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0 1.6rem}.qr-type-selector__option{flex-grow:1;flex-shrink:1;flex-basis:calc(25% - 0.6rem);min-width:7rem;padding:.8rem 1rem;border:1px solid var(--card-border);border-radius:var(--radius-sm);background:var(--accent-soft);color:var(--text-muted);font-size:1.3rem;font-weight:500;font-family:inherit;cursor:pointer;transition:background var(--transition),color var(--transition),border-color var(--transition),box-shadow var(--transition)}.qr-type-selector__option--active{background:var(--surface);color:var(--text);border-color:var(--accent);box-shadow:var(--shadow-sm)}.qr-type-selector__option:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.form-field{margin-bottom:1.6rem}.form-field label{display:block;margin-bottom:.6rem;font-weight:500;font-size:1.4rem}.form-field--checkbox label{display:flex;align-items:center;gap:.8rem;margin-bottom:0;font-weight:400;cursor:pointer}.form-field--checkbox 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0;padding:1.6rem;background:var(--accent-soft);border:1px solid var(--card-border);border-radius:var(--radius-md)}.qr-style-options__heading{margin:0 0 1.2rem;font-size:1.3rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted)}.qr-style-options__presets{display:flex;flex-wrap:wrap;gap:.8rem;margin-bottom:1.2rem}.qr-style-options__preset{display:inline-flex;align-items:center;gap:.6rem;padding:.6rem 1rem;border:1px solid var(--card-border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font-size:1.3rem;font-family:inherit;cursor:pointer;transition:border-color var(--transition),background var(--transition)}.qr-style-options__preset:hover{border-color:var(--accent)}.qr-style-options__preset-swatch{width:1.6rem;height:1.6rem;border-radius:var(--radius-sm);border:1px solid var(--card-border)}.qr-style-options__grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:1.2rem;gap:1.2rem}.qr-style-options__grid .form-field{margin-bottom:0}.color-panel{display:flex;flex-direction:column;gap:.8rem;padding:.8rem;border:1px solid var(--input-border);border-radius:var(--radius-md);background:var(--surface)}.color-panel__swatch{height:4rem;padding:.4rem;border:1px solid var(--input-border);cursor:pointer;background:var(--input-bg)}.color-panel__hex,.color-panel__swatch{width:100%;border-radius:var(--radius-sm)}.color-panel__hex{padding:.8rem 1rem;border:1px solid var(--input-border);font-size:1.3rem;font-family:SF Mono,Fira Code,Fira Mono,Menlo,monospace;background-color:var(--input-bg);color:var(--text);transition:border-color var(--transition),box-shadow var(--transition)}.color-panel__hex:hover{border-color:var(--input-border-hover)}.color-panel__hex:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--input-focus-ring);outline:none}.color-panel__hex--invalid{border-color:var(--error-color)}.color-panel__hex--invalid:focus{box-shadow:0 0 0 3px var(--error-bg)}.color-panel__rgb{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:.6rem;gap:.6rem}.color-panel__channel{display:flex;flex-direction:column;align-items:center;gap:.4rem}.color-panel__channel input[type=number]{width:100%;padding:.6rem .4rem;text-align:center;font-size:1.3rem;border-radius:var(--radius-sm);border:1px solid var(--input-border);background-color:var(--input-bg);color:var(--text);-moz-appearance:textfield}.color-panel__channel input[type=number]::-webkit-inner-spin-button,.color-panel__channel input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.color-panel__channel span{font-size:1.1rem;font-weight:500;color:var(--text-muted);text-transform:uppercase}.qr-style-options__warn{margin:1.2rem 0 0}.qr-style-options__reset{margin-top:1.2rem;width:100%}.toast{margin:0 0 1rem;padding:1rem 1.2rem;border-radius:var(--radius-sm);font-size:1.3rem}.toast--success{color:#166534;background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.3)}.toast--error{color:var(--error-color);background:var(--error-bg);border:1px solid