/* ============================================================================
   Buzón interno (Intranet) — bandeja con layout inspirado en Gmail.
   Barra lateral de bandejas + buscador superior + pestañas por tipo + lista
   de mensajes + lector a pantalla completa. Todo con los tokens de
   css/rediseno.css (--c-*, --r-*, --sh-*) para heredar tema oscuro y radios.
   Botones neutros; fondo claro => letra oscura.
   ============================================================================ */

/* ── Estructura general ─────────────────────────────────────────────────── */
#screen-buzon .bz-shell{display:flex;flex:1;min-height:460px;padding:12px 14px 14px;}
#screen-buzon .bz-side{flex:0 0 232px;display:flex;flex-direction:column;gap:14px;min-height:0;padding:14px 10px 12px;background:var(--c-surface);border:1px solid var(--c-line);border-right:none;border-radius:var(--r-lg) 0 0 var(--r-lg);}
#screen-buzon .bz-main{flex:1;min-width:0;display:flex;flex-direction:column;min-height:0;overflow:hidden;background:var(--c-surface);border:1px solid var(--c-line);border-radius:0 var(--r-lg) var(--r-lg) 0;}

/* ── Barra lateral: botón Redactar + bandejas ───────────────────────────── */
#screen-buzon .bz-redactar{display:flex;align-items:center;justify-content:center;gap:8px;height:46px;border:none;border-radius:var(--r-pill);background:var(--c-brand-100);color:var(--c-brand-900);font-size:14px;font-weight:800;cursor:pointer;box-shadow:var(--sh-xs);transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);}
#screen-buzon .bz-redactar:hover{background:var(--c-brand-200);transform:translateY(-1px);}
#screen-buzon .bz-folders{display:flex;flex-direction:column;gap:4px;}
#screen-buzon .bz-folder{display:flex;align-items:center;gap:10px;height:40px;padding:0 14px;margin-right:8px;border:none;background:transparent;border-radius:0 var(--r-pill) var(--r-pill) 0;font-family:inherit;font-size:13.5px;font-weight:600;color:var(--c-ink-soft);cursor:pointer;text-align:left;transition:background var(--dur) var(--ease);}
#screen-buzon .bz-folder:hover{background:var(--c-brand-50);color:var(--c-brand-800);}
#screen-buzon .bz-folder.activa{background:var(--c-brand-100);color:var(--c-brand-900);font-weight:800;}
#screen-buzon .bz-f-ico{flex:0 0 20px;font-size:15px;text-align:center;}
#screen-buzon .bz-f-nom{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
#screen-buzon .bz-f-cnt{font-size:12.5px;font-weight:800;color:var(--c-brand-700);}
#screen-buzon .bz-side-nota{margin:auto 0 0;padding:8px;font-size:11px;line-height:1.55;color:var(--c-ink-faint);}

/* ── Buscador superior (píldora) ────────────────────────────────────────── */
#screen-buzon .bz-topbar{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--c-line-soft);flex-shrink:0;}
#screen-buzon .bz-buscar{flex:1;display:flex;align-items:center;gap:10px;height:44px;padding:0 16px;background:var(--c-surface-3);border:1px solid transparent;border-radius:var(--r-pill);transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);}
#screen-buzon .bz-buscar:focus-within{background:var(--c-surface);border-color:var(--c-line);box-shadow:var(--sh-sm);}
#screen-buzon .bz-lupa{font-size:14px;opacity:.65;}
#screen-buzon .bz-buscar input{flex:1;min-width:0;border:none;background:transparent;outline:none;font-family:inherit;font-size:14px;color:var(--c-ink);}
#screen-buzon .bz-buscar input::placeholder{color:var(--c-ink-faint);}
#screen-buzon .bz-buscar input::-webkit-search-cancel-button{cursor:pointer;}
#screen-buzon .bz-iconbtn{flex:0 0 40px;width:40px;height:40px;border:none;border-radius:50%;background:transparent;font-family:inherit;font-size:18px;color:var(--c-ink-soft);cursor:pointer;transition:background var(--dur) var(--ease);}
#screen-buzon .bz-iconbtn:hover{background:var(--c-surface-3);color:var(--c-ink);}

