body {
    font-family: "Source Sans Pro","Helvetica Neue",Helvetica,Arial,sans-serif;
}

.btn-outline {
  color: black;
  font-size: 20px;
  border: solid 2px black;
  background: transparent;
  transition: all 0.3s ease-in-out;
  margin-top: 15px;
}
.btn-outline:hover,
.btn-outline:focus,
.btn-outline:active,
.btn-outline.active {
  color: #18BC9C;
  background: gray;
  border: solid 2px black;
}

.vertical-center {
  min-height: 100%;  /* Fallback for browsers do NOT support vh unit */
  min-height: 70vh; /* These two lines are counted as one :-)       */

  display: flex;
  align-items: center;
}

header {
  text-align: left;
  background: white;
  color: white;
}
header .container {
  padding-top: 50px;
  padding-bottom: 50px;
}
header img {
  display: block;
  margin: 0 auto 20px;
}
@media (min-width: 768px) {
  header .container {
    padding-top: 55px;
    padding-bottom: 25px;
  }
}
.navbar-custom {
  background: #2C3E50;
  text-transform: uppercase;
  font-weight: 400;
  border: none;
}
.navbar-custom .navbar-brand {
  color: white;
}
.navbar-custom .navbar-brand:hover,
.navbar-custom .navbar-brand:focus,
.navbar-custom .navbar-brand:active,
.navbar-custom .navbar-brand.active {
  color: white;
}
.navbar-custom .navbar-nav {
  letter-spacing: 1px;
}
.navbar-custom .navbar-nav li a {
  color: white;
}
.navbar-custom .navbar-nav li a:hover {
  color: #18BC9C;
}
.navbar-custom .navbar-nav li a:focus,
.navbar-custom .navbar-nav li a:active {
  color: white;
}
.navbar-custom .navbar-nav li.active a {
  color: white;
  background: #18BC9C;
}
.navbar-custom .navbar-nav li.active a:hover,
.navbar-custom .navbar-nav li.active a:focus,
.navbar-custom .navbar-nav li.active a:active {
  color: white;
  background: #18BC9C;
}
.navbar-custom .navbar-toggle {
  color: white;
  text-transform: uppercase;
  font-size: 10px;
  border-color: white;
}
.navbar-custom .navbar-toggle:hover,
.navbar-custom .navbar-toggle:focus {
  background-color: #18BC9C;
  color: white;
  border-color: #18BC9C;
}
@media (min-width: 768px) {
  .navbar-custom {
    padding: 15px 0;
    -webkit-transition: padding 0.3s;
    -moz-transition: padding 0.3s;
    transition: padding 0.3s;
  }
  .navbar-custom .navbar-brand {
    font-size: 25px;
    -webkit-transition: all 0.3s;
    -moz-transition: all 0.3s;
    transition: all 0.3s;
  }
  .navbar-custom.affix {
    padding: 0px 0;
  }
  .navbar-custom.affix .navbar-brand {
    font-size: 18px;
  }
}

.no-padding {
  padding: 0;
}
.no-gutter > [class*='col-'] {
  padding-right: 0;
  padding-left: 0;
}
.portfolio-box {
  position: relative;
  display: block;
  max-width: 650px;
  margin: 0 auto;
}
.portfolio-box .portfolio-box-caption {
  color: white;
  opacity: 0;
  display: block;
  background: rgba(24, 36, 56, 0.7);
  position: absolute;
  bottom: 0;
  text-align: center;
  width: 100%;
  height: 100%;
  -webkit-transition: all 0.35s;
  -moz-transition: all 0.35s;
  transition: all 0.35s;
}
.portfolio-box .portfolio-box-caption .portfolio-box-caption-content {
  width: 100%;
  text-align: center;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}
.portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-category,
.portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-name {
  font-family: 'Open Sans', 'Helvetica Neue', Arial, sans-serif;
  padding: 0 15px;
}
.portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-category {
  text-transform: uppercase;
  font-weight: 600;
  font-size: 14px;
}
.portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-name {
  font-size: 18px;
}
.portfolio-box:hover .portfolio-box-caption {
  opacity: 1;
}
.portfolio-box:focus {
  outline: none;
}
@media (min-width: 768px) {
  .portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-category {
    font-size: 16px;
  }
  .portfolio-box .portfolio-box-caption .portfolio-box-caption-content .project-name {
    font-size: 22px;
  }
}