body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  overflow-x: hidden;
}

header {
  background: #111;
  color: white;
  padding: 0px 0px;
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex !important;
  align-items: center;
  justify-content: space-between;
}


h2 {
  color: #004080;
  text-align: center;
}

ul {
  list-style: disc;
  padding-left: 20px;
}

p,
li {
  text-align: justify;
}

.presentacion {
  display: flex;
  height: 100vh;
}

.presentacion .izquierda {
  flex: 1;
  width: 100vw;
  height: 100vh;
  background: url("../img/header.jpg") no-repeat center center;
  background-size: cover;
  background-color: black;
  display: flex;
  justify-content: center;
  align-items: center;
}

.presentacion .izquierda img {
  width: 35%;
  height: auto;
  object-fit: contain;
  filter: brightness(1);
  margin-right: -195px;
  margin-top: -130px;

}

.presentacion .derecha {
  flex: 0.4;
  background-color: black;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 20px;
}

.presentacion .derecha h2 {
  font-size: 2em;
  margin: 10px 0;
}

.clientes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 20px;
  align-items: center;
  justify-items: center;
  margin-top: 40px;
}

.clientes img {
  max-width: 100px;
  height: auto;
  object-fit: contain;
  filter: grayscale(0.2);
}

@media (max-width: 768px) {
  .presentacion .izquierda {
    height: 130vh;
  }

  .presentacion {
    flex-direction: column;
    height: auto;
  }

  .presentacion .izquierda,
  .presentacion .derecha {
    flex: none;
    width: 100%;
    height: 316px;
  }

  .presentacion .izquierda img {
    width: 50%;
    /* margin: 20px auto; */
    filter: brightness(1);
    margin-right: -90px;
    margin-top: -80px;
  }

  .presentacion .derecha {
    padding: 40px 20px;
  }

  footer .row {
    flex-direction: column !important;
  }

  footer .col-md-8,
  footer .col-md-4 {
    width: 100% !important;
    text-align: center !important;
  }

  .clientes {
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr)) !important;
  }
}

img {
  image-rendering: auto;
  filter: contrast(105%) brightness(105%) saturate(110%);
}

<style>.hero {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

@media (max-width: 768px) {
  .hero {
    height: 100vh;
  }

  .hero img {
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    object-position: center;
  }
}

@media (max-width: 768px) {
  .presentacion .derecha {
    padding: 20px;
    height: auto;
    min-height: 100px;
  }

  .presentacion .derecha h2,
  .presentacion .derecha h1 {
    font-size: 1.5rem;
    margin: 10px 0;
  }
}

.logo-header {
  width: 150px;
  height: auto;
  filter: brightness(1);
}

@media (max-width: 768px) {
  .logo-header {
    width: 100px;
  }
}

@media (max-width: 768px) {
  footer .row {
    text-align: center;
  }

  footer .col-md-8,
  footer .col-md-4 {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  footer .col-md-8 a {
    justify-content: center;
  }
}

section {
  padding: 35px 40px;
  scroll-margin-top: 180px !important;
}

[id] {
  scroll-margin-top: 180px !important;
}

@media (max-width: 768px) {
  section {
    padding: 35px 40px;
    scroll-margin-top: 350px !important;
  }
  
  [id] {
    scroll-margin-top: 350px !important;
  }
  
}

.corporativo
{
  flex: 0.4;
  background-color: black;
  color: white !important;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 43px;
}
.corporativo-texto h2 {
  font-size: 1.8rem;
  color: antiquewhite;
  margin: 0;
  text-align: center;
}

@media (max-width: 768px) {
  .corporativo-texto h2 {
    font-size: 1.5rem;
  }
}