:root {
  --primary-color: #a931ff;
  --secondary-color: #881682;
  --accent-color: #d400ff;
  --text-color: #333;
  --light-gray: #f5f5f5;
  --medium-gray: #e0e0e0;
  --dark-gray: #757575;
  --success-color: #4caf50;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--light-gray);
  padding: 20px;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  background-color: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

header {
  background-color: var(--primary-color);
  color: white;
  padding: 30px 20px;
  text-align: center;
}

header h1 {
  margin-bottom: 10px;
  font-size: 2.2rem;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  padding: 20px;
  background-color: var(--medium-gray);
  align-items: center;
}

.control-group {
  display: flex;
  flex-direction: column;
  min-width: 150px;
}

label {
  margin-bottom: 5px;
  font-weight: 600;
  font-size: 0.9rem;
}

input, select {
  padding: 8px 12px;
  border: 1px solid var(--dark-gray);
  border-radius: 4px;
  font-size: 1rem;
}

button {
  background-color: var(--secondary-color);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: background-color 0.2s;
}

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

#generate-btn {
  margin-left: auto;
  padding: 10px 25px;
  background-color: var(--accent-color);
}

#generate-btn:hover {
  background-color: #ad21f3;
}

.output-container {
  padding: 20px;
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--medium-gray);
}

#copy-btn {
  background: none;
  color: var(--dark-gray);
  padding: 5px;
}

#copy-btn:hover {
  color: var(--primary-color);
  background: none;
}

.output {
  background-color: var(--light-gray);
  padding: 20px;
  border-radius: 4px;
  min-height: 300px;
  white-space: pre-wrap;
}

.output p {
  margin-bottom: 15px;
}

.copy-success {
  color: var(--success-color);
  font-size: 0.9rem;
  margin-left: 10px;
  opacity: 0;
  transition: opacity 0.3s;
}

.copy-success.show {
  opacity: 1;
}

@media (max-width: 768px) {
  .controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  #generate-btn {
    margin-left: 0;
    width: 100%;
  }
}