* {
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: #111;
  color: white;
}

.card {
  width: min(90%, 400px);
  background: #1c1c1c;
  padding: 28px;
  border-radius: 16px;
  border: 1px solid #333;
}

h1 {
  margin-top: 0;
}

label {
  display: block;
  margin-top: 20px;
  margin-bottom: 8px;
}

input {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid #444;
  background: #111;
  color: white;
}

button {
  width: 100%;
  margin-top: 16px;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: white;
  color: black;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  opacity: 0.85;
}

#result {
  margin-top: 18px;
  word-break: break-word;
}

a {
  color: white;
}