:root {
  --accent: #2a58ff;
  --bg: #f4f7fb;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--bg);
}

header {
  background: var(--accent);
  padding: 20px;
  text-align: center;
  color: white;
}

.container {
  width: 90%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 25px auto;
}

textarea {
  width: 100%;
  height: 260px;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid #aaa;
  resize: vertical;
}

button {
  padding: 12px 18px;
  margin-top: 12px;
  background: var(--accent);
  border: none;
  color: white;
  border-radius: 10px;
  cursor: pointer;
}

.card {
  background: white;
  padding: 15px;
  border-radius: 10px;
  border-left: 5px solid var(--accent);
}

pre {
  white-space: pre-wrap;
}