/* ============================================================
   TECPORT RAG — Componentes (CSS plano, sin frameworks)
   Los colores, tipografías, radios, sombras y safe-areas viven
   en tokens.css (cargado antes): este archivo solo consume
   var(--token) y NO define colores en crudo, para que el theme
   sea portable tal cual a la app Android/iOS.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,500&family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,500;0,8..60,600;1,8..60,400&family=JetBrains+Mono:wght@400;500;600&display=swap');
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; padding: 0; }
body {
  font-family: var(--ui);
  background: var(--bg);
  background-image: var(--bg-grad);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden;
  /* Móvil: sin rebote del documento al hacer overscroll ni flash al tocar */
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}
::selection { background: rgba(31,111,199,.25); }

/* Táctil: elimina el retraso de doble-tap-zoom en todos los controles */
button, [role="button"], input, textarea, a { touch-action: manipulation; }

/* Accesibilidad: anillo de foco visible solo al navegar con teclado */
:focus-visible { outline: 2px solid var(--blue-bright); outline-offset: 2px; }

/* scrollbars */
*::-webkit-scrollbar { width: 11px; height: 11px; }
*::-webkit-scrollbar-thumb {
  background: var(--border-2);
  border-radius: 20px;
  border: 3px solid transparent;
  background-clip: padding-box;
}
*::-webkit-scrollbar-thumb:hover { background: var(--text-faint); background-clip: padding-box; }
*::-webkit-scrollbar-track { background: transparent; }

.theme-fade, .theme-fade * {
  transition: background-color .35s var(--ease), color .35s var(--ease),
              border-color .35s var(--ease), box-shadow .35s var(--ease);
}

/* keyframes */
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.6); opacity: .35; } }
@keyframes fadeup { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes stripe { to { background-position: 40px 0; } }
@keyframes blink { 0%,80%,100% { opacity: .25; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-3px); } }
@keyframes rowin { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* 100dvh sigue la altura visible REAL en móvil (barras del navegador /
   teclado en pantalla); 100vh queda como respaldo para motores antiguos. */
.app { display: flex; height: 100vh; height: 100dvh; overflow: hidden; }
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; background: var(--app); }

/* ============================ SIDEBAR ============================ */
.sb {
  width: 274px; flex: none; display: flex; flex-direction: column;
  background: linear-gradient(180deg, var(--sidebar) 0%, var(--sidebar-2) 100%);
  color: var(--sidebar-tx); padding: 16px 14px; gap: var(--sb-gap);
  transition: width .38s var(--ease), padding .38s var(--ease);
  overflow: hidden; border-right: 1px solid var(--sidebar-border);
}
.sb--collapsed { width: 80px; padding: 16px 12px; overflow: visible; /* deja salir los tooltips */ }
.sb__label { transition: opacity .2s var(--ease); white-space: nowrap; }
.sb--collapsed .sb__label { opacity: 0; pointer-events: none; width: 0; }

/* ---------- PRIMITIVA de icon-button ----------
   Misma área de impacto, radio y tamaño de glifo para TODO control del sidebar.
   La usan el toggle de colapso y (vía sus reglas .sb--collapsed) el logo,
   "Nueva conversación", "Documentos" y el avatar. */
.sb-iconbtn {
  flex: none; width: var(--sb-btn-size); height: var(--sb-btn-size);
  border-radius: var(--sb-btn-radius); border: 1px solid var(--sidebar-line);
  background: var(--sidebar-soft); color: var(--sidebar-tx);
  display: grid; place-items: center; cursor: pointer;
  transition: background .18s, border-color .18s, color .18s;
}
.sb-iconbtn svg { width: var(--sb-btn-icon); height: var(--sb-btn-icon); }
.sb-iconbtn:hover               { background: var(--sb-hover); }
.sb-iconbtn:active              { background: var(--sb-active); }
.sb-iconbtn.is-active,
.sb-iconbtn[aria-current="page"]{ background: var(--sb-active); border-color: var(--sidebar-border); }

/* Foco-visible homogéneo (anillo) para cualquier control enfocable del sidebar */
.sb :focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--sidebar), 0 0 0 4px var(--sb-focus);
}

/* ---------- regiones flexbox: grupo superior (.sb__nav crece) e inferior anclado ---------- */
.sb__top  { display: flex; align-items: center; gap: var(--sb-gap); min-height: var(--sb-btn-size); }
.sb__nav  { flex: 1; min-height: 0; display: flex; flex-direction: column; gap: var(--sb-gap); }
.sb__foot { display: flex; flex-direction: column; gap: 10px; }
.sb__divider { height: 1px; border: 0; margin: 0; background: var(--sb-divider); }

/* ---------- marca: branding NO interactivo (sin chrome de botón) ---------- */
.sb__brand { flex: 1; min-width: 0; display: flex; align-items: center; }
.sb__logo-plaque {
  display: inline-flex; background: var(--sidebar-plaque); border-radius: 12px; padding: 9px 13px;
  max-width: 100%;
}
.sb__logo-plaque img { height: 26px; display: block; width: auto; }
.sb__icon { width: var(--sb-btn-size); height: var(--sb-btn-size); border-radius: var(--sb-btn-radius); display: none; }
.sb--collapsed .sb__logo-plaque { display: none; }
.sb--collapsed .sb__icon { display: block; }
.sb--collapsed .sb__top { flex-direction: column; gap: var(--sb-gap); align-items: center; }
.sb--collapsed .sb__brand { flex: none; justify-content: center; }

.sb__new {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px; border: 1px solid rgba(255,255,255,.16); cursor: pointer;
  border-radius: var(--sb-btn-radius); color: #fff; font: 600 14px/1 var(--ui); letter-spacing: .2px;
  background: var(--sidebar-cta);
  box-shadow: 0 6px 18px rgba(8,24,56,.5), inset 0 1px 0 rgba(255,255,255,.18);
  transition: transform .15s, box-shadow .2s, border-color .2s, filter .2s;
}
.sb__new:hover { transform: translateY(-1px); filter: brightness(1.07); box-shadow: 0 10px 24px rgba(8,24,56,.6), inset 0 1px 0 rgba(255,255,255,.22); border-color: rgba(255,255,255,.28); }
/* Colapsado: cada control adopta la primitiva (cuadrado de --sb-btn-size,
   mismo radio, glifo de --sb-btn-icon) centrado en el mismo eje vertical. */
.sb--collapsed .sb__new { width: var(--sb-btn-size); height: var(--sb-btn-size); padding: 0; margin: 0 auto; justify-content: center; gap: 0; }

.sb__section {
  display: flex; align-items: center; gap: 7px; padding: 0 6px;
  font: 700 11px/1 var(--ui); letter-spacing: 1.4px; text-transform: uppercase; color: var(--sidebar-tx-dim);
}
.sb--collapsed .sb__section { justify-content: center; gap: 0; }

.sb__hist { flex: 1; display: flex; flex-direction: column; gap: 4px; overflow-y: auto; overflow-x: hidden; margin: 0 -4px; padding: 0 4px; }
.hist {
  position: relative; display: flex; align-items: stretch; gap: 9px; padding: 9px 28px 9px 10px; border-radius: 10px; cursor: pointer;
  border: 1px solid transparent; background: transparent; text-align: left; color: var(--sidebar-tx);
  transition: background .18s, border-color .18s;
}
.hist:hover { background: var(--sidebar-soft); }
.hist--active { background: var(--sidebar-active); border-color: var(--sidebar-line); }
.hist__bar { width: 3px; border-radius: 3px; background: var(--orange); flex: none; opacity: 0; transition: opacity .18s; }
.hist--active .hist__bar { opacity: 1; }
.hist__body { display: flex; flex-direction: column; gap: 3px; min-width: 0; flex: 1; }
.hist__title { font: 600 13px/1.3 var(--ui); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hist__time { font: 500 11px/1 var(--ui); color: var(--sidebar-tx-dim); }
.hist__del {
  position: absolute; top: 50%; right: 7px; transform: translateY(-50%);
  width: 22px; height: 22px; border: none; background: transparent; color: var(--sidebar-tx-dim);
  cursor: pointer; border-radius: 6px; font-size: 16px; line-height: 1; display: grid; place-items: center;
  opacity: 0; padding: 0; transition: opacity .15s, background .15s, color .15s;
}
.hist:hover .hist__del { opacity: 1; }
.hist__del:hover { background: rgba(237,125,34,.18); color: var(--orange-soft); }
/* Al colapsar ocultamos el historial completo (los títulos no caben);
   ya no se generan los puntos "·" que antes lo representaban. */
.sb--collapsed .sb__section,
.sb--collapsed .sb__hist { display: none; }

.sb__empty { padding: 16px 10px; text-align: center; color: var(--sidebar-tx-dim); font: 500 12px/1.5 var(--ui); }
.sb--collapsed .sb__empty { display: none; }

.sb__docs {
  display: flex; align-items: center; gap: 9px; padding: 11px 12px; cursor: pointer;
  border-radius: var(--sb-btn-radius); border: 1px solid var(--sidebar-line); background: var(--sidebar-soft);
  color: var(--sidebar-tx); font: 600 13px/1 var(--ui); text-align: left;
  transition: background .18s, border-color .18s, color .18s;
}
.sb__docs:hover  { background: var(--sb-hover); color: var(--sidebar-tx); }
.sb__docs:active { background: var(--sb-active); }
.sb__docs.is-active,
.sb__docs[aria-current="page"] { background: var(--sb-active); border-color: var(--sidebar-border); }
.sb__docs svg { flex: none; width: var(--sb-btn-icon); height: var(--sb-btn-icon); }
.sb__docs-count {
  margin-left: auto; flex: none; min-width: 22px; padding: 3px 7px; border-radius: 999px; text-align: center;
  font: 700 11px/1.2 var(--ui); color: #fff; background: rgba(237,125,34,.85);
}
.sb--collapsed .sb__docs { width: var(--sb-btn-size); height: var(--sb-btn-size); padding: 0; margin: 0 auto; justify-content: center; gap: 0; }
/* El badge de contador lleva margin-left:auto; aunque .sb__label lo deja a
   ancho 0, ese margen automático seguiría absorbiendo el hueco y descentraría
   el glifo. Lo sacamos del flujo flex para que justify-content:center mande. */
.sb--collapsed .sb__docs-count { display: none; }

.sb__user {
  display: flex; align-items: center; gap: 10px; padding: 10px; border-radius: 12px;
  background: var(--sidebar-card); border: 1px solid var(--sidebar-line);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.05);
}
.sb--collapsed .sb__user { width: var(--sb-btn-size); padding: 4px 0; margin: 0 auto; justify-content: center; gap: 0; border-color: transparent; background: transparent; box-shadow: none; }
.sb__avatar {
  width: var(--sb-btn-size); height: var(--sb-btn-size); flex: none; border-radius: var(--sb-btn-radius); display: grid; place-items: center;
  font: 700 13px/1 var(--ui); color: var(--user-tx); background: var(--sb-avatar-bg);
  box-shadow: inset 0 0 0 1px var(--sidebar-line);
}
.sb__userinfo { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.sb__userinfo strong { font: 700 13px/1.2 var(--ui); color: var(--sidebar-tx); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sb__userinfo em { font: 500 11px/1.3 var(--ui); font-style: normal; color: var(--sidebar-tx-dim); }
.sb__gear { background: none; border: none; color: var(--sidebar-tx-dim); cursor: pointer; padding: 4px; border-radius: 7px; flex: none; transition: background .18s, color .18s; }
.sb__gear:hover  { color: var(--sidebar-tx); background: var(--sb-hover); }
.sb__gear:active { background: var(--sb-active); }

/* ---------- tooltips en modo colapsado (las etiquetas de texto están ocultas) ---------- */
.sb-tip { position: relative; }
.sb--collapsed .sb-tip::after {
  content: attr(data-tip);
  position: absolute; left: calc(100% + 12px); top: 50%; transform: translateY(-50%) scale(.96);
  transform-origin: left center;
  background: var(--sb-tip-bg); color: var(--sb-tip-tx);
  padding: 6px 10px; border-radius: 8px; font: 600 12px/1 var(--ui); white-space: nowrap;
  box-shadow: var(--shadow-md); opacity: 0; pointer-events: none;
  transition: opacity .14s var(--ease), transform .14s var(--ease); z-index: 80;
}
.sb--collapsed .sb-tip:hover::after,
.sb--collapsed .sb-tip:focus-visible::after { opacity: 1; transform: translateY(-50%) scale(1); }

/* ---------- ayuda contextual (regla: nada de párrafos largos en los modales) ----------
   Trigger discreto (icono "?"). El texto explicativo largo vive dentro de .tp-help__pop
   y sólo aparece flotando al pasar el mouse o enfocar con teclado. Reutilizable en
   cualquier modal/encabezado: <span class="tp-help" tabindex="0">?<span class="tp-help__pop">…</span></span> */
.tp-help { position: relative; display: inline-flex; align-items: center; justify-content: center;
  width: 18px; height: 18px; border-radius: 50%; flex: none; cursor: help;
  border: 1px solid var(--border-2); background: var(--surface-2); color: var(--text-3);
  font: 700 11px/1 var(--ui); vertical-align: middle; outline: none; }
.tp-help:hover, .tp-help:focus-visible { color: var(--text); border-color: var(--sb-focus, var(--border)); }
.tp-help:focus-visible { box-shadow: 0 0 0 3px var(--sb-focus, rgba(31,111,199,.4)); }
.tp-help__pop {
  /* Por encima del overlay de diálogos (.tp-dlg-overlay = --z-float + 10): el "?" vive
     sobre todo dentro de modales y su popover no puede quedar debajo del cromado.
     Dentro de un diálogo, ui_dialog.js además lo reposiciona en fixed (anti-clipping). */
  position: absolute; top: calc(100% + 8px); left: 0; z-index: calc(var(--z-float) + 40);
  width: max-content; max-width: min(320px, 74vw);
  background: var(--surface); color: var(--text-2); text-align: left;
  border: 1px solid var(--border-2); border-radius: var(--r-md, 10px);
  padding: 9px 11px; font: 500 12px/1.5 var(--ui);
  box-shadow: var(--shadow-md); opacity: 0; pointer-events: none;
  transform: translateY(-3px) scale(.98); transform-origin: top left;
  transition: opacity .14s var(--ease), transform .14s var(--ease); }
.tp-help__pop b { color: var(--text); font-weight: 700; }
/* Triggers fuera de diálogos: los muestra el CSS con :hover/:focus (posición absolute).
   Los que están dentro de un diálogo llevan .tp-help--managed y los controla ui_dialog.js
   por JS (clase .is-open + position:fixed), evitando el salto de layout del modal. */
.tp-help:not(.tp-help--managed):hover .tp-help__pop,
.tp-help:not(.tp-help--managed):focus-visible .tp-help__pop,
.tp-help:not(.tp-help--managed):focus-within .tp-help__pop,
.tp-help__pop.is-open {
  opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
/* Si el icono está cerca del borde derecho, anclar el popover a la derecha */
.tp-help--right .tp-help__pop { left: auto; right: 0; transform-origin: top right; }

