/* ════════════════════════════════════════════════════════════════════
   rule-builder/rb-audit.css — Rule Builder > Audit Log

   Only what the shared pieces don't already provide: rpa-stats,
   um-card / um-toolbar / um-seg / um-table / um-av (User Management),
   ipe-chip, ipe-drawer and ipe-diff-* do the rest. Theme tokens only,
   so light and dark both follow the app.

   No strikethrough anywhere. Old values sit in a quiet neutral token,
   new values are emphasised, an arrow joins them, and a deleted rule
   keeps its name in normal type with a status label.
   ════════════════════════════════════════════════════════════════════ */

.rba { display: flex; flex-direction: column; gap: 16px; }
.rba.db-layout { padding-top: 12px; }
.rba [hidden] { display: none !important; }
.rba-intro { margin: 0; font-size: 0.86rem; color: var(--ink-2); max-width: 78ch; }

/* stat strip (rpa-stats grid from unified.css) */
.rba-stats { margin-bottom: 0; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.rba-stat { padding: 14px 18px; }
.rba-stat .value { font-variant-numeric: tabular-nums; }
.rba-hint { margin-top: 2px; font-size: 0.74rem; color: var(--ink-3); }
.rba-stat--warn { border-color: var(--warn-border); background: var(--warn-soft); }
.rba-stat--warn .value { color: var(--warn); }
.rba-stat--ok .value { color: var(--pos); }

/* toolbar */
.rba-toolbar { row-gap: 10px; }
.rba-toolbar .um-search { flex: 1 1 240px; max-width: 340px; }
.rba-toolbar .um-select { height: 36px; width: auto; max-width: 200px; flex: 0 1 auto; }
.rba-toolbar .um-seg > button { min-height: 34px; }
.rba-wf { margin-left: auto; white-space: nowrap; font-size: 0.82rem; }
.rba-export svg { flex: none; }

.rba-chips { display: flex; gap: 8px; flex-wrap: wrap; padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--surface-1); }
.rba-chip {
  display: inline-flex; align-items: center; gap: 6px; font-size: 0.8rem; color: var(--ink-2);
  padding: 3px 4px 3px 10px; border-radius: 999px; border: 1px solid var(--accent-border); background: var(--accent-soft);
}
.rba-chip b { color: var(--ink); font-weight: 600; }
.rba-chip button {
  width: 22px; height: 22px; border-radius: 50%; border: 0; background: transparent; color: var(--ink-2);
  display: inline-flex; align-items: center; justify-content: center; cursor: pointer;
}
.rba-chip button:hover, .rba-chip button:focus-visible { background: var(--surface); color: var(--ink); outline: none; }

/* table */
.rba-table td { vertical-align: top; }
.rba-c-when { width: 112px; }
.rba-c-ev { width: 118px; }
.rba-c-who { width: 176px; }
.rba-c-appr { width: 156px; }
.rba-c-src { width: 112px; }
.rba-c-rule { min-width: 200px; }
.rba-row { cursor: pointer; }
.rba-row:focus-visible td { background: var(--accent-soft); outline: none; }
.rba-row:focus-visible td:first-child { box-shadow: inset 3px 0 0 var(--accent); }
.rba-row--wf td { background: var(--surface-1); }
.rba-row--wf td:first-child { box-shadow: inset 3px 0 0 var(--border-strong); }
.rba-child td:first-child { box-shadow: inset 3px 0 0 var(--accent-border); }
.rba-child .rba-c-rule { padding-left: 26px; }
.rba-hidden { display: none; }

.rba-when { display: flex; flex-direction: column; font-family: var(--font-mono); font-size: 0.78rem; font-variant-numeric: tabular-nums; color: var(--ink); white-space: nowrap; }
.rba-when span { font-family: var(--font-sans); font-size: 0.74rem; color: var(--ink-3); }

.rba-rule {
  border: 0; background: none; padding: 0; text-align: left; cursor: pointer;
  font: 600 0.86rem var(--font-sans); color: var(--ink); line-height: 1.35;
}
.rba-rule:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.rba-rule:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }
.rba-rule--group { color: var(--accent); }
.rba-meta { margin-top: 2px; font-size: 0.74rem; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: center; }
/* A rule that no longer exists: plain name, a quiet status label. */
.rba-gone {
  display: inline-flex; align-items: center; gap: 4px; padding: 0 7px; border-radius: 999px;
  border: 1px solid var(--neg-border); background: var(--neg-soft); color: var(--neg);
  font-size: 0.68rem; font-weight: 600; line-height: 1.6;
}

/* event chips: same tones as ipe-chip */
.rba-ev {
  display: inline-flex; align-items: center; gap: 5px; padding: 1px 9px; border-radius: 999px; white-space: nowrap;
  border: 1px solid var(--border-strong); background: var(--surface-2); color: var(--ink-2);
  font-size: 0.7rem; font-weight: 700; line-height: 1.55;
}
.rba-ev::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.rba-ev--created { background: var(--pos-soft); color: var(--pos); border-color: var(--pos-border); }
.rba-ev--edited { background: var(--note-soft); color: var(--note); border-color: var(--note-border); }
.rba-ev--paused { background: var(--warn-soft); color: var(--warn); border-color: var(--warn-border); }
.rba-ev--resumed { background: var(--cat-2-soft); color: var(--cat-2); border-color: var(--cat-2-border); }
.rba-ev--deleted { background: var(--neg-soft); color: var(--neg); border-color: var(--neg-border); }
.rba-ev--system_update { background: var(--cat-10-soft); color: var(--cat-10); border-color: var(--cat-10-border); }
.rba-ev--wf { background: var(--surface); border-style: dashed; }