/* ── Pestañas por tipo (como las categorías de Gmail) ───────────────────── */
#screen-buzon .bz-cats{display:flex;gap:2px;padding:0 10px;background:var(--c-surface);border-bottom:1px solid var(--c-line-soft);overflow-x:auto;flex-shrink:0;}
#screen-buzon .bz-cat{display:flex;align-items:center;gap:7px;padding:11px 14px;border:none;border-bottom:3px solid transparent;margin-bottom:-1px;background:transparent;font-family:inherit;font-size:13px;font-weight:700;color:var(--c-ink-soft);white-space:nowrap;cursor:pointer;transition:color var(--dur) var(--ease),background var(--dur) var(--ease);}
#screen-buzon .bz-cat:hover{background:var(--c-brand-50);color:var(--c-brand-700);}
#screen-buzon .bz-cat.activa{color:var(--c-brand-700);border-bottom-color:var(--c-brand-600);}
#screen-buzon .bz-cat-cnt{background:var(--c-brand-100);color:var(--c-brand-700);border-radius:var(--r-pill);padding:1px 8px;font-size:11px;font-weight:800;}
#screen-buzon .bz-cat.activa .bz-cat-cnt{background:var(--c-brand-600);color:#fff;}

/* ── Barra de conteo / selección / filtro ───────────────────────────────── */
#screen-buzon .bz-barra{display:flex;align-items:center;gap:14px;padding:5px 14px;min-height:42px;background:var(--c-surface);border-bottom:1px solid var(--c-line-soft);flex-shrink:0;}
#screen-buzon .bz-check{display:flex;align-items:center;justify-content:center;width:22px;height:22px;cursor:pointer;}
#screen-buzon .bz-check input{width:16px;height:16px;margin:0;accent-color:var(--c-brand-600);cursor:pointer;}
#screen-buzon .bz-barra.sin-checks .bz-check{visibility:hidden;}
#screen-buzon .bz-conteo{font-size:12.5px;font-weight:600;color:var(--c-ink-soft);}
#screen-buzon .bz-sel-acc{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--c-ink-soft);}
#screen-buzon .bz-chip-mini{height:28px;padding:0 12px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-surface);font-family:inherit;font-size:12px;font-weight:700;color:var(--c-brand-700);cursor:pointer;transition:background var(--dur) var(--ease);}
#screen-buzon .bz-chip-mini:hover{background:var(--c-brand-50);}
#screen-buzon .bz-filtro{margin-left:auto;height:30px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-surface);font-family:inherit;font-size:12.5px;font-weight:700;color:var(--c-ink-soft);cursor:pointer;transition:all var(--dur) var(--ease);}
#screen-buzon .bz-filtro:hover{border-color:var(--c-brand-300);color:var(--c-brand-700);}
#screen-buzon .bz-filtro[aria-pressed="true"]{background:var(--c-brand-600);border-color:var(--c-brand-600);color:#fff;}

/* ── Panel: lista y lector (uno a la vez, como Gmail) ───────────────────── */
#screen-buzon .bz-pane{flex:1;min-height:0;display:flex;}
#screen-buzon .bz-lista{flex:1;min-width:0;overflow:auto;background:var(--c-surface);}
#screen-buzon .bz-lector{display:none;flex:1;min-width:0;overflow:auto;padding:16px 24px 28px;background:var(--c-surface);}
#screen-buzon .bz-pane.bz-leyendo .bz-lista{display:none;}
#screen-buzon .bz-pane.bz-leyendo .bz-lector{display:block;}
#screen-buzon .bz-vacio{padding:44px 20px;text-align:center;color:var(--c-ink-faint);font-size:13.5px;}