/* ============================ HEADER ============================ */
.hd {
  /* La cabecera absorbe el notch/status bar: crece con la safe-area superior */
  height: calc(66px + var(--safe-top)); flex: none; display: flex; align-items: center; gap: 18px;
  padding: var(--safe-top) calc(22px + var(--safe-right)) 0 calc(22px + var(--safe-left));
  background: var(--surface); border-bottom: 1px solid var(--border);
}
/* Botón hamburguesa: sólo visible en móvil (ver bloque responsive) */
.hd__menu {
  display: none; flex: none; width: 38px; height: 38px; border-radius: 10px;
  border: 1px solid var(--border-2); background: var(--surface-2); color: var(--text-2);
  place-items: center; cursor: pointer; transition: background .2s;
}
.hd__menu:hover { background: var(--surface-3); }

/* Capa oscura del cajón del sidebar en móvil (oculta por defecto) */
.sb-backdrop {
  position: fixed; inset: 0; z-index: 55; background: rgba(8,16,32,.5);
  opacity: 0; pointer-events: none; transition: opacity .3s var(--ease);
  -webkit-backdrop-filter: blur(1px); backdrop-filter: blur(1px);
}
.sb-backdrop.is-open { opacity: 1; pointer-events: auto; }

.hd__id { display: flex; align-items: center; gap: 11px; flex: none; }
.hd__dot { width: 11px; height: 11px; border-radius: 50%; background: var(--blue-bright); box-shadow: 0 0 0 4px rgba(61,139,224,.18); flex: none; }
.hd__dot.is-off { background: var(--danger); box-shadow: 0 0 0 4px var(--danger-bg-hov); }
.hd__titles { display: flex; flex-direction: column; gap: 2px; line-height: 1.15; white-space: nowrap; }
.hd__titles strong { font: 800 16px/1.1 var(--ui); color: var(--text); letter-spacing: -.2px; white-space: nowrap; }
.hd__titles em { font: 600 11.5px/1.1 var(--ui); font-style: normal; color: var(--text-3); white-space: nowrap; }

/* ── Estado unificado (zona izquierda): punto de conexión; hover/focus despliega
      el panel con "Conectado" + contadores de documentos y vectores. Los IDs
      #stat-docs/#stat-vectors son nodos VIVOS que updateStatus() refresca. ── */
.hd__status {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 999px; cursor: default; flex: none;
}
.hd__status:hover, .hd__status:focus-visible { background: var(--surface-2); }
.hd__status.stat--ok .hd__dot { background: var(--ok); box-shadow: 0 0 0 4px var(--ok-bg); }
.hd__status.stat--off .hd__dot { background: var(--danger); box-shadow: 0 0 0 4px var(--danger-bg-hov); }
.hd__status-panel {
  position: absolute; top: calc(100% + 10px); left: -6px; z-index: 70;
  display: none; flex-direction: column; gap: 8px; min-width: 195px;
  background: var(--surface); border: 1px solid var(--border-2); border-radius: 12px;
  box-shadow: var(--shadow-lg); padding: 12px 14px;
  font: 600 12.5px/1 var(--ui); color: var(--text-2); white-space: nowrap;
}
/* Puente invisible sobre el hueco entre el punto y el panel: el hover no se corta. */
.hd__status-panel::before { content: ""; position: absolute; top: -12px; left: 0; right: 0; height: 12px; }
.hd__status:hover .hd__status-panel,
.hd__status:focus-visible .hd__status-panel,
.hd__status:focus-within .hd__status-panel { display: flex; }
.hd__status-panel > b { font: 800 13px/1 var(--ui); }
.hd__status.stat--ok .hd__status-panel > b { color: var(--ok); }
.hd__status.stat--off .hd__status-panel > b { color: var(--danger); }
.hd__status-row { display: flex; align-items: center; gap: 7px; }
.hd__status-row b { color: var(--text); font-weight: 800; margin-left: auto; }
.hd__status-row svg { color: var(--text-3); flex: none; }

/* ── Navegación core (zona central): pestañas Troubleshooting / Documentos ── */
.hd__nav { flex: 1; display: flex; justify-content: center; gap: 10px; min-width: 0; }

.hd__actions { display: flex; align-items: center; gap: 12px; }

/* Botones del header HOMOGENEIZADOS: pestañas centrales, disparador del menú de
   gestión y Detener comparten box-model; el tinte es semántico vía tokens. */
.hd__tab, .hd-menu__btn, .hd__stop {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 15px; border-radius: 999px; cursor: pointer;
  font: 600 12.5px/1 var(--ui); border: 1px solid transparent; transition: background .2s, border-color .2s, color .2s;
}
.hd__tab svg, .hd-menu__btn svg, .hd__stop svg { flex: none; }
.hd__tab:disabled, .hd-menu__btn:disabled { cursor: default; opacity: .5; }

/* default → pestañas de navegación */
.hd__tab { color: var(--btn-tx); background: var(--btn-bg); border-color: var(--btn-bd); }
.hd__tab:hover:not(:disabled) { background: var(--btn-bg-hov); }

/* ── Dropdown "Gestión de índice" (zona derecha, solo developer) ── */
.hd-menu { position: relative; }
/* El gestor de opciones (kebab) sólo existe en móvil; en escritorio los botones van inline. */
.hd-menu--more { display: none; }
.hd-menu__btn { color: var(--btn-tx); background: var(--btn-bg); border-color: var(--btn-bd); }
.hd-menu__btn:hover { background: var(--btn-bg-hov); }
.hd-menu.is-open .hd-menu__btn { background: var(--btn-bg-hov); border-color: var(--border-2); }
.hd-menu__caret { transition: transform .2s var(--ease); }
.hd-menu.is-open .hd-menu__caret { transform: rotate(180deg); }
.hd-menu__panel {
  position: absolute; top: calc(100% + 8px); right: 0; z-index: 70;
  display: none; min-width: 236px; padding: 6px;
  background: var(--surface); border: 1px solid var(--border-2); border-radius: 12px;
  box-shadow: var(--shadow-lg);
}
.hd-menu.is-open .hd-menu__panel { display: block; }
.hd-menu__item {
  display: flex; width: 100%; align-items: center; gap: 9px; padding: 10px 11px; border-radius: 8px;
  font: 600 13px/1.2 var(--ui); color: var(--text-2); background: none; border: none;
  cursor: pointer; text-align: left; transition: background .15s, color .15s;
}
.hd-menu__item:hover:not(:disabled) { background: var(--surface-2); color: var(--text); }
.hd-menu__item:disabled { cursor: default; opacity: .55; }
.hd-menu__item svg { flex: none; }
/* Estado "ocupado" (Sincronizando…/Backfill…): mismo tinte azul que antes. */
.hd-menu__item.is-on { color: var(--link); background: rgba(31,111,199,.1); }
[data-theme="dark"] .hd-menu__item.is-on { color: var(--blue-bright); background: rgba(61,139,224,.14); }
/* Tintes semánticos: Reindexar (warn) y Vaciar índice (danger, destructivo). */
.hd-menu__item--warn { color: var(--btn-warn-tx); }
.hd-menu__item--warn:hover:not(:disabled) { background: var(--btn-warn-bg); color: var(--btn-warn-tx); }
.hd-menu__item--danger { color: var(--danger); }
.hd-menu__item--danger:hover:not(:disabled) { background: var(--danger-bg); color: var(--danger); }
.hd-menu__sep { height: 1px; background: var(--border); margin: 6px 4px; }

/* danger → Detener (con estados de parada suave/dura) */
.hd__stop { color: var(--danger); background: var(--danger-bg); border-color: var(--danger-bd); transition: background .2s, transform .15s; }
.hd__stop:hover { background: var(--danger-bg-hov); transform: translateY(-1px); }
.hd__stop.is-stopping {
  color: var(--text-3); background: var(--surface-2); border-color: var(--border);
  cursor: default; pointer-events: none;
}
/* Segunda etapa: hard stop ARMADO tras el primer clic (corte inmediato al volver a pulsar). */
.hd__stop.is-hard {
  color: #fff; background: var(--danger-solid); border-color: var(--danger-solid);
  animation: hardpulse 1.1s ease-in-out infinite;
}
.hd__stop.is-hard:hover { background: var(--danger-solid-hov); transform: translateY(-1px); }
@keyframes hardpulse { 0%,100% { box-shadow: 0 0 0 0 rgba(192,57,43,.45); } 50% { box-shadow: 0 0 0 5px rgba(192,57,43,0); } }

.hd__theme { border: none; background: none; cursor: pointer; padding: 0; }
.hd__theme-track {
  width: 52px; height: 28px; border-radius: 999px; background: var(--toggle-track); border: 1px solid var(--border-2);
  display: flex; align-items: center; padding: 3px; transition: background .3s, border-color .3s;
}
.hd__theme-knob {
  width: 22px; height: 22px; border-radius: 50%; background: var(--toggle-knob); color: var(--toggle-icon);
  display: grid; place-items: center; box-shadow: 0 2px 5px rgba(0,0,0,.25);
  transform: translateX(0); transition: transform .32s var(--ease), color .3s, background .3s;
}
[data-theme="dark"] .hd__theme-knob { transform: translateX(24px); }

/* ===== Botón de tema FLOTANTE global (theme.js) — visible en TODA sección ===== */
.tp-theme-fab {
  position: fixed;
  right: calc(16px + var(--safe-right));
  bottom: calc(16px + var(--safe-bottom));
  z-index: var(--z-float, 3000);
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center; cursor: pointer;
  background: var(--surface); color: var(--toggle-icon);
  border: 1px solid var(--border-2); box-shadow: var(--shadow-md);
  transition: background .25s, color .3s, border-color .3s, transform .15s var(--ease);
}
.tp-theme-fab:hover { background: var(--surface-2); transform: translateY(-1px); }
.tp-theme-fab:active { transform: translateY(0); }
.tp-theme-fab:focus-visible { outline: 2px solid var(--sb-focus); outline-offset: 2px; }
/* Cada sección con header propio ya trae su toggle de tema (chat #btn-theme,
   overlay TS #ts2-theme, y el cromado común de admin/aprendizaje/próximamente) →
   se oculta el FAB en esas vistas para no duplicar el botón de tema. En el chat,
   además, taparía el botón de enviar del composer. */
body.tp-agent .tp-theme-fab,
body[data-tp-view="troubleshooting"] .tp-theme-fab,
body[data-tp-view="admin"] .tp-theme-fab,
body[data-tp-view="learning"] .tp-theme-fab,
body[data-tp-view="soon"] .tp-theme-fab { display: none; }

/* ===== Cesta de cotización: FAB flotante (quote_cart.js) =====
   Apilado 12px SOBRE el FAB de tema (44px de alto) con las mismas safe-areas.
   Lo enciende el JS con .is-on (capacidad + vista partes o piezas pendientes);
   se oculta en las mismas vistas que el FAB de tema para no tapar composers. */
.tp-quote-fab {
  position: fixed;
  right: calc(16px + var(--safe-right));
  bottom: calc(16px + 44px + 12px + var(--safe-bottom));
  z-index: var(--z-float, 3000);
  width: 44px; height: 44px; border-radius: 50%;
  display: none; place-items: center; cursor: pointer;
  background: var(--navy); color: #fff;
  border: 1px solid var(--navy-700, var(--navy)); box-shadow: var(--shadow-md);
  transition: background .25s, transform .15s var(--ease);
}
.tp-quote-fab.is-on { display: grid; }
.tp-quote-fab:hover { background: var(--navy-700, var(--navy)); transform: translateY(-1px); }
.tp-quote-fab:active { transform: translateY(0); }
.tp-quote-fab:focus-visible { outline: 2px solid var(--sb-focus); outline-offset: 2px; }
body.tp-agent .tp-quote-fab,
body[data-tp-view="troubleshooting"] .tp-quote-fab,
body[data-tp-view="admin"] .tp-quote-fab,
body[data-tp-view="learning"] .tp-quote-fab,
body[data-tp-view="soon"] .tp-quote-fab { display: none; }
/* Excepción: en el chat (agente) el FAB SÍ aparece si hay ítems en la cesta, para poder
   abrirla tras agregar una pieza desde la ficha flotante. (Mayor especificidad que el hide.) */
body.tp-agent .tp-quote-fab.is-on { display: grid; }
.tp-quote-fab__badge {
  position: absolute; top: -4px; right: -4px; min-width: 18px; height: 18px;
  border-radius: 999px; padding: 0 4px; display: grid; place-items: center;
  background: var(--orange); color: #fff; font: 700 11px/1 var(--ui);
  border: 2px solid var(--bg); box-sizing: content-box;
}
@keyframes tpq-pulse { 0% { transform: scale(1); } 35% { transform: scale(1.14); } 100% { transform: scale(1); } }
.tp-quote-fab.is-pulse { animation: tpq-pulse .35s var(--ease); }

