:root {
  --test: magenta;
  --text-color: #ffffff;
  --text-link: #d6d6d6;
  
  --font-sans: 'Rubik', sans-serif;
  --font-serif: 'Cardo', serif;
    
  --1er: #212529;
  --2do: #343a40;
  --3er: #495057;
  --4to: #6c757d;    

  --width-1: 890px;
  --width-2: 760px;
  --width-logo: 500px;

  --deg: 90deg;
}



*{
    padding: 0;
    margin: 0;
    text-decoration: none;
    list-style: none;
    box-sizing: border-box;
    scroll-behavior: smooth;
}
body {
  background: linear-gradient(rgba(5,7,9,.75), rgba(9,7,5,.75)), url(media/fondo.jpg) no-repeat center center fixed;
  background-size: cover;
  font-family: sans-serif;
  width: 100vw;
}

/* PAGINA DE INICIO */

.intro {
  background: url(media/fondo-intro.jpg) no-repeat center center fixed;
  background-size: cover;
  height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
}
.intro-logo {  
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 0;
  width: var(--width-logo);
  height: calc(var(--width-logo)/3.3);
  background: linear-gradient(var(--deg), var(--1er),var(--3er));
  text-align: center;
  box-shadow: 0px 0px 10px  var(--1er);
}
.intro-logo:hover {
  background: linear-gradient(var(--deg), var(--1er),var(--3er));
  transform: scale(1.03);
  background-color: var(--1er);
  transition: .5s;
}
.intro-logo-img {
  height: 90%;  
}
.intro-text {
  color: var(--text-color);
  font-family: 'Lexend', sans-serif;
  font-size: 60px;
  text-shadow: 0px 0px 10px  var(--1er);
  text-transform: uppercase;
}
.intro-scroll {
  color: var(--text-color);
  position: absolute;
  bottom: 60px;
  width: 50px;
  height: 50px;
  background: linear-gradient(var(--deg), var(--1er),var(--3er));
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0px 0px 10px  var(--1er);
  border-radius: 5px ;
  font-size: 25px;
}
.intro-scroll:hover {
  background: linear-gradient(var(--deg), var(--1er),var(--3er));
  transform: scale(1.1);
  background-color: var(--1er);
  transition: .5s;
}

/* NVAEGADOR */

.header {
  background: linear-gradient(var(--deg), var(--1er),var(--3er));
  height: 80px;
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  z-index: 100;
  position: sticky ;
}
.nav {
  display: flex;
  justify-content: space-between;
  max-width: 992px;
  margin: 0 auto;
}
.nav-link {
  color: var(--text-color);
  text-decoration: none;
}
.logo {
  font-size: 30px;
  font-weight: bold;
  padding: 0 40px;
  line-height: 80px;
  height: 70px;
}
.nav-menu {
  display: flex;
  margin-right: 40px;
  list-style: none;
  right: 1000px;
}
.nav-menu-item {
  margin: 0 10px;
  line-height: 80px;
  text-transform: uppercase;
  width: max-content;
}
.nav-menu-link {
  font-size: 22px;
  padding: 8px 12px;
  border-radius: 3px;
  line-height: 80px;
  align-items: center;
  margin: 0 5px;
  transition: font-size .5s ease;
}
.nav-menu-link:hover {
  font-size: 24px;
}
.nav-toggle {
  color: var(--text-color);
  background: none;
  border: none;
  font-size: 30px;
  padding: 0 20px;
  line-height: 60px;
  cursor: pointer;
  display: none;
}

/* BANNERS */

.banners {
  display: flex;
  align-items: center;
  flex-flow: row wrap;
  justify-content: center;
  max-width: 1000px;
  margin: auto;
  min-height: calc(95vh - 70px);
}
.banner {
  min-width: 400px;
  height: 40%;
  min-height: 250px;
  max-height: 300px;
  margin: 5px;
  background-color: var(--3er);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.banner-title {
  font-family: 'Lexend', sans-serif;
  font-size: 30px;
  color: var(--text-color);
  text-transform: uppercase;
  text-shadow: 0px 0px 10px  var(--1er);
}
#banner1 {
  background: linear-gradient(rgba(5,7,9,.3), rgba(9,7,5,.3)), url(media/fondo-obras.jpg) no-repeat center center ;  
  background-size: 150%;
  transition: background-size  .5s ease;  
}
#banner2 {
  background: linear-gradient(rgba(5,7,9,.3), rgba(9,7,5,.3)), url(media/fondo-gas&oil.jpg) no-repeat center center ;  
  background-size: 150%;
  transition: background-size  .5s ease;  
}
#banner3 {
  background: linear-gradient(rgba(5,7,9,.3), rgba(9,7,5,.3)), url(media/fondo-logistica.jpg) no-repeat center center ;  
  background-size: 150%;
  transition: background-size  .5s ease;  
}
#banner4 {
  background: linear-gradient(rgba(5,7,9,.5), rgba(9,7,5,.5)), url(media/fondo-mantenimiento.jpg) no-repeat center center ;  
  background-size: 150%;
  transition: background-size  .5s ease;  
}
#banner1:hover, #banner2:hover, #banner4:hover, #banner3:hover {
  background-size:100% ;
}
.banner-scroll {
  display:flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 60px;
}
.banner-scroll-link {
  display:block;
  color: var(--text-color);
  position:relative;
  left: 1px;
  width: 50px;
  height: 50px;
  background: linear-gradient(var(--deg), var(--1er),var(--3er));
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0px 0px 10px  var(--1er);
  border-radius: 5px ;
  font-size: 25px;
}
.banner-scroll-link:hover {
  background: linear-gradient(var(--deg), var(--1er),var(--3er));
  transform: scale(1.1);
  background-color: var(--1er);
  transition: .5s;
}

