:root{color-scheme:light dark;--bg:#f4f4f5;--card:#fff;--text:#18181b;--muted:#52525b;--line:#d4d4d8;--button:#18181b;--button-text:#fff;--error:#b91c1c}
@media(prefers-color-scheme:dark){:root{--bg:#09090b;--card:#18181b;--text:#fafafa;--muted:#a1a1aa;--line:#3f3f46;--button:#fafafa;--button-text:#18181b;--error:#fca5a5}}
*{box-sizing:border-box}body{margin:0;min-height:100svh;display:grid;place-items:center;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;padding:24px}
main{width:min(100%,420px);padding:32px;background:var(--card);border:1px solid var(--line);border-radius:16px}.brand{font-weight:750;letter-spacing:.08em;font-size:14px;margin-bottom:28px}.brand span{font-weight:500;color:var(--muted);margin-left:8px}h1{font-size:26px;line-height:1.3;letter-spacing:-.02em;margin:0 0 12px}p{margin:0 0 24px;color:var(--muted);overflow-wrap:anywhere}label{display:block;margin-bottom:8px;font-size:14px}input,button{font:inherit;width:100%;min-height:48px;border-radius:8px}input{padding:10px 12px;color:var(--text);background:var(--bg);border:1px solid var(--line);margin-bottom:20px}button{padding:10px 16px;border:1px solid transparent;background:var(--button);color:var(--button-text);font-weight:600;cursor:pointer}button:disabled{cursor:wait;opacity:.6}button.secondary{color:var(--text);background:transparent;border-color:var(--line)}:focus-visible{outline:3px solid #3b82f6;outline-offset:3px}[hidden]{display:none!important}#status{font-size:14px;margin:16px 0 0;min-height:24px}#status.error{color:var(--error)}.hint{font-size:13px;margin:20px 0 0;padding-top:20px;border-top:1px solid var(--line)}@media(max-width:380px){body{padding:16px}main{padding:24px}}