/* ===== Cesta de cotización: modal (.tp-dlg--quote) ===== */
.tp-dlg--quote { max-width: min(560px, calc(100vw - 24px)); }
.tpq { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.tpq-head { display: flex; align-items: center; gap: 8px; }
.tpq-head__lead { font: 600 12.5px/1.4 var(--ui); color: var(--text-2); flex: 1; }
.tpq-notice {
  padding: 9px 12px; border-radius: var(--r-sm);
  background: var(--warn-bg); color: var(--warn);
  border: 1px solid var(--warn-bd);
  font: 500 12.5px/1.5 var(--ui);
}
.tpq-list {
  display: flex; flex-direction: column; gap: 6px;
  max-height: min(44vh, 380px); overflow: auto; min-height: 0;
}
.tpq-empty { padding: 18px 10px; text-align: center; color: var(--text-3); font: 500 13px/1.5 var(--ui); }
.tpq-item {
  display: flex; align-items: center; gap: 10px; min-width: 0;
  padding: 8px 10px; border: 1px solid var(--border); border-radius: var(--r-sm);
  background: var(--surface-2);
}
.tpq-item__info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.tpq-item__pn { font: 600 12.5px/1.3 var(--mono); color: var(--text); word-break: break-all; }
.tpq-item__desc {
  font: 500 12px/1.35 var(--ui); color: var(--text-3);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.tpq-item__unit { font: 500 11.5px/1 var(--ui); color: var(--text-3); margin-left: 4px; }
.tpq-step { display: inline-flex; align-items: center; gap: 4px; flex: none; }
.tpq-step__btn {
  width: 26px; height: 26px; border-radius: var(--r-sm); cursor: pointer;
  border: 1px solid var(--border-2); background: var(--surface); color: var(--text-2);
  font: 700 14px/1 var(--ui); display: grid; place-items: center;
}
.tpq-step__btn:hover { background: var(--surface-3); color: var(--text); }
.tpq-step__val {
  width: 48px; height: 26px; text-align: center; border-radius: var(--r-sm);
  border: 1px solid var(--border-2); background: var(--surface); color: var(--text);
  font: 600 12.5px/1 var(--ui); -moz-appearance: textfield;
}
.tpq-step__val::-webkit-outer-spin-button, .tpq-step__val::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.tpq-item__rm {
  flex: none; width: 26px; height: 26px; border-radius: 50%; cursor: pointer;
  border: 1px solid transparent; background: transparent; color: var(--text-3);
  font: 400 16px/1 var(--ui); display: grid; place-items: center;
}
.tpq-item__rm:hover { color: var(--danger); border-color: var(--danger-bd); background: var(--danger-bg); }
.tpq-notes { resize: vertical; }
.tpq-foot {
  display: flex; align-items: center; justify-content: flex-end; gap: 12px;
  padding-top: 4px; border-top: 1px solid var(--hairline, var(--border));
}
.tpq-foot__status { flex: 1 1 auto; font: 600 12.5px/1.4 var(--ui); color: var(--text-2); }
/* «Vaciar cesta»: acción destructiva discreta, alineada a la izquierda del pie. */
.tpq-clear { color: #d6453d; border-color: transparent; background: transparent; }
.tpq-clear:hover:not(:disabled) { background: rgba(214, 69, 61, .1); }
.tpq-clear:disabled { opacity: .45; cursor: default; }

/* Agrupación por conglomerado de máquina (familia · modelo · versión · serial). */
.tpq-group { display: flex; flex-direction: column; gap: 6px; }
.tpq-group + .tpq-group { margin-top: 8px; }
.tpq-group__h {
  font: 700 11px/1.3 var(--ui); text-transform: uppercase; letter-spacing: .03em;
  color: var(--text-2); padding: 2px 2px 4px; border-bottom: 1px solid var(--hairline, var(--border));
}
/* Chip de contexto por línea (kit / posición en plano / serial de la pieza). */
.tpq-item__ctx { font: 600 10.5px/1.3 var(--ui); color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, transparent); border-radius: 999px;
  padding: 1px 7px; margin-top: 2px; align-self: flex-start; }
/* Serial de la MÁQUINA, destacado en el encabezado de grupo. */
.tpq-serial { display: inline-block; font: 700 10px/1.3 var(--mono, monospace);
  text-transform: none; letter-spacing: 0; color: var(--primary-tx, #fff);
  background: var(--primary); border-radius: 4px; padding: 1px 7px; margin-left: 6px;
  vertical-align: middle; }

/* Diálogo «¿Para qué máquina…?»: atribución de máquina al agregar a la cesta. */
.tpq-pick__sub { margin: 0 0 10px; font: 400 13px/1.45 var(--ui); color: var(--text-2); }
.tpq-pick__list { display: flex; flex-direction: column; gap: 8px; max-height: 46vh; overflow: auto; }
.tpq-mach { display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
  width: 100%; padding: 9px 12px; text-align: left; cursor: pointer;
  background: var(--surface-2, var(--surface)); color: var(--text);
  border: 1px solid var(--hairline, var(--border)); border-radius: 8px; }
.tpq-mach:hover { border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 7%, var(--surface)); }
.tpq-mach__label { font: 600 13px/1.35 var(--ui); }
.tpq-mach__alias { font: 400 12px/1.35 var(--ui); color: var(--text-2); }
.tpq-mach__tags { display: flex; align-items: center; gap: 6px; }
.tpq-mach__tags .tpq-serial { margin-left: 0; }
.tpq-mach__warn { font: 600 10.5px/1.3 var(--ui); color: var(--warn, #b45309);
  background: color-mix(in srgb, var(--warn, #b45309) 12%, transparent);
  border-radius: 999px; padding: 1px 7px; }

/* Línea de KIT: colapsable dentro de la cesta. */
.tpq-item--kit { display: block; padding: 0; overflow: hidden; }
.tpqk { width: 100%; }
.tpqk__sum { display: flex; align-items: center; gap: 8px; padding: 8px 10px; cursor: pointer;
  list-style: none; }
.tpqk__sum::-webkit-details-marker { display: none; }
.tpqk__badge { flex: none; font: 800 9.5px/1.4 var(--ui); letter-spacing: .05em; color: var(--primary-tx, #fff);
  background: var(--primary); border-radius: 4px; padding: 2px 6px; }
.tpqk__name { font: 700 12.5px/1.3 var(--ui); color: var(--text); flex: 1; min-width: 0; }
.tpqk__pn { font: 600 11px/1.2 var(--mono); color: var(--text-3); }
.tpqk__meta { font: 600 11.5px/1.3 var(--ui); color: var(--text-3); white-space: nowrap; }
.tpqk__body { padding: 4px 10px 10px; border-top: 1px solid var(--hairline, var(--border));
  display: flex; flex-direction: column; gap: 8px; }
.tpqk__ctl { display: flex; align-items: center; gap: 10px; font: 600 12px/1.3 var(--ui); color: var(--text-2); }
.tpqk__tbl { width: 100%; border-collapse: collapse; font: 500 12px/1.4 var(--ui); }
.tpqk__tbl td { padding: 4px 6px; border-bottom: 1px solid var(--hairline); vertical-align: top; }
.tpqk__tbl .tpqk-pn { font-family: var(--mono); color: var(--text); white-space: nowrap; }
.tpqk__tbl .tpqk-qty { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; color: var(--text-2); }

/* Filas de encabezado de grupo en la bandeja del receptor. */
.tpqi-table .tpqi-grouprow td { background: var(--surface-2); font: 700 11px/1.3 var(--ui);
  text-transform: uppercase; letter-spacing: .03em; color: var(--text-2); }

/* Móvil: objetivos táctiles ≥ --tap y filas a dos líneas si hace falta */
@media (max-width: 640px) {
  .tpq-item { flex-wrap: wrap; }
  .tpq-item__info { flex-basis: 100%; }
  .tpq-step__btn { width: var(--tap, 44px); height: 38px; }
  .tpq-step__val { height: 38px; width: 56px; }
  .tpq-item__rm { width: 38px; height: 38px; }
}

/* ===== Cotizaciones: campana del hub + bandeja (.tp-dlg--qinbox) ===== */
.hub-bell { position: relative; }
.hub-bell__badge {
  position: absolute; top: 2px; right: 2px; min-width: 16px; height: 16px;
  border-radius: 999px; padding: 0 4px; display: grid; place-items: center;
  background: var(--orange); color: #fff; font: 700 10px/1 var(--ui);
  border: 2px solid var(--bg); box-sizing: content-box; pointer-events: none;
}
.tp-dlg--qinbox { max-width: min(640px, calc(100vw - 24px)); }
.tpqi { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.tpqi-head { display: flex; align-items: center; gap: 8px; }
.tpqi-head__lead { flex: 1; }
.tpqi-body { min-height: 120px; }
.tpqi-list { display: flex; flex-direction: column; gap: 6px; max-height: min(52vh, 460px); overflow: auto; }
.tpqi-row {
  display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--r-sm);
  background: var(--surface-2); cursor: pointer; transition: background .12s, border-color .12s;
}
.tpqi-row:hover { background: var(--surface-3); border-color: var(--border-2); }
.tpqi-row__main { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.tpqi-row__title { font: 600 13px/1.35 var(--ui); color: var(--text); }
.tpqi-row.is-unread .tpqi-row__title { font-weight: 800; }
.tpqi-row.is-unread::before {
  content: ""; flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--orange);
}
.tpqi-row__meta { font: 500 12px/1.35 var(--ui); color: var(--text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tpqi-status {
  flex: none; padding: 3px 9px; border-radius: 999px; font: 700 11px/1.2 var(--ui);
  border: 1px solid var(--border-2); background: var(--surface); color: var(--text-2);
}
.tpqi-status.is-new  { background: var(--warn-bg); border-color: var(--warn-bd); color: var(--warn); }
.tpqi-status.is-done { background: var(--ok-bg); border-color: var(--ok-bd); color: var(--ok); }
.tpqi-detail { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.tpqi-detail__bar { display: flex; align-items: center; gap: 10px; }
.tpqi-detail__title { flex: 1; font: 700 13.5px/1.35 var(--ui); color: var(--text); min-width: 0; }
.tpqi-detail__meta { font: 500 12.5px/1.5 var(--ui); color: var(--text-2); }
.tpqi-detail__meta a { color: var(--link); }
.tpqi-detail__items { max-height: min(42vh, 360px); }
.tpqi-table { width: 100%; border-collapse: collapse; font: 500 12.5px/1.4 var(--ui); }
.tpqi-table th {
  position: sticky; top: 0; text-align: left; padding: 7px 10px; font: 700 11.5px/1.2 var(--ui);
  color: var(--text-3); background: var(--surface-2); border-bottom: 1px solid var(--border);
}
.tpqi-table td { padding: 7px 10px; border-bottom: 1px solid var(--hairline); color: var(--text); vertical-align: top; }
.tpqi-pn { font: 600 12px/1.3 var(--mono); word-break: break-all; }
.tpqi-num, .tpqi-table th.tpqi-num, .tpqi-table td.tpqi-num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.tpqi-detail__notes {
  padding: 9px 12px; border-radius: var(--r-sm); background: var(--surface-2);
  border: 1px solid var(--border); font: 500 12.5px/1.5 var(--ui); color: var(--text-2);
}

/* ============================ SYNC BAR ============================ */
.syncbar {
  flex: none; display: none; align-items: center; gap: 12px; padding: 9px 22px;
  background: var(--surface-2); border-bottom: 1px solid var(--border); font: 600 12px/1 var(--ui); color: var(--text-2);
  flex-wrap: wrap; row-gap: 7px;
}
.syncbar.is-active { display: flex; }
/* Sub-progreso del archivo actual (páginas → embeddings → Pinecone) */
.syncbar__sub { display: inline-flex; align-items: center; gap: 8px; }
.syncbar__stage { color: var(--text-2); font-weight: 700; white-space: nowrap; }
[data-theme="dark"] .syncbar__stage { color: var(--orange); }
.syncbar__subtrack { flex: none; width: 130px; height: 5px; border-radius: 999px; background: var(--surface-3); overflow: hidden; }
.syncbar__subfill {
  display: block; height: 100%; width: 0%; border-radius: 999px;
  background: linear-gradient(90deg, var(--orange) 0%, var(--orange-soft) 100%);
  transition: width .35s var(--ease);
}
.syncbar__tag { display: inline-flex; align-items: center; gap: 6px; color: var(--link); font-weight: 700; white-space: nowrap; }
[data-theme="dark"] .syncbar__tag { color: var(--blue-bright); }
.syncbar__track { flex: none; width: 220px; height: 7px; border-radius: 999px; background: var(--surface-3); overflow: hidden; }
.syncbar__fill {
  height: 100%; border-radius: 999px; position: relative; overflow: hidden; width: 0%;
  background: linear-gradient(90deg, var(--blue) 0%, var(--orange) 130%);
  transition: width .6s var(--ease);
}
.syncbar__stripes {
  position: absolute; inset: 0;
  background-image: linear-gradient(115deg, rgba(255,255,255,.35) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.35) 50%, rgba(255,255,255,.35) 75%, transparent 75%);
  background-size: 20px 20px; animation: stripe .7s linear infinite;
}
.syncbar__pct { font-weight: 800; color: var(--text); }
.syncbar__meta { color: var(--text-3); }
.syncbar__file {
  display: inline-flex; align-items: center; gap: 6px; color: var(--text-3); margin-left: auto;
  max-width: 360px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* ============================ THREAD ============================ */
.scroll { flex: 1; overflow-y: auto; overflow-x: hidden; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }
.thread {
  max-width: 1100px; margin: 0 auto; display: flex; flex-direction: column; gap: 24px;
  /* max() protege el contenido del notch lateral en apaisado */
  padding: 30px max(34px, var(--safe-right)) 44px max(34px, var(--safe-left));
  transition: max-width .4s var(--ease);
}
.thread:has(.row__main.is-reader) { max-width: min(1720px, calc(100vw - 150px)); }

