:root{--bg: #f7f6f3;--panel: #ffffff;--ink: #1a1917;--muted: #6b6862;--line: #e4e1da;--accent: #d7263d;--ok: #1a7f4b;--err: #b3261e;color-scheme:light dark}:root[data-theme=dark]{--bg: #0c0b0a;--panel: #161512;--ink: #f2efe9;--muted: #9a958c;--line: #2a2823;--accent: #ff5468}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #0c0b0a;--panel: #161512;--ink: #f2efe9;--muted: #9a958c;--line: #2a2823;--accent: #ff5468}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--ink);font-family:Inter Variable,Inter,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}.shell{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.25rem;padding:2rem 1rem;max-width:26rem;margin:0 auto}.brand{font-weight:700;letter-spacing:-.02em;font-size:1.05rem}.brand:before{content:"";display:inline-block;width:.55rem;height:.55rem;border-radius:2px;background:var(--accent);margin-right:.5rem;vertical-align:baseline}h1{font-size:1.4rem;line-height:1.2;margin:0;text-align:center}.card{width:100%;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:1.25rem;display:flex;flex-direction:column;gap:.85rem}label{display:flex;flex-direction:column;gap:.35rem;font-size:.85rem;color:var(--muted)}input{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:.6rem .7rem}input:focus{outline:2px solid var(--accent);outline-offset:1px}button{font:inherit;font-weight:600;color:#fff;background:var(--accent);border:0;border-radius:8px;padding:.65rem .9rem;cursor:pointer}button:disabled{opacity:.6;cursor:default}.linkbtn{background:none;color:var(--muted);font-weight:500;padding:.35rem;text-decoration:underline;text-underline-offset:2px}.linkbtn:hover:not(:disabled){color:var(--ink)}.kv{display:grid;grid-template-columns:auto 1fr;gap:.3rem 1rem;margin:0;font-size:.9rem}.kv dt{color:var(--muted)}.kv dd{margin:0}code{font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85em}.muted{color:var(--muted);font-size:.9rem;text-align:center}.ok{color:var(--ok);text-align:center}.err{color:var(--err)}