:root {
  --bg: #0e1116;
  --fg: #e6e6e6;
  --muted: #9aa4ad;
  --accent: #7aa2f7;
  --accent-hover: #5d86d6;
  --card: #161b22;
  --card-hover: #1c232c;
  --border: #2a313a;
  --green: #4cd964;
  --yellow: #f0a020;
  --red: #ff6b6b;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
}

#app {
  min-height: 100vh;
}

h1 {
  margin: 0 0 0.25rem 0;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
}

h2 {
  margin: 0 0 0.5rem 0;
  font-size: 1rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 0.85rem;
}

.error {
  color: var(--red);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

code {
  background: #0b0e13;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  color: var(--accent);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85em;
}

pre {
  background: #0b0e13;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.8rem;
  overflow-x: auto;
  font-size: 0.8rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  margin: 0.5rem 0 0 0;
}

/* ─── Login screen ──────────────────────────────────────────────────── */
#login-screen {
  text-align: center;
  padding: 6rem 1rem;
  max-width: 480px;
  margin: 0 auto;
}

#login-screen h1 {
  font-size: 2.4rem;
  margin-bottom: 0.5rem;
}

#login-screen .subtitle {
  margin-bottom: 2rem;
}

/* ─── App layout ────────────────────────────────────────────────────── */
.layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  height: 100vh;
}

.sidebar {
  background: #0a0d12;
  border-right: 1px solid var(--border);
  padding: 1.25rem 1rem;
  /* overflow:hidden (no auto) → el scroll lo gestiona el hijo flexible
     (.conversation-list). Sin esto, el sidebar entero scrollea y la lista de
     Conversaciones no tiene un alto propio que repartir. */
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.sidebar-title {
  margin-top: 0;
}

.sidebar-hint {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 1rem 0;
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

/* Header de Cuentas: título + botón "+" para abrir el modal de conexión. */
.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.sidebar-head .sidebar-title {
  margin: 0;
}

/* Botón circular "+" / "×" (abrir/cerrar modal). */
.icon-btn {
  flex: none;
  width: 1.7rem;
  height: 1.7rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color 120ms, border-color 120ms;
}
.icon-btn:hover {
  border-color: var(--accent);
  background: var(--card-hover);
  color: var(--accent);
}

.provider-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

/* Cuentas conectadas — fila compacta: logo + nombre (+ counts). */
.provider-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.55rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 0.85rem;
}

.provider-item.is-connected {
  border-color: rgba(76, 217, 100, 0.3);
}

.provider-logo {
  flex: none;
  width: 1.25rem;
  height: 1.25rem;
  object-fit: contain;
}

.provider-item-meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.25;
}

.provider-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.provider-counts {
  font-size: 0.7rem;
}

/* Empty-state: sin cuentas conectadas → invitar a conectar la primera. */
.provider-empty {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.85rem 0.75rem;
  border: 1px dashed var(--border);
  border-radius: 8px;
  background: var(--card);
}
.provider-empty-text {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* ─── Connect modal (grid de plataformas con logos) ─────────────────────── */
.connect-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.connect-modal[hidden] {
  display: none;
}
.connect-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(2px);
}
.connect-card {
  position: relative;
  z-index: 1;
  width: min(640px, 100%);
  max-height: 85vh;
  overflow-y: auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.35rem 1.5rem 1.35rem;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
}
.connect-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.connect-card-head .sidebar-title {
  margin: 0;
}
.connect-card-hint {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0.4rem 0 1.1rem 0;
}
.connect-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.7rem;
}
.connect-tile {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #0b0e13;
}
.connect-tile.is-connected {
  border-color: rgba(76, 217, 100, 0.35);
}
.connect-tile-top {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
}
.connect-tile .provider-logo {
  width: 1.6rem;
  height: 1.6rem;
}
.connect-tile-name {
  flex: 1;
  min-width: 0;
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.connect-tile-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.connect-status {
  font-size: 0.74rem;
  white-space: nowrap;
}
.connect-status.connected {
  color: var(--green);
}
.connect-tile-action {
  flex: none;
}