.row { display: flex; gap: 13px; animation: rowin .35s var(--ease) both; }
.row--user { justify-content: flex-end; }
.row--ai { align-items: flex-start; }
.row__main { min-width: 0; display: flex; flex-direction: column; gap: 14px; max-width: 770px; }
.row__main.is-reader { max-width: 100%; flex: 1; }
/* TroubleShooting: contenedor horizontal propio, a pantalla casi completa e
   INDEPENDIENTE del lector. El bloque ocupa el ancho visible disponible con el
   mismo valor esté el lector abierto o cerrado, así abrir/cerrar "Abrir en lector"
   no cambia su ancho. Estas reglas vienen DESPUÉS de `.thread:has(.row__main.is-reader)`
   y `.row__main.is-reader`, así que ganan por orden de fuente en ambos estados.
   La vista ampliada de los pasos la decide el viewport (>820px), no el ancho del
   contenedor — ver `.ts-inchat` en troubleshooting.css. En móvil (≤820px) el calc()
   deja el bloque a ancho de pantalla y los pasos bajan a 1 columna. Las burbujas de
   texto siguen acotadas (`.bubble--ai` max-width 770px), no se estiran. */
.thread:has(.ts-inchat) { max-width: min(2040px, calc(100vw - 48px)); }
.row__main:has(.ts-inchat) { max-width: 100%; flex: 1; }

.ava { flex: none; width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; font: 800 12px/1 var(--ui); }
.ava--ai { overflow: hidden; box-shadow: 0 0 0 1px var(--border-2), var(--shadow-sm); background: var(--navy); }
.ava--ai img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ava--user { background: var(--surface-3); color: var(--text-2); border: 1px solid var(--border-2); }

.row__meta { display: flex; align-items: center; gap: 10px; padding-left: 2px; }
.row__name { font: 700 12.5px/1 var(--ui); color: var(--text-2); }
.row__flag {
  display: inline-flex; align-items: center; gap: 5px; font: 700 10.5px/1 var(--ui); letter-spacing: .3px;
  color: var(--orange); background: rgba(237,125,34,.12); border: 1px solid rgba(237,125,34,.28);
  padding: 4px 8px; border-radius: 999px; text-transform: uppercase;
}
.row__readbtn {
  margin-left: auto; display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  font: 700 11.5px/1 var(--ui); color: var(--link); background: var(--cite-bg);
  border: 1px solid rgba(31,111,199,.25); padding: 6px 11px; border-radius: 999px; transition: background .18s, transform .15s;
}
[data-theme="dark"] .row__readbtn { color: var(--blue-bright); border-color: rgba(61,139,224,.4); }
.row__readbtn:hover { background: var(--cite-hover); transform: translateY(-1px); }

/* burbujas */
.bubble { padding: 15px 19px 16px; border-radius: 16px; font-size: 15px; line-height: 1.66; }
.bubble--ai {
  background: var(--surface); color: var(--text); border: 1px solid var(--border);
  border-top-left-radius: 5px; box-shadow: var(--shadow-sm); max-width: 770px;
}
.bubble--user {
  background: var(--user-grad); color: var(--user-tx); border-top-right-radius: 5px;
  max-width: 560px; box-shadow: 0 6px 16px rgba(20,58,94,.28); font-weight: 500;
  white-space: pre-wrap; word-wrap: break-word;
}
.bubble--typing { display: inline-flex; gap: 5px; padding: 16px 18px; width: max-content; }
.bubble--typing span { width: 8px; height: 8px; border-radius: 50%; background: var(--text-3); animation: blink 1.2s infinite; }
.bubble--typing span:nth-child(2) { animation-delay: .18s; }
.bubble--typing span:nth-child(3) { animation-delay: .36s; }

/* ---------- indicador de etapas progresivas (barra horizontal) ---------- */
.bubble--progress { padding: 15px 18px 14px; width: min(340px, 78vw); max-width: 100%; }

/* fila de píldoras: una por etapa, se rellenan de izquierda a derecha */
.progress-bar { display: flex; gap: 6px; }
.pseg {
  flex: 1; height: 6px; border-radius: 999px;
  background: var(--border-2);
  transition: background-color .35s var(--ease), box-shadow .35s var(--ease);
}
.pseg.is-pending { background: var(--border-2); }
.pseg.is-done    { background: var(--blue); }
/* segmento activo: relleno azul con un brillo (shimmer) que recorre la píldora */
.pseg.is-active {
  background-image: linear-gradient(90deg, var(--navy) 0%, var(--blue-bright) 50%, var(--navy) 100%);
  background-size: 200% 100%;
  box-shadow: 0 0 0 1px rgba(61,139,224,.18);
  animation: pseg-shimmer 1.1s linear infinite;
}
@keyframes pseg-shimmer { to { background-position: -200% 0; } }

/* una sola línea de texto con la fase actual; recorta el desbordamiento para el swap */
.progress-phase {
  position: relative; overflow: hidden;
  height: 1.3em; margin-top: 11px;
}
.pphase-text {
  position: absolute; left: 0; top: 0; white-space: nowrap;
  color: var(--blue); font: 600 14px/1.3 var(--ui);
  transform: translateY(0); opacity: 1;
  transition: transform .42s var(--ease), opacity .42s var(--ease);
}
/* entrante: arranca abajo y sube a su sitio al quitar la clase */
.pphase-text.is-entering { transform: translateY(110%); opacity: 0; }
/* saliente: sube y se desvanece */
.pphase-text.is-leaving  { transform: translateY(-110%); opacity: 0; }

@keyframes spin { to { transform: rotate(360deg); } }

/* nota sutil de baja confianza, DEBAJO de la respuesta */
.lowconf-note {
  display: flex; align-items: flex-start; gap: 8px; margin: 12px 0 2px;
  padding: 9px 13px; border-radius: 10px; border-left: 3px solid var(--orange);
  background: rgba(237,125,34,.07); color: var(--text-3);
  font: 500 12.5px/1.45 var(--ui);
}
.lowconf-note svg { flex: none; margin-top: 1px; color: var(--orange); }

/* mensaje de sistema (notificación) */
.bubble--note {
  border-left: 4px solid var(--orange); background: rgba(237,125,34,.07);
}

/* sugerencias de la bienvenida (rellenan el campo de consulta al pulsarlas) */
.welcome-suggest { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.ws-chip {
  padding: 8px 13px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border-2); background: var(--surface-2); color: var(--text-2);
  font: 600 12.5px/1 var(--ui); transition: border-color .15s, color .15s, background .15s;
}
.ws-chip:hover { border-color: var(--blue); color: var(--link); background: var(--cite-bg); }
[data-theme="dark"] .ws-chip:hover { color: var(--blue-bright); }

/* ============================ BLOQUES / MARKDOWN ============================ */
.bubble p, .reader__pages p { margin: 0 0 12px; }
.bubble p:last-child, .reader__pages p:last-child { margin-bottom: 0; }
.bubble strong { font-weight: 700; color: var(--heading); }
.bubble em { font-style: italic; color: var(--text-2); }

.bubble h3, .bubble h4, .bubble h5,
.reader__pages h3, .reader__pages h4, .reader__pages h5 {
  margin: 20px 0 10px; font: 800 14.5px/1.3 var(--ui); color: var(--heading); letter-spacing: -.1px;
  display: flex; align-items: center; gap: 9px;
}
.bubble h3::before, .bubble h4::before, .bubble h5::before,
.reader__pages h3::before, .reader__pages h4::before, .reader__pages h5::before {
  content: ""; width: 5px; height: 16px; border-radius: 3px; background: var(--orange); flex: none;
}
.bubble h3:first-child, .bubble h4:first-child, .bubble h5:first-child, .bubble p:first-child { margin-top: 0; }

.bubble ul, .bubble ol, .reader__pages ul, .reader__pages ol {
  margin: 0 0 14px; padding-left: 4px; display: flex; flex-direction: column; gap: 9px; list-style: none; counter-reset: ol;
}
.bubble ul li, .bubble ol li, .reader__pages ul li, .reader__pages ol li { position: relative; padding-left: 26px; line-height: 1.6; }
.bubble ul li::before, .reader__pages ul li::before {
  content: ""; position: absolute; left: 7px; top: 9px; width: 7px; height: 7px; border-radius: 50%; background: var(--blue);
}
.bubble ol li, .reader__pages ol li { counter-increment: ol; }
.bubble ol li::before, .reader__pages ol li::before {
  content: counter(ol); position: absolute; left: 0; top: 1px; width: 19px; height: 19px; border-radius: 6px;
  background: var(--navy); color: #fff; font: 700 11px/19px var(--ui); text-align: center;
}
[data-theme="dark"] .bubble ol li::before, [data-theme="dark"] .reader__pages ol li::before { background: var(--blue); }

.bubble blockquote, .reader__pages blockquote {
  margin: 16px 0; padding: 11px 15px; border-left: 4px solid var(--orange);
  background: rgba(237,125,34,.07); color: var(--text-2); border-radius: 0 var(--r-md) var(--r-md) 0;
}

.bubble code, .reader__pages code {
  font: 600 .86em/1.3 var(--mono); background: var(--code-bg); color: var(--code-tx);
  border: 1px solid var(--code-bd); padding: 1px 7px; border-radius: 6px; white-space: nowrap;
}
.code-block {
  margin: 14px 0; padding: 12px 14px; background: var(--code-bg); border: 1px solid var(--code-bd);
  border-radius: var(--r-md); overflow-x: auto;
}
.code-block code {
  display: block; background: transparent; border: none; padding: 0; white-space: pre;
  font: 500 13px/1.55 var(--mono); color: var(--code-tx);
}

/* citas inline (pill) — clases mantenidas por compatibilidad con app.js */
.citation-link, .citation-text {
  display: inline-flex; align-items: center; gap: 4px; vertical-align: baseline; margin: 0 1px;
  font: 600 11px/1 var(--ui); color: var(--cite-tx-strong); background: var(--cite-bg);
  border: 1px solid var(--cite-bd); padding: 2px 8px; border-radius: 999px;
  transition: background .15s; white-space: nowrap; max-width: 100%;
}
.citation-link { cursor: pointer; }
.citation-link:hover { background: var(--cite-hover); }
.citation-text { cursor: default; color: var(--cite-tx); }

/* Tag de repuesto (nº de parte del catálogo) inline → abre la ficha flotante. */
.part-tag {
  display: inline-flex; align-items: center; vertical-align: baseline; cursor: pointer;
  font: 700 12px/1.2 var(--mono, ui-monospace, monospace); color: var(--primary-tx, #fff);
  background: var(--primary); border: 1px solid var(--primary); border-radius: 6px;
  padding: 1px 6px; margin: 0 1px; white-space: nowrap; transition: filter .15s;
}
.part-tag:hover { filter: brightness(1.08); }
/* Tag de una pieza cuya referencia CONSULTADA era antigua (alias): tinte de aviso. */
.part-tag--alias { background: var(--warn, #b8860b); border-color: var(--warn, #b8860b); }

/* Nota discreta bajo la respuesta: «referencia antigua → nº Tecport actual». */
.alias-note { margin: 8px 0 2px; display: flex; flex-direction: column; gap: 4px; }
.alias-note__row { display: flex; align-items: flex-start; gap: 6px; font: 500 12.5px/1.4 var(--ui);
  color: var(--text-2); background: var(--warn-bg); border: 1px solid var(--warn-bd);
  border-radius: var(--r-sm, 8px); padding: 6px 10px; }
.alias-note__ico { color: var(--warn); flex: none; }
.alias-note__cur { cursor: pointer; text-decoration: underline dotted; }
.alias-note__cur:hover { color: var(--primary); }

/* Ventana flotante con la ficha de un repuesto. Por encima del chat. */
.part-pop {
  position: fixed; z-index: calc(var(--z-float, 3000) + 25); width: 300px; max-width: calc(100vw - 16px);
  background: var(--surface); border: 1px solid var(--border-2); border-radius: var(--r-md, 12px);
  box-shadow: var(--shadow-lg); overflow: hidden; font: 500 13px/1.45 var(--ui); color: var(--text);
}
.part-pop__head { display: flex; align-items: center; gap: 8px; padding: 9px 12px;
  border-bottom: 1px solid var(--hairline); background: var(--surface-2); }
.part-pop__pn { font: 700 13px/1.2 var(--mono, ui-monospace, monospace); color: var(--heading); flex: 1; word-break: break-all; }
.part-pop__close { flex: none; width: 24px; height: 24px; border: 0; background: transparent;
  color: var(--text-2); font-size: 18px; line-height: 1; cursor: pointer; border-radius: 6px; }
.part-pop__close:hover { background: var(--surface); }
.part-pop__body { padding: 10px 12px; max-height: 50vh; overflow: auto; }
.part-pop__dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; margin: 0; }
.part-pop__dl dt { font-weight: 700; color: var(--text-2); }
.part-pop__dl dd { margin: 0; color: var(--text); word-break: break-word; }
.part-pop__note { color: var(--text-3); font-size: 12px; }
.part-pop__note + .part-pop__note, .part-pop__dl + .part-pop__note { margin-top: 8px; }
/* Aviso de referencia antigua dentro de la ficha. */
.part-pop__warn { color: var(--warn); background: var(--warn-bg); border: 1px solid var(--warn-bd);
  border-radius: var(--r-sm, 8px); padding: 6px 9px; font-size: 12px; margin-bottom: 8px; }
/* Botón «Agregar a cotización» de la ficha flotante del chat. */
.part-pop__cart { margin-top: 10px; width: 100%; display: inline-flex; align-items: center; justify-content: center;
  gap: 7px; padding: 8px 12px; border: 1px solid var(--primary); border-radius: var(--r-sm, 8px);
  background: var(--primary); color: var(--primary-tx, #fff); font: 700 12.5px/1 var(--ui); cursor: pointer;
  transition: filter .15s; }
.part-pop__cart:hover { filter: brightness(1.08); }
.part-pop__cart svg { flex: none; }

