:root{--paper:#f6f4ed;--ink:#181816;--muted:#65645d;--line:#d4d1c6;--yellow:#f3d34a;--mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;font-family:Arial,Helvetica,system-ui,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}
html{scroll-behavior:auto}
body{margin:0;background:var(--paper)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
a{color:inherit;text-underline-offset:4px}
a:hover{text-decoration-thickness:2px}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--ink);outline-offset:4px}
[hidden]{display:none!important}
.shell{width:min(1120px,calc(100% - 64px));margin:auto}
header{border-bottom:1px solid var(--ink)}
header .shell{min-height:76px;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;white-space:nowrap}
.brand-icon{width:35px;height:35px;flex:none}
.brand-text{font-size:22px;font-weight:800;letter-spacing:-.065em}
.brand-text span{font-weight:400;color:var(--muted);font-size:17px;letter-spacing:-.04em}
.header-note{display:flex;align-items:center;gap:8px;margin:auto;font:10px/1.5 var(--mono);letter-spacing:.055em}
.status-square{width:6px;height:6px;background:var(--ink)}
.header-privacy{font:11px/1.5 var(--mono);white-space:nowrap}
main{padding:35px 0 0}
.intro{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(270px,.85fr);gap:28px;align-items:center;margin:0 0 34px}
.eyebrow{font:10px/1.5 var(--mono);letter-spacing:.06em;color:var(--muted)}
h1{font-size:clamp(46px,5.9vw,76px);line-height:1.06;letter-spacing:-.075em;font-weight:800;margin:17px 0 12px}
h1 span{background:var(--yellow);padding:0 7px 2px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.intro-caption{margin:0;font-size:16px;line-height:1.6;color:var(--muted)}
.intro-copy{border-left:1px solid var(--line);padding:0 0 0 30px}
.intro-copy p{font-size:14px;line-height:1.55;margin:0;color:var(--muted)}
.intro-copy .plain-promise{font-size:19px;font-weight:700;color:var(--ink);line-height:1.4;margin-bottom:10px;letter-spacing:-.035em}
.quick-links{display:flex;gap:18px;flex-wrap:wrap;margin-top:13px;font:10px/1.5 var(--mono)}
.grid{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:0;border:1px solid var(--ink);background:#fcfbf7;align-items:start}
.editor{padding:26px 28px 24px;border-right:1px solid var(--ink)}
.preview{padding:26px 24px 24px;text-align:center;position:sticky;top:18px}
.panel-heading{display:flex;align-items:baseline;gap:16px;padding:0 0 18px;margin:0 0 18px;border-bottom:1px solid var(--line);text-align:left}
.panel-heading span{font:10px/1.5 var(--mono);letter-spacing:.07em;color:var(--muted);white-space:nowrap}
.panel-heading b{font-size:19px;line-height:1.2;letter-spacing:-.04em}
.type-group{margin:0 0 15px}
.type-group-title{font:9px/1.5 var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 0 7px}
.type-list{display:flex;flex-wrap:wrap;gap:5px}
.type-button{border:1px solid var(--line);border-radius:2px;background:transparent;color:var(--muted);padding:8px 10px;font-size:11px;font-weight:600;line-height:1.15}
.type-button:hover{border-color:var(--ink);color:var(--ink)}
.type-button.active{background:var(--yellow);border-color:var(--ink);color:var(--ink)}
.fields{padding-top:20px;margin-top:20px;border-top:1px solid var(--line)}
.field{margin-bottom:17px}
.field:last-child{margin-bottom:0}
label{display:block;font-size:12px;line-height:1.5;font-weight:700;margin:0 0 8px}
textarea,input:not([type=color]):not([type=file]):not([type=checkbox]),select{display:block;width:100%;border:1px solid #aaa79c;border-radius:2px;background:#fffefa;padding:12px;outline:0;font-size:14px;line-height:1.4;min-width:0}
textarea:focus,input:not([type=color]):not([type=file]):not([type=checkbox]):focus,select:focus{border-color:var(--ink);box-shadow:0 0 0 2px var(--yellow)}
