body {
  font-family: Arial, sans-serif;
  background: #111827;
  color: #f9fafb;
  margin: 0;
  padding: 20px;
}

.container {
  max-width: 400px;
  margin: auto;
  text-align: center;
}

input {
  width: 90%;
  padding: 10px;
  margin-top: 10px;
  border-radius: 6px;
  border: none;
}

button {
  margin-top: 10px;
  padding: 10px 20px;
  background: #38bdf8;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background: #0ea5e9;
}

.card {
  background: #1f2937;
  padding: 15px;
  border-radius: 10px;
  margin-top: 20px;
}

.error {
  color: #f97373;
  min-height: 18px;
}

.hidden {
  display: none;
}

img {
  width: 80px;
  margin-top: 10px;
}