*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background-color:#fff;color:#333;line-height:1.6}.container{min-height:100vh;display:flex;flex-direction:column}header{background-color:#f8f9fa;padding:2rem 1rem;text-align:center;border-bottom:1px solid #eaeaea}header h1{font-size:2.5rem;color:#2c3e50;font-weight:300}main{flex:1;padding:2rem 1rem;max-width:800px;margin:0 auto;width:100%}.card{background:#fff;border-radius:12px;box-shadow:0 4px 6px #0000000d;padding:2rem;margin-bottom:2rem}.type-selector{margin-bottom:2rem}.type-selector label{display:block;margin-bottom:.5rem;font-weight:500;color:#555}.type-selector select{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:6px;font-size:1rem;background-color:#fff;cursor:pointer;transition:border-color .2s}.type-selector select:focus{outline:none;border-color:#3498db}.form-container h2{margin-bottom:1.5rem;color:#2c3e50;font-weight:400;font-size:1.5rem}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500;color:#555}.form-group input,.form-group textarea,.form-group select{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:6px;font-size:1rem;margin-bottom:1rem;transition:border-color .2s}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:#3498db}.form-group textarea{resize:vertical;min-height:80px}.button-group{display:flex;gap:1rem;margin-top:2rem}.button-group button{flex:1;padding:.875rem 1.5rem;border:none;border-radius:6px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s}.generate-btn{background-color:#3498db;color:#fff}.generate-btn:hover:not(:disabled){background-color:#2980b9}.generate-btn:disabled{background-color:#bdc3c7;cursor:not-allowed;opacity:.6}.reset-btn{background-color:#e0e0e0;color:#333}.reset-btn:hover{background-color:#d0d0d0}.preview-container{margin-top:3rem;padding-top:2rem;border-top:1px solid #eee}.preview-container h2{margin-bottom:1.5rem;color:#2c3e50;font-weight:400;font-size:1.5rem}.qr-preview{display:flex;justify-content:center;margin:2rem 0}.qr-preview img{max-width:300px;width:100%;height:auto;border:1px solid #eee;border-radius:8px;padding:1rem;background-color:#fff}.preview-buttons{display:flex;justify-content:center}.download-btn{padding:.875rem 2rem;background-color:#27ae60;color:#fff;border:none;border-radius:6px;font-size:1rem;font-weight:500;cursor:pointer;transition:background-color .2s}.download-btn:hover{background-color:#219653}.hidden-download{display:none}.header-subtitle{margin-top:.5rem;font-size:1rem;color:#666}.header-subtitle a{color:#3498db;text-decoration:none;transition:color .2s}.header-subtitle a:hover{color:#2980b9;text-decoration:underline}@media (max-width: 768px){.card{padding:1.5rem}header h1{font-size:2rem}.button-group{flex-direction:column}}