rgba(220,38,38,.2)}[data-theme=dark] .toast--success{color:#86efac}.type-seo{max-width:96rem;margin-left:auto;margin-right:auto}.type-seo__nav{display:flex;flex-wrap:wrap;justify-content:center;gap:.8rem;margin-bottom:2.4rem}.type-seo__nav-link{padding:.6rem 1.4rem;border-radius:var(--radius-sm);background:var(--button-secondary-bg);color:var(--button-secondary-text);font-size:1.4rem;font-weight:500;text-decoration:none;transition:background var(--transition)}.type-seo__nav-link:hover{background:var(--button-secondary-hover)}.type-seo__item{padding:2.4rem;margin-bottom:1.6rem;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-md);scroll-margin-top:8rem}.type-seo__item h2{font-size:1.8rem;margin-bottom:.8rem}.type-seo__item h3{font-size:1.5rem;margin:1.6rem 0 .8rem}.type-seo__item p{margin:0;color:var(--text-muted);font-size:1.5rem;line-height:1.6}.type-seo__item p+p{margin-top:.8rem}.type-seo__list{margin:0;padding-left:1.8rem;color:var(--text-muted);font-size:1.5rem;line-height:1.6;display:flex;flex-direction:column;gap:.4rem}.type-seo__tip{margin-top:1.6rem;padding:1rem 1.4rem;background:var(--accent-soft);border-radius:var(--radius-sm);color:var(--text);font-size:1.4rem}.type-seo__tip strong{color:var(--accent)}.best-practices__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(22rem,1fr));grid-gap:1.2rem;gap:1.2rem}.best-practices__item{padding:1.6rem 2rem;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-md)}.best-practices__item h3{margin:0 0 .6rem;font-size:1.5rem}.best-practices__item p{margin:0;color:var(--text-muted);font-size:1.4rem;line-height:1.6}@media print{.best-practices,.export-panel,.generator-workspace__heading,.generator-workspace__input,.hero,.qr-density,.qr-type-selector,.scan-hint,.section#faq,.site-footer,.site-header,.trust-strip,.type-seo{display:none!important}.site-main{padding:0}.generator-workspace{box-shadow:none;border:none;padding:0;margin:0}.generator-workspace__preview--print{display:block!important}.preview-panel{page-break-inside:avoid}}@media (min-width:768px){.generator-workspace{grid-template-columns:1fr 1fr;gap:3.2rem}.trust-strip{grid-template-columns:repeat(4,1fr)}}@media (min-width:1024px){.preview-placeholder,.qr-preview__canvas{min-width:32rem;min-height:32rem}}.button,button.primary,button.secondary{display:inline-flex;align-items:center;justify-content:center;gap:.8rem;padding:1.2rem 2rem;border-radius:var(--radius-md);border:1px solid transparent;font-size:1.5rem;font-weight:500;font-family:inherit;cursor:pointer;text-decoration:none;text-align:center;transition:background var(--transition),border-color var(--transition),transform var(--transition),box-shadow var(--transition)}.button.primary,button.primary{background-color:var(--button-primary-bg);color:var(--button-primary-text);box-shadow:var(--shadow-sm)}.button.primary:hover:not(:disabled),button.primary:hover:not(:disabled){background-color:var(--button-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.button.secondary,button.secondary{background-color:var(--button-secondary-bg);color:var(--button-secondary-text);border-color:var(--card-border)}.button.secondary:hover:not(:disabled),button.secondary:hover:not(:disabled){background-color:var(--button-secondary-hover);transform:translateY(-1px)}.button.large{padding:1.4rem 2.4rem;font-size:1.6rem}.button:disabled,button:disabled{opacity:.55;cursor:not-allowed;transform:none}.button:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.panel{max-width:48rem;margin:0 auto;padding:3.2rem;background:var(--surface);border:1px solid var(--card-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.panel__header{text-align:center;margin-bottom:2.4rem}.panel__subtitle{color:var(--text-muted);font-size:1.5rem;margin:.6rem 0 0;line-height:1.5}.panel-below{text-align:center;margin-top:2rem}.form>div{display:flex;flex-direction:column;margin-bottom:1.6rem}.form label{margin-bottom:.6rem;font-weight:500;font-size:1.4rem}button,input{padding:1.2rem 1.4rem;border-radius:var(--radius-md);border:1px solid