:root{--color-bg: #ffffff;--color-surface: #f8fafc;--color-surface-2: #f1f5f9;--color-border: #e2e8f0;--color-text: #0f172a;--color-text-muted: #64748b;--color-primary: #0f172a;--color-primary-fg: #ffffff;--color-accent: #2563eb;--color-danger: #dc2626;--color-success: #16a34a;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--space-8: 3rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--fs-sm: .875rem;--fs-base: 1rem;--fs-lg: 1.125rem;--fs-xl: 1.375rem;--fs-2xl: 1.75rem;--fs-3xl: 2.25rem;--lh-tight: 1.2;--lh-base: 1.55;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow-md: 0 4px 12px rgba(15, 23, 42, .08);--shadow-lg: 0 12px 32px rgba(15, 23, 42, .12);--container-max: 1120px;--header-h: 64px;--transition: .16s ease}@media(prefers-color-scheme:dark){:root{--color-bg: #0b1120;--color-surface: #111827;--color-surface-2: #1f2937;--color-border: #1f2937;--color-text: #f1f5f9;--color-text-muted: #94a3b8;--color-primary: #f8fafc;--color-primary-fg: #0f172a;--color-accent: #60a5fa;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 12px rgba(0, 0, 0, .5);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .6)}}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}body{margin:0;min-height:100dvh;font-family:var(--font-sans);font-size:var(--fs-base);line-height:var(--lh-base);color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3{line-height:var(--lh-tight);margin:0;letter-spacing:-.01em}p{margin:0}a{color:var(--color-accent);text-decoration:none;transition:opacity var(--transition)}a:hover{opacity:.8}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px;border-radius:var(--radius-sm)}img,svg{display:block;max-width:100%}button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}input,select,textarea{font:inherit;color:inherit}.skip-link{position:absolute;inset-inline-start:var(--space-4);inset-block-start:-100px;z-index:100;padding:var(--space-2) var(--space-4);background:var(--color-primary);color:var(--color-primary-fg);border-radius:var(--radius-sm);transition:top var(--transition)}.skip-link:focus-visible{inset-block-start:var(--space-4)}.site-header{border-bottom:1px solid var(--color-border);background:var(--color-bg);position:sticky;top:0;z-index:10;backdrop-filter:saturate(140%) blur(8px)}.site-header .container{display:flex;align-items:center;gap:var(--space-4);min-height:var(--header-h);flex-wrap:wrap}.brand{display:inline-flex;align-items:center;gap:var(--space-2);font-weight:700;font-size:var(--fs-lg);color:var(--color-text);letter-spacing:-.01em}.brand img{width:28px;height:28px}.tagline{color:var(--color-text-muted);font-size:var(--fs-sm);margin-left:auto}@media(max-width:640px){.tagline{display:none}}.layout{display:grid;gap:var(--space-5);grid-template-columns:1fr;padding-block:var(--space-6) var(--space-8)}@media(min-width:880px){.layout{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:var(--space-6)}}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-5);box-shadow:var(--shadow-sm)}.card-title{font-size:var(--fs-xl);font-weight:700;margin-bottom:var(--space-5)}.field{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-4)}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4)}@media(max-width:480px){.field-row{grid-template-columns:1fr}}label{font-size:var(--fs-sm);font-weight:600;color:var(--color-text);display:flex;justify-content:space-between;align-items:baseline;gap:var(--space-2)}.hint{font-weight:400;color:var(--color-text-muted);font-size:var(--fs-sm)}input[type=text],input[type=email],input[type=tel],input[type=number],input[type=url],input[type=password],select,textarea{width:100%;padding:var(--space-3) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);color:var(--color-text);transition:border-color var(--transition),box-shadow var(--transition);font-size:var(--fs-base)}input[type=color]{width:100%;height:40px;padding:2px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);cursor:pointer}input[type=range]{width:100%;accent-color:var(--color-accent)}input:focus,select:focus,textarea:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-accent) 22%,transparent);outline:none}input[aria-invalid=true],select[aria-invalid=true],textarea[aria-invalid=true]{border-color:var(--color-danger)}textarea{min-height:96px;resize:vertical;font-family:var(--font-sans)}.field-error{color:var(--color-danger);font-size:var(--fs-sm);min-height:1.2em}.customization{margin:var(--space-5) 0 0;padding:var(--space-4);border:1px dashed var(--color-border);border-radius:var(--radius-md)}.customization legend{padding:0 var(--space-2);font-size:var(--fs-sm);font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em}.status{margin-top:var(--space-4);min-height:1.4em;font-size:var(--fs-sm);color:var(--color-text-muted)}.status[data-tone=error]{color:var(--color-danger)}.status[data-tone=success]{color:var(--color-success)}.preview-wrapper{display:flex;align-items:center;justify-content:center;padding:var(--space-5);background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-md);min-height:280px;margin-bottom:var(--space-4)}.qr-stage{display:flex;align-items:center;justify-content:center;max-width:100%}.qr-stage canvas,.qr-stage svg{max-width:100%;height:auto;display:block;background:var(--color-bg);border-radius:var(--radius-sm)}.preview-placeholder{color:var(--color-text-muted);font-size:var(--fs-sm);text-align:center;max-width:280px}.preview-actions{display:flex;gap:var(--space-3);flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);border-radius:var(--radius-md);font-weight:600;font-size:var(--fs-base);border:1px solid transparent;cursor:pointer;transition:background var(--transition),color var(--transition),border-color var(--transition),transform var(--transition);user-select:none}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:var(--color-primary-fg)}.btn-primary:hover:not(:disabled){background:color-mix(in srgb,var(--color-primary) 88%,var(--color-accent))}.btn-secondary{background:var(--color-bg);color:var(--color-text);border-color:var(--color-border)}.btn-secondary:hover:not(:disabled){border-color:var(--color-text)}.btn-ghost{background:transparent;color:var(--color-text);border-color:transparent}.btn-ghost:hover:not(:disabled){background:var(--color-surface-2)}.site-footer{border-top:1px solid var(--color-border);padding-block:var(--space-5);margin-top:var(--space-6);color:var(--color-text-muted);font-size:var(--fs-sm);text-align:center}.fields-container{display:block}.container{max-width:var(--container-max);margin-inline:auto;padding-inline:var(--space-5);width:100%}@media(max-width:480px){.container{padding-inline:var(--space-4)}}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}