html{scroll-behavior:smooth;scroll-padding-top:24px}
[hidden]{display:none!important}
.hero .intro{max-width:740px}.hero{padding-bottom:48px}
.actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin:20px 0}
button,.button,.file-label{font:inherit;font-weight:700;line-height:1.3;border:1px solid var(--ink);background:transparent;color:var(--ink);padding:13px 20px;min-height:48px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:12px}
button:hover,.button:hover{background:#e9edf3;color:var(--ink)}
.primary{background:var(--ink);color:var(--paper)}.primary:hover{background:#243655;color:var(--paper)}
button:disabled{opacity:.55;cursor:default}button:focus-visible,.button:focus-visible,textarea:focus-visible,input:focus-visible{outline:3px solid var(--ink);outline-offset:4px}
.file-label{position:relative;border-style:dashed;overflow:hidden}.file-label input{position:absolute;inset:0;opacity:0;width:100%;cursor:pointer}.file-label:focus-within{outline:3px solid var(--ink);outline-offset:4px}
fieldset{border:0;padding:0;margin:20px 0;display:flex;gap:10px;flex-wrap:wrap}legend{font-weight:700;margin-bottom:12px}
textarea{display:block;width:100%;margin:8px 0;border:1px solid #758097;background:white;color:var(--ink);padding:18px;resize:vertical;font:13px/1.6 "IBM Plex Mono Medium",monospace;min-height:140px}
label{font-weight:700}#question-json{max-height:400px;overflow:auto}.feedback{border-left:3px solid var(--ink);padding:4px 22px;margin:24px 0;background:#eef0f3}.feedback h3{margin-top:15px}#scan-status{font-weight:700}#result-text{max-height:520px;overflow:auto}#share-preview{font:15px/1.7 Inter,sans-serif}
.share-name{display:flex;gap:10px;align-items:flex-start;font-weight:400;margin:16px 0}.share-name input{margin-top:5px;width:auto}
#challenge-complete{margin-top:24px}#result-heading{font-size:32px}#copy-status{min-height:26px}#copy-fallback{padding:24px 0}
.tool-description{font-size:22px;max-width:780px;line-height:1.5;margin:24px 0 12px}
@media(max-width:600px){.actions>*{max-width:100%}fieldset{flex-direction:column}fieldset button{width:100%}.hero h1{font-size:48px}textarea{padding:12px}.feedback{padding:4px 14px}#question-json{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}