/* ------- mensajes ------- */
  #mensajes { flex: 1; overflow-y: auto; padding: 22px 18px 10px; scroll-behavior: smooth; }
  .hilo { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
  .hilo:has(.comparacion) { max-width: 1180px; }
  .comparacion { border: 1px solid var(--line); background: var(--surface);
                 border-radius: 12px; padding: 14px; box-shadow: var(--shadow); }
  .comparacioncab { display: flex; justify-content: space-between; flex-wrap: wrap;
                    gap: 6px; margin-bottom: 12px; font-size: 13px; }
  .comparacioncab span { color: var(--muted); }
  .comparaciongrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .comparacionlado { min-width: 0; }
  .comparacionlado .burbuja { max-width: 100%; box-sizing: border-box; }
  .dictamen { margin-top: 12px; padding: 12px 14px; border: 1px solid var(--line);
              background: var(--surface-2); border-radius: 8px; font-size: 13px; }
  .dictamen h3 { margin: 0 0 6px; font-size: 15px; }
  .dictamennota { color: var(--muted); margin: 0 0 8px; }
  .dictamen ul { margin: 5px 0 8px; padding-left: 20px; }
  .dictamenfuentes { display: flex; align-items: center; flex-wrap: wrap; gap: 5px; }
  .dictamenavisos { color: var(--risk); margin-top: 8px; }
  .eleccionhumana { display: flex; align-items: center; flex-wrap: wrap;
                    gap: 6px; border-top: 1px solid var(--line); margin-top: 12px; padding-top: 10px; }
  .eleccionhumana .btn.elegido { border-color: var(--accent); background: var(--accent-soft); }
  .eleccionestado { color: var(--muted); font-size: 12px; }
  @media (max-width: 850px) {
    .comparaciongrid { grid-template-columns: 1fr; }
  }

  .msj { display: flex; flex-direction: column; gap: 4px; }
  .msj .quien { font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em;
                text-transform: uppercase; color: var(--muted); }
  .burbuja { border-radius: 10px; padding: 12px 16px; max-width: 92%; overflow-wrap: break-word; }
  .msj.usuario { align-items: flex-end; }
  .msj.usuario .burbuja { background: var(--accent-soft); }
  .msj.agente .burbuja { background: var(--surface); border: 1px solid var(--line-soft); box-shadow: var(--shadow); }
  .uso { margin-top: 8px; font-family: var(--mono); font-size: 10.5px; color: var(--muted); }
  /* UX de confianza del caché semántico (issue #39): marca + "Volver a analizar" */
  .cachebadge { display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
    margin-top: 10px; padding: 6px 10px; border: 1px solid var(--line);
    border-radius: 8px; background: var(--surface-2); font-size: 11.5px;
    color: var(--muted); }
  .cachebadge .btnreanalizar { border: 1px solid var(--line); background: var(--surface);
    color: var(--accent); border-radius: 6px; padding: 3px 9px; font-size: 11px;
    cursor: pointer; }
  .cachebadge .btnreanalizar:hover { border-color: var(--accent); }
  .cachebadge .btnreanalizar:disabled { opacity: .5; cursor: default; }
  /* errorMessage de ADK (FE-03): se distingue del texto del agente */
  .err-servidor { margin: 6px 0; padding: 8px 10px; border-left: 3px solid #dc2626;
    background: #fef2f2; color: #991b1b; font-size: 13px; border-radius: 4px;
    white-space: pre-wrap; word-break: break-word; }

  /* actividad de herramientas */
  .actividad { display: flex; flex-direction: column; gap: 4px; margin: 2px 0;
               font-family: var(--mono); font-size: 12px; color: var(--muted); }
  .paso { display: flex; gap: 8px; align-items: baseline; }
  .paso .est { flex: none; width: 14px; text-align: center; }
  .paso.corriendo .est::after { content: "◌"; animation: girar 1s linear infinite; display: inline-block; }
  .paso.hecho .est::after { content: "✓"; color: var(--ok); }
  .paso.rechazo .est::after { content: "✗"; color: var(--risk); }
  @keyframes girar { to { transform: rotate(360deg); } }