/* ============================ RECOMENDACIÓN IA ============================ */
.ai-suggestion {
  margin: 4px 0 0; border-radius: 14px; padding: 14px 16px; background: rgba(237,125,34,.07);
  border: 1px solid rgba(237,125,34,.32); border-left: 4px solid var(--orange);
}
.ai-suggestion-header { display: flex; align-items: center; gap: 10px; }
.ai-suggestion-badge { font: 800 10px/1 var(--ui); color: #fff; background: var(--orange); padding: 5px 7px; border-radius: 6px; letter-spacing: .5px; }
.ai-suggestion-title { font: 800 13.5px/1 var(--ui); color: var(--heading); }
.ai-suggestion-body { margin: 11px 0 0; font-size: 14px; line-height: 1.62; color: var(--text); }
.ai-suggestion-body p:last-child { margin-bottom: 0; }
.ai-suggestion-footer { margin: 10px 0 0; font: italic 400 11.5px/1.55 var(--ui); color: var(--text-3); border-top: 1px dashed var(--border-2); padding-top: 9px; }
.ai-suggestion-footer strong { font-style: normal; color: var(--text-2); font-weight: 600; }
.ai-suggestion.forming { opacity: .75; }
.ai-suggestion.forming .ai-suggestion-title::after { content: " · preparando…"; color: var(--text-3); font-weight: 400; font-style: italic; }

/* ============================ FUENTES ============================ */
.source-section { margin-top: 4px; }
.source-title { display: flex; align-items: center; gap: 8px; font: 800 11px/1 var(--ui); letter-spacing: 1.2px; text-transform: uppercase; color: var(--text-3); margin-bottom: 12px; }
.source-title svg { color: var(--text-3); }
.source-title .src-count { font-size: 11px; color: var(--link); background: var(--cite-bg); padding: 3px 8px; border-radius: 999px; letter-spacing: 0; }
.source-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(310px, 1fr)); gap: 14px; }
.source-card {
  display: flex; gap: 13px; padding: 13px; text-align: left; cursor: pointer; border-radius: 13px;
  background: var(--surface); border: 1px solid var(--border); transition: transform .16s, box-shadow .2s, border-color .2s;
  position: relative; overflow: hidden;
}
.source-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--blue); }
.source-thumb-wrap {
  flex: none; width: 72px; height: 92px; border-radius: 8px; position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--border-2); box-shadow: var(--shadow-sm);
}
[data-theme="dark"] .source-thumb-wrap { background: #cdd6df; }
.source-thumbnail { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .35s ease; }
.source-card.has-preview:hover .source-thumbnail { transform: scale(1.06); }
.thumb__corner { position: absolute; right: 4px; bottom: 4px; font: 800 7px/1 var(--ui); color: #fff; background: var(--orange); padding: 2px 4px; border-radius: 3px; letter-spacing: .5px; }
.source-thumb-overlay {
  position: absolute; inset: 0; display: grid; place-items: center; color: #fff; opacity: 0;
  background: linear-gradient(135deg, rgba(31,111,199,.55) 0%, rgba(20,58,94,.6) 100%); transition: opacity .25s ease;
}
.source-card.has-preview:hover .source-thumb-overlay { opacity: 1; }
.source-info { display: flex; flex-direction: column; gap: 4px; min-width: 0; flex: 1; }
.source-file { font: 700 13px/1.3 var(--ui); color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.source-meta { font: 600 11.5px/1.3 var(--ui); color: var(--text-3); }
.source-meta .src-kind { color: var(--link); }
.source-rel { display: flex; align-items: center; gap: 8px; margin-top: 2px; }
.source-score-bar { flex: 1; height: 5px; border-radius: 999px; background: var(--surface-3); overflow: hidden; }
.source-score-bar span { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--blue), var(--orange)); }
.source-pct { font: 800 11px/1 var(--ui); color: var(--text-2); }
.source-hint { font: 700 11px/1 var(--ui); color: var(--link); margin-top: 3px; }
.source-snippets { margin-top: 6px; display: flex; flex-direction: column; gap: 3px; }
.source-snippet { font: 400 11px/1.45 var(--ui); color: var(--text-3); font-style: italic; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Tarjeta de fuente que es un PLANO de despiece: distintivo naranja. */
.source-card.is-diagram { border-color: var(--orange); }
.source-card.is-diagram .thumb__corner { background: var(--blue); }

/* ===================== PLANO DE DESPIECE (bloque dedicado) ===================== */
.diagram-section { margin-top: 14px; padding: 12px 14px; border: 1px solid var(--orange); border-radius: 14px; background: var(--cite-bg); }
.diagram-title { display: flex; align-items: center; gap: 8px; font: 800 11px/1 var(--ui); letter-spacing: 1.2px; text-transform: uppercase; color: var(--text-2); margin-bottom: 12px; }
.diagram-title svg { color: var(--orange); }
.diagram-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.diagram-card { display: flex; flex-direction: column; gap: 8px; cursor: pointer; border-radius: 12px; overflow: hidden; background: var(--surface); border: 1px solid var(--border); transition: transform .16s, box-shadow .2s, border-color .2s; }
.diagram-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--orange); }
.diagram-thumb-wrap { position: relative; width: 100%; aspect-ratio: 4 / 3; background: #fff; overflow: hidden; }
[data-theme="dark"] .diagram-thumb-wrap { background: #cdd6df; }
.diagram-thumbnail { width: 100%; height: 100%; object-fit: contain; display: block; transition: transform .35s ease; }
.diagram-card:hover .diagram-thumbnail { transform: scale(1.04); }
.diagram-thumb-overlay { position: absolute; inset: 0; display: grid; place-items: center; color: #fff; opacity: 0; background: linear-gradient(135deg, rgba(231,124,38,.5) 0%, rgba(20,58,94,.6) 100%); transition: opacity .25s ease; }
.diagram-card:hover .diagram-thumb-overlay { opacity: 1; }
.diagram-info { padding: 0 10px 10px; display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.diagram-label { font: 700 12.5px/1.3 var(--ui); color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.diagram-meta { font: 600 11px/1.3 var(--ui); color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@media (hover: none) {
  .diagram-card:hover .diagram-thumb-overlay { opacity: 0; }
  .diagram-card:hover .diagram-thumbnail { transform: none; }
}

/* ============================ LECTOR DOBLE PÁGINA ============================ */
.reader { border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
.reader:focus { outline: none; }
.reader__bar {
  display: flex; align-items: center; gap: 12px; padding: 11px 16px;
  background: var(--reader-bar); color: var(--reader-bar-tx);
}
[data-theme="dark"] .reader__bar { border-bottom: 1px solid var(--border); }
.reader__lead { display: inline-flex; align-items: center; gap: 8px; font: 800 13.5px/1 var(--ui); }
.reader__sub { font: 600 12px/1 var(--ui); color: rgba(255,255,255,.62); }
[data-theme="dark"] .reader__sub { color: var(--text-3); }
.reader__spacer { flex: 1; }
.reader__fs { display: flex; gap: 4px; }
.reader__fs button {
  width: 30px; height: 28px; border-radius: 7px; border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.08); color: var(--reader-bar-tx); cursor: pointer; font: 700 12px/1 var(--ui);
}
.reader__fs button:hover { background: rgba(255,255,255,.2); }
[data-theme="dark"] .reader__fs button { border-color: var(--border-2); background: var(--surface-2); }
.reader__close {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer; font: 700 12px/1 var(--ui);
  color: var(--reader-close-tx); background: var(--reader-close-bg); border: none; padding: 8px 13px; border-radius: 999px; transition: transform .15s;
}
.reader__close:hover { transform: translateY(-1px); }

.reader__spread {
  position: relative; background: var(--paper);
  background-image: radial-gradient(circle at 50% 0, var(--paper-2), var(--paper) 70%);
  padding: 44px clamp(40px, 4.5vw, 76px) 54px; overflow: hidden;
  /* La altura la fija JS (paginateReader) al espacio vertical visible. */
}
/* Ventana de recorte: muestra sólo el pliego actual; las columnas que no
   caben quedan a la derecha y se llega a ellas pasando de página. */
.reader__viewport {
  position: relative; z-index: 2; height: 100%; overflow: hidden;
  /* Canalón invisible: una franja transparente al centro deja ver el papel del pliego
     (detrás del viewport) en reposo, pero recorta el texto que se desliza por el centro
     al pasar de página → ya no se "atraviesa" la lomera. Sin tinte ⇒ sin banda visible. */
  --reader-gutter: clamp(54px, 6.5vw, 112px);
  -webkit-mask: linear-gradient(90deg, #000 calc(50% - var(--reader-gutter)/2 - 7px), transparent calc(50% - var(--reader-gutter)/2), transparent calc(50% + var(--reader-gutter)/2), #000 calc(50% + var(--reader-gutter)/2 + 7px));
          mask: linear-gradient(90deg, #000 calc(50% - var(--reader-gutter)/2 - 7px), transparent calc(50% - var(--reader-gutter)/2), transparent calc(50% + var(--reader-gutter)/2), #000 calc(50% + var(--reader-gutter)/2 + 7px));
}
.reader__pages {
  column-count: 2; column-gap: clamp(64px, 7vw, 120px); column-rule: 0; column-fill: auto;
  height: 100%; will-change: transform; transition: transform .5s cubic-bezier(.22,.61,.36,1);
  color: var(--paper-tx); font-family: var(--serif);
  font-size: calc(16px * var(--fs, 1)); line-height: 1.72; letter-spacing: .1px;
}
.reader__pages p { margin-bottom: 14px; text-align: justify; hyphens: auto; }
.reader__pages h3, .reader__pages h4, .reader__pages h5 { font-family: var(--ui); font-size: calc(15px * var(--fs,1)); margin-top: 22px; break-after: avoid; }
.reader__pages h3:first-child, .reader__pages h4:first-child, .reader__pages h5:first-child, .reader__pages p:first-child { margin-top: 0; }
.reader__pages ul, .reader__pages ol { gap: 10px; margin-bottom: 16px; }
.reader__pages li { break-inside: avoid; }
.reader__pages .ai-suggestion, .reader__pages blockquote { break-inside: avoid; }
.reader__pages .citation-link, .reader__pages .citation-text { font-family: var(--ui); }
.reader__pages code { font-family: var(--mono); }

/* Lomera: sombra sutil de encuadernación sobre el canalón (no sobre el texto). */
.reader__spine {
  position: absolute; top: 24px; bottom: 24px; left: 50%; width: clamp(60px, 7vw, 120px); transform: translateX(-50%);
  background: var(--spine); z-index: 4; pointer-events: none;
}
.reader__spine::before, .reader__spine::after { content: ""; position: absolute; top: 0; bottom: 0; width: 1px; background: var(--paper-line); }
.reader__spine::before { left: 28px; } .reader__spine::after { right: 28px; }

.reader__wm { position: absolute; right: 26px; bottom: 18px; z-index: 1; pointer-events: none; opacity: var(--watermark); }
.reader__wm img { width: 150px; height: 150px; }
.reader__folio { position: absolute; bottom: 18px; z-index: 3; font: 600 11px/1 var(--serif); color: var(--text-faint); letter-spacing: 2px; }
.reader__folio--l { left: 0; right: 50%; text-align: center; }
.reader__folio--r { right: 0; left: 50%; text-align: center; }

/* Contador de páginas en la barra del lector */
.reader__pageinfo { font: 700 12px/1 var(--ui); color: rgba(255,255,255,.85); white-space: nowrap; }
[data-theme="dark"] .reader__pageinfo { color: var(--text-2); }

/* Flechas de paso de página (sobre los bordes del pliego) */
.reader__nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 42px; height: 42px; border-radius: 50%; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text-2);
  font-size: 24px; line-height: 1; display: grid; place-items: center; padding: 0 0 3px;
  box-shadow: var(--shadow-md); opacity: .88;
  transition: opacity .2s, transform .15s, background .2s;
}
.reader__nav:hover { opacity: 1; background: var(--surface-2); transform: translateY(-50%) scale(1.06); }
.reader__nav--prev { left: 12px; }
.reader__nav--next { right: 12px; }
.reader__nav:disabled { opacity: 0; pointer-events: none; }
@media (hover: none) { .reader__nav:hover { transform: translateY(-50%); } }

/* ============================ COMPOSER ============================ */
.composer {
  flex: none; background: var(--app); border-top: 1px solid var(--border);
  /* La safe-area inferior mantiene el composer por encima de la barra de gestos */
  padding: 14px max(34px, var(--safe-right)) calc(20px + var(--safe-bottom)) max(34px, var(--safe-left));
}
.composer__box {
  max-width: 1032px; margin: 0 auto; display: flex; align-items: flex-end; gap: 8px; padding: 8px 8px 8px 12px;
  background: var(--surface); border: 1.5px solid var(--border-2); border-radius: 18px; box-shadow: var(--shadow-sm);
  transition: border-color .2s, box-shadow .2s;
}
.composer__box:focus-within { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(31,111,199,.12); }
.composer__box textarea {
  flex: 1; resize: none; border: none; outline: none; background: none; color: var(--text);
  font: 500 15px/1.5 var(--ui); padding: 9px 4px; max-height: 160px;
}
.composer__box textarea::placeholder { color: var(--text-faint); }
.composer__tool { flex: none; width: 38px; height: 38px; border-radius: 11px; border: none; background: none; color: var(--text-3); cursor: pointer; display: grid; place-items: center; transition: background .15s, color .15s; }
.composer__tool:hover { background: var(--surface-3); color: var(--text); }
/* Nueva conversación desde el composer: sólo tiene sentido en móvil,
   donde el sidebar (y su botón "Nueva conversación") vive en el cajón. */
.composer__new { display: none; }
@media (max-width: 820px) {
  .composer__new { display: grid; }
}
/* Menú "+" del composer y su panel: sólo móvil (en escritorio los tools y los
   controles de respuesta van inline). */
.composer__more { display: none; }
.composer__menu { display: none; }
.composer__send {
  flex: none; width: 40px; height: 40px; border-radius: 12px; border: none; cursor: pointer; display: grid; place-items: center;
  background: var(--surface-3); color: var(--text-faint); transition: all .2s var(--ease);
}
.composer__send.is-ready { background: linear-gradient(135deg, var(--blue) 0%, #144a7d 100%); color: #fff; box-shadow: 0 5px 14px rgba(31,111,199,.4); }
.composer__send.is-ready:hover { transform: translateY(-1px) scale(1.03); }
.composer__hint { max-width: 1032px; margin: 9px auto 0; text-align: center; font: 500 11.5px/1 var(--ui); color: var(--text-faint); }
.composer__hint b { color: var(--text-3); font-weight: 700; }
.composer__box.is-dragover { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(31,111,199,.18); }

