body {
  background: #f6f1e7 url('https://www.transparenttextures.com/patterns/paper-fibers.png');
  font-family: 'Georgia', serif;
  color: #2d2d2d;
  padding: 2em;
}
.container {
  max-width: 600px;
  margin: auto;
  background: #fffaf3;
  padding: 2em;
  border: 2px solid #bfa87f;
  border-radius: 1em;
  box-shadow: 0 0 20px rgba(0,0,0,0.1);
}
h1 {
  text-align: center;
  font-size: 1.5em;
  margin-bottom: 1em;
}
.controls {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1em;
}
button {
  width: 100%;
  padding: 0.8em;
  background-color: #7c6f50;
  color: white;
  border: none;
  border-radius: 0.5em;
  cursor: pointer;
  margin-top: 1em;
  font-size: 1em;
}
button:hover {
  background-color: #5e543c;
}
#result {
  margin-top: 1em;
  text-align: center;
  font-size: 1.2em;
  font-weight: bold;
}