rustango 0.40.0

<style>
* { box-sizing: border-box; }
body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  margin: 0;
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-fg);
}
.layout { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
aside.sidebar {
  background: var(--color-bg-sidebar);
  border-right: 1px solid var(--color-border);
  padding: var(--space-5) var(--space-4);
  font-size: 0.9em;
}
aside.sidebar img.brand-logo {
  /* See _op_styles.html for the flex `min-height: auto` rationale (#73). */
  display: block;
  height: 40px;
  width: auto;
  max-width: 100%;
  align-self: flex-start;
  object-fit: contain;
  margin: 0 0 var(--space-3) 0;
}
aside.sidebar h2 {
  margin: 0 0 var(--space-1) 0;
  font-size: 1.1rem;
  color: var(--color-accent);
  letter-spacing: 0.03em;
}
aside.sidebar p.subtitle {
  margin: 0 0 var(--space-5) 0;
  font-size: 0.85em;
  color: var(--color-fg-muted);
}
aside.sidebar h3 {
  margin: var(--space-4) 0 0.35rem 0;
  font-size: 0.8em;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-fg-subtle);
  font-weight: var(--font-weight-bold);
}
aside.sidebar ul { list-style: none; padding: 0; margin: 0; }
aside.sidebar li { margin: 0.15rem 0; }
/* Sidebar nav links — Home / Activity / model items. The
   `:not(.btn)` carve-out keeps `.btn` / `.btn-link` family
   members (Change password, Logout's POST button, etc.) from
   inheriting the block layout + neutral color, so they render
   with their own variant styling instead. */
aside.sidebar a:not(.btn):not(.btn-link):not(.btn-row-action) {
  display: block;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-fg);
  text-decoration: none;
}
aside.sidebar a:not(.btn):not(.btn-link):not(.btn-row-action):hover {
  background: var(--color-bg-hover);
}
aside.sidebar a.active {
  background: var(--color-bg-surface);
  color: var(--color-accent);
  font-weight: var(--font-weight-bold);
  box-shadow: var(--shadow-sm);
}
aside.sidebar .empty {
  color: var(--color-fg-subtle);
  font-style: italic;
  font-size: 0.85em;
}
main.content { padding: var(--space-5) var(--space-6); }
nav.breadcrumb ol {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-4) 0;
  display: flex;
  gap: 0.35rem;
  align-items: center;
  flex-wrap: wrap;
  font-size: 0.9em;
  color: var(--color-fg-subtle);
}
nav.breadcrumb li + li::before { content: "›"; margin-right: 0.35rem; color: var(--color-border-strong); }
nav.breadcrumb a { color: var(--color-fg-subtle); }
nav.breadcrumb a:hover { color: var(--color-accent); text-decoration: none; }
nav.breadcrumb strong { color: var(--color-fg); }
table { border-collapse: collapse; width: 100%; background: var(--color-bg-surface); }
th, td {
  border: 1px solid var(--color-border);
  padding: 0.35rem 0.6rem;
  text-align: left;
  vertical-align: top;
}
th { background: var(--color-bg-sidebar); }
a { color: var(--color-link); text-decoration: none; }
a:hover { text-decoration: underline; }
small { color: var(--color-fg-subtle); font-weight: var(--font-weight-normal); }
em { color: var(--color-fg-subtle); }
input[type=text],
input[type=number],
input[type=date],
input[type=datetime-local],
input[type=search],
textarea {
  width: 100%;
  box-sizing: border-box;
  padding: var(--space-1) 0.4rem;
  font: inherit;
  background: var(--color-bg-input);
  color: var(--color-fg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}
textarea { min-height: 4rem; }
input:invalid, textarea:invalid { border-color: var(--color-error-border); outline-color: var(--color-error-border); }
input:invalid + small, textarea:invalid + small { color: var(--color-error-fg); }
.error {
  background: var(--color-error-bg);
  border: 1px solid var(--color-error-border);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--color-error-fg);
}
.muted { color: var(--color-fg-subtle); }
.search { display: flex; gap: var(--space-2); align-items: center; margin: var(--space-2) 0; }
.search input[type=search] { flex: 1; }
.active-filters { color: var(--color-fg-muted); font-size: 0.9em; margin: var(--space-2) 0; }
.active-filters code {
  background: var(--color-info-bg);
  color: var(--color-info-fg);
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
}
.pager { margin-top: var(--space-4); }

/* --------------------------------------------------------------------
   Button + link-button system (#253 follow-up — admin UX
   consolidation). Mirrors the operator console's `.btn` family in
   `_op_styles.html` so both surfaces feel coherent. Works on both
   <a> and <button> so links rendered next to form-submit buttons
   (e.g. detail-page "Edit / Delete" row) look like siblings.

