app/src/index.css

@tailwind base;
@tailwind components;
@tailwind utilities;

:root { color-scheme: dark; }
html, body, #root { height: 100%; }
body {
  margin: 0;
  background: #0b0d10;
  color: #e6e9ee;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}
/* markdown */
.md p { margin: 0 0 0.6rem; line-height: 1.55; }
.md h1,.md h2,.md h3 { margin: 0.8rem 0 0.4rem; font-weight: 600; line-height: 1.3; }
.md ul,.md ol { margin: 0 0 0.6rem 1.1rem; }
.md li { margin: 0.15rem 0; }
.md code { background: #1b2026; padding: 0.1em 0.35em; border-radius: 4px; font-size: 0.85em; }
.md pre { background: #0e1116; border: 1px solid #262d36; border-radius: 8px; padding: 0.75rem; overflow-x: auto; margin: 0 0 0.6rem; }
.md pre code { background: none; padding: 0; font-size: 0.8rem; line-height: 1.5; }
.md a { color: #5b8cff; }
.md table { border-collapse: collapse; margin: 0 0 0.6rem; display: block; overflow-x: auto; }
.md th,.md td { border: 1px solid #262d36; padding: 0.3rem 0.5rem; }