/* previsualización de imagen adjunta */
.composer__attach {
  max-width: 1032px; margin: 0 auto 8px; display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; background: var(--surface); border: 1.5px solid var(--border-2); border-radius: 14px;
}
/* El atributo `hidden` debe ganar a `display:flex`: sin esto, la barra de
   previsualización se mostraba vacía (sin imagen) aunque no hubiera adjunto. */
.composer__attach[hidden] { display: none; }
.composer__attach img { width: 44px; height: 44px; object-fit: cover; border-radius: 8px; border: 1px solid var(--border-2); }
.composer__attach-name { flex: 1; font: 500 13px var(--ui); color: var(--text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.composer__attach-remove {
  flex: none; width: 26px; height: 26px; border-radius: 8px; border: none; cursor: pointer;
  background: var(--surface-3); color: var(--text-3); font-size: 18px; line-height: 1; display: grid; place-items: center;
}
.composer__attach-remove:hover { background: rgba(237,125,34,.14); color: var(--orange); }

/* controles de modo de respuesta (rápido/estándar/profundo) + slider de extensión */
.composer__controls {
  max-width: 1032px; margin: 0 auto 8px; display: flex; align-items: center;
  justify-content: space-between; gap: 12px;
}
.composer__modes {
  display: inline-flex; gap: 2px; padding: 3px;
  background: var(--surface); border: 1.5px solid var(--border-2); border-radius: 12px;
}
.mode-btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border: none;
  border-radius: 9px; background: none; color: var(--text-3); font: 600 12px var(--ui);
  cursor: pointer; transition: background .15s, color .15s, box-shadow .15s;
}
.mode-btn:hover { background: var(--surface-3); color: var(--text); }
.mode-btn.is-active {
  background: linear-gradient(135deg, var(--blue) 0%, #144a7d 100%); color: #fff;
  box-shadow: 0 2px 8px rgba(31,111,199,.35);
}
.composer__length { display: inline-flex; align-items: center; gap: 9px; }
.length-name { font: 600 11.5px var(--ui); color: var(--text-3); min-width: 48px; text-align: right; }
#length-slider {
  -webkit-appearance: none; appearance: none; width: 110px; height: 4px; border-radius: 2px;
  background: var(--border-2); outline: none; cursor: pointer;
}
#length-slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 14px; height: 14px; border-radius: 50%;
  background: var(--blue); border: 2px solid var(--surface); box-shadow: 0 1px 4px rgba(15,28,45,.25);
}
#length-slider::-moz-range-thumb {
  width: 12px; height: 12px; border-radius: 50%; background: var(--blue);
  border: 2px solid var(--surface); box-shadow: 0 1px 4px rgba(15,28,45,.25);
}

/* ============================ TOASTS ============================ */
/* Los toasts son avisos transitorios: SIEMPRE topmost. A z-index 1000 los tapaban las
   vistas de sección (.adm--page / #tp-parts = --z-view: 1000, insertadas después en el
   DOM) y los diálogos (--z-float + 10); por eso "no salían" en Flota/Manual/carrito. */
.toast-stack {
  position: fixed; top: calc(82px + var(--safe-top)); right: calc(18px + var(--safe-right)); z-index: calc(var(--z-float, 3000) + 40);
  display: flex; flex-direction: column; gap: 10px; max-width: min(380px, calc(100vw - 36px));
  pointer-events: none;
}
.toast {
  pointer-events: auto; display: flex; align-items: flex-start; gap: 10px;
  padding: 12px 14px; border-radius: 12px; background: var(--surface);
  border: 1px solid var(--border-2); border-left: 4px solid var(--blue);
  box-shadow: var(--shadow-md, 0 10px 30px rgba(0,0,0,.18));
  font: 500 13.5px/1.45 var(--ui); color: var(--text);
  /* VISIBLE por defecto: la opacidad NUNCA depende de la animación de entrada.
     Antes: nacía con opacity:0 y un rAF añadía .is-in; si el navegador no entrega
     frames (página estática, ventana ocluida, headless), el rAF/animación no corre y
     el toast quedaba montado pero transparente — "solo salía la primera vez". El
     keyframe solo anima el deslizamiento; sin frames, el toast igual se ve. */
  opacity: 1; transform: none;
  animation: toastIn .22s var(--ease);
  transition: opacity .22s var(--ease), transform .22s var(--ease);
}
@keyframes toastIn { from { transform: translateX(16px); } to { transform: none; } }
/* .is-in queda como no-op de compatibilidad (app.js aún la añade vía rAF; ya no hace falta). */
.toast.is-out { opacity: 0; transform: translateX(16px); }
.toast__ico { flex: none; width: 18px; height: 18px; margin-top: 1px; color: var(--blue); }
.toast__msg { flex: 1; }
.toast__close {
  flex: none; border: none; background: none; cursor: pointer; color: var(--text-faint);
  font-size: 16px; line-height: 1; padding: 0 2px; align-self: flex-start;
}
.toast__close:hover { color: var(--text); }
.toast--error   { border-left-color: var(--danger); }
.toast--error   .toast__ico { color: var(--danger); }
.toast--success { border-left-color: var(--ok); }
.toast--success .toast__ico { color: var(--ok); }
/* Confirmación de la cesta: tarjeta blanca con acentos azul de marca; el elemento agregado
   se resalta en azul (--blue) como "detalle" de la empresa. */
.toast--cart { border-left-color: var(--blue); }
.toast--cart .toast__ico { color: var(--blue); }
.toast--cart .tpq-toast__t { display: block; font-weight: 600; color: var(--text); }
.toast--cart .tpq-toast__d { display: block; margin-top: 2px; font-weight: 700; color: var(--blue); font-size: 12.5px; overflow-wrap: anywhere; }
.toast--info    { border-left-color: var(--blue); }
.toast--info    .toast__ico { color: var(--blue); }

/* imagen dentro de la burbuja del usuario */
.bubble__image { display: block; max-width: 320px; max-height: 280px; width: auto; border-radius: 10px; margin-bottom: 6px; }
.bubble__text { white-space: pre-wrap; word-wrap: break-word; }

/* ============================ LIGHTBOX ============================ */
.lightbox {
  /* Por encima del visor TS (--z-view), del modal admin (--z-dialog) y de cualquier
     overlay flotante: el lightbox es modal y siempre debe quedar al frente. */
  position: fixed; inset: 0; z-index: calc(var(--z-float, 3000) + 20); background: rgba(8,18,30,.62); backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px); display: none; align-items: center; justify-content: center;
  padding: calc(20px + var(--safe-top)) max(30px, var(--safe-right)) calc(20px + var(--safe-bottom)) max(30px, var(--safe-left));
}
.lightbox.active { display: flex; animation: fadeup .2s ease both; }
.lightbox-content {
  position: relative; display: flex; flex-direction: column; align-items: center; gap: 14px;
  width: min(92vw, 1100px); max-height: 92dvh;
}
.lightbox-close {
  position: absolute; top: -6px; right: -6px; width: 38px; height: 38px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text-2); cursor: pointer;
  display: grid; place-items: center; font-size: 22px; line-height: 1; z-index: 10; transition: background .2s;
}
.lightbox-close:hover { background: var(--surface-3); }
.lightbox-nav {
  position: absolute; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--surface); color: var(--text-2); cursor: pointer;
  display: grid; place-items: center; font-size: 20px; z-index: 10; transition: background .2s;
}
.lightbox-nav:hover { background: var(--surface-3); transform: translateY(-50%) scale(1.05); }
.lightbox-prev { left: -10px; } .lightbox-next { right: -10px; }
.lightbox-stage {
  position: relative; width: 100%; flex: 1; min-height: 320px; max-height: 78dvh;
  display: flex; align-items: center; justify-content: center; border-radius: var(--r-md);
  background: var(--surface); border: 1px solid var(--border); overflow: auto; box-shadow: var(--shadow-lg);
}
.lightbox-stage img {
  max-width: 100%; max-height: 78dvh; width: auto; height: auto; object-fit: contain;
  border-radius: var(--r-sm); cursor: zoom-in; display: block;
}
.lightbox-stage.zoomed {
  /* En zoom abandonamos el centrado flex (corta las zonas superiores e impide
     scrollear hacia ellas) y pasamos a layout en bloque totalmente desplazable. */
  display: block; overflow: auto; cursor: grab;
}
.lightbox-stage.zoomed img {
  max-width: none; max-height: none; width: auto; height: auto;
  margin: 0 auto; display: block; cursor: grab;
}
.lightbox-stage.zoomed.is-panning, .lightbox-stage.zoomed.is-panning img { cursor: grabbing; }
.lightbox-loader, .lightbox-error {
  display: none; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
  color: var(--text-2); padding: 32px; text-align: center;
}
.lightbox-stage[data-state="loading"] .lightbox-loader { display: flex; }
.lightbox-stage[data-state="loading"] img, .lightbox-stage[data-state="loading"] .lightbox-error { display: none; }
.lightbox-stage[data-state="loaded"] img { display: block; }
.lightbox-stage[data-state="loaded"] .lightbox-loader, .lightbox-stage[data-state="loaded"] .lightbox-error { display: none; }
.lightbox-stage[data-state="error"] .lightbox-error { display: flex; }
.lightbox-stage[data-state="error"] img, .lightbox-stage[data-state="error"] .lightbox-loader { display: none; }
.loader-spinner { width: 42px; height: 42px; border: 3px solid var(--border-2); border-top-color: var(--blue); border-radius: 50%; animation: spin .9s linear infinite; }
.lightbox-error p { font-size: 14px; color: var(--text); }
.lightbox-error a { color: var(--link); text-decoration: none; border-bottom: 1px solid var(--cite-bd); }
.lightbox-caption { text-align: center; width: 100%; }
.lightbox-caption h4 { margin: 0; font: 800 16px/1.25 var(--ui); color: var(--text); }
.lightbox-caption p { margin: 4px 0 0; font: 600 12.5px/1.4 var(--ui); color: var(--text-3); }
.lightbox-action {
  display: inline-block; margin-top: 10px; color: var(--link); font: 700 12px/1 var(--ui); text-decoration: none;
  border: 1px solid var(--cite-bd); padding: 7px 13px; border-radius: 999px; transition: background .2s;
}
.lightbox-action:hover { background: var(--cite-bg); }

/* ============================ CHIP DE TABLA (colapsada) ============================ */
.table-chip {
  display: inline-flex; align-items: center; gap: 11px; margin: 12px 0;
  padding: 10px 12px; max-width: 100%; text-align: left; cursor: pointer;
  background: linear-gradient(180deg, rgba(237,125,34,.10), rgba(237,125,34,.05));
  border: 1.5px solid rgba(237,125,34,.45); border-left: 4px solid var(--orange);
  border-radius: var(--r-md); color: var(--text); font: inherit;
  transition: transform .15s var(--ease), box-shadow .2s var(--ease), background .2s;
}
.table-chip:hover { transform: translateY(-1px); box-shadow: var(--shadow-md);
  background: linear-gradient(180deg, rgba(237,125,34,.16), rgba(237,125,34,.08)); }
.table-chip__ico { display: grid; place-items: center; width: 30px; height: 30px; flex: 0 0 auto;
  border-radius: 9px; background: var(--orange); color: #fff; }
.table-chip__main { display: flex; flex-direction: column; gap: 1px; line-height: 1.2; }
.table-chip__label { font: 800 13px/1.2 var(--ui); color: var(--text); }
.table-chip__dims { font: 600 11.5px/1.2 var(--ui); color: var(--text-3); }
.table-chip__cta { display: inline-flex; align-items: center; gap: 5px; margin-left: auto;
  font: 800 11.5px/1 var(--ui); color: #fff; background: var(--orange);
  padding: 7px 11px; border-radius: 999px; white-space: nowrap; }
.table-chip:hover .table-chip__cta { background: var(--orange-deep); }

/* ============================ MODAL DE TABLA (ventana flotante) ============================ */
.table-modal {
  position: fixed; inset: 0; z-index: 70; display: none; align-items: center; justify-content: center;
  padding: calc(20px + var(--safe-top)) max(30px, var(--safe-right)) calc(20px + var(--safe-bottom)) max(30px, var(--safe-left));
  background: rgba(8,18,30,.62); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.table-modal.active { display: flex; animation: fadeup .2s ease both; }
.table-modal__panel {
  display: flex; flex-direction: column; width: min(94vw, 1000px); max-height: 88dvh;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg); overflow: hidden;
}
.table-modal__bar {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px;
  border-bottom: 1px solid var(--border); background: var(--surface-2);
}
.table-modal__title { display: inline-flex; align-items: center; gap: 8px; color: var(--orange);
  font: 800 15px/1 var(--ui); }
.table-modal__dims { font: 600 12px/1 var(--ui); color: var(--text-3); }
.table-modal__spacer { flex: 1; }
.table-modal__close {
  width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text-2); cursor: pointer; font-size: 21px; line-height: 1;
  display: grid; place-items: center; transition: background .2s;
}
.table-modal__close:hover { background: var(--surface-3); }
.table-modal__body { padding: 18px; overflow: auto; }

/* Tabla bien renderizada (dentro del modal) */
.rag-table { border-collapse: collapse; width: 100%; font: 500 13.5px/1.5 var(--ui); color: var(--text); }
.rag-table th, .rag-table td { border: 1px solid var(--border-2); padding: 9px 13px; vertical-align: top; }
.rag-table thead th {
  background: var(--navy); color: #fff; font-weight: 700; text-align: left; position: sticky; top: 0;
}
.rag-table tbody tr:nth-child(even) { background: var(--surface-2); }
.rag-table tbody tr:hover { background: var(--cite-bg); }
.rag-table code { font: 600 .86em/1.3 var(--mono); background: var(--code-bg); color: var(--code-tx); padding: 1px 5px; border-radius: 5px; }

