* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, sans-serif; background: #f9fafb; color: #333; }
.container { max-width: 800px; margin: 0 auto; padding: 20px; }
header { background: linear-gradient(135deg, #1e40af, #7c3aed); color: white; padding: 20px 0; text-align: center; }
header h1 { font-size: 28px; }
h2 { margin: 20px 0; }
.btn { display: inline-block; padding: 12px 24px; background: #1e40af; color: white; text-decoration: none; border-radius: 6px; margin-top: 20px; }
.btn-pro { display: block; width: 100%; padding: 12px; background: #f59e0b; color: white; border: none; border-radius: 6px; margin-top: 20px; cursor: pointer; }
.app { padding: 40px 0; }
input, select, textarea { width: 100%; padding: 10px; margin: 10px 0; border: 1px solid #ddd; border-radius: 4px; }
button { padding: 10px 20px; background: #1e40af; color: white; border: none; border-radius: 4px; cursor: pointer; }
#preview, #result, #output, #ideas { margin-top: 20px; padding: 16px; background: white; border-radius: 6px; }
label { display: block; margin: 10px 0; }