/* ============================================================
   ESTILOS DEL WIDGET — los colores se toman de config.js
   vía las variables --cbn-primario y --cbn-secundario.
   ============================================================ */

#cbn-raiz {
  position: fixed;
  bottom: 24px;
  z-index: 99999;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* Burbuja flotante */
#cbn-burbuja {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  font-size: 30px;
  background: linear-gradient(135deg, var(--cbn-primario), var(--cbn-secundario));
  box-shadow: 0 6px 24px rgba(0, 0, 0, .28);
  transition: transform .2s;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
#cbn-burbuja:hover { transform: scale(1.08); }

#cbn-punto {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #2ecc71;
  border: 2px solid #fff;
}

/* Panel del chat */
#cbn-panel {
  position: absolute;
  bottom: 80px;
  width: 372px;
  max-width: calc(100vw - 32px);
  height: 540px;
  max-height: calc(100vh - 120px);
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 12px 48px rgba(0, 0, 0, .30);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: cbn-aparecer .25s ease;
}
@keyframes cbn-aparecer {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.cbn-oculto { display: none !important; }

/* Cabecera */
#cbn-cabecera {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: linear-gradient(135deg, var(--cbn-primario), var(--cbn-secundario));
  color: #fff;
}
#cbn-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}
#cbn-titulo { font-weight: 700; font-size: 16px; }
#cbn-subtitulo { font-size: 12px; opacity: .9; }
#cbn-cerrar {
  margin-left: auto;
  background: none;
  border: none;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  opacity: .85;
}
#cbn-cerrar:hover { opacity: 1; }

/* Mensajes */
#cbn-mensajes {
  flex: 1;
  overflow-y: auto;
  padding: 16px 14px;
  background: #f5f6f8;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cbn-msg {
  max-width: 82%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.45;
  white-space: pre-line;
  word-wrap: break-word;
}
.cbn-bot {
  background: #fff;
  color: #222;
  align-self: flex-start;
  border-bottom-left-radius: 4px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .08);
}
.cbn-usuario {
  background: linear-gradient(135deg, var(--cbn-primario), var(--cbn-secundario));
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}
.cbn-escribiendo { letter-spacing: 3px; animation: cbn-pulso 1s infinite; }
@keyframes cbn-pulso { 50% { opacity: .4; } }

/* Chips de sugerencia */
.cbn-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-self: flex-start;
}
.cbn-chip {
  border: 1.5px solid var(--cbn-primario);
  color: var(--cbn-primario);
  background: #fff;
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 13px;
  cursor: pointer;
  transition: all .15s;
}
.cbn-chip:hover {
  background: var(--cbn-primario);
  color: #fff;
}
.cbn-enlace {
  align-self: flex-start;
  text-decoration: none;
  background: #25D366;
  border-color: #25D366;
  color: #fff;
  font-weight: 700;
}
.cbn-enlace:hover { background: #1EBE5A; border-color: #1EBE5A; }

/* Barra de entrada */
#cbn-entrada {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: #fff;
  border-top: 1px solid #eee;
}
#cbn-texto {
  flex: 1;
  border: 1.5px solid #ddd;
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 14px;
  outline: none;
}
#cbn-texto:focus { border-color: var(--cbn-primario); }
#cbn-enviar, #cbn-mic {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  font-size: 17px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .15s;
}
#cbn-enviar {
  background: linear-gradient(135deg, var(--cbn-primario), var(--cbn-secundario));
  color: #fff;
}
#cbn-mic { background: #eef0f3; }
#cbn-enviar:hover, #cbn-mic:hover { transform: scale(1.08); }
#cbn-mic.cbn-grabando {
  background: #e74c3c;
  animation: cbn-pulso .8s infinite;
}

@media (max-width: 480px) {
  #cbn-panel { width: calc(100vw - 32px); height: 70vh; }
}