/* ─── Chat panel ────────────────────────────────────────────────────── */
.chat {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.chat-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.transcript {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.msg {
  max-width: 80%;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
}

.msg-user {
  align-self: flex-end;
  background: rgba(122, 162, 247, 0.12);
  border-color: rgba(122, 162, 247, 0.35);
}

.msg-assistant {
  align-self: flex-start;
}

.msg-text {
  line-height: 1.5;
  font-size: 0.95rem;
  word-wrap: break-word;
}

/* ── Markdown rendering inside .msg-text (marked + DOMPurify output) ── */
.msg-text > *:first-child {
  margin-top: 0;
}
.msg-text > *:last-child {
  margin-bottom: 0;
}
.msg-text p {
  margin: 0.4rem 0;
}
.msg-text h1,
.msg-text h2,
.msg-text h3,
.msg-text h4,
.msg-text h5,
.msg-text h6 {
  margin: 0.8rem 0 0.4rem 0;
  line-height: 1.25;
  text-transform: none;
  color: var(--fg);
}
.msg-text h1 { font-size: 1.25rem; }
.msg-text h2 { font-size: 1.1rem; }
.msg-text h3 { font-size: 1rem; font-weight: 600; }
.msg-text h4,
.msg-text h5,
.msg-text h6 { font-size: 0.95rem; font-weight: 600; }
.msg-text ul,
.msg-text ol {
  margin: 0.4rem 0;
  padding-left: 1.5rem;
}
.msg-text li {
  margin: 0.15rem 0;
}
.msg-text li > p {
  margin: 0.15rem 0;
}
.msg-text a {
  color: var(--accent);
  text-decoration: underline;
}
.msg-text a:hover {
  color: var(--accent-hover);
}
.msg-text blockquote {
  margin: 0.5rem 0;
  padding: 0.1rem 0.8rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}
.msg-text pre {
  margin: 0.5rem 0;
}
.msg-text pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: var(--fg);
  font-size: 0.85em;
}
.msg-text hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0.8rem 0;
}
.msg-text table {
  border-collapse: collapse;
  margin: 0.6rem 0;
  font-size: 0.85rem;
  width: auto;
  max-width: 100%;
  display: block;
  overflow-x: auto;
}
.msg-text table thead {
  background: rgba(122, 162, 247, 0.12);
}
.msg-text table th,
.msg-text table td {
  border: 1px solid var(--border);
  padding: 0.35rem 0.6rem;
  text-align: left;
  vertical-align: top;
}
.msg-text table th {
  font-weight: 600;
  color: var(--fg);
}
.msg-text table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}
/* Fase 5: filas 11+ ocultas (siguen en el DOM para el export) + fila-nota. */
.msg-text table tbody tr.table-row-hidden {
  display: none;
}
.msg-text table tbody tr.table-more-row td {
  color: var(--muted);
  font-style: italic;
  font-size: 0.8rem;
  text-align: center;
  background: transparent;
}

.msg-chart {
  position: relative;
  margin: 0.7rem 0 0.4rem 0;
  padding: 0.9rem 1rem 0.7rem 1rem;
  background: #0b0e13;
  border: 1px solid var(--border);
  border-radius: 10px;
  max-width: 100%;
  min-height: 240px;
  height: 280px;
  /* El bubble (.msg) es flex column; sin flex-shrink:0 el canvas se aplasta a
     medida que se añaden más mensajes/bloques. La altura ya está fijada arriba;
     esto solo evita que el flexbox lo encoja por debajo de ella. */
  flex-shrink: 0;
}

.msg-chart canvas {
  max-width: 100%;
}

/* ─── Sheets export result (drive.sheet@1) ─────────────────────────── */
.msg-sheet-link {
  margin: 0.7rem 0 0.2rem 0;
}
.sheet-link-cta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.75rem 1rem;
  background: linear-gradient(135deg, rgba(76, 217, 100, 0.12), rgba(122, 162, 247, 0.08));
  border: 1px solid rgba(76, 217, 100, 0.35);
  border-radius: 10px;
  color: var(--fg);
  text-decoration: none;
  transition: background 150ms, border-color 150ms, transform 80ms;
}
.sheet-link-cta:hover {
  background: linear-gradient(135deg, rgba(76, 217, 100, 0.18), rgba(122, 162, 247, 0.12));
  border-color: rgba(76, 217, 100, 0.6);
  transform: translateY(-1px);
}
.sheet-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}
.sheet-link-text {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}
.sheet-link-text strong {
  font-size: 0.95rem;
  color: var(--fg);
}
.sheet-link-meta {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 0.15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sheet-arrow {
  color: var(--green);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.tool-use,
.tool-result {
  margin-top: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #0b0e13;
}

