:root {
  --bg-color: #f3f3f3;
  --container-bg: white;
  --text-color: #333;
  --input-bg: white;
  --input-border: #ccc;
  --pre-bg: #efefef;
  --button-bg: #007bff;
  --button-text: white;
  --button-hover: #0056b3;
}

[data-theme="dark"] {
  --bg-color: #1a1a1a;
  --container-bg: #2d2d2d;
  --text-color: #e0e0e0;
  --input-bg: #3a3a3a;
  --input-border: #555;
  --pre-bg: #333;
  --button-bg: #0056b3;
  --button-text: white;
  --button-hover: #007bff;
}

body {
  font-family: Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  padding: 20px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: 800px;
  margin: auto;
  background: var(--container-bg);
  color: var(--text-color);
  padding: 20px;
  border-radius: 10px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-column {
  display: flex;
  flex-direction: column;
}

.generate-section {
  grid-column: 1 / -1;
  margin-top: 20px;
}

@media (max-width: 768px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.header h1 {
  margin: 0;
}

.theme-toggle {
  background: none;
  border: 2px solid var(--text-color);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  background-color: var(--text-color);
  color: var(--container-bg);
}

form label {
  display: block;
  margin-top: 10px;
  color: var(--text-color);
}

select,
input {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
  background-color: var(--input-bg);
  color: var(--text-color);
  border: 1px solid var(--input-border);
  border-radius: 4px;
  box-sizing: border-box;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

select:focus,
input:focus {
  outline: none;
  border-color: var(--button-bg);
}

button {
  margin-top: 20px;
  padding: 10px;
  width: 100%;
  background-color: var(--button-bg);
  color: var(--button-text);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: var(--button-hover);
}

pre {
  background: var(--pre-bg);
  color: var(--text-color);
  padding: 10px;
  margin-top: 20px;
  white-space: pre-wrap;
  border-radius: 4px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

#copyBtn {
  width: auto;
  padding: 8px 16px;
  margin-top: 10px;
}