:root{--bg:#eef1f5;--card:#fff;--ink:#16202b;--muted:#56636f;--line:#d6dde5;--accent:#2f5bea;--accent-pressed:#2449c4;--accent-ink:#fff;--accent-soft:#e4ebff;--display:#16202b;--display-ink:#f4f7fb;--screen:#fff;--screen-edge:#b8c1cc;--key:#f4f6f9;--key-edge:#cfd6de;--key-digit-ink:#1d4ea3;--key-fn:#d3d9e0;--key-op:#5f6b78;--key-op-ink:#fff;--key-clear:#b8321f;--danger:#b42318;--danger-soft:#fdecea;--success:#1a7f4b;--success-soft:#dff3e7;--warning:#9a5b00;--warning-soft:#fff1d6;--info:#2f5bea;--shadow:0 10px 30px #16202b29;--radius:14px;--tap:48px;--font:"IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--mono:"IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;font-family:var(--font);color:var(--ink);background:var(--bg);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;-webkit-text-size-adjust:100%}@media (prefers-color-scheme:dark){:root{--bg:#0e141b;--card:#16202b;--ink:#e7edf3;--muted:#9aa9b8;--line:#2a3643;--accent:#7c9cff;--accent-pressed:#9bb3ff;--accent-ink:#0e141b;--accent-soft:#1f2c4d;--display:#0a0f14;--display-ink:#e7edf3;--screen:#0a0f14;--screen-edge:#2f3c4a;--key:#1c2733;--key-edge:#2a3643;--key-digit-ink:#9bb3ff;--key-fn:#2c3845;--key-op:#4a5666;--key-op-ink:#fff;--key-clear:#c0392b;--danger:#ff8a80;--danger-soft:#3a1c1a;--success:#6fdc9c;--success-soft:#173524;--warning:#f5c46b;--warning-soft:#3a2c10;--info:#7c9cff;--shadow:0 10px 30px #00000073;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}body{background:var(--bg);min-height:100dvh;margin:0;font-size:16px;line-height:1.5}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;touch-action:manipulation}:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.app{max-width:1040px;padding-block:calc(20px + 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