.tool-use summary,
.tool-result summary {
  cursor: pointer;
  padding: 0.4rem 0.6rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.tool-result.is-error summary {
  color: var(--red);
}

.tool-use pre,
.tool-result pre {
  margin: 0;
  border: none;
  border-top: 1px solid var(--border);
  border-radius: 0 0 6px 6px;
}

/* Skill activation card (Plan 2): visual distinto del tool_use genérico —
   accent color en el borde para que destaque como "evento de configuración"
   y no como una llamada normal a tool. Nested .skill-body es el cuerpo
   markdown colapsado por defecto. */
.tool-use--skill {
  border-color: var(--accent, #6aa9ff);
  background: #0a1422;
}
.tool-use--skill > summary {
  color: var(--accent, #6aa9ff);
  font-weight: 500;
}
.tool-use--skill .skill-body {
  margin: 0;
  border-top: 1px solid var(--border);
  background: #0b0e13;
}
.tool-use--skill .skill-body > summary {
  padding: 0.3rem 0.6rem;
  font-size: 0.75rem;
  color: var(--muted);
}
.tool-use--skill .skill-body-pre {
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 320px;
  overflow-y: auto;
  font-size: 0.78rem;
}

/* ─── Chat form ─────────────────────────────────────────────────────── */
.chat-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.6rem;
  padding: 0.8rem 1.5rem 1.2rem 1.5rem;
  border-top: 1px solid var(--border);
}

.chat-form textarea {
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.7rem 0.9rem;
  font: inherit;
  font-size: 0.95rem;
  resize: vertical;
  min-height: 2.4rem;
}

.chat-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

/* ─── Buttons ───────────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 120ms, border-color 120ms;
  font-family: inherit;
}

.btn.small {
  padding: 0.3rem 0.6rem;
  font-size: 0.78rem;
}

.btn:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--card-hover);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0b0e13;
  font-weight: 600;
}

.btn.primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

/* ─── Conversaciones (Fase 4) ─────────────────────────────────────────── */
.sidebar-title-section {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
#btn-new-conversation {
  width: 100%;
  margin: 0.5rem 0 0.75rem 0;
}
.conversation-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  /* Ocupa el espacio restante del sidebar y scrollea dentro de él. El
     min-height:0 es OBLIGATORIO: sin él, un hijo flex en columna no encoge por
     debajo de su contenido y el overflow-y nunca se activa (el footer se
     descolgaría fuera de la vista en ventanas pequeñas). */
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}
.conversation-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  padding: 0.4rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.84rem;
  color: var(--text);
  border: 1px solid transparent;
}
.conversation-item:hover {
  background: var(--card-hover);
}
.conversation-item.is-active {
  background: var(--card-hover);
  border-color: var(--accent);
}
.conversation-item .conv-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.conversation-item .conv-delete {
  background: none;
  border: none;
  color: var(--text-muted, #888);
  font-size: 0.9rem;
  cursor: pointer;
  padding: 0 0.3rem;
}
.conversation-item .conv-delete:hover {
  color: #ff6b6b;
}
#active-conversation-label {
  margin-left: 0.75rem;
}

