:root{color-scheme:dark;--bg:#090b10;--card:#141821;--line:#2a3140;--text:#f4f6fa;--muted:#98a2b3;--red:#e44355;--cyan:#6fe7dd}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 70% 0,#1c2635 0,transparent 34%),var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}main{width:min(880px,calc(100% - 32px));margin:0 auto;padding:54px 0}header{padding:26px 4px}h1{font-size:clamp(40px,7vw,76px);line-height:1;letter-spacing:-.05em;margin:.2em 0}.eyebrow{color:var(--cyan);font:700 12px/1 monospace;letter-spacing:.2em}section{background:color-mix(in srgb,var(--card) 92%,transparent);border:1px solid var(--line);border-radius:20px;padding:26px;margin:18px 0;box-shadow:0 20px 60px #0005}h2{margin-top:0}label{display:grid;gap:8px}input,button{font:inherit;border-radius:11px;padding:12px 15px;border:1px solid var(--line)}input{background:#0d1118;color:var(--text);width:100%;margin:8px 0 12px}button{background:var(--red);color:white;font-weight:700;cursor:pointer}.secondary{background:#253044}.ghost{background:transparent}.actions{display:flex;flex-wrap:wrap;gap:10px}.hint,footer{color:var(--muted);font-size:14px}pre{white-space:pre-wrap;word-break:break-word;color:#cbd5e1;background:#0d1118;border-radius:12px;padding:16px;min-height:100px}.progress{margin-top:22px;display:grid;grid-template-columns:1fr 1fr;gap:12px}.progress div{display:grid;background:#0d1118;padding:12px;border-radius:10px}.progress span{color:var(--muted);font-size:12px}.progress progress{grid-column:1/-1;width:100%;accent-color:var(--cyan)}#qrbox{margin-top:24px;padding:20px;background:white;color:#111;border-radius:14px;width:max-content;max-width:100%}#qrcode img,#qrcode svg{display:block;max-width:240px}footer{text-align:center;padding:26px}@media(max-width:600px){main{padding-top:20px}.actions button{width:100%}}