body {
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  margin: 0;
  padding: 0;
}

header {
  background: #2d3436;
  color: white;
  padding: 1rem;
  text-align: center;
}

.apartment-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  padding: 2rem;
}

.apartment {
  background: white;
  border: 1px solid #ccc;
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
}

.modal {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  justify-content: center;
  align-items: center;
}

.modal-content {
  background: white;
  padding: 2rem;
  width: 300px;
  border-radius: 5px;
}

.modal-content form label {
  display: block;
  margin-bottom: 1rem;
}

button {
  margin-top: 1rem;
}

.apartment-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  padding: 2rem;
}

.apartment-card {
  background: white;
  padding: 1rem;
  border: 1px solid #ddd;
  cursor: pointer;
  transition: background 0.3s;
}

.apartment-card:hover {
  background: #f1f1f1;
}

.modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  display: none;
  justify-content: center;
  align-items: center;
}

.modal-content {
  background: white;
  padding: 2rem;
  width: 400px;
  border-radius: 5px;
}