/* ── HITL approval card (Fase 6) ──────────────────────────────────── */
/* Approval card — compact one-row layout con resumen humano arriba,
   meta secundaria debajo, JSON crudo en <details> cerrado (abierto cuando
   severidad=unknown). Paleta toma --yellow/--green/--red del root. */
.approval-card {
  border: 1px solid var(--yellow);
  background: rgba(240, 160, 32, 0.05);
  border-radius: 6px;
  padding: 0.55rem 0.75rem;
  margin: 0.6rem 0;
}
.approval-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.approval-title {
  flex: 1;
  min-width: 0;
  font-weight: 600;
  font-size: 0.92rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.approval-title[data-sev="destructive"] {
  color: var(--red);
}
.approval-title[data-sev="unknown"] {
  color: var(--muted);
  font-style: italic;
}
.approval-actions {
  flex: none;
  display: inline-flex;
  gap: 0.4rem;
}
.approval-btn {
  padding: 0.3rem 0.7rem;
  border-radius: 4px;
  background: transparent;
  color: var(--fg);
  font-weight: 500;
  font-size: 0.85rem;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: background 150ms, border-color 150ms;
}
.approval-btn.approve {
  border-color: var(--green);
  color: var(--green);
}
.approval-btn.approve:hover:not(:disabled) {
  background: rgba(76, 217, 100, 0.12);
}
.approval-btn.reject {
  border-color: var(--red);
  color: var(--red);
}
.approval-btn.reject:hover:not(:disabled) {
  background: rgba(255, 107, 107, 0.10);
}
.approval-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.approval-meta {
  margin-top: 0.3rem;
  font-size: 0.82rem;
  color: var(--muted);
}
.approval-meta strong {
  color: var(--fg);
  font-weight: 600;
}
.approval-details {
  margin-top: 0.35rem;
  font-size: 0.82rem;
}
.approval-details summary {
  cursor: pointer;
  color: var(--muted);
  user-select: none;
  padding: 0.1rem 0;
}
.approval-details summary:hover {
  color: var(--accent);
}
.approval-details pre {
  background: rgba(0, 0, 0, 0.25);
  padding: 0.5rem 0.6rem;
  border-radius: 4px;
  font-size: 0.78rem;
  margin: 0.3rem 0 0 0;
  overflow-x: auto;
}

/* Approval badge — coherente con la approval-card. Mismo padding/radius/font
   que la card; cambia color por decisión final. Aparece via live SSE
   (replaceApprovalCardWithBadge) o F5 rehydration (appendRehydratedApprovalBadge). */
.approval-badge {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  font-size: 0.85rem;
  margin: 0.4rem 0;
  border: 1px solid transparent;
}
.approval-badge-approved {
  background: rgba(76, 217, 100, 0.10);
  border-color: var(--green);
  color: var(--green);
}
.approval-badge-rejected {
  background: rgba(255, 107, 107, 0.08);
  border-color: var(--red);
  color: var(--red);
}
.approval-badge-timeout,
.approval-badge-client_disconnected,
.approval-badge-expired {
  background: rgba(154, 164, 173, 0.10);
  border-color: var(--muted);
  color: var(--muted);
}
.approval-comment {
  font-style: italic;
  opacity: 0.85;
}
.approval-when {
  font-size: 0.78rem;
  opacity: 0.7;
  margin-left: 0.3rem;
}

/* ── CTA opt-in: exportar a Sheets bajo tablas/charts ──────────────────
 * Estilo ghost neutro: transparente con borde sutil. NO ámbar (ámbar es
 * lenguaje de "approval pendiente" en HITL y crearía conflicto visual).
 * Hover/focus pasa a azul --accent para señalizar interacción.
 */
.export-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.6rem;
  padding: 0.35rem 0.7rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted, #aaa);
  border-radius: 4px;
  font-size: 0.83rem;
  cursor: pointer;
  transition: border-color 0.1s, color 0.1s;
}
.export-cta:hover:not(:disabled),
.export-cta:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}
.export-cta:disabled {
  opacity: 0.7;
  cursor: wait;
}
/* Variante de error (reconectar Drive / fallo genérico). */
.export-cta-error,
.export-cta-error:hover {
  border-color: #cf222e;
  color: #cf222e;
}
.export-cta-error:focus-visible {
  border-color: #ff6b6b;
  color: #ff6b6b;
}

/* ────────────────────────────────────────────────────────────────────────
   UX-P0: Loading & thinking states (2026-06-02)
   ──────────────────────────────────────────────────────────────────────── */

