/* Buzón de auditoría — lista + detalle + hilo */

.panel-mailbox .mbox-shell {
  display: grid;
  gap: 1rem;
}

.mbox-kpis {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.75rem;
}

.mbox-kpis .kpi-card {
  padding: 0.85rem 1rem;
}

.mbox-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}

.mbox-toolbar .search-box {
  flex: 1 1 200px;
  min-width: 160px;
}

.mbox-layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  min-height: 420px;
}

.mbox-list-panel,
.mbox-detail-panel {
  border: 1px solid var(--border, #e6eaf0);
  border-radius: 12px;
  background: var(--surface, #fff);
  min-height: 420px;
}

.mbox-list-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.mbox-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 6px;
  overflow: auto;
  max-height: 70vh;
}

.mbox-list-item {
  display: grid;
  gap: 2px;
  text-align: left;
  padding: 10px 12px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  font: inherit;
  color: inherit;
  border-left: 3px solid transparent;
}

.mbox-list-item:hover {
  background: color-mix(in srgb, var(--accent, #1d4ed8) 6%, transparent);
}

.mbox-list-item.is-active {
  background: color-mix(in srgb, var(--accent, #1d4ed8) 10%, #fff);
  border-left-color: var(--accent, #1d4ed8);
}

.mbox-list-item.sla-breached {
  border-left-color: #b91c1c;
}

.mbox-list-item.sla-warn {
  border-left-color: #b45309;
}

.mbox-list-ref {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-muted, #6b778c);
}

.mbox-list-item strong {
  font-size: 0.92rem;
  line-height: 1.3;
}

.mbox-list-meta {
  font-size: 0.75rem;
  color: var(--text-muted, #6b778c);
}

.mbox-list-meta em {
  font-style: normal;
  font-weight: 650;
}

.mbox-list-due {
  font-size: 0.72rem;
  color: var(--text-muted, #6b778c);
}

.mbox-detail-panel {
  padding: 16px 18px 20px;
}

.mbox-detail-empty {
  display: grid;
  place-content: center;
  min-height: 360px;
  text-align: center;
  gap: 6px;
}

.mbox-detail-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border, #e6eaf0);
}

.mbox-ref {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.05em;
  color: var(--accent, #1d4ed8);
  margin-bottom: 4px;
}

.mbox-detail-head h3 {
  margin: 0 0 4px;
  font-size: 1.15rem;
}

.mbox-actions-block {
  margin-bottom: 1.1rem;
}

.mbox-actions-block h4,
.mbox-thread h4 {
  margin: 0 0 8px;
  font-size: 0.88rem;
}

.mbox-action-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.mbox-action {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--border, #e6eaf0);
  border-radius: 10px;
  background: #fafbfc;
}

.mbox-action[data-status="pending"] {
  border-color: color-mix(in srgb, #b45309 35%, var(--border, #e6eaf0));
  background: color-mix(in srgb, #b45309 6%, #fff);
}

.mbox-action[data-status="done"] {
  opacity: 0.85;
  border-color: color-mix(in srgb, #047857 30%, var(--border, #e6eaf0));
}

.mbox-action strong {
  display: block;
  font-size: 0.9rem;
}

.mbox-inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.mbox-inline-form input,
.mbox-inline-form select {
  flex: 1 1 160px;
  min-height: 36px;
  padding: 6px 10px;
  border: 1px solid var(--border, #e6eaf0);
  border-radius: 8px;
  font: inherit;
}

.mbox-messages {
  display: grid;
  gap: 10px;
  max-height: 40vh;
  overflow: auto;
  padding-right: 4px;
  margin-bottom: 12px;
}

.mbox-msg {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border, #e6eaf0);
  background: #fff;
}

.mbox-msg[data-author="auditor"] {
  border-left: 3px solid #1d4ed8;
}

.mbox-msg[data-author="client"] {
  border-left: 3px solid #0f766e;
}

.mbox-msg[data-author="system"] {
  border-left: 3px solid #94a3b8;
  background: #f8fafc;
  font-size: 0.9rem;
}

.mbox-msg[data-vis="internal"] {
  background: #fffbeb;
  border-color: #f59e0b;
}

.mbox-msg header {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: baseline;
  margin-bottom: 4px;
  font-size: 0.78rem;
  color: var(--text-muted, #6b778c);
}

.mbox-msg header strong {
  color: var(--text, #0f172a);
  font-size: 0.85rem;
}

.mbox-msg p {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.45;
}

.mbox-reply {
  display: grid;
  gap: 8px;
}

.mbox-reply textarea {
  width: 100%;
  min-height: 72px;
  padding: 10px 12px;
  border: 1px solid var(--border, #e6eaf0);
  border-radius: 10px;
  font: inherit;
  resize: vertical;
}

.mbox-internal-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-muted, #6b778c);
}

.mbox-composer {
  border: 1px solid var(--border, #e6eaf0);
  border-radius: 12px;
  background: var(--surface, #fff);
  padding: 14px 16px;
  margin-bottom: 0.5rem;
}

.mbox-composer h3 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.mbox-compose-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 10px;
}

.mbox-compose-grid label {
  display: grid;
  gap: 4px;
  font-size: 0.82rem;
  color: var(--text-muted, #6b778c);
}

.mbox-compose-grid input,
.mbox-compose-grid select,
.mbox-compose-grid textarea,
.mbox-compose-full input,
.mbox-compose-full textarea,
.mbox-compose-full select {
  padding: 8px 10px;
  border: 1px solid var(--border, #e6eaf0);
  border-radius: 8px;
  font: inherit;
  color: inherit;
}

.mbox-compose-full {
  display: grid;
  gap: 8px;
  margin-bottom: 10px;
}

.mbox-compose-full label {
  display: grid;
  gap: 4px;
  font-size: 0.82rem;
  color: var(--text-muted, #6b778c);
}

.mbox-draft-actions {
  list-style: none;
  margin: 0 0 8px;
  padding: 0;
  display: grid;
  gap: 4px;
}

.mbox-draft-actions li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 8px;
  background: #f8fafc;
  font-size: 0.85rem;
}

.mbox-empty {
  padding: 24px 12px;
  text-align: center;
}

/* Documentos ingresados por el buzón. Comparte la métrica del bloque de acciones
   porque en el detalle van uno debajo del otro y deben leerse como una misma columna. */
.mbox-docs-block {
  margin-bottom: 1.1rem;
}

.mbox-docs-block h4 {
  margin: 0 0 8px;
  font-size: 0.88rem;
}

.mbox-doc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.mbox-doc {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--border, #e6eaf0);
  border-radius: 10px;
  background: #fafbfc;
}

.mbox-doc strong {
  display: block;
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.mbox-doc-linked {
  color: #047857;
  font-weight: 600;
}

.mbox-docs-block .mbox-inline-form input[type="file"] {
  flex: 1 1 220px;
  padding: 5px 8px;
}

@media (max-width: 960px) {
  .mbox-layout {
    grid-template-columns: 1fr;
  }
  .mbox-kpis {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .mbox-compose-grid {
    grid-template-columns: 1fr;
  }
  .mbox-list {
    max-height: 280px;
  }
}