html,
body {
  font-family: arial, sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 23px;
}

* {
  box-sizing: border-box;
}

body {
  background-image: url("images/gray-spec-bg.jpg");
  background-position: 50%;
  margin: 0;
  color: #212529;
  text-align: left;
}

section {
  padding: 5rem 0;
}

.container {
  margin: 0 auto;
  max-width: 1140px;
  padding-left: 1rem;
  padding-right: 1remz ;
  width: 100%;
}

h1 {
  font-size: 4.5rem;
  line-height: 6.5rem;
  text-align: center;
  text-transform: uppercase;
}

h2 {
  font-size: 2rem;
  line-height: 4rem;
  text-transform: uppercase;
}

@media only screen and (max-width: 991px){ 
  h1 {
    font-size: 3.5rem;
    line-height: 4.5rem;
  } 
}

@media only screen and (max-width: 767px){ 
  h1 {
    font-size: 1.75rem;
    line-height: 2.5rem;
  }

  h2 {
    font-size: 1.5rem;
    line-height: 2.5rem;
  }

  section {
    padding: 3rem 0;
  }
}

/* HEADER */
#main_header {
  background: rgba(0,0,0,0.5);
  align-items: center;
  display: flex;
  justify-content: space-between;
  left: 0;
  padding: 15px 29px;
  position: fixed;
  top: 0;
  width: 100%;
}

#main_header .logo img {
  width: 85px;
}

#main_header nav a {
  color: #fff;
  font-size: 1.125rem;
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
}


/* BODY */
#hero_section {
  background-color: #03050c;
  background-image: url("images/pattern-corrugated-dark.png");
  background-position: top center;
  background-size: 35px 32px;
  color: #fff;
  padding: 12rem 0 7rem;
}

@media only screen and (max-width: 767px){
  #hero_section {
    padding: 9rem 0 5rem;
  }
}

.job_listings {
  margin-top: 2rem;
}