   - `.btn`           — baseline (padding, border, hover, accessible focus ring)
   - `.btn-primary`   — accent fill, white text (primary CTA)
   - `.btn-secondary` — surface fill, accent border (secondary action)
   - `.btn-danger`    — red border/text, red fill on hover (destructive)
   - `.btn-link`      — text-style, no border (subtle nav)
   - `.btn-row-action`— pill-shaped accent-tinted (per-row table actions)

   Bare `<button>` inherits the baseline via the default selector
   below; templates that want a colored variant add `.btn` plus a
   modifier class.
   ------------------------------------------------------------------ */

/* Button + button-like-anchor baseline. `.btn, button` as a
   selector list — each selector takes its own specificity
   (`button` = 0,0,1; `.btn` = 0,1,0). The variant classes below
   are also 0,1,0 and declared later, so they win by source order
   for any property they re-declare. No `:not()` negations needed
   (and the previous `button:not(.theme-toggle)` shape was the bug
   that out-specified `.btn-secondary`). `.theme-toggle` (0,1,0)
   declared later in the file overrides this for the theme switcher. */
.btn, button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font: inherit;
  padding: 0.4rem var(--space-4);
  cursor: pointer;
  background: var(--color-bg-surface);
  color: var(--color-fg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  line-height: 1.2;
}
.btn:hover, button:hover { background: var(--color-bg-hover); }
.btn:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Variants — same specificity as `.btn` (0,1,0), declared later so
   source order wins. Each variant overrides the surface color +
   border-color + text color. */
.btn-primary {
  background: var(--color-accent);
  color: var(--color-fg-on-accent, #fff);
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-fg-on-accent, #fff);
}
.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-secondary:hover {
  background: var(--color-accent-bg-soft);
  color: var(--color-accent);
}
.btn-danger {
  background: transparent;
  color: var(--color-error-fg, #b04141);
  border-color: var(--color-error-fg, #b04141);
}
.btn-danger:hover {
  background: var(--color-error-fg, #b04141);
  color: #fff;
}
.btn-link {
  background: transparent;
  border: 0;
  padding: 0.4rem 0;
  /* Use accent for high contrast in both themes. Previously used
     `--color-link` which is too muted on the warm beige sidebar
     surface, and `--color-fg-muted` (op console's prior shape) was
     even worse. Accent is the same color the rest of the chrome
     uses for active links. */
  color: var(--color-accent);
  text-decoration: none;
  font-weight: var(--font-weight-medium, 500);
}
.btn-link:hover { color: var(--color-accent-hover); text-decoration: underline; }
.btn-row-action {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-sm);
  background: var(--color-accent-bg-soft);
  color: var(--color-accent);
  font-size: 0.85em;
  text-decoration: none;
  border: 1px solid transparent;
  line-height: 1.4;
}
.btn-row-action:hover {
  background: var(--color-accent);
  color: var(--color-fg-on-accent, #fff);
  text-decoration: none;
}

/* Container for a row of action buttons (detail page, form submit
   row, sidebar Logout). Flex-row, consistent gap, wraps on small
   screens. */
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  margin: var(--space-3) 0;
}