/* people */
.rba-who { display: flex; gap: 8px; align-items: center; min-width: 0; }
.rba-av { width: 26px; height: 26px; font-size: 0.64rem; }
.rba-who-t { display: flex; flex-direction: column; min-width: 0; }
.rba-who-n { font-size: 0.84rem; color: var(--ink); overflow-wrap: anywhere; }

.rba-tag {
  display: inline-flex; align-items: center; padding: 1px 8px; border-radius: 6px; white-space: nowrap;
  border: 1px solid var(--border-strong); background: var(--surface-2); color: var(--ink-2); font-size: 0.74rem; font-weight: 600;
}
.rba-tag--warn { border-color: var(--warn-border); background: var(--warn-soft); color: var(--warn); }
.rba-src { display: inline-block; font-size: 0.76rem; color: var(--ink-2); background: var(--surface-2); border-radius: 4px; padding: 1px 6px; white-space: nowrap; }

/* "what changed": label, then before -> after */
.rba-chgs { display: flex; flex-direction: column; gap: 6px; }
.rba-chg { display: flex; flex-direction: column; gap: 2px; font-size: 0.8rem; min-width: 0; }
.rba-chg-k { color: var(--ink-3); font-size: 0.74rem; }
.rba-chg-v { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 6px; }
.rba-from, .rba-to {
  display: inline-block; max-width: 100%; padding: 0 6px; border-radius: 4px; line-height: 1.6;
  font-variant-numeric: tabular-nums; overflow-wrap: anywhere;
}
.rba-from { color: var(--ink-2); background: var(--surface-2); border: 1px solid var(--border); }
.rba-to { color: var(--ink); font-weight: 600; background: var(--pos-soft); border: 1px solid var(--pos-border); }
.rba-arrow { width: 14px; height: 14px; flex: none; fill: none; stroke: var(--ink-3); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.rba-plain { font-size: 0.8rem; color: var(--ink); }
.rba-note { font-size: 0.8rem; color: var(--ink-2); font-style: italic; }

.rba-foot { border-top: 1px solid var(--border-light); }

/* ── drawer ──────────────────────────────────────────────────────── */
.rba-dhead { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.rba-banner {
  display: flex; gap: 8px; align-items: flex-start; margin: 0 0 14px; padding: 10px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--neg-border); background: var(--neg-soft); color: var(--ink); font-size: 0.84rem;
}
.rba-banner svg { color: var(--neg); flex: none; margin-top: 2px; }
.rba-banner b { color: var(--neg); }
.rba-evcard { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 18px; }
.rba-evcard header {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 10px 14px;
  background: var(--surface-1); border-bottom: 1px solid var(--border); font-size: 0.86rem;
}
.rba-push { margin-left: auto; }
.rba-kv { display: grid; grid-template-columns: 112px minmax(0, 1fr); gap: 7px 12px; margin: 0; padding: 12px 14px; font-size: 0.84rem; }
.rba-kv dt { color: var(--ink-3); }
.rba-kv dd { margin: 0; color: var(--ink); min-width: 0; overflow-wrap: anywhere; }
.rba-what { padding: 12px 14px; border-top: 1px solid var(--border); }
.rba-what:empty { display: none; }
.rba-h {
  margin: 0 0 10px; font-family: var(--font-display); font-weight: 600; font-size: 0.72rem;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3);
}
.rba-gap { margin: -4px 0 10px; }

.rba-tl { list-style: none; margin: 0 0 14px; padding: 0; position: relative; }
.rba-tl::before { content: ''; position: absolute; left: 10px; top: 8px; bottom: 8px; width: 2px; background: var(--border); }
.rba-tl-i { position: relative; padding-left: 30px; }
.rba-tl-i::before {
  content: ''; position: absolute; left: 4px; top: 12px; width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--border-strong); background: var(--surface);
}
.rba-tl--created::before { border-color: var(--pos); background: var(--pos-soft); }
.rba-tl--edited::before { border-color: var(--note); background: var(--note-soft); }
.rba-tl--paused::before { border-color: var(--warn); background: var(--warn-soft); }
.rba-tl--resumed::before { border-color: var(--cat-2); background: var(--cat-2-soft); }
.rba-tl--deleted::before { border-color: var(--neg); background: var(--neg-soft); }
.rba-tl--wf::before { border-style: dashed; }
.rba-tl-i button {
  width: 100%; display: flex; flex-direction: column; gap: 1px; text-align: left; cursor: pointer;
  border: 1px solid transparent; background: transparent; border-radius: 8px; padding: 7px 10px; font: 0.82rem var(--font-sans); color: var(--ink-2);
}
.rba-tl-i button:hover { background: var(--surface-1); border-color: var(--border); }
.rba-tl-i button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.rba-tl-i.is-sel button { background: var(--accent-soft); border-color: var(--accent-border); }
.rba-tl-t b { color: var(--ink); font-weight: 600; }
.rba-ro { display: flex; gap: 6px; align-items: center; margin: 0 0 12px; font-size: 0.78rem; color: var(--ink-3); }
.rba-actions { display: flex; gap: 8px; flex-wrap: wrap; }

@media (max-width: 760px) {
  .rba-wf { margin-left: 0; }
  .rba-kv { grid-template-columns: 1fr; }
}

.rbh-audit { margin: 0 0 10px; }