body {
  font-family: Arial, sans-serif;
  text-align: center;
  margin: 20px;
  background-image: url('fon.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

h1 {
  color: #333;
}

canvas, #houseCanvas, #lipp{
  display: block;
  margin: 10px auto;
  border: 2px solid black;
  background-color: rgba(174, 232, 255, 0.73);
}

input[type="button"] {
  background-color: #4CAF50;
  border: 2px solid black;
  padding: 10px 15px;
  margin: 5px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 5px;
}

input[type="button"]:hover {
  background-color: darkgreen;
}

label {
  font-weight: bold;
  margin-left: 10px;
}

input[type="number"] {
  padding: 5px;
  margin: 5px;
  border: 2px solid black;
  border-radius: 3px;
  text-align: center;
  width: 60px;
}

.container {
  width: 100%;
  margin: auto;
  padding: 20px;
  background: white;
  border-radius: 10px;
  box-shadow: 0 0 10px black;
}
.back-button {
  position: absolute;
  top: 10px;
  left: 10px;
  background-color: yellow;
  color: black;
  padding: 10px 15px;
  text-decoration: none;
  font-size: 16px;
  font-weight: bold;
  border: 2px solid black;
  border-radius: 5px;
  transition: background-color 0.3s ease, transform 0.2s;
}

.back-button:hover {
  background-color: #e74c3c;
  transform: scale(1.1);
}