html, body {margin: 0; padding: 0; height: 100%; text-align: center;}
section {min-height: 100%;}
a {text-decoration: none;}
li {list-style-type: none;}

h1, h2, h3, a {font-family: 'Roboto', sans-serif; font-weight: 500; color: #494949; text-transform: uppercase;}

h2  {color: #517177;}
h3 {font-size: 40px; padding-top: 8%; margin-bottom: 5px; margin-top: 0;}
h4, p  {font-family: 'Roboto Slab', serif;}

hr {width: 30px; height: 3px; background: #494949; border: 0; margin: 0 auto 0 auto;}
li, #Logo, .fa-bars {transition: all 300ms; -webkit-transition: all 300ms; -moz-transition: all 300ms; -o-transition: all 300ms;}

#Logo_big {margin: 10% auto 0 auto;}

.fa-bars {display: none;}

/* HEADER ************************/

header {
  width: 100%;
  height: 65px;
  position: fixed;
  top: 10px;
  left: 10px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0.1);
  z-index: 1;
  opacity: 0.5;
}

#Logo {
  width: 50px;
  float: left;
  margin: 10px 0 0 50px;
}

#Logo:hover {
  opacity: 0.5;
}

#Logo img {
  width: 100%;
}

header nav {
  float: right;
  margin: 10px 50px 0 0;
}

header nav ul li {
  float: left;
  margin-left: 25px;
  opacity: 1.0;
}

header nav ul li a {
  font-size: 16px;
}

header nav ul li:hover {
  padding-top: 5px;
}


/* HOME ************************/

#home {
  background: url(../img/landing.jpg);
  /* background: #DEDEDE; */
  background-position: center center;
  background-size: cover;
  background-attachment: fixed;
}

#Logo_big {
  margin: 100px auto 0 auto;
  width: 30%;
}

hr {width: 1px; height: 1px; background: #808080; border: 0; margin: 0 auto 0 auto;}

#home img {
  width: 100%;
}
#home h1 {
  margin: 0 auto 0 auto;
  font-size: 85px;
}

#home h2 {
  margin: 0 auto 0 auto;
  font-size: 25px;
}

/* ABOUT ************************/

#about {
  background: #EEE;
  background-position: center center;
  background-size: cover;
  background-attachment: fixed;
}

#about h3 {
  font-size: 30px;
}

#about h4 {
  margin: 0 auto 0 auto;
  font-size: 15px;
}

#about p {
  margin: 10px auto 50px auto;
  width: 80%;
  text-align: justify;
}

/* CONTACT ************************/

#contact {
  background: #EEE;
  background-position: center center;
  background-size: cover;
  background-attachment: fixed;
}

#contact h3 {
  font-size: 30px;
}

#contact hr {
  width: 50px;
  height: 3px;
  background: #808080;
}

#contact h4 {
  margin: 0 auto 0 auto;
  font-size: 15px;
}

/* MEDIA QUERIES ***************/
/* TABLETS */
@media screen and (max-width: 1024px) {
    header {
      height: auto;
    }
    #Logo {
      width: 30px;
      margin-top: 5px;
    }
    header nav {
      margin-top: 0;
    }
    header nav ul li {
      font-size: 12px;
    }

    #Logo_big {
      margin: 10% auto 0 auto;
      width: 40%;
    }

    #home h1 {
      font-size: 50px;
    }
    #home h2 {
      font-size: 20px;
    }
    h3 {
      padding-top: 12%;
    }
    #about p {
      width: 60%;
    }
}

/* MOBILE */
@media screen and (max-width: 480px) {

  header nav {
    margin: 0;
    float: none;
  }

  .fa-bars {
    font-size: 17px;
    display: inline-block;
    width: 100%;
    cursor: pointer;
    text-align: right;
    float: right;
    margin: -25px 30px 0 0;
  }
  .fa-bars:hover {
    opacity: 0.5;
  }

  header nav ul {
    height: 0;
    overflow: hidden;
    margin: 0;
    padding: 0;
    width: 100%;
  }

  header nav ul.open {
    height: auto;
  }

  header nav ul li {
    width: 100%;
    padding: 5px 0;
    margin: 0;
    font-size: 11px;
    border-top: 1px solid #dddddd;
  }

  header nav ul li:hover  {
    background-color: #eee;
  }

  #Logo_big {
    margin: 30% auto 0 auto;
    width: 50%;
  }

  #home img {
    width: 100%
  }

  #home h1 {
    font-size: 35px;
  }
  #home h2 {
    font-size: 12px;
  }

  #contact h3 {
    margin: 100px auto 0 auto;
  }
}