:root{color-scheme:light;--ink:#1f2328;--muted:#59636e;--line:#d1d9e0;--accent:#0969da;font:15px/1.5 system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#f6f8fa}header{padding:20px 32px;background:#fff;border-bottom:1px solid var(--line)}a{color:var(--accent)}header a{color:inherit;text-decoration:none;font-size:20px;font-weight:700}main{max-width:470px;margin:9vh auto;padding:0 24px}h1{font-size:30px;line-height:1.2;letter-spacing:-.03em}p{color:var(--muted)}.panel{padding:25px;background:white;border:1px solid var(--line);border-radius:9px}button,.primary{font-family:inherit;font-size:15px;font-weight:600;line-height:1.4;display:block;text-align:center;border:1px solid var(--line);border-radius:6px;padding:11px 16px;text-decoration:none;cursor:pointer}.primary{background:var(--accent);color:white;border-color:var(--accent)}label{display:block;margin:14px 0 7px}input{font:inherit;padding:10px;width:100%;border:1px solid var(--line);border-radius:6px}summary{cursor:pointer;font-weight:600}details{margin-top:25px}small{color:var(--muted)}#error{white-space:pre-wrap;color:#b42318}footer{margin-top:24px;font-size:13px;color:var(--muted)}button{margin-top:14px;width:100%}