/* ============================ PANEL DE DOCUMENTOS INDEXADOS ============================ */
/* (El botón Documentos del header usa .hd__tab, homogeneizado en el bloque HEADER.) */

.docs-modal {
  position: fixed; inset: 0; z-index: 70; display: none; align-items: center; justify-content: center;
  padding: calc(20px + var(--safe-top)) max(30px, var(--safe-right)) calc(20px + var(--safe-bottom)) max(30px, var(--safe-left));
  background: rgba(8,18,30,.62); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.docs-modal.active { display: flex; animation: fadeup .2s ease both; }
.docs-modal__panel {
  display: flex; flex-direction: column; width: min(94vw, 880px); max-height: 86dvh;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg); overflow: hidden;
}
.docs-modal__bar {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px;
  border-bottom: 1px solid var(--border); background: var(--surface-2);
}
.docs-modal__title { display: inline-flex; align-items: center; gap: 8px; color: var(--orange); font: 800 15px/1 var(--ui); }
.docs-modal__meta { font: 600 12px/1 var(--ui); color: var(--text-3); }
.docs-modal__spacer { flex: 1; }
.docs-modal__refresh, .docs-modal__close {
  width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text-2); cursor: pointer; line-height: 1;
  display: grid; place-items: center; transition: background .2s;
}
.docs-modal__close { font-size: 21px; }
.docs-modal__refresh:hover, .docs-modal__close:hover { background: var(--surface-3); }
.docs-modal__refresh.is-spinning svg { animation: spin 1s linear infinite; }

.docs-modal__summary {
  display: flex; flex-wrap: wrap; gap: 8px; padding: 13px 16px;
  border-bottom: 1px solid var(--border); background: var(--surface);
}
.docs-chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; border-radius: 999px; cursor: pointer;
  font: 600 12px/1 var(--ui); color: var(--text-2); background: var(--surface-2);
  border: 1px solid var(--border-2); transition: background .2s, border-color .2s, color .2s;
}
.docs-chip b { font-weight: 800; color: var(--text); }
.docs-chip:hover { background: var(--surface-3); }
.docs-chip.is-active { border-color: var(--orange); color: var(--orange); background: rgba(237,125,34,.08); }
.docs-chip.is-active b { color: var(--orange); }

.docs-modal__body { flex: 1; overflow: auto; padding: 6px 0; }
.docs-empty { padding: 28px 20px; text-align: center; font: 600 13px/1.5 var(--ui); color: var(--text-3); }
.docs-row {
  display: flex; align-items: center; gap: 12px; padding: 9px 18px;
  border-bottom: 1px solid var(--border); font: 500 13px/1.4 var(--ui); color: var(--text);
}
.docs-row:last-child { border-bottom: none; }
.docs-row:hover { background: var(--surface-2); }
.docs-row__name { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 600; }
.docs-row__vec, .docs-row__size { flex: none; font: 600 11.5px/1 var(--ui); color: var(--text-3); white-space: nowrap; }
.docs-badge {
  flex: none; padding: 4px 10px; border-radius: 999px; white-space: nowrap;
  font: 700 11px/1.2 var(--ui); border: 1px solid transparent;
}
.docs-badge.is-indexed  { color: #1d7a3e; background: rgba(34,160,84,.12);  border-color: rgba(34,160,84,.3); }
.docs-badge.is-pending  { color: #8a6d1a; background: rgba(220,170,40,.13); border-color: rgba(220,170,40,.35); }
.docs-badge.is-modified { color: var(--warn); background: var(--warn-bg); border-color: var(--warn-bd); }
.docs-badge.is-outdated { color: #7a4ec2; background: rgba(140,90,220,.12); border-color: rgba(140,90,220,.3); }
.docs-badge.is-orphan   { color: #b03434; background: rgba(214,69,69,.1);   border-color: rgba(214,69,69,.3); }
.docs-badge.is-indexing { color: var(--orange); background: rgba(237,125,34,.1); border-color: rgba(237,125,34,.35); animation: blink 1.2s infinite; }
[data-theme="dark"] .docs-badge.is-indexed  { color: #5fd68f; }
[data-theme="dark"] .docs-badge.is-pending  { color: #e8c558; }
[data-theme="dark"] .docs-badge.is-modified { color: #f0a35e; }
[data-theme="dark"] .docs-badge.is-outdated { color: #b696ec; }
[data-theme="dark"] .docs-badge.is-orphan   { color: #ec8484; }

.docs-modal__foot {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 11px 16px;
  border-top: 1px solid var(--border); background: var(--surface-2);
  font: 600 11px/1.4 var(--ui); color: var(--text-3);
}
.docs-foot__warn { color: var(--warn); }
.docs-foot__ver { margin-left: auto; font-family: var(--mono); font-weight: 500; }

/* ============================ RESPONSIVE ============================ */
/* ── Anchos medios: las etiquetas de los botones de acción no caben y se
      cortaban contra el borde derecho; quedan sólo los iconos (el title
      de cada botón sigue explicando su función al pasar el cursor). ── */
@media (max-width: 1380px) {
  .hd { gap: 12px; }
  .hd__actions { gap: 8px; flex: none; }
  .hd__tab span, .hd-menu__btn > span, .hd__stop span { display: none; }
  .hd__tab, .hd-menu__btn, .hd__stop {
    padding: 9px 11px; min-width: 40px; min-height: 40px; justify-content: center;
  }
  /* Los ítems DENTRO del panel del menú conservan sus etiquetas (el panel tiene ancho). */
}

@media (max-width: 1080px) {
  .thread, .composer__box, .composer__hint, .composer__controls { max-width: 100%; }
  .reader__pages { column-gap: 48px; }
  .reader__spread { padding: 32px 34px 44px; }
}
/* ── Tablet / iPad portrait: el lector pasa a una sola página pero sigue
      siendo cómodo de leer (tipografía de lectura, ancho contenido). ── */
@media (max-width: 820px) {
  .reader__pages { column-count: 1; column-gap: 0; }
  .reader__viewport { -webkit-mask: none; mask: none; }
  .reader__spine, .reader__folio--l, .reader__folio--r { display: none; }
  .reader__spread { padding: 30px clamp(22px, 5vw, 44px) 40px; }
  .reader__nav { width: 36px; height: 36px; font-size: 20px; }
  .reader__nav--prev { left: 6px; }
  .reader__nav--next { right: 6px; }

  /* El botón hamburguesa aparece y abre el cajón */
  .hd__menu { display: grid; }
  .hd { gap: 12px; padding: 0 14px; }
  /* La navegación central (flex:1) mantiene las acciones a la derecha; el estado
     unificado (punto + hover) es diminuto y sigue visible. */
  .hd__actions { margin-left: auto; }

  /* ── El sidebar se convierte en un cajón deslizable (off-canvas) ── */
  .sb {
    position: fixed; top: 0; left: 0; height: 100dvh; z-index: 60;
    width: min(86vw, 300px);
    /* El cajón cubre el borde izquierdo: respeta notch y barra de gestos */
    padding: calc(16px + var(--safe-top)) 14px calc(16px + var(--safe-bottom)) calc(14px + var(--safe-left));
    transform: translateX(-100%);
    transition: transform .32s var(--ease);
    box-shadow: 8px 0 40px rgba(0,0,0,.4);
  }
  .sb.sb--open { transform: translateX(0); }

  /* En móvil ignoramos el modo "colapsado" de escritorio: el cajón
     siempre muestra el contenido completo cuando está abierto. */
  .sb.sb--collapsed { width: min(86vw, 300px); padding: 16px 14px; }
  .sb--collapsed .sb__label { opacity: 1; pointer-events: auto; width: auto; }
  .sb--collapsed .sb__logo-plaque { display: inline-flex; }
  .sb--collapsed .sb__icon { display: none; }
  .sb--collapsed .sb__top { flex-direction: row; gap: 8px; align-items: center; }
  .sb--collapsed .sb__brand { flex: 1; justify-content: flex-start; }
  .sb--collapsed .sb__new { width: auto; height: auto; margin: 0; justify-content: flex-start; gap: 10px; padding: 12px 14px; }
  .sb--collapsed .sb__docs { width: auto; height: auto; margin: 0; justify-content: flex-start; gap: 9px; padding: 11px 12px; }
  .sb--collapsed .sb__docs-count { display: inline-block; }
  .sb--collapsed .sb__section,
  .sb--collapsed .sb__hist { display: flex; }
  .sb--collapsed .sb__user {
    width: auto; margin: 0; justify-content: flex-start; gap: 10px; padding: 10px;
    background: var(--sidebar-card); border-color: var(--sidebar-line); box-shadow: inset 0 1px 0 rgba(255,255,255,.05);
  }
  /* El cajón muestra etiquetas: los tooltips de modo colapsado sobran aquí */
  .sb--collapsed .sb-tip::after { display: none; }
}

/* ── Teléfonos: compactamos cabecera y composer; ocultamos las etiquetas
      de los botones de acción dejando sólo los iconos. ── */
@media (max-width: 600px) {
  .hd {
    height: calc(58px + var(--safe-top)); gap: 8px;
    padding: var(--safe-top) calc(10px + var(--safe-right)) 0 calc(10px + var(--safe-left));
  }
  .hd__titles em { display: none; }
  .hd__actions { gap: 8px; }
  .hd__tab span, .hd-menu__btn > span, .hd__stop span { display: none; }
  /* Solo iconos, pero con objetivo táctil suficiente (~40px) */
  .hd__tab, .hd-menu__btn, .hd__stop {
    padding: 9px 11px; min-width: 40px; min-height: 40px; justify-content: center;
  }
  /* El panel del menú se ancla al borde para no salirse de la pantalla. */
  .hd-menu__panel { right: -8px; }

  /* Gestor de opciones (kebab): en móvil colapsa nav + índice + idioma + tema en un
     único menú para no encimar botones sobre el título. Se ocultan los inline (el
     kebab delega en ellos por JS). !important porque #index-menu tiene display inline
     fijado por el gating de rol. El panel del kebab conserva sus etiquetas visibles. */
  .hd-menu--more { display: block; }
  .hd__nav,
  #index-menu,
  #btn-lang,
  /* Detener pasa al menú ⋮ (kebab); no debe quedar suelto en el header. */
  .hd__stop,
  .hd__theme { display: none !important; }

  .composer { padding: 10px 12px calc(14px + var(--safe-bottom)); }
  .composer__hint { display: none; }
  /* 16px evita el autozoom de iOS al enfocar el campo de texto */
  .composer__box textarea { font-size: 16px; }
  .composer__tool, .composer__send { width: var(--tap); height: var(--tap); }

  /* Lightbox: controles dentro de la pantalla y alcanzables con el pulgar */
  .lightbox-prev { left: 2px; } .lightbox-next { right: 2px; }
  .lightbox-close { top: 0; right: 0; }
  .toast-stack { left: max(18px, var(--safe-left)); }
  /* Composer más bajo y despejado: las herramientas sueltas del textbox se agrupan
     en un único menú "+" (btn-composer-more) que despliega un panel flotante con las
     acciones + tema + controles de respuesta. La barra queda [+] [texto] [enviar]. */
  .composer { position: relative; }
  #btn-new-chat-2, #btn-attach, #btn-parts-search, #btn-attach-2 { display: none; }
  .composer__more { display: grid; }
  .composer__more.is-open { color: var(--text); background: var(--surface-3); }
  .composer__more svg { transition: transform .15s var(--ease); }
  .composer__more.is-open svg { transform: rotate(45deg); }

  /* Panel del menú "+" flotando sobre la caja */
  .composer__menu {
    position: absolute; left: max(12px, var(--safe-left)); right: max(12px, var(--safe-right));
    bottom: calc(100% - 6px); z-index: 60; margin: 0;
    flex-direction: column; gap: 4px; padding: 8px;
    background: var(--surface); border: 1px solid var(--border-2);
    border-radius: 14px; box-shadow: var(--shadow-lg);
  }
  .composer__menu.is-open { display: flex; }
  .composer__menu-actions { display: flex; flex-direction: column; gap: 2px; }
  .composer__menu-item {
    display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
    padding: 11px 12px; border: none; border-radius: 10px; cursor: pointer;
    background: none; color: var(--text-2); font: 600 14px/1 var(--ui);
  }
  .composer__menu-item svg { flex: none; color: var(--text-3); }
  .composer__menu-item:hover, .composer__menu-item:active { background: var(--surface-3); color: var(--text); }
  /* Controles de respuesta reubicados dentro del panel: fila estática y visible */
  .composer__menu .composer__controls {
    position: static; display: flex; margin: 4px 2px 2px; padding: 8px 4px 2px;
    gap: 10px; background: none; border: none; box-shadow: none; border-radius: 0;
    border-top: 1px solid var(--hairline);
  }
  .mode-btn span { display: none; }
  .mode-btn { padding: 6px 10px; }
  #length-slider { width: 78px; }
  .length-name { min-width: 40px; font-size: 11px; }
  .thread { padding: 18px 14px 28px; gap: 18px; }

  /* El lector queda deshabilitado por JS en móvil; este respaldo evita
     cualquier desbordamiento si alguna fila quedara en modo lector. */
  .reader__spread { padding: 22px 18px 30px; }
  .reader__bar { flex-wrap: wrap; gap: 8px; padding: 10px 12px; }
  .reader__sub { display: none; }
}

