body {
  font-family: Arial, sans-serif;
  background-color: #121212;
  color: #fff;
  display: flex;
  justify-content: center;
  padding: 40px;
}

.container {
  max-width: 500px;
  width: 100%;
  background: #1e1e1e;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 0 15px #000;
}

h1 {
  text-align: center;
  margin-bottom: 25px;
}

label {
  display: block;
  margin: 10px 0 5px;
}

input, select, button {
  width: 100%;
  padding: 10px;
  margin-bottom: 15px;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
}

button {
  background-color: #00c853;
  color: white;
  cursor: pointer;
}

button:hover {
  background-color: #00b248;
}

.seats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}

.seat {
  padding: 10px;
  background-color: #424242;
  text-align: center;
  cursor: pointer;
  border-radius: 6px;
}

.seat.selected {
  background-color: #00c853;
  color: white;
}

.seat.booked {
  background-color: #757575;
  cursor: not-allowed;
}

.hidden {
  display: none;
}

#confirmation {
  margin-top: 20px;
  background: #263238;
  padding: 15px;
  border-radius: 8px;
}