textarea{min-height:110px;resize:vertical}
.field-note,.hint{font-size:11px;line-height:1.6;color:var(--muted);margin:8px 0 0}
.field-grid,.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-row{margin-top:16px}
.design-controls{margin:23px 0 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.design-controls summary{padding:17px 0;cursor:pointer;font-size:13px;font-weight:700;line-height:1.5}
.design-controls summary small{float:right;font:9px/2.1 var(--mono);color:var(--muted);letter-spacing:.03em}
.design-body{padding:0 0 20px}
.design-body>.form-row:first-child{margin-top:0}
.subtle-label{margin-top:17px}
.color-control{display:flex;align-items:center;gap:11px;border:1px solid #aaa79c;height:46px;padding:8px 10px;background:#fffefa;border-radius:2px}
input[type=color]{width:29px;height:29px;border:0;background:none;padding:0;cursor:pointer;flex:none}
.color-control input[type=text]:not([type=color]):not([type=file]){width:94px;border:0;padding:5px 0;background:transparent;font:12px var(--mono);text-transform:uppercase;box-shadow:none}
.color-control:focus-within{border-color:var(--ink);box-shadow:0 0 0 2px var(--yellow)}
.color-error{color:#9b231d;font-size:11px;min-height:16px;margin:5px 0 0}
.check-line{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:400;margin:15px 0;cursor:pointer}
.check-line input{accent-color:var(--ink)}
.logo-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.logo-row input{max-width:240px;font-size:11px;color:var(--muted)}
.logo-row input::file-selector-button,.small-button{border:1px solid var(--ink);border-radius:2px;background:transparent;color:var(--ink);padding:8px 10px;font-size:11px;cursor:pointer}
.logo-row input::file-selector-button{margin-right:10px}
.logo-name{font:10px/1.5 var(--mono);overflow-wrap:anywhere}
.frame-picker{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;margin-top:9px}
.frame-choice{min-width:0;border:1px solid var(--line);border-radius:2px;background:transparent;padding:8px 4px;color:var(--muted);font-size:10px;line-height:1.5}
.frame-choice:hover{border-color:var(--ink)}
.frame-choice.active{border-color:var(--ink);background:#f7edb9;color:var(--ink)}
.frame-art{display:grid;place-items:center;height:84px;margin-bottom:5px}
.frame-art canvas{display:block;max-width:69px;max-height:80px;width:auto;height:auto}
.notice{border-left:3px solid var(--yellow);padding:0 0 0 12px;margin-top:20px;font-size:11px;line-height:1.7;color:var(--muted)}
.notice strong{color:var(--ink)}
.qr-stage{display:grid;place-items:center;min-height:316px;padding:16px;border:1px solid var(--line);background:#fff}
#qr{display:flex;align-items:center;justify-content:center;width:100%}
#qr canvas{max-width:100%;max-height:350px;width:auto;height:auto}
#matrixSource{display:none}
.encoded{font:10px/1.6 var(--mono);color:var(--muted);text-align:left;overflow-wrap:anywhere;margin:14px 0 19px;max-height:70px;overflow-y:auto}
.encoded strong{font-weight:400;color:var(--ink)}
.actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.action{border:1px solid var(--ink);border-radius:2px;background:transparent;color:var(--ink);padding:14px 6px;font-size:12px;font-weight:700;line-height:1.25}
.action.primary{background:var(--yellow)}
.action:hover{background:var(--ink);color:var(--paper)}
.action:disabled{opacity:.4;cursor:not-allowed}
.status{font-size:11px;line-height:1.5;color:#9b231d;margin:9px 0 0;min-height:0}
.status:empty{display:none}
.download-aside{font-size:12px;font-weight:700;margin:19px 0 0;letter-spacing:-.02em}
.preview .hint{font-size:10px;margin-top:5px}
.info-section{border-top:1px solid var(--ink);padding-top:28px;margin-top:52px;scroll-margin-top:28px}