/* ── Diálogo de archivo pesado (pausa de ingesta) ── */
.heavy-overlay {
  position: fixed; inset: 0; z-index: 200;
  display: flex; align-items: center; justify-content: center;
  background: rgba(15,28,45,.45); backdrop-filter: blur(2px);
}
.heavy-dialog {
  width: min(440px, 92vw);
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  padding: 22px 22px 18px; font-family: var(--ui);
}
.heavy-title {
  font-weight: 700; font-size: 1.05rem; color: var(--navy);
  margin-bottom: 10px;
}
.heavy-body p { color: var(--text-2); font-size: .92rem; line-height: 1.45; margin: 8px 0 0; }
.heavy-file {
  font-family: var(--mono); font-size: .82rem;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--r-sm); padding: 7px 10px; word-break: break-word;
}
.heavy-actions { display: flex; flex-direction: column; gap: 8px; margin-top: 18px; }
.heavy-btn {
  width: 100%; padding: 10px 14px; border-radius: var(--r-sm);
  font-family: var(--ui); font-size: .9rem; font-weight: 600;
  cursor: pointer; border: 1px solid var(--border-2);
  background: var(--surface-2); color: var(--text);
  transition: filter .15s var(--ease), background .15s var(--ease);
}
.heavy-btn:hover { filter: brightness(.97); }
.heavy-proceed { background: var(--navy); border-color: var(--navy); color: #fff; }
.heavy-stop { background: transparent; color: var(--danger); border-color: var(--danger-bd); }

/* ============================ CATÁLOGO EN EL CHAT ============================ */
/* Línea de transparencia: el catálogo SQL de partes fue consultado. */
.catalog-badge {
  display: flex; align-items: center; gap: 7px; margin: 10px 0 2px;
  color: var(--text-3); font: 600 11.5px/1.4 var(--ui);
}
.catalog-badge svg { flex: none; opacity: .75; }
.catalog-badge__btn {
  border: 1px solid var(--border-2); background: var(--surface-2); color: var(--link);
  font: 700 11px/1 var(--ui); padding: 4px 9px; border-radius: 999px; cursor: pointer;
  transition: border-color .15s, background .15s;
}
.catalog-badge__btn:hover { border-color: var(--blue); background: var(--cite-bg); }

/* CTA de fallback: ofrecer el buscador del catálogo cuando no hubo respuesta. */
.parts-cta {
  margin: 12px 0 2px; padding: 12px 14px; border-radius: 12px;
  border: 1px dashed var(--border-2); background: var(--surface-2);
}
.parts-cta__hint { color: var(--text-2); font: 500 12.5px/1.5 var(--ui); margin-bottom: 9px; }
.parts-cta__btn { display: inline-flex; align-items: center; gap: 7px; }

/* Modal del buscador de partes (overlay propio, sobre el chat). */
.parts-modal__overlay {
  position: fixed; inset: 0; z-index: calc(var(--z-float, 3000) + 20);
  display: grid; place-items: start center; padding: 9vh 12px 12px;
  background: rgba(10, 22, 36, .45); backdrop-filter: blur(2px);
}
.parts-modal {
  width: 560px; max-width: 100%; max-height: 78vh; display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--border-2); border-radius: var(--r-md, 12px);
  box-shadow: var(--shadow-lg); overflow: hidden;
}
.parts-modal__head {
  display: flex; align-items: center; gap: 8px; padding: 12px 14px;
  border-bottom: 1px solid var(--hairline); background: var(--surface-2);
}
.parts-modal__title { display: inline-flex; align-items: center; gap: 8px; flex: 1;
  font: 800 13.5px/1.2 var(--ui); color: var(--heading); }
.parts-modal__close { flex: none; width: 26px; height: 26px; border: 0; background: transparent;
  color: var(--text-2); font-size: 20px; line-height: 1; cursor: pointer; border-radius: 6px; }
.parts-modal__close:hover { background: var(--surface); }
.parts-modal__input {
  margin: 12px 14px 4px; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--border-2); background: var(--surface); color: var(--text);
  font: 500 14px/1.3 var(--ui); outline: none;
}
.parts-modal__input:focus { border-color: var(--blue); }
.parts-modal__hint { margin: 0 14px 8px; color: var(--text-3); font: 500 11.5px/1.4 var(--ui); }
.parts-modal__results { overflow: auto; padding: 0 8px 10px; display: flex; flex-direction: column; gap: 2px; }
.parts-modal__note { color: var(--text-3); font: 500 12.5px/1.5 var(--ui); padding: 10px 8px; }
.parts-modal__row {
  display: flex; align-items: baseline; gap: 12px; text-align: left; width: 100%;
  border: 0; background: transparent; padding: 9px 10px; border-radius: 9px; cursor: pointer;
  transition: background .12s;
}
.parts-modal__row:hover { background: var(--surface-2); }
.parts-modal__pn { flex: none; font: 700 12.5px/1.2 var(--mono, ui-monospace, monospace); color: var(--link); }
.parts-modal__desc { color: var(--text-2); font: 500 12.5px/1.4 var(--ui); min-width: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ============================ KITS EN EL CHAT ============================ */
.kits-inchat { margin-top: 10px; display: flex; flex-direction: column; gap: 8px; }
.kits-inchat__title {
  display: flex; align-items: center; gap: 8px; font: 800 11px/1 var(--ui);
  letter-spacing: 1.2px; text-transform: uppercase; color: var(--text-3); margin-bottom: 2px;
}
.kits-inchat__title .src-count { font-size: 11px; color: var(--link); background: var(--cite-bg);
  padding: 3px 8px; border-radius: 999px; letter-spacing: 0; }
.kit-card { border: 1px solid var(--border); border-radius: 12px; background: var(--surface); overflow: hidden; }
.kit-card__head {
  display: flex; align-items: center; gap: 9px; width: 100%; text-align: left; cursor: pointer;
  border: 0; background: transparent; padding: 10px 13px; flex-wrap: wrap;
}
.kit-card__head:hover { background: var(--surface-2); }
.kit-card__name { font: 700 13px/1.3 var(--ui); color: var(--heading); }
.kit-card__chips { display: inline-flex; gap: 5px; flex-wrap: wrap; }
.kit-chip {
  font: 700 10.5px/1 var(--ui); color: var(--cite-tx-strong); background: var(--cite-bg);
  border: 1px solid var(--cite-bd); padding: 3px 8px; border-radius: 999px; white-space: nowrap;
}
.kit-card__pn { font: 700 11.5px/1.2 var(--mono, ui-monospace, monospace); color: var(--text-2); }
.kit-card__count { margin-left: auto; font: 600 11.5px/1 var(--ui); color: var(--text-3); white-space: nowrap; }
.kit-card__toggle { color: var(--text-3); font-size: 12px; transition: transform .18s var(--ease); }
.kit-card__head.is-open .kit-card__toggle { transform: rotate(180deg); }
.kit-card__body { padding: 2px 13px 12px; border-top: 1px solid var(--hairline); }
.kit-card__desc { color: var(--text-2); font: 500 12.5px/1.5 var(--ui); margin: 9px 0 2px; }
.kit-card__table { width: 100%; border-collapse: collapse; margin-top: 8px; font: 500 12.5px/1.45 var(--ui); }
.kit-card__table th {
  text-align: left; font: 700 10.5px/1.2 var(--ui); letter-spacing: .6px; text-transform: uppercase;
  color: var(--text-3); padding: 6px 8px; border-bottom: 1px solid var(--border-2);
}
.kit-card__table td { padding: 7px 8px; border-bottom: 1px solid var(--hairline); color: var(--text-2); vertical-align: top; }
.kit-card__table tr:last-child td { border-bottom: 0; }

/* ============================ TÁCTIL (sin puntero con hover) ============================
   En pantallas táctiles no existe hover: lo que en escritorio se revela al
   pasar el ratón debe estar siempre visible, y las micro-elevaciones de
   hover se desactivan para que nada "salte" al tocar. */
@media (hover: none) {
  .hist__del { opacity: 1; }
  .source-card:hover, .sb__new:hover, .row__readbtn:hover, .table-chip:hover,
  .hd__stop:hover, .composer__send.is-ready:hover { transform: none; }
  .source-card.has-preview:hover .source-thumb-overlay { opacity: 0; }
  .source-card.has-preview:hover .source-thumbnail { transform: none; }
  *::-webkit-scrollbar { width: 4px; height: 4px; }
}

/* Respeto a la preferencia del sistema de reducir movimiento */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* ═══════════════════════ TPDialog (ventanas flotantes) ═══════════════════════
   Reemplazo tokenizado de prompt/confirm/alert. Markup en js/ui_dialog.js. */
.tp-dlg-overlay {
  position: fixed; inset: 0; z-index: calc(var(--z-float, 3000) + 10); display: none;
  align-items: center; justify-content: center; background: rgba(8, 16, 28, .5);
  backdrop-filter: blur(2px);
  padding: calc(16px + var(--safe-top)) max(12px, var(--safe-right)) calc(16px + var(--safe-bottom)) max(12px, var(--safe-left));
}
.tp-dlg-overlay.is-open { display: flex; animation: tpDlgFade .15s ease both; }
@keyframes tpDlgFade { from { opacity: 0; } to { opacity: 1; } }
.tp-dlg {
  position: relative;
  width: 100%; max-width: 440px; max-height: 100%; overflow-y: auto;
  background: var(--surface); border: 1px solid var(--border-2); border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg); padding: 20px 22px;
  font: 500 14px/1.5 var(--ui); color: var(--text);
  animation: tpDlgUp .18s var(--ease, ease) both;
}
@keyframes tpDlgUp { from { transform: translateY(10px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }
/* «×» de cierre en la esquina superior derecha (todas las ventanas TPDialog). */
.tp-dlg__close {
  position: absolute; top: 10px; right: 12px; z-index: 1;
  width: 30px; height: 30px; padding: 0; border: 0; border-radius: 8px;
  background: transparent; color: var(--text-3); cursor: pointer;
  font: 400 22px/1 var(--ui); display: flex; align-items: center; justify-content: center;
  transition: background .12s ease, color .12s ease;
}
.tp-dlg__close:hover { background: var(--surface-3); color: var(--text); }
.tp-dlg__title { font: 800 17px/1.25 var(--ui); color: var(--heading); margin-bottom: 6px; padding-right: 28px; }
.tp-dlg__msg { color: var(--text-2); margin-bottom: 14px; white-space: pre-line; }
.tp-dlg__body { display: flex; flex-direction: column; gap: 12px; }
.tp-dlg__field { display: flex; flex-direction: column; gap: 5px; }
.tp-dlg__label { font: 700 12px/1.2 var(--ui); color: var(--text-2); }
.tp-dlg__req { color: var(--danger); }
.tp-dlg__hint { font: 500 11.5px/1.35 var(--ui); color: var(--text-3); }
.tp-dlg__input {
  width: 100%; min-height: 40px; padding: 9px 12px; font: 500 14px/1.4 var(--ui); color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border-2); border-radius: var(--r-sm);
  transition: border-color .15s, box-shadow .15s;
}
textarea.tp-dlg__input { resize: vertical; min-height: 72px; }
.tp-dlg__input:focus { outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent); }
.tp-dlg__input.is-invalid { border-color: var(--danger);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 18%, transparent); }
/* Grupo de checkboxes (field.type = multiselect) */
.tp-dlg__multi { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 6px 12px;
  padding: 8px; border: 1px solid var(--border); border-radius: var(--r-sm); background: var(--surface); }
.tp-dlg__multi.is-invalid { border-color: var(--danger); box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 18%, transparent); }
.tp-dlg__chk { display: flex; align-items: center; gap: 7px; font: 500 12.5px/1.3 var(--ui); color: var(--text-1); cursor: pointer; }
.tp-dlg__chk input { flex: none; width: 15px; height: 15px; accent-color: var(--primary); cursor: pointer; }
.tp-dlg__actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }
.tp-dlg__btn {
  min-height: 40px; padding: 9px 18px; border-radius: var(--r-sm); cursor: pointer;
  font: 700 13.5px/1 var(--ui); color: var(--text); background: var(--surface-2);
  border: 1px solid var(--border-2); transition: background .15s, filter .15s;
}
.tp-dlg__btn:hover { background: var(--surface-3); }
.tp-dlg__btn--primary { color: var(--primary-tx); background: var(--primary); border-color: transparent; }
.tp-dlg__btn--primary:hover { filter: brightness(1.08); background: var(--primary); }
.tp-dlg__btn--danger { color: #fff; background: var(--danger); border-color: transparent; }
.tp-dlg__btn--danger:hover { filter: brightness(1.06); background: var(--danger); }

/* ── Selector de idioma (TPLang, ventana TPDialog.custom) ── */
.tp-dlg__langs { display: flex; flex-direction: column; gap: 8px; }
.tp-dlg__langopt {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
  min-height: 44px; padding: 10px 14px; cursor: pointer;
  font: 600 14px/1.2 var(--ui); color: var(--text); text-align: left;
  background: var(--surface-2); border: 1px solid var(--border-2); border-radius: var(--r-sm);
  transition: background .15s, border-color .15s;
}
.tp-dlg__langopt:hover { background: var(--surface-3); }
.tp-dlg__langopt.is-current {
  border-color: var(--primary); color: var(--primary);
  background: color-mix(in srgb, var(--primary) 10%, var(--surface-2));
}
.tp-dlg__langchk { font-weight: 800; }

/* ── Refuerzo positivo: pulgares sobre imágenes de referencia + guardar validada ── */
.src-thumbs { display: flex; gap: 6px; margin-top: 6px; }
.src-thumb {
  cursor: pointer; line-height: 1; padding: 2px 6px; border-radius: 7px;
  border: 1px solid var(--border-2); background: var(--surface-2);
  font-size: 13px; opacity: .65; transition: opacity .15s, background .15s, transform .1s;
}
.src-thumb:hover { opacity: 1; transform: translateY(-1px); }
.src-thumb-up.is-active { opacity: 1; background: color-mix(in srgb, var(--primary) 18%, var(--surface-2)); border-color: var(--primary); }
.src-thumb-down.is-active { opacity: 1; background: color-mix(in srgb, var(--danger) 16%, var(--surface-2)); border-color: var(--danger); }
.source-reinforce-actions { margin-top: 10px; }
.source-validate-btn {
  cursor: pointer; font: 600 12px/1 var(--ui); padding: 7px 12px; border-radius: 8px;
  color: var(--primary-tx); background: var(--primary); border: 1px solid transparent;
}
.source-validate-btn:hover { filter: brightness(1.07); }