body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #282c34;
  color: #e0e0e0;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 40px;
  padding: 30px;
  margin: 0;
}

.container {
  display: flex;
  flex-direction: column;
  width: 45%;
  max-width: 600px;
}

h2 {
  color: #61afef;
  margin-top: 0;
  padding-bottom: 10px;
}

h1 {
  color: #61afef;
  margin-top: 0;
  padding-bottom: 10px;
}

textarea {
  width: 100%;
  height: 60vh;
  background-color: #3c414c;
  color: #e0e0e0;
  border: 2px solid #555;
  border-radius: 8px;
  padding: 15px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 1em;
  resize: none;
  box-sizing: border-box;
  margin-top: 10px;
}

textarea#output {
  background-color: #21252b;
}

button,
.file-label {
  padding: 12px 20px;
  font-size: 1.1em;
  border: none;
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
  transition: background-color 0.2s ease;
  text-align: center;
  display: block;
}

#process-btn {
  background-color: #98c379;
}

#process-btn:hover {
  background-color: #89b06c;
}

#copy-btn,
#export-btn {
  background-color: #61afef;
}

#copy-btn:hover,
#export-btn:hover {
  background-color: #528fc8;
}

.file-label {
  background-color: #c678dd;
  margin-bottom: 15px;
}

.file-label:hover {
  background-color: #b36ac9;
}

#file-input {
  display: none;
}

.info {
  font-size: 0.9em;
  color: #999;
  margin-bottom: 10px;
  text-align: center;
}

.button-group {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.format-toggle {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  cursor: pointer;
}

.format-toggle input {
  margin-right: 8px;
}