body {
  background-color: #020A1C;
  color: #9ca6b6;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 2rem;
}
.container {
  background: #0e1932;
  max-width: 600px;
  margin: auto;
  padding: 2rem;
  border-radius: 8px;
}
h1, h2 {
  color: #ececec;
}
label {
  display: block;
  margin-top: 1rem;
}
input {
  background: #273040;
  color: rgba(255,255,255,.8);
  border: none;
  padding: 0.5rem;
  width: 100%;
  margin-top: 0.25rem;
  border-radius: 4px;
}
input:focus {
  background: #FFFFFF;
  color: #041a2a;
  outline: none;
}
button {
  background: #b62222;
  color: #ffe500;
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 4px;
  margin-top: 1rem;
  cursor: pointer;
}
a {
  color: #20a2ff;
  text-decoration: none;
}
a:hover {
  color: #10c8e7;
}
.result {
  margin-top: 1rem;
  font-size: 1.1rem;
}