body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #0b0b0b;
  color: #fff;
}
.container {
  padding: 40px 20px;
  max-width: 600px;
  margin: auto;
  text-align: center;
}
h1 {
  color: #ff3b3b;
  font-size: 2.5em;
}
button {
  background-color: #ff3b3b;
  border: none;
  color: white;
  padding: 15px 30px;
  font-size: 1em;
  cursor: pointer;
  border-radius: 5px;
  margin-top: 20px;
}
button:hover {
  background-color: #e60000;
}
a {
  color: #ff3b3b;
  text-decoration: none;
}
.cover-placeholder {
  margin: 2em auto;
  width: 300px;
  height: 450px;
  border: 3px solid #e10600;
  background: linear-gradient(45deg, #330000, #660000);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #e10600;
  font-weight: bold;
  font-size: 1.2rem;
  user-select: none;
}