var(--input-border);font-size:1.5rem;font-family:inherit;background-color:var(--input-bg);color:var(--text);transition:border-color var(--transition),box-shadow var(--transition)}input{width:100%}input:hover{border-color:var(--input-border-hover)}input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--input-focus-ring);outline:none}.form-error{display:flex;align-items:center;gap:.4rem;color:var(--error-color);background:var(--error-bg);margin:.8rem 0 0;padding:.8rem 1.2rem;border-radius:var(--radius-sm);font-size:1.3rem}.form-actions{margin-top:.4rem}.form-actions .button,.form-actions button{width:100%}.back-link{font-size:1.4rem;color:var(--text-muted)}.back-link a:hover{color:var(--accent)}.text-link{display:inline-block;font-size:1.4rem;color:var(--text-muted);margin-top:.4rem}.text-link:hover{color:var(--accent)}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(22rem,1fr));grid-gap:1.6rem;gap:1.6rem}.feature-card{padding:2rem;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:transform var(--transition),box-shadow var(--transition)}.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.feature-card__icon{display:inline-flex;align-items:center;justify-content:center;width:4rem;height:4rem;margin-bottom:1.2rem;font-size:1.8rem;color:var(--accent);background:var(--accent-soft);border-radius:var(--radius-sm)}.feature-card__text{margin:0;font-size:1.5rem;line-height:1.5}.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(20rem,1fr));grid-gap:1.6rem;gap:1.6rem;list-style:none;padding:0;margin:0}.step-card{padding:2rem;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);text-align:center}.step-card__number{display:inline-flex;align-items:center;justify-content:center;width:3.6rem;height:3.6rem;margin-bottom:1.2rem;border-radius:50%;background:var(--button-primary-bg);color:var(--button-primary-text);font-size:1.6rem;font-weight:700}.step-card__title{margin:0;font-size:1.5rem;font-weight:500;line-height:1.4}.faq-list{margin:0;display:flex;flex-direction:column;gap:1.2rem}.faq-item{padding:1.6rem 2rem;background:var(--card-bg);border:1px solid var(--card-border);border-left:3px solid var(--accent);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.faq-item dt{font-weight:600;font-size:1.5rem;margin-bottom:.6rem}.faq-item dd{margin:0;font-size:1.4rem;line-height:1.6}.faq-item dd,.url-chip{color:var(--text-muted)}.url-chip{display:block;padding:.8rem 1.2rem;margin:0 auto 2rem;max-width:100%;font-family:SF Mono,Fira Code,Fira Mono,Menlo,monospace;font-size:1.3rem;background:var(--accent-soft);border:1px solid var(--card-border);border-radius:var(--radius-sm);word-break:break-all;overflow:hidden;text-overflow:ellipsis}@media (max-width:600px){.url-chip{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}}.qr-preview{margin:0 0 2.4rem}.qr-preview,.qr-preview__canvas{display:flex;justify-content:center}.qr-preview__canvas{background:#ffffff;padding:2rem;border-radius:var(--radius-md);border:1px solid var(--card-border);box-shadow:var(--shadow-md);min-width:29.6rem;min-height:29.6rem;align-items:center}.qr-preview__canvas--transparent-edge{background-color:transparent;background-image:linear-gradient(45deg,var(--checker-a) 25%,transparent 25%),linear-gradient(-45deg,var(--checker-a) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,var(--checker-a) 75%),linear-gradient(-45deg,transparent 75%,var(--checker-a) 75%);background-size:1.6rem 1.6rem;background-position:0 0,0 .8rem,.8rem -.8rem,-.8rem 0}.transparent-edge-hint{margin:-1.6rem 0 .8rem;font-size:1.2rem;color:var(--text-muted);text-align:center}.result-actions{display:flex;flex-direction:column;align-items:stretch;gap:1rem}.result-actions .button,.result-actions button{width:100%}.result-actions .text-link{text-align:center}@media (max-width:640px){.site-header{padding:1rem 1.5rem}.site-main{padding:2rem 1.5rem 3rem}h1{font-size:2.6rem}.panel{padding:2.4rem 2rem}.hero{padding:1rem 0 3rem}}@media (min-width:768px){h1{font-size:4rem}.hero__subtitle{font-size:2rem}}