/* Django-shape `help_text` caption rendered under each form input
   when `#[rustango(help_text = "...")]` is set on the field. */
.help-text {
  margin: var(--space-1) 0 0;
  color: var(--color-fg-muted);
  font-size: 0.85em;
  line-height: 1.4;
  max-width: 42em;
}
dl { display: grid; grid-template-columns: max-content 1fr; gap: var(--space-1) var(--space-4); }
dt { font-weight: var(--font-weight-bold); }
.audit-cleanup {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  margin: var(--space-3) 0;
  display: flex;
  gap: var(--space-2);
  align-items: center;
  flex-wrap: wrap;
  font-size: 0.9em;
}
.audit-cleanup label { display: inline-flex; gap: 0.35rem; align-items: center; }
.audit-cleanup small.muted { font-size: 0.85em; }
.user-roles-panel { margin-top: var(--space-6); padding-top: var(--space-4); border-top: 1px solid var(--color-border); }
.user-roles-panel h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-fg-subtle);
  margin-bottom: var(--space-2);
}
.user-roles-panel h3 {
  font-size: 0.9em;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-fg-subtle);
  margin: 0 0 var(--space-2) 0;
}
.user-roles-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.user-roles-list, .user-perms-list { padding-left: 0; list-style: none; margin: 0; }
.user-roles-list li, .user-perms-list li {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-2);
  margin-bottom: var(--space-1);
  font-size: 0.9em;
}
.user-perms-list code { font-family: var(--font-family-mono); font-size: 0.95em; }
.user-roles-help { margin-top: var(--space-3); color: var(--color-fg-subtle); }
.audit-trail { margin-top: var(--space-6); padding-top: var(--space-4); border-top: 1px solid var(--color-border); }
.audit-trail h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-fg-subtle);
  margin-bottom: var(--space-2);
}
.audit-trail ol { padding-left: 0; list-style: none; }
.audit-trail li {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-2);
}
.audit-op {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  font-size: 0.75em;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: var(--font-weight-bold);
}
.audit-op-create { background: var(--color-audit-create-bg); color: var(--color-audit-create-fg); }
.audit-op-update { background: var(--color-audit-update-bg); color: var(--color-audit-update-fg); }
.audit-op-delete { background: var(--color-audit-delete-bg); color: var(--color-audit-delete-fg); }
.audit-op-soft_delete { background: var(--color-audit-delete-bg); color: var(--color-audit-delete-fg); }
.audit-op-restore { background: var(--color-audit-restore-bg); color: var(--color-audit-restore-fg); }
.audit-op-action { background: var(--color-audit-action-bg); color: var(--color-audit-action-fg); }
.audit-changes {
  font-family: var(--font-family-mono);
  font-size: 0.8em;
  background: var(--color-bg-code);
  padding: 0.35rem var(--space-2);
  border-radius: var(--radius-sm);
  margin: 0.35rem 0 0 0;
  white-space: pre-wrap;
  word-break: break-all;
}
.form-fieldset {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin: 0 0 var(--space-4) 0;
  padding: var(--space-2) var(--space-4) var(--space-4);
  background: var(--color-bg-surface);
}
.form-fieldset legend {
  padding: 0 var(--space-2);
  font-weight: var(--font-weight-bold);
  color: var(--color-fg-muted);
  font-size: 0.9em;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.form-fieldset > table { background: transparent; }
.form-fieldset > table th,
.form-fieldset > table td {
  border: none;
  border-bottom: 1px solid var(--color-border);
  padding: 0.35rem 0.4rem;
}
.list-form { margin: 0; }
.action-bar {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  padding: 0.35rem var(--space-2);
  background: var(--color-bg-sidebar);
  border: 1px solid var(--color-border);
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  font-size: 0.9em;
}
.action-bar select { padding: var(--space-1) 0.35rem; font: inherit; }
.checkbox-col { width: 28px; text-align: center; padding: 0.15rem var(--space-1) !important; }
.list-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: var(--space-5);
  align-items: start;
}
.list-shell.no-rail { grid-template-columns: 1fr; }
.list-rail { font-size: 0.9em; }
.list-rail .facet {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-3);
}
.list-rail .facet h4 {
  margin: 0 0 0.35rem 0;
  font-size: 0.8em;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-fg-subtle);
  font-weight: var(--font-weight-bold);
}
.list-rail .facet ul { list-style: none; padding: 0; margin: 0; }
.list-rail .facet li { margin: 0.15rem 0; line-height: 1.4; }
.list-rail .facet a { color: var(--color-fg); }
.list-rail .facet a.active { color: var(--color-accent); font-weight: var(--font-weight-bold); }
.list-rail .facet .count { color: var(--color-fg-subtle); font-size: 0.85em; }
.list-rail .facet .facet-more a { color: var(--color-fg-subtle); font-style: italic; }
.list-rail .facet .facet-more a:hover { color: var(--color-accent); }
.theme-toggle {
  position: fixed;
  bottom: var(--space-4);
  right: var(--space-4);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-surface);
  color: var(--color-fg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font: inherit;
  font-size: var(--font-size-sm);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  z-index: 100;
}
.theme-toggle:hover { border-color: var(--color-accent); color: var(--color-accent); }
/* v0.27.8 (#78) — operator impersonation banner. Bright,
   high-contrast, sticky at the top so it can't be missed
   while scrolling the admin. */
.impersonation-banner {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0.6rem 1rem;
  background: var(--color-warning-bg, #fff4cc);
  color: var(--color-warning-fg, #6b4500);
  border-bottom: 2px solid var(--color-warning-fg, #6b4500);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.impersonation-banner code {
  background: rgba(0, 0, 0, 0.08);
  padding: 0.05em 0.35em;
  border-radius: 0.2em;
  font-size: 12px;
}
.impersonation-banner .btn-end-impersonation {
  margin-left: auto;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-sm, 4px);
  background: var(--color-warning-fg, #6b4500);
  color: var(--color-bg-surface, #fff);
  border: 0;
  font: inherit;
  font-weight: var(--font-weight-bold, 600);
  cursor: pointer;
}
.impersonation-banner .btn-end-impersonation:hover {
  filter: brightness(1.15);
}
.theme-toggle:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* Boolean column rendering — replaces literal "true"/"false" text
   with a checkbox glyph. Filled ☑ in the accent color when true,
   empty ☐ in muted color otherwise. Lets eyes scan tens of rows
   in a single sweep. */
.rcms-bool { font-size: 1.2em; line-height: 1; }
.rcms-bool.yes { color: var(--color-accent); }
.rcms-bool.no { color: var(--color-text-muted); }
@media (max-width: 1000px) {
  .list-shell { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .layout { grid-template-columns: 1fr; }
  aside.sidebar { border-right: none; border-bottom: 1px solid var(--color-border); }
  main.content { padding: var(--space-4); }
}
</style>