---

body {
  font-family: Arial, sans-serif;
  text-align: center;
  background-color: #f4f4f9;
  padding-top: 30px;
}

.login-fields {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 210px;
  margin: 0 auto 15px auto;
}

.login-fields input {
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.hint {
  font-size: 0.9em;
  color: #555;
  margin-bottom: 15px;
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.grid, .fragments {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  width: 206px;
}

.grid {
  height: 206px;
  border: 2px dashed #ccc;
  border-radius: 8px;
  padding: 4px;
  background: #fff;
}

.slot {
  width: 98px;
  height: 98px;
  border: 1px solid #ddd;
  background: #f9f9f9;
}

.fragment {
  width: 98px;
  height: 98px;
  border: 2px solid #007bff;
  cursor: grab;
}

#message {
  font-weight: bold;
  margin: 10px 0;
}

.success { color: green; }
.error { color: red; }

.login-btn {
  padding: 10px 30px;
  background: #007bff;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
}

.login-btn:hover {
  background: #0056b3;
}