/* ── Filas de la lista ──────────────────────────────────────────────────── */
#screen-buzon .bz-item{display:grid;grid-template-columns:24px 20px minmax(130px,215px) 1fr auto auto;align-items:center;gap:10px;padding:8px 14px;background:var(--c-surface);border-bottom:1px solid var(--c-line-soft);font-size:13.5px;color:var(--c-ink);cursor:pointer;transition:background var(--dur) var(--ease);}
#screen-buzon .bz-item:hover{background:var(--c-brand-50);}
#screen-buzon .bz-item.bz-sel{background:var(--c-brand-100);}
#screen-buzon .bz-punto{width:9px;height:9px;border-radius:50%;background:transparent;justify-self:center;}
#screen-buzon .bz-item.bz-nl .bz-punto{background:var(--c-brand-500);}
#screen-buzon .bz-rem{display:flex;align-items:center;gap:7px;min-width:0;font-weight:600;color:var(--c-ink);overflow:hidden;}
#screen-buzon .bz-item.bz-nl .bz-rem{font-weight:800;}
#screen-buzon .bz-rem-txt{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
#screen-buzon .bz-tipo{flex:0 0 auto;font-size:14px;opacity:.9;}
#screen-buzon .bz-linha{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--c-ink-soft);font-weight:500;}
#screen-buzon .bz-item.bz-nl .bz-linha{color:var(--c-ink);}
#screen-buzon .bz-asunto{font-weight:600;color:var(--c-ink);}
#screen-buzon .bz-sep{color:var(--c-ink-faint);margin:0 6px;font-weight:400;}
#screen-buzon .bz-vista{color:var(--c-ink-faint);font-weight:400;}
#screen-buzon .bz-adj{font-size:12px;color:var(--c-ink-faint);justify-self:end;}
#screen-buzon .bz-fecha{min-width:62px;text-align:right;justify-self:end;font-size:12px;color:var(--c-ink-faint);white-space:nowrap;}
#screen-buzon .bz-item.bz-nl .bz-fecha{color:var(--c-ink-soft);font-weight:700;}

/* ── Lector (vista de mensaje) ──────────────────────────────────────────── */
#screen-buzon .bz-lector-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px;}
#screen-buzon .bz-volver{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 15px 0 11px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-surface);font-family:inherit;font-size:13px;font-weight:700;color:var(--c-ink-soft);cursor:pointer;transition:background var(--dur) var(--ease);}
#screen-buzon .bz-volver:hover{background:var(--c-surface-3);color:var(--c-ink);}
#screen-buzon .bz-lector-tipo{font-size:12px;font-weight:700;color:var(--c-brand-700);background:var(--c-brand-50);border-radius:var(--r-pill);padding:5px 13px;}
#screen-buzon .bz-lector-asunto{margin:0 0 16px;font-family:var(--font-head);font-size:clamp(17px,2vw,21px);font-weight:800;line-height:1.3;color:var(--c-ink);word-break:break-word;}
#screen-buzon .bz-lector-autor{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
#screen-buzon .bz-avatar{flex:0 0 42px;width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--c-brand-600);color:#fff;font-size:15px;font-weight:800;letter-spacing:.5px;}
#screen-buzon .bz-autor-nom{font-size:14px;font-weight:800;color:var(--c-ink);}
#screen-buzon .bz-autor-fecha{font-size:12px;color:var(--c-ink-faint);}
#screen-buzon .bz-destinos{margin-bottom:16px;padding:9px 13px;background:var(--c-surface-2);border:1px solid var(--c-line-soft);border-radius:var(--r-sm);font-size:12.5px;line-height:1.7;color:var(--c-ink-soft);}
#screen-buzon .bz-acciones{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
#screen-buzon .bz-chip{display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 17px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-surface);font-family:inherit;font-size:13px;font-weight:700;color:var(--c-brand-700);cursor:pointer;transition:background var(--dur) var(--ease);}
#screen-buzon .bz-chip:hover{background:var(--c-brand-50);}
#screen-buzon .bz-chip.primario{background:var(--c-brand-600);border-color:var(--c-brand-600);color:#fff;}
#screen-buzon .bz-chip.primario:hover{background:var(--c-brand-700);}
#screen-buzon .bz-texto{white-space:pre-wrap;word-break:break-word;font-size:14px;line-height:1.65;color:var(--c-ink);background:var(--c-surface-2);border:1px solid var(--c-line-soft);border-radius:var(--r-md);padding:16px 18px;}
#screen-buzon .bz-sub{margin:18px 0 6px;font-size:12.5px;font-weight:800;color:var(--c-ink);}
#screen-buzon .bz-kv{border-collapse:collapse;font-size:12.5px;margin-bottom:6px;}
#screen-buzon .bz-kv th{text-align:left;background:var(--c-surface-3);color:var(--c-ink);padding:5px 11px;border:1px solid var(--c-line);}
#screen-buzon .bz-kv td{padding:5px 11px;border:1px solid var(--c-line);color:var(--c-ink);background:var(--c-surface);}

