* {
  box-sizing: border-box;
}

body {
  font-family: monospace;
  padding: 20px;
  background-color: #000000;
  color: #d1d1d1;
  max-width: 1200px;
  margin: 0 auto;
}

h1 {
  font-size: 1.5rem;
  margin: 0 0 20px 0;
}

button {
  margin: 10px 0;
  padding: 12px 20px;
  width: 100%;
  max-width: 300px;
  font-size: 1rem;
  cursor: pointer;
  background-color: #333;
  color: #fff;
  border: 1px solid #555;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#output {
  white-space: pre-wrap;
  padding: 10px;
  margin-top: 10px;
  font-size: 0.85rem;
  word-break: break-word;
}

#dropZone {
  border: 2px dashed #ccc;
  padding: 30px 20px;
  text-align: center;
  margin: 20px 0;
  font-size: 0.9rem;
}

#dropZone.hover {
  border-color: #666;
  background: #111;
}

#inputFile {
  margin-top: 10px;
  font-size: 0.9rem;
}

#modeSelector {
  margin: 20px 0;
  display: flex;
  gap: 20px;
  justify-content: center;
}

#modeSelector label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 8px 12px;
  border: 1px solid #555;
  background-color: #222;
  border-radius: 4px;
}

#modeSelector label:hover {
  background-color: #333;
}

#modeSelector input[type="radio"] {
  cursor: pointer;
  width: 16px;
  height: 16px;
}

@media (max-width: 768px) {
  #modeSelector {
    flex-direction: column;
    gap: 10px;
  }
  #modeSelector label {
    justify-content: center;
  }
  body {
    padding: 10px;
  }
  h1 {
    font-size: 1.2rem;
  }
  button {
    max-width: 100%;
    padding: 15px;
  }
  #dropZone {
    padding: 20px 10px;
    font-size: 0.85rem;
  }
  #output {
    font-size: 0.75rem;
    padding: 8px;
  }
}