body {
  margin: 0;
  background-color: #000;
  color: #888;
  font-family: Arial, sans-serif;
}
#banner {
  width: 100%;
  height: 200px;
  background-color: #000;
  background-image: url('images/banner_dadwell-net.jpg');
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  position: relative;
}
.top-nav {
  position: absolute;
  bottom: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.6);
  text-align: center;
  padding: 10px 0;
}
.top-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.top-nav li {
  display: inline-block;
  margin: 0 15px;
}
.top-nav a {
  color: #888;
  text-decoration: none;
  font-size: 1.1em;
  transition: color 0.3s, text-shadow 0.3s;
}
.top-nav a:hover {
  color: #00bfff;
  text-shadow: 0 0 6px #00bfff;
}
.top-nav a.active {
  color: #00bfff;
  font-weight: bold;
  text-shadow: 0 0 10px #00bfff, 0 0 20px #00bfff;
}
#main {
  padding: 20px;
  box-sizing: border-box;
  align-items: center;
}
#footer {
  width: 100%;
  text-align: center;
  padding: 8px;
  font-size: 0.8em;
  background-color: #000;
  color: #888;
}
#footer a {
  color: #888;
  text-decoration: none;
  transition: color 0.3s, text-shadow 0.3s;
}
#footer a:hover {
  color: #00bfff;
  text-shadow: 0 0 6px #00bfff, 0 0 12px #00bfff;
}
.construction-image {
  position: relative;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  align-items: center;
  overflow: hidden;
}
.construction-image img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  align-items: center;
  margin: 0 auto;
}
.construction-image .overlay-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #888;
  text-align: center;
  font-size: 1.4em;
  font-weight: bold;
  background: none;
  padding: 0;
  border-radius: 0;
}
.contact-link {
  text-align: center;
  margin-top: 30px;
}
.contact-link a {
  color: #888;
  text-decoration: none;
  font-size: 1.2em;
  transition: color 0.3s, text-shadow 0.3s;
}
.contact-link a:hover {
  color: #00bfff;
  text-shadow: 0 0 6px #00bfff, 0 0 12px #00bfff;
}
@media (max-width: 768px) {
  .construction-image {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
  }
  .construction-image .overlay-text {
    font-size: 1.1em;
  }
  .top-nav a {
    font-size: 1em;
  }
  .top-nav li {
    margin: 0 10px;
  }
}
@media (max-width: 480px) {
  .construction-image .overlay-text {
    font-size: 1em;
  }
  .top-nav {
    padding: 8px 0;
  }
  .top-nav a {
    display: block;
    margin: 6px 0;
  }
  .top-nav li {
    display: block;
    margin: 4px 0;
  }
}