/* ── Redactor (modal) ───────────────────────────────────────────────────── */
.bz-overlay{position:fixed;inset:0;z-index:3000;display:flex;align-items:center;justify-content:center;padding:12px;background:rgba(15,27,51,.5);backdrop-filter:blur(2px);}
.bz-overlay.bz-open{display:flex !important;}
.bz-modal{display:flex;flex-direction:column;width:min(720px,100%);max-height:94vh;background:var(--c-surface);color:var(--c-ink);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-lg);}
.bz-modal-head{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--c-brand-600);color:#fff;font-size:14.5px;font-weight:800;}
.bz-modal-cerrar{flex:0 0 30px;width:30px;height:30px;border:none;border-radius:50%;background:rgba(255,255,255,.18);color:#fff;font-size:14px;cursor:pointer;transition:background var(--dur) var(--ease);}
.bz-modal-cerrar:hover{background:rgba(255,255,255,.34);}
.bz-modal-body{padding:16px;overflow:auto;}
.bz-modal-foot{display:flex;justify-content:flex-end;gap:8px;padding:12px 16px;background:var(--c-surface-2);border-top:1px solid var(--c-line-soft);}
.bz-campo{display:block;margin-bottom:12px;}
.bz-fila{display:flex;gap:10px;flex-wrap:wrap;}
.bz-lbl{display:block;margin-bottom:4px;font-size:12px;font-weight:700;color:var(--c-ink-soft);}
.bz-modal .sub-cfg-input{width:100%;box-sizing:border-box;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-sm);color:var(--c-ink);}
.bz-sel-cuenta{font-weight:600;color:var(--c-ink-faint);}
.bz-dest-lista{max-height:170px;overflow:auto;margin-top:6px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-sm);}
.bz-dest-lista label{display:flex;gap:8px;align-items:center;padding:7px 10px;border-bottom:1px solid var(--c-line-soft);font-size:12.5px;color:var(--c-ink);cursor:pointer;}
.bz-dest-lista label:hover{background:var(--c-brand-50);}
.bz-nota{font-size:11.5px;color:var(--c-ink-faint);}
.bz-error{padding:8px 12px;background:var(--c-danger-bg);border:1px solid var(--c-danger);border-radius:var(--r-sm);font-size:12.5px;font-weight:600;color:var(--c-danger);}

/* ── Campana flotante (abajo a la izquierda: abajo a la derecha está el asistente) ── */
#bz-campana{position:fixed;left:14px;bottom:14px;z-index:900;display:none;align-items:center;gap:2px;padding:6px 11px;background:var(--c-surface);color:var(--c-ink);border:1px solid var(--c-line);border-radius:22px;font-size:18px;line-height:1;cursor:pointer;box-shadow:var(--sh-md);transition:background var(--dur) var(--ease);}
#bz-campana:hover{background:var(--c-brand-50);}
#bz-campana .bz-cnt{display:none;padding:1px 7px;background:var(--c-brand-600);color:#fff;border-radius:10px;font-size:11px;font-weight:800;}
#bz-campana.bz-hay .bz-cnt{display:inline-block;}
#bz-toast{position:fixed;left:14px;bottom:62px;z-index:901;display:none;max-width:min(320px,calc(100vw - 28px));padding:9px 13px;background:var(--c-surface);color:var(--c-ink);border:1px solid var(--c-line);border-left:4px solid var(--c-brand-600);border-radius:var(--r-md);font-size:13px;font-weight:600;box-shadow:var(--sh-lg);cursor:pointer;}

