary-blue);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.pdf-viewer {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  margin-bottom: 1.5rem;
}

.pdf-iframe {
  width: 100%;
  height: 600px;
  border: none;
}

.catalogo-info {
  text-align: center;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  color: var(--gray-text);
}

.catalogo-info i {
  color: var(--red-accent);
  margin-right: 0.5rem;
}

.catalogo-tamaño {
  font-size: 0.8rem;
  margin-top: 0.5rem;
  color: #6c757d;
}

/* Responsive para el visor PDF */
@media (max-width: 768px) {
  .pdf-iframe {
    height: 400px;
  }
  
  .btn-catalogo {
    padding: 10px 20px;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .pdf-iframe {
    height: 300px;
  }
  
  .catalogo-buttons {
    gap: 1rem;
  }
  
  .btn-catalogo {
    padding: 8px 16px;
    font-size: 0.8rem;
  }
}


/* ===== SECCIÓN CATÁLOGOS PDF ===== */
.catalogos-section {
  background: rgba(255, 255, 255, 0.05);
}

.catalogos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.catalogo-card {
  background: white;
  border-radius: 24px;
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.catalogo-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.catalogo-icon i {
  font-size: 3.5rem;
  color: var(--red-accent);
  margin-bottom: 1rem;
}

.catalogo-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--primary-blue);
}

.catalogo-card p {
  color: var(--gray-text);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.catalogo-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-pdf {
  background: var(--primary-blue);
  color: white;
  border: none;
  padding: 10px 24px;
  border-radius: 40px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Inter', sans-serif;
}

.btn-pdf:hover {
  background: var(--primary-blue-dark);
  transform: translateY(-2px);
}

.btn-download {
  background: white;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
  padding: 10px 24px;
  border-radius: 40px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

/* Modal PDF */
.pdf-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.pdf-modal-content {
  background: white;
  width: 90%;
  max-width: 1000px;
  height: 85%;
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pdf-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--primary-blue);
  color: white;
}

.pdf-modal-header h3 {
  margin: 0;
  font-size: 1.1rem;
}

.pdf-modal-close {
  font-size: 1.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.pdf-modal-close:hover {
  transform: scale(1.1);
}

.pdf-modal-body {
  flex: 1;
  padding: 0;
}

.pdf-modal-body iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Galería */
.galeria-section {
  background: rgba(255, 255, 255, 0.03);
}

.galeria-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

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

.galeria-img {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: #1a1a2e;
}

.galeria-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.galeria-item:hover .galeria-img img {
  transform: scale(1.05);
}

.galeria-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(17, 47, 175, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  color: white;
}

.galeria-item:hover .galeria-overlay {
  opacity: 1;
}

.galeria-overlay i {
  font-size: 2rem;
}

.galeria-overlay span {
  font-size: 0.8rem;
  text-align: center;
  padding: 0 1rem;
}

/* Responsive */
@media (max-width: 768px) {
  .catalogos-grid {
    grid-template-columns: 1fr;
  }
  
  .galeria-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
  
  .pdf-modal-content {
    width: 95%;
    height: 80%;
  }
  
  .catalogo-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn-pdf, .btn-download {
    width: 100%;
    justify-content: center;
  }
}