body {
  font-family: Arial, sans-serif;
  background-color: #111;
  color: #fff;
  margin: 0;
  padding: 20px;
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 20px;
}

h1 {
  font-size: 36px;
  margin-bottom: 10px;
}

.scanner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.card {
  background-color: #1f1f1f;
  padding: 20px;
  border-radius: 10px;
  text-align: center;
  text-decoration: none;
  color: white;
  border: 1px solid #333;
  transition: background-color 0.3s, transform 0.2s;
}

.card:hover {
  background-color: #272727;
  transform: scale(1.03);
}

.scan-form {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.scan-form input,
.scan-form button {
  padding: 12px;
  font-size: 16px;
  border: none;
  border-radius: 8px;
}

.scan-form input {
  background-color: #222;
  color: #fff;
  border: 1px solid #444;
}

.scan-form button {
  background-color: #3b82f6;
  color: white;
  cursor: pointer;
  transition: background-color 0.3s;
}

.scan-form button:hover {
  background-color: #2563eb;
}

.error {
    color: red;
    margin-top: 10px;
}
img { width: 250px; height: 50px; }