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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.header {
  text-align: center;
  color: white;
  margin-bottom: 30px;
}

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.card {
  background: white;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
}

.code-display {
  font-size: 10rem;
  font-weight: 700;
  color: #667eea;
  text-align: center;
  letter-spacing: 1rem;
  font-family: 'Courier New', monospace;
  margin: 40px 0;
  padding: 40px;
  border: 4px solid #667eea;
  border-radius: 20px;
  background: #f8f9fa;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.btn {
  background: #667eea;
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.3s;
  margin: 5px;
}

.btn:hover {
  background: #5568d3;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn:active {
  transform: translateY(0);
}

.btn-success {
  background: #28a745;
}

.btn-success:hover {
  background: #218838;
}

.btn-secondary {
  background: #6c757d;
}

.btn-secondary:hover {
  background: #5a6268;
}

.input-group {
  margin-bottom: 20px;
}

.input-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: #333;
}

.input-group input {
  width: 100%;
  padding: 12px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.3s;
}

.input-group input:focus {
  outline: none;
  border-color: #667eea;
}

.star-rating {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 20px 0;
}

.star {
  font-size: 3rem;
  color: #ddd;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}

.star:hover {
  color: #ffd700;
  transform: scale(1.15);
}

.star.active {
  color: #ffd700;
  transform: scale(1.1);
}

.loading {
  text-align: center;
  padding: 40px;
  color: #666;
  font-size: 1.2rem;
}

.voting-interface {
  text-align: center;
}

@media (max-width: 768px) {
  .code-display {
    font-size: 6rem;
    letter-spacing: 0.5rem;
    padding: 20px;
  }
  
  .header h1 {
    font-size: 2rem;
  }
}