  /* indicador "procesando": puntos suspensivos animados */
  .pensando { display: flex; gap: 5px; padding: 8px 2px 2px; }
  .pensando span { width: 6px; height: 6px; border-radius: 50%; background: var(--muted);
                   animation: latido 1.2s ease-in-out infinite; }
  .pensando span:nth-child(2) { animation-delay: .2s; }
  .pensando span:nth-child(3) { animation-delay: .4s; }
  @keyframes latido { 0%, 60%, 100% { opacity: .25; transform: translateY(0); }
                      30% { opacity: 1; transform: translateY(-3px); } }
  @media (prefers-reduced-motion: reduce) {
    .paso.corriendo .est::after { animation: none; content: "…"; }
    .pensando span { animation: none; opacity: .5; }
  }

  .cite {
    font-family: var(--mono); font-size: 11.5px; background: var(--accent-soft);
    color: var(--accent); border: 1px solid var(--accent); border-radius: 4px;
    padding: 1px 7px; cursor: pointer; white-space: nowrap; vertical-align: baseline;
  }
  .cite:hover { background: var(--accent); color: var(--ground); }

  /* etiquetas de cita (issue #41): [interpretación] / [a contrario sensu]
     y la marca de paráfrasis sin verificar que agrega la barrera */
  .etq { font-size: .8em; color: var(--muted); border: 1px solid var(--line);
         border-radius: 4px; padding: 0 6px; white-space: nowrap;
         vertical-align: baseline; }
  .etq-aviso { color: var(--risk); border-color: var(--risk);
               background: var(--risk-soft); }

  /* estado vacío */
  #vacio { max-width: 640px; margin: 8vh auto 0; text-align: center; padding: 0 12px;
           display: flex; flex-direction: column; gap: 18px; }
  #vacio h1 { font-family: var(--serif); font-weight: 400; font-size: 1.9rem;
              letter-spacing: -.015em; margin: 0; text-wrap: balance; }
  #vacio p { color: var(--muted); margin: 0; }
  .ejemplos { display: flex; flex-direction: column; gap: 8px; align-items: center; }
  .ejemplo { font: inherit; font-size: 14px; border: 1px solid var(--line);
             background: var(--surface); color: var(--ink); border-radius: 18px;
             padding: 8px 18px; cursor: pointer; max-width: 100%; }
  .ejemplo:hover { border-color: var(--accent); color: var(--accent); }

  .modoaviso { display: flex; align-items: center; justify-content: space-between;
               gap: 12px; padding: 9px 18px; border-bottom: 1px solid var(--line);
               background: var(--surface-2); color: var(--ink); font-size: 13px; }
  .modoaviso[hidden] { display: none; }
  .modoaviso .btn { flex: none; font-size: 12px; padding: 5px 9px; }

