:root{--buncss-light:initial;--buncss-dark: ;color-scheme:light dark;--bg:#0b0f14;--card:#111827;--text:#e5e7eb;--muted:#94a3b8;--border:#1f2937;--accent:#38bdf8}@media (prefers-color-scheme:dark){:root{--buncss-light: ;--buncss-dark:initial}}@media (prefers-color-scheme:light){:root{--bg:#f8fafc;--card:#fff;--text:#0f172a;--muted:#64748b;--border:#e2e8f0;--accent:#2563eb}}html{text-size-adjust:100%;-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);display:flex;justify-content:center;align-items: center;min-height:100vh;margin:0;font-family:Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;width:min(92vw,420px);padding:28px;box-shadow:0 24px 48px #0003}h1{margin:0 0 8px;font-size:22px}p{color:var(--muted);margin:0 0 20px}form{display:flex;flex-direction:column;gap:12px}input{border:1px solid var(--border);color:var(--text);letter-spacing:.18em;text-align:center;background:0 0;border-radius:10px;padding:12px 14px;font-size:18px}button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:12px 16px;font-size:16px}.error{color:#f87171;min-height:18px;font-size:13px}