body {
  font-family: 'Segoe UI', sans-serif;
  background: #121212;
  margin: 0;
  padding: 0;
  color: #f0f0f0;
}

.container {
  max-width: 600px;
  margin: 50px auto;
  background: #1e1e1e;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

h2 {
  text-align: center;
  margin-bottom: 20px;
  color: #ffffff;
}

input {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  margin-bottom: 15px;
  border: 1px solid #444;
  border-radius: 6px;
  background-color: #2c2c2c;
  color: #fff;
}

button {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  background-color: #0d6efd;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
}

button:hover {
  background-color: #084cdf;
  transform: scale(1.02);
}

.results {
  margin-top: 25px;
  display: grid;
  gap: 15px;
}

.card {
  background: #222;
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
  font-family: monospace;
  font-size: 16px;
  transform: scale(0.95);
  animation: scaleIn 0.2s ease forwards;
  color: #00ffcc;
}

@keyframes scaleIn {
  to {
    transform: scale(1);
  }
}

.error {
  color: #ff4d4d;
  text-align: center;
  margin-top: 10px;
}
.output-box {
  border: 1px solid white;
  border-radius: 10px;
  padding: 20px;
  margin-top: 30px;
  background-color: #181818;
}
.output-box button {
  width: 100%;
  padding: 10px;
  font-size: 15px;
  background-color: #28a745;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
}

.output-box button:hover {
  background-color: #218838;
  transform: scale(1.02);
}