:root {
  --primary-color: #646cff;
  --primary-hover: #535bf2;
  --bg-color: #f5f5f5;
  --card-bg: #ffffff;
  --text-color: #213547;
  --border-color: #e0e0e0;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  min-height: 100vh;
  padding: 1rem;
}

.container {
  max-width: 800px;
  margin: 0 auto;
}

h1 {
  text-align: center;
  margin-bottom: 1rem;
margin-top: 0.5em;
  color: var(--primary-color);
}

h2 {
  margin-bottom: 1rem;
  color: var(--text-color);
}

.card {
  background: var(--card-bg);
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  margin-bottom: 0.5rem;
margin-top: 0.5em;
}

.form-group {
  margin-bottom: 0.4rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

input {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
}

input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(100, 108, 255, 0.1);
}

.btn {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s ease;
}

.btn:hover {
  background-color: var(--primary-hover);
}

.output {
  background-color: #f8f9fa;
}

#response {
  background-color: #2c2c2c;
  color: #ffffff;
  padding: 1rem;
  border-radius: 4px;
  overflow-x: auto;
  font-family: monospace;
  min-height: 100px;
}