/* SUB NAVEGADOR */

.subNav {
position: sticky;
top: 80px;
z-index: 50;
background: linear-gradient(var(--deg), var(--1er),var(--3er));
}
.subNav-list {
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
}
.subNav-item {
  display: flex;
  justify-content: center;
  text-align: center;
  height: 30px;
  min-width: 200px;
  margin: 1px 3px;
}
.subNav-link {
  color: var(--text-color);
  text-transform: uppercase;
  font-size: 14px;
  margin: auto 5px;
  transition: font-size .5s ease;
}
.subNav-link:hover {
  font-size: 16px;
}

  /* INFORMACION DE LA  EMPRESA */

  .info-main{
    max-width: 1200px;
    padding-top: 100px ;
    margin: auto auto;
    color: var(--text-color);
    display: flex;
    justify-content: center;
    flex-flow: row wrap;
    align-items: center;
  }
  .info-section {    
    min-width: 400px;
    max-width: 90vw;
    min-height: 230px;
    display:flex;
    align-items: center;
    justify-content: center;  
    text-align: center;
    padding: 3%;
    flex-direction: column;
    background-color: var(--2do);
    opacity: .8;
    margin: 40px;
    position: relative;    
  }
  #infoSection8 .info-list  {
    display: flex;
    flex-flow: row wrap;
    justify-content: center;
    align-items: center;
  }
  .info-section:hover {
    background-color: var(--3er);
    transition: .3s;
  }
  .opened {
    width: 57%;
    height: none;
    background-color: var(--3er);
    transition: .3s;
  }
  .info-title {
    font-size: 30px;
    text-transform: uppercase;
    text-align: center;
    font-family: var(--font-serif);
  }
  .info-text {
    font-size: 16px;
    line-height: 30px;
    font-family: 'Montserrat', sans-serif;
  }
  .info-text-container {
    display: inline-block;
  }  
  .info-item {
    text-align: center;
    margin: 20px;
    font-family: 'Montserrat', sans-serif;
  }  
  .control-solutions {
    font-family: var(--font-serif);
    text-transform: uppercase;
    text-shadow: 0 0 50px  var(--2do) ;
  }

  /* footer  */
      
.footer {
  color: var(--text-color);
  background: linear-gradient(270deg, var(--1er),var(--3er));
  padding: 2%;
  align-items: center;
}
.footer-title {  
  font-size: 23px;
  text-transform: uppercase;
  text-align: center;
}
.social {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: auto;
  margin: auto;
}
.social-list{
  margin: 10px;
}
.social-items{
  margin: 10px 5px;
  position: relative;
  text-align: center;
}
.social-links{
  color: rgb(201, 194, 255);
  font-size: 15px;
  padding: 7px 10px;
  transition: .1s;
}
.social-links:hover{
  color: rgb(85, 67, 247);
  font-size: 16px;
}
 .copy {  
  font-size: 14px;
  width: 100%;
  text-align: center;
  margin-top: 2%;
 }

/* MOBILE */

@media (max-width: 768px) {
  body {
    min-width: 430px;
    max-width: 768px;
  }

  /* PAGINA DE INICIO  */

  .intro {
    height: 105vh;
  }
  .intro-logo {
    width: 250px;
  }
  .intro-logo img {
    width: 240px;
    height: 90px;
  }
  .intro-text {
    font-size: 40px;
  }

  /* NAVEGADOR */

  .header {
  height: 60px;
  }
  .social {
    display: inline-block;
    text-align: center;  
  }
  .logo {
    font-size: 25px;
    padding: 0 20px;
    line-height: 60px;
    height: 50px;
  }
  .nav-menu {
    flex-direction: column;
    align-items: center;
    margin: 0;
    background-color: var(--2do);
    position: fixed;
    top: 60px;
    width: 100%;
    padding: 40px 0;
    height: calc(100% - 60px);
    overflow-y: auto;
    left: 100%;
    transition: left 0.3s;
  }
  .nav-menu-item {
    line-height: 70px;
  }
  .nav-toggle {
    display: block;
  }
  .nav-menu_visible {
    left: 0;
  }
  .nav-toggle:focus:not(:focus-visible) {
    outline: none;
  }

  /* BANNERS  */

  .banner {
    width: 80%;
    height: 65%;
    max-height: none;
  }    

  /* SUB NAVEGADOR */

  .subNav{
    top: 59px;
  }
}