html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  background-color: #121212;
  color: #E0E0E0;
  font-family: 'Arial', sans-serif;
}

#app {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
}

form {
  background-color: #1E1E1E;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
  border: 1px solid #444;
}

.binaural-freq-wrapper {
  display: flex;
  flex-direction: column;
  margin-bottom: 15px;
}

.input--frequency {
  background-color: #2C2C2C;
  border: 1px solid #444;
  border-radius: 4px;
  color: #E0E0E0;
  padding: 10px;
  margin-bottom: 5px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.input--frequency:focus {
  border-color: #00BCD4;
  box-shadow: 0 0 8px #00BCD4;
  outline: none;
}

p {
  margin: 0;
  color: #B3B3B3;
  font-size: 0.9em;
}

.generator-buttons {
  display: flex;
  justify-content: space-between;
}

.generatorButton {
  background-color: #333;
  border: 1px solid #444;
  border-radius: 4px;
  color: #E0E0E0;
  padding: 10px 20px;
  cursor: pointer;
  transition: background-color 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.generatorButton:hover {
  background-color: #444;
  border-color: #00BCD4;
  box-shadow: 0 0 8px #00BCD4;
}

.generatorButton:active {
  background-color: #555;
  border-color: #00BCD4;
  box-shadow: 0 0 12px #00BCD4;
}

.generatorButton:focus {
  outline: none;
  box-shadow: 0 0 8px #00BCD4;
}