/* UX1: indicador "Pensando…" mientras se espera el primer signal del LLM.
   Dots con animación staggered + pulse general en el contenedor. */
.thinking-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.88rem;
  font-style: italic;
  animation: thinking-pulse 1.2s ease-in-out infinite;
  padding: 0.3rem 0;
}
.thinking-indicator .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: currentColor;
  animation: thinking-dot 1.4s ease-in-out infinite;
}
.thinking-indicator .dot:nth-child(2) {
  animation-delay: 0.2s;
}
.thinking-indicator .dot:nth-child(3) {
  animation-delay: 0.4s;
}
@keyframes thinking-pulse {
  0%,
  100% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
}
@keyframes thinking-dot {
  0%,
  60%,
  100% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  30% {
    transform: scale(1.4);
    opacity: 1;
  }
}

/* UX2: cursor parpadeante al final del último delta durante streaming. */
.streaming-cursor {
  display: inline-block;
  margin-left: 0.05rem;
  color: var(--fg);
  animation: cursor-blink 1s steps(1) infinite;
  font-weight: normal;
  user-select: none;
}
@keyframes cursor-blink {
  0%,
  50% {
    opacity: 1;
  }
  50.01%,
  100% {
    opacity: 0;
  }
}

/* UX3: timer ⏳ Xs hasta tool_result. Color muted mientras corre, verde al
   éxito, rojo al error. Sin background, sin border — minimal junto al nombre
   de la tool en el <summary>. */
.tool-elapsed {
  display: inline-block;
  margin-left: 0.4rem;
  font-size: 0.78rem;
  color: var(--muted);
  font-family: var(--mono, monospace);
  transition: color 200ms;
}
.tool-elapsed[data-state="done"] {
  color: var(--green, #4ec27a);
}
.tool-elapsed[data-state="error"] {
  color: var(--red, #e07070);
}
.tool-elapsed:not([data-state]) .elapsed-value {
  /* Mientras el timer corre, pulse discreto para indicar "vivo". */
  animation: thinking-pulse 1.2s ease-in-out infinite;
}

/* Accesibilidad / batería: si el OS pide reducir motion, suprimimos todas las
   animaciones del sprint UX-P0. Los elementos siguen presentes
   (semánticamente informativos) — solo dejan de animarse. */
@media (prefers-reduced-motion: reduce) {
  .thinking-indicator,
  .thinking-indicator .dot,
  .streaming-cursor,
  .tool-elapsed:not([data-state]) .elapsed-value {
    animation: none;
  }
  .streaming-cursor {
    opacity: 0.5;
  }
}

/* ────────────────────────────────────────────────────────────────────────
   UX-P1: Skeleton F5 + Approval fade (2026-06-02)
   ──────────────────────────────────────────────────────────────────────── */

/* Skeleton bubbles durante la carga del history (selectConversation → fetch).
   Shimmer = gradient lineal que se desplaza horizontalmente con keyframes.
   Las dos .skel-line dan sensación de bubble con varias líneas de texto. */
.msg-skeleton {
  pointer-events: none;
}
.msg-skeleton .skel-line {
  height: 0.8rem;
  margin: 0.35rem 0;
  border-radius: 4px;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.04) 0%,
    rgba(255, 255, 255, 0.12) 50%,
    rgba(255, 255, 255, 0.04) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s ease-in-out infinite;
}
@keyframes skeleton-shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Approval card → badge: fade out 200ms en el card, fade in en el badge.
   Coincide con el setTimeout(200) de replaceApprovalCardWithBadge. */
.approval-card.fading-out {
  opacity: 0;
  transition: opacity 200ms ease-out;
  pointer-events: none;
}
.approval-badge.fading-in {
  animation: approval-badge-fade-in 200ms ease-out;
}
@keyframes approval-badge-fade-in {
  from {
    opacity: 0;
    transform: translateY(-2px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Reduced motion: skeletons sin shimmer (gradient estático) y fade
   instantáneo. Los elementos siguen visibles. */
@media (prefers-reduced-motion: reduce) {
  .msg-skeleton .skel-line {
    animation: none;
    background: rgba(255, 255, 255, 0.08);
  }
  .approval-card.fading-out {
    transition: none;
    opacity: 0;
  }
  .approval-badge.fading-in {
    animation: none;
  }
}