.info-section h2{font-size:clamp(24px,3vw,31px);line-height:1.2;letter-spacing:-.05em;margin:0 0 20px;font-weight:700}
.info-section h3{font-size:16px;line-height:1.4;letter-spacing:-.03em;margin:0 0 10px}
.info-section p{font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 14px}
.info-section .section-kicker{font:9px/1.5 var(--mono);letter-spacing:.055em;margin:0 0 13px;color:var(--muted)}
.section-intro{max-width:830px}
.steps,.use-cases{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-top:24px}
.steps{list-style:none;counter-reset:steps;padding:0}
.steps li{counter-increment:steps}
.steps li::before{content:"0" counter(steps);display:inline-block;background:var(--yellow);font:11px/1.5 var(--mono);padding:3px 5px;margin-bottom:14px}
.faq-list{max-width:880px}
.faq-list details{border-bottom:1px solid var(--line);padding:0 0 18px;margin-bottom:18px}
.faq-list summary{font-size:15px;font-weight:700;line-height:1.5;cursor:pointer}
.faq-list details p{margin-top:12px;max-width:810px}
.privacy-section{max-width:880px}
.privacy-section strong{color:var(--ink)}
.info-section .source-note{font:11px/1.7 var(--mono);margin-top:23px}
footer{display:flex;gap:22px;align-items:center;border-top:1px solid var(--ink);font:10px/1.6 var(--mono);color:var(--muted);margin-top:48px!important;padding:22px 0 30px}
footer strong{font:700 15px Arial,sans-serif;color:var(--ink);letter-spacing:-.04em}
footer span{margin-right:auto}
#printSheet{display:none}
@media(max-width:900px){.grid{grid-template-columns:minmax(0,1fr) 350px}.shell{width:calc(100% - 40px)}.editor{padding:24px 20px}.preview{padding:24px 18px}.header-note{display:none}.header-privacy{margin-left:auto}.intro{grid-template-columns:1.3fr 1fr;gap:20px}.intro-copy{padding-left:20px}h1{font-size:clamp(46px,6.5vw,65px)}.qr-stage{min-height:280px}.design-controls summary small{display:none}}
@media(max-width:720px){.intro{grid-template-columns:1fr;gap:20px;margin-bottom:28px}.intro-copy{border-left:0;padding-left:0;display:grid;grid-template-columns:1fr 1fr;column-gap:20px;align-items:start}.intro-copy .plain-promise{font-size:16px;margin-bottom:0}.intro-copy p{font-size:12px}.quick-links{grid-column:1/-1;margin-top:13px}.grid{grid-template-columns:1fr}.editor{border-right:0;border-bottom:1px solid var(--ink)}.preview{position:static}.qr-stage{min-height:280px}#qr canvas{max-height:310px;max-width:310px;width:100%;height:auto}.steps,.use-cases{grid-template-columns:1fr;gap:18px}.info-section{margin-top:36px}.info-section p{font-size:13px}footer{flex-wrap:wrap;gap:10px 18px}footer span{flex-basis:65%}}
@media(max-width:430px){.shell{width:calc(100% - 32px)}header .shell{min-height:62px;gap:10px}.brand-icon{width:28px;height:28px}.brand-text{font-size:19px}.brand-text span{font-size:14px}.header-privacy{font-size:9px}main{padding-top:26px}h1{font-size:clamp(41px,11.9vw,51px);margin-top:13px}.eyebrow{font-size:8px}.intro-caption{font-size:13px}.intro-copy{column-gap:12px}.editor,.preview{padding:22px 18px}.panel-heading{gap:12px}.panel-heading b{font-size:17px}.type-button{padding:9px 10px}.field-grid,.form-row{grid-template-columns:1fr}.frame-picker{grid-template-columns:repeat(3,minmax(0,1fr))}.frame-art{height:80px}.info-section h2{font-size:24px}.qr-stage{min-height:260px}footer span{flex-basis:100%;order:3}.source-note a{display:inline}}
@media print{@page{size:A4;margin:18mm}body{background:#fff}header,main,footer{display:none!important}#printSheet{display:flex;min-height:250mm;align-items:center;justify-content:center;flex-direction:column;gap:12mm}#printSheet img{width:90mm;height:auto;max-height:150mm;object-fit:contain}#printLabel{font:12pt Arial,sans-serif;max-width:160mm;overflow-wrap:anywhere;text-align:center}}