:root {
  --bg: #f5f7fa; --panel: #ffffff; --ink: #18212b; --muted: #5b6b7c; --line: #dde3ea;
  --accent: #0f5c8c; --accent-ink: #ffffff; --ok: #1d7a46; --warn: #9a5b00; --bad: #b42318;
  --demo-bg: #fff4d6; --demo-ink: #7a4d00; --chip: #e8eef4;
  --radius: 8px; --font: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11161c; --panel: #19212a; --ink: #e6edf3; --muted: #9aa8b6; --line: #2b3642;
    --accent: #4aa3d8; --accent-ink: #0b1218; --ok: #4cc38a; --warn: #e3a83c; --bad: #f2786b;
    --demo-bg: #3a2e12; --demo-ink: #f3cf7a; --chip: #24303c;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 14px/1.45 var(--font); }
[lang="ar"] { font-family: "Segoe UI", Tahoma, "Noto Naskh Arabic", sans-serif; }
.top { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--line); }
.brand { display: flex; flex-direction: column; min-width: 0; }
.brand-en { font-weight: 650; }
.brand-ar { color: var(--muted); font-size: 12px; }
.badges { display: flex; gap: 6px; flex-wrap: wrap; flex: 1; }
.badge { padding: 2px 8px; border-radius: 999px; background: var(--chip); font-size: 12px; white-space: nowrap; }
.badge.ok { color: var(--ok); } .badge.warn { color: var(--warn); } .badge.bad { color: var(--bad); }
.who { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font-size: 13px; }
.layout { display: grid; grid-template-columns: 240px 1fr; min-height: calc(100vh - 58px); }
.nav { background: var(--panel); border-right: 1px solid var(--line); padding: 8px; }
.nav button { display: flex; flex-direction: column; align-items: flex-start; width: 100%; text-align: left; background: none; border: 0; border-radius: var(--radius); padding: 7px 10px; color: var(--ink); cursor: pointer; font: inherit; }
.nav button .ar { color: var(--muted); font-size: 12px; align-self: flex-end; }
.nav button[aria-current="page"] { background: var(--chip); font-weight: 600; }
.nav button:hover { background: var(--chip); }
.main { padding: 16px; min-width: 0; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }
.narrow { max-width: 420px; margin: 40px auto; }
h1 { font-size: 18px; margin: 0 0 12px; display: flex; flex-wrap: wrap; gap: 10px; align-items: baseline; }
h1 [lang="ar"] { font-size: 15px; color: var(--muted); font-weight: 500; }
h2 { font-size: 15px; margin: 16px 0 8px; }
label { display: block; margin: 0 0 10px; color: var(--muted); font-size: 13px; }
input, select, textarea { display: block; width: 100%; margin-top: 4px; padding: 7px 9px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--ink); font: inherit; }
textarea { min-height: 70px; }
button { font: inherit; }
.btn, form button { background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 6px; padding: 7px 12px; cursor: pointer; }
.btn.secondary { background: var(--chip); color: var(--ink); }
.btn.danger { background: var(--bad); color: #fff; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0; }
.msg { min-height: 1.2em; color: var(--bad); margin: 8px 0 0; }
.msg.ok { color: var(--ok); }
.note { color: var(--muted); margin: 6px 0 12px; }
.tblwrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; white-space: nowrap; }
tr.click { cursor: pointer; } tr.click:hover td { background: var(--chip); }
code, .mono { font-family: Consolas, "SFMono-Regular", Menlo, monospace; font-size: 12px; }
.demo { background: var(--demo-bg); color: var(--demo-ink); border-radius: 6px; padding: 6px 10px; margin: 6px 0; font-weight: 600; }
.prodbanner { background: var(--chip); color: var(--warn); border-radius: 6px; padding: 6px 10px; margin: 6px 0; font-weight: 600; overflow-wrap: anywhere; }
.state { padding: 1px 7px; border-radius: 999px; background: var(--chip); font-size: 12px; white-space: nowrap; }
.state.Released { color: var(--ok); } .state.Withdrawn, .state.Obsolete { color: var(--bad); } .state.Superseded { color: var(--muted); }
pre { background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 10px; overflow: auto; max-height: 420px; font-size: 12px; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
@media (max-width: 820px) {
  .layout { grid-template-columns: 1fr; }
  .nav { display: flex; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .nav button { flex: 0 0 auto; width: auto; }
  input, select, textarea { font-size: 16px; }
}