body {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #333;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
  height: 100vh;
  background-size: cover;
  background-position: center;
}

body * {
  box-sizing: border-box;
}

.logo {
  max-width: 300px;
  margin-bottom: 20px;
}

header {
  width: 100%;
  background-color: #333;
  color: gray;
  text-align: left;
  margin-top: 0;
  padding: 10px 0;
}

header h1 {
  margin: 0;
  padding: 0;
  display: inline;
  color: white;
  margin-left: 20px;
} 

header h1 a {
  color: white;
  text-decoration: none;
}

footer {
  margin-top: auto;
  width: 100%;
  bottom: 0;
  background-color: #055043f5;
  color: white;
  text-align: right;
  padding: 10px 30px;
  font-size: 14px;
}

footer a {
  color: white;
  text-decoration: none;
  margin: 0 10px;
}

footer a:hover {
  text-decoration: underline;
}

article {
  width: 90%;
  margin: 20;
  max-width: 70%;
  padding: 20px;
}

@media (max-width: 768px) {
  article {
    max-width: 80%;
  }
}

@media (max-width: 480px) {
  article {
    max-width: 100%;
  }
}

footer {
  clear: both;
  margin-top: auto;
  display: block;
  background-color: gray;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}