html { scroll-behavior: smooth; }

/* Base */
body { font-family: "Cairo", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans Arabic", "Noto Sans", sans-serif; }

/* Helpers */
.muted { color: rgba(15, 23, 42, 0.70); }

/* Details/summary */
details > summary { list-style: none; cursor: pointer; }
details > summary::-webkit-details-marker { display: none; }
.chev { transition: transform 200ms ease; }
details[open] .chev { transform: rotate(180deg); }