/* Shared by rbik.site and home.rbik.site: colors, grid paper, fonts. */
:root { color-scheme: light dark; --fg: #2b2b2b; --muted: #6e6a62; --bg: #fbf7ec; --ink: #1f3d8f; --rule: #d3deec; --mark: #ffe58a; }
@media (prefers-color-scheme: dark) { :root { --fg: #e4e1d8; --muted: #a29d92; --bg: #1c1d21; --ink: #9db7ff; --rule: #2a2f3b; --mark: #4a4220; } }
body { margin: 0; min-height: 100vh; color: var(--fg); font: 21px/2rem "Patrick Hand", "Comic Sans MS", cursive;
       background: linear-gradient(var(--rule) 1px, transparent 1px) 0 0 / 2rem 2rem,
                   linear-gradient(90deg, var(--rule) 1px, transparent 1px) 0 0 / 2rem 2rem, var(--bg); }
main { max-width: 46rem; margin: 4rem auto 2rem; padding: 0 1rem; }
a { color: var(--ink); text-decoration: none; }
a:hover { background: linear-gradient(transparent 55%, var(--mark) 55%, var(--mark) 90%, transparent 90%); }
@media (max-width: 600px) { main { padding: 0 1rem; } }