html,
body {
  height: 100%;
  background-color: #333;
}

body {
  display: -ms-flexbox;
  display: flex;
  color: #fff;
  text-shadow: 0 .05rem .1rem rgba(0, 0, 0, .5);
  box-shadow: inset 0 0 5rem rgba(0, 0, 0, .5);
  padding-top: 0;
}

/*
 * Header
 */
  
.masthead {
  margin-bottom: 2rem;
}

.masthead-brand {
  margin-bottom: 0;
}

.nav-masthead .nav-link {
  padding: .25rem 0;
  font-weight: 700;
  color: rgba(255, 255, 255, .5);
  background-color: transparent;
  border-bottom: .25rem solid transparent;
}

.nav-masthead .nav-link:hover,
.nav-masthead .nav-link:focus {
  border-bottom-color: rgba(255, 255, 255, .25);
}

.nav-masthead .nav-link + .nav-link {
  margin-left: 1rem;
}

.nav-masthead .active {
  color: #fff;
  border-bottom-color: #fff;
}

@media (min-width: 48em) {
  .masthead-brand {
    float: left;
  }
  .nav-masthead {
    float: right;
  }
}

/*
 * Cover
 */
.cover { padding: 0 10rem;}
.cover-heading { letter-spacing: 8px; text-transform: uppercase; font-weight: 600;}
.lead { 
	max-width: 680px; 
	margin: 0; border-bottom: 1px solid #fff; 
	text-align: justify; padding: 1.2rem 0;
	font-size: 1.5rem; font-weight: 500;
}

/*
 * Footer
 */
.mastfoot {
  color: rgba(255, 255, 255, .5);
}

@media (max-width: 575.98px) {
	.cover { padding: 10px;}
	.cover-heading { letter-spacing: 4px; font-size:12px;}
	.lead{ font-size:14px;}	
}

@media (max-width: 767.98px) {
	.cover { padding: 10px; margin: auto;}
	.cover-heading { letter-spacing: 4px; font-size:16px;}
	.lead{ max-width: 340px;}
}