body {
  margin:0;
  font-family: Arial, sans-serif;
  background:#111;
  color:#fff;
}
.top {
  background:#000;
  padding:15px;
}
.container {
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo {
  height:90px;
}
nav a {
  color:#fff;
  margin-left:15px;
  text-decoration:none;
}
.hero {
    
  filter: brightness(1.15) contrast(1.05);
  background:url("assets/hero.jpg") center/cover no-repeat;
  height:80vh;
  position:relative;
}
.overlay {
  background:rgba(0,0,0,.35);
  height:100%;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  text-align:center;
}
.btn {
  background:#c62828;   /* deep red */
  color:#fff;
  padding:14px 24px;
  text-decoration:none;
  margin-top:20px;
}
.section {
  padding:60px 20px;
  text-align:center;
}
.alt {
  background:#1b1b1b;
}
footer {
  background:#000;
  text-align:center;
  padding:20px;
}
.hero-title {
  font-size: 3.5rem;
  letter-spacing: 3px;
  margin-bottom: 10px;
}