  /* ------- composer ------- */
  #composer { flex: none; padding: 10px 18px 8px; background: var(--ground);
              position: relative; }   /* ancla del panel de resultados de Buscar */
  #docchips { max-width: 780px; margin: 0 auto 8px; display: flex; flex-wrap: wrap; gap: 6px; }
  #docchips:empty { display: none; }
  .docchip { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px;
             background: var(--surface); border: 1px solid var(--line);
             border-radius: 14px; padding: 3px 5px 3px 11px; max-width: 100%; }
  .docchip .dnombre { overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
                      max-width: 220px; }
  .docchip small { color: var(--muted); font-family: var(--mono); font-size: 10px; }
  .docchip button { border: none; background: none; cursor: pointer; color: var(--muted);
                    font-size: 12px; padding: 1px 6px; border-radius: 10px; }
  .docchip button:hover { color: var(--risk); background: var(--risk-soft); }
  .adjuntos { margin-top: 6px; font-size: 12px; color: var(--muted); }
  #colchat.dropzona { outline: 2px dashed var(--accent); outline-offset: -12px;
    background: color-mix(in srgb, var(--accent) 7%, transparent); border-radius: 12px; }
  #colchat.dropzona * { pointer-events: none; }
  .cajacomposer { max-width: 780px; margin: 0 auto; background: var(--surface);
                  border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow);
                  display: flex; align-items: flex-end; gap: 8px; padding: 10px 12px; }
  textarea#entrada { flex: 1; border: none; background: none; resize: none; font: inherit;
                     color: var(--ink); max-height: 160px; line-height: 1.45; outline: none; }
  .iconbtn { border: none; background: none; font-size: 1.25rem; cursor: pointer;
             color: var(--muted); padding: 4px 6px; border-radius: 6px; }
  .iconbtn:hover { color: var(--accent); background: var(--surface-2); }
  /* dos acciones explícitas: Buscar (corpus, sin agente) y Consultar (agente) */
  .cajacomposer .acciones { display: flex; gap: 6px; flex: none; }
  #buscar { border-radius: 8px; padding: 8px 12px; font-weight: 600; color: var(--accent);
            border-color: var(--accent-soft); background: var(--surface); }
  #buscar:hover { background: var(--accent-soft); border-color: var(--accent); }
  #buscar:disabled { opacity: .45; cursor: default; }
  #enviar { background: var(--accent); color: var(--ground); border-radius: 8px;
            padding: 8px 14px; font-weight: 700; }
  #enviar:hover { background: var(--accent-2); color: var(--ground); }
  #enviar:disabled { opacity: .45; cursor: default; }
  .ayuda { max-width: 780px; margin: 6px auto 0; font-size: 12px; line-height: 1.4;
           color: var(--muted); text-align: center; }
  .pie { max-width: 780px; margin: 6px auto 0; font-family: var(--mono); font-size: 10.5px;
         color: var(--muted); text-align: center; }
  @media (max-width: 540px) {
    .comparacion { padding: 10px; }
    .modoaviso { flex-wrap: wrap; padding: 8px 12px; }
    .cajacomposer { gap: 6px; padding: 8px 10px; }
    .cajacomposer .acciones { gap: 4px; }
    #buscar, #enviar { padding: 8px 10px; font-size: 13px; }
    .ayuda { font-size: 11.5px; }
  }

  /* ------- resultados de Buscar (panel flotante sobre el composer) ------- */
  #buscador { position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
              width: min(100% - 36px, 780px); margin-bottom: 2px; z-index: 45;
              background: var(--surface); border: 1px solid var(--line);
              border-radius: 12px; box-shadow: var(--shadow); overflow: hidden;
              display: flex; flex-direction: column; max-height: min(48vh, 430px); }
  #buscador[hidden] { display: none; }
  #buscadorlista { overflow-y: auto; padding: 6px; display: flex;
                   flex-direction: column; gap: 2px; }
  .busqitem { font: inherit; text-align: left; cursor: pointer; border: none;
              background: none; color: var(--ink); border-radius: 8px;
              padding: 7px 10px; display: flex; flex-direction: column; gap: 2px; }
  .busqitem:hover, .busqitem:focus-visible { background: var(--surface-2); }
  .busqcarat { font-size: 13.5px; line-height: 1.35; overflow-wrap: anywhere;
               display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
               overflow: hidden; }
  .busqmeta { font-family: var(--mono); font-size: 10.5px; color: var(--muted); }
  .busqvacio { color: var(--muted); font-size: 13px; text-align: center;
               padding: 12px 8px; margin: 0; }
  .buscadorpie { flex: none; margin: 0; padding: 6px 12px; border-top: 1px solid var(--line);
                 background: var(--surface-2); font-family: var(--mono); font-size: 10.5px;
                 color: var(--muted); text-align: center; display: flex; flex-direction: column;
                 align-items: center; gap: 6px; }
  .busqcta { font: inherit; font-family: var(--sans); font-size: 12.5px; cursor: pointer;
             border: 1px solid var(--accent-soft); background: var(--surface); color: var(--accent);
             border-radius: 8px; padding: 5px 12px; font-weight: 600; }
  .busqcta:hover { background: var(--accent-soft); border-color: var(--accent); }
  .busqcta[hidden] { display: none; }

