/* T99 Platform — shared */
:root {
  --admin-bg: #0f1419;
  --admin-panel: #1a2332;
  --admin-border: #2d3a4f;
  --admin-text: #e7ecf3;
  --admin-muted: #8b9cb3;
  --admin-accent: #3b82f6;
  --admin-ok: #22c55e;
  --admin-warn: #f59e0b;
  --admin-danger: #ef4444;
  --doc-sidebar: #eceff1;
  --doc-sidebar-text: #37474f;
  --doc-sidebar-active: #fff;
  --doc-center: #fafafa;
  --doc-code-bg: #263238;
  --doc-code-text: #eceff1;
  --doc-border: #cfd8dc;
  --doc-link: #1565c0;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "Segoe UI", Roboto, system-ui, sans-serif; }
.hidden { display: none !important; }
.mono { font-family: Consolas, "Courier New", monospace; font-size: 0.82rem; word-break: break-all; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; height: 48px; border-bottom: 1px solid var(--doc-border);
  background: #fff; position: sticky; top: 0; z-index: 100;
}
.topbar .brand { font-weight: 700; font-size: 0.95rem; color: #263238; }
.topbar nav a {
  margin-left: 16px; text-decoration: none; color: var(--doc-link);
  font-size: 0.875rem; font-weight: 500;
}
.topbar nav a.active { color: #263238; border-bottom: 2px solid var(--doc-link); padding-bottom: 2px; }
.toast {
  position: fixed; bottom: 20px; right: 20px; background: var(--admin-ok);
  color: #fff; padding: 12px 20px; border-radius: 6px; z-index: 999;
}
.toast.err { background: var(--admin-danger); }