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width:900px){
  #screen-buzon .bz-shell{flex-direction:column;padding:8px;gap:0;}
  #screen-buzon .bz-side{flex:none;flex-direction:row;align-items:center;gap:8px;padding:10px 12px;overflow-x:auto;border-right:1px solid var(--c-line);border-bottom:none;border-radius:var(--r-lg) var(--r-lg) 0 0;}
  #screen-buzon .bz-redactar{flex:0 0 auto;height:38px;padding:0 18px;}
  #screen-buzon .bz-folders{flex-direction:row;gap:6px;}
  #screen-buzon .bz-folder{flex:0 0 auto;height:36px;margin-right:0;padding:0 13px;border-radius:var(--r-pill);}
  #screen-buzon .bz-side-nota{display:none;}
  #screen-buzon .bz-main{border-top:none;border-radius:0 0 var(--r-lg) var(--r-lg);}
}
@media (max-width:768px){
  #screen-buzon .bz-shell{flex:none;min-height:0;}
  #screen-buzon .bz-main{overflow:visible;}
  #screen-buzon .bz-topbar{padding:8px 10px;}
  #screen-buzon .bz-buscar{height:40px;padding:0 13px;}
  #screen-buzon .bz-barra{gap:10px;padding:5px 10px;flex-wrap:wrap;}
  #screen-buzon .bz-filtro{margin-left:0;}
  #screen-buzon .bz-pane,#screen-buzon .bz-lista,#screen-buzon .bz-lector{overflow:visible;}
  #screen-buzon .bz-lector{padding:14px 14px 24px;}
  #screen-buzon .bz-item{grid-template-columns:24px 18px 1fr auto;grid-template-areas:"chk pt rem fec" "chk pt lin lin";row-gap:2px;padding:9px 12px;}
  #screen-buzon .bz-check{grid-area:chk;}
  #screen-buzon .bz-punto{grid-area:pt;}
  #screen-buzon .bz-rem{grid-area:rem;}
  #screen-buzon .bz-fecha{grid-area:fec;min-width:0;}
  #screen-buzon .bz-linha{grid-area:lin;}
  #screen-buzon .bz-adj{display:none;}
  #bz-campana{left:10px;bottom:10px;}
  #bz-toast{left:10px;bottom:58px;}
}

/* ── Correo de bienvenida (solo Administrador): fondo claro => letra oscura, botones neutros ─────────── */
#screen-buzon .bw-modal{max-width:760px;}
#screen-buzon .bw-estado{padding:10px 12px;border-radius:var(--r-md);background:#eef2f6;color:#1d2733;font-weight:700;font-size:13px;}
#screen-buzon .bw-estado.enviada{background:#e3f1e6;color:#173a22;}
#screen-buzon .bw-aviso{padding:9px 12px;border-radius:var(--r-md);background:#fff6dc;color:#4a3a05;font-size:12.5px;line-height:1.5;border:1px solid #ecd9a0;}
#screen-buzon .bw-auto{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--c-ink);cursor:pointer;}
#screen-buzon .bw-asunto{padding:8px 12px;background:#ffffff;color:#14202c;border:1px solid var(--c-line);border-radius:var(--r-md);font-weight:800;}
#screen-buzon .bw-previa{white-space:pre-wrap;word-break:break-word;padding:14px 16px;background:#ffffff;color:#14202c;border:1px solid var(--c-line);border-radius:var(--r-md);font-size:13px;line-height:1.6;max-height:44vh;overflow:auto;}