  /* ------- panel documento ------- */
  #panel { width: 0; flex: none; background: var(--surface); border-left: 1px solid var(--line);
           display: flex; flex-direction: column; min-width: 0; overflow: hidden;
           transition: width .18s ease; }
  #panel.abierto { width: min(46vw, 560px); }
  @media (prefers-reduced-motion: reduce) { #panel { transition: none; } }
  .panelcab { padding: 14px 16px 10px; border-bottom: 1px solid var(--line-soft);
              display: flex; flex-direction: column; gap: 6px; flex: none; }
  .panelcab .fila1 { display: flex; align-items: baseline; gap: 10px; }
  .panelcab .sigla { font-family: var(--mono); font-size: 13px; color: var(--accent); flex: 1; }
  .cerrar { border: none; background: none; font-size: 1.1rem; color: var(--muted); cursor: pointer; }
  .panelcab .carat { font-weight: 650; font-size: 14px; line-height: 1.35; }
  .panelcab .meta { font-size: 12.5px; color: var(--muted); }
  .trib { display: inline-block; font-family: var(--mono); font-size: 10.5px;
          background: var(--surface-2); border-radius: 3px; padding: 1px 7px; margin-right: 6px; }
  .acciones { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
  .acciones .btn { font-size: 12.5px; padding: 5px 11px; }
  #paneltexto { flex: 1; overflow-y: auto; padding: 16px 18px 40px;
                font-family: var(--serif); font-size: 14.5px; line-height: 1.75;
                white-space: pre-wrap; overflow-x: auto; }
  #paneltexto mark { background: var(--accent-soft); color: var(--ink);
                     border-bottom: 2px solid var(--accent); padding: 1px 0; }

  /* ------- citado por N (citator, issue #13) ------- */
  #panelcitas { flex: none; display: none; border-bottom: 1px solid var(--line-soft);
                background: var(--surface-2); }
  #panelcitas details { padding: 8px 16px; }
  #panelcitas summary { cursor: pointer; font-size: 12.5px; color: var(--muted);
                        list-style: none; user-select: none; }
  #panelcitas summary::-webkit-details-marker { display: none; }
  #panelcitas summary::before { content: "▸"; color: var(--accent); margin-right: 6px;
                                display: inline-block; transition: transform .15s ease; }
  #panelcitas details[open] summary::before { transform: rotate(90deg); }
  #panelcitas summary b { color: var(--accent); font-weight: 650; }
  .citanota { margin: 8px 0 4px; font-size: 11px; line-height: 1.45; color: var(--muted); }
  .citalista { list-style: none; margin: 6px 0 0; padding: 0; max-height: 40vh;
               overflow-y: auto; display: flex; flex-direction: column; gap: 5px; }
  .citalista li { display: flex; align-items: stretch; gap: 6px; }
  .citaitem { flex: 1; min-width: 0; font: inherit; text-align: left; cursor: pointer;
              border: 1px solid var(--line-soft); background: var(--surface);
              color: var(--ink); border-radius: 8px; padding: 7px 10px;
              display: flex; flex-direction: column; gap: 2px; }
  .citaitem:hover { border-color: var(--accent); }
  .citacar { font-size: 12.5px; line-height: 1.3; overflow-wrap: anywhere;
             display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
             overflow: hidden; }
  .citafecha { font-family: var(--mono); font-size: 10.5px; color: var(--muted); }
  .citafuente { flex: none; align-self: center; text-decoration: none; font-size: 15px;
                color: var(--muted); padding: 0 4px; border-radius: 6px; }
  .citafuente:hover { color: var(--accent); background: var(--surface); }
  .citaresto { margin: 6px 0 0; font-size: 11px; color: var(--muted); text-align: center; }