/* Banner amber para catálogo incompleto (gateway caído / providers que no
   respondieron al list_tools). `:not([hidden])` para que el attr HTML
   `hidden` se respete frente al `display: flex`. */
.catalog-partial-banner:not([hidden]) {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.5rem 0.8rem;
  margin-bottom: 0.5rem;
  background: rgba(217, 160, 0, 0.08);
  border: 1px solid var(--yellow, #d9a000);
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--fg);
}
.catalog-partial-icon {
  font-size: 1rem;
  user-select: none;
  flex: none;
}
.catalog-partial-text {
  flex: 1;
  min-width: 0;
}
.catalog-partial-text strong {
  font-family: var(--mono, monospace);
  color: var(--yellow, #d9a000);
}

/* ────────────────────────────────────────────────────────────────────────
   Scrollbars integradas al tema dark (2026-06-15)
   El default del SO es claro y rompe la estética. Thin + thumb gris sutil.
   ──────────────────────────────────────────────────────────────────────── */

/* Firefox */
.transcript,
.sidebar,
.conversation-list,
.connect-card,
.connect-grid,
.msg-text table,
.skill-body-pre,
pre {
  scrollbar-width: thin;
  scrollbar-color: #2f3742 transparent;
}

/* WebKit (Chrome, Safari, Edge) */
.transcript::-webkit-scrollbar,
.sidebar::-webkit-scrollbar,
.conversation-list::-webkit-scrollbar,
.connect-card::-webkit-scrollbar,
.connect-grid::-webkit-scrollbar,
.msg-text table::-webkit-scrollbar,
.skill-body-pre::-webkit-scrollbar,
pre::-webkit-scrollbar {
  width: 9px;
  height: 9px;
}
.transcript::-webkit-scrollbar-track,
.sidebar::-webkit-scrollbar-track,
.conversation-list::-webkit-scrollbar-track,
.connect-card::-webkit-scrollbar-track,
.connect-grid::-webkit-scrollbar-track,
.msg-text table::-webkit-scrollbar-track,
.skill-body-pre::-webkit-scrollbar-track,
pre::-webkit-scrollbar-track {
  background: transparent;
}
.transcript::-webkit-scrollbar-thumb,
.sidebar::-webkit-scrollbar-thumb,
.conversation-list::-webkit-scrollbar-thumb,
.connect-card::-webkit-scrollbar-thumb,
.connect-grid::-webkit-scrollbar-thumb,
.msg-text table::-webkit-scrollbar-thumb,
.skill-body-pre::-webkit-scrollbar-thumb,
pre::-webkit-scrollbar-thumb {
  background: #2f3742;
  border-radius: 6px;
}
.transcript::-webkit-scrollbar-thumb:hover,
.sidebar::-webkit-scrollbar-thumb:hover,
.conversation-list::-webkit-scrollbar-thumb:hover,
.connect-card::-webkit-scrollbar-thumb:hover,
.connect-grid::-webkit-scrollbar-thumb:hover,
.msg-text table::-webkit-scrollbar-thumb:hover,
.skill-body-pre::-webkit-scrollbar-thumb:hover,
pre::-webkit-scrollbar-thumb:hover {
  background: #3c4554;
}
.transcript::-webkit-scrollbar-corner,
.connect-grid::-webkit-scrollbar-corner,
.msg-text table::-webkit-scrollbar-corner {
  background: transparent;
}

/* ────────────────────────────────────────────────────────────────────────
   Responsive — ventana pequeña en desktop (2026-06-15)
   No es layout de teléfono: solo evita que en ventanas estrechas el sidebar
   se coma el chat. Sidebar más angosto + paddings reducidos.
   ──────────────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 248px 1fr;
  }
  .sidebar {
    padding: 1rem 0.7rem;
  }
  .chat-header {
    padding: 0.8rem 1rem;
  }
  .transcript {
    padding: 0.8rem 1rem;
  }
  .chat-form {
    padding: 0.7rem 1rem 1rem 1rem;
  }
  .msg {
    max-width: 92%;
  }
  .connect-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}