/* ===============================
   BASE
================================ */
body {
  background: #0f172a;              /* azul grisáceo oscuro */
  color: #e5e7eb;
}

/* ===============================
   APP CONTENEDOR
================================ */
.app {
  background: #0f172a;
}

/* ===============================
   AVATAR ZONE
================================ */
.avatar-zone {
  background: #0f172a;
}

.assistant-header p {
  color: #cbd5e1;
}

.assistant-header p:last-child {
  color: #60a5fa; /* acento médico */
}

.avatar-box {
  background: #1e293b;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

/* ===============================
   BOTÓN INICIAR
================================ */
.start-btn {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
}

.start-btn:hover {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
}

/* ===============================
   TEMPORIZADOR
================================ */
.session-timer {
  background: #020617;
  color: #93c5fd;
  border-radius: 999px;
  padding: 6px 14px;
}

/* ===============================
   CHAT ZONE
================================ */
.chat-zone {
  background: #020617;
  border-left: 1px solid #1e293b;
}

/* CABECERA CHAT */
.chat-header {
  background: #020617;
  border-bottom: 1px solid #1e293b;
  color: #e5e7eb;
}

.close-chat {
  color: #94a3b8;
}

.close-chat:hover {
  color: #ffffff;
}

/* ===============================
   MENSAJES
================================ */
.chat {
  background: linear-gradient(
    to bottom,
    #020617 0%,
    #020617 100%
  );
}

/* BURBUJAS */
.msg {
  color: #e5e7eb;
}

.msg.bot {
  background: #1e293b;
  border: 1px solid #334155;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.msg.user {
  background: linear-gradient(
    135deg,
    #2563eb,
    #1d4ed8
  );
  color: #ffffff;
}

/* ===============================
   INPUT
================================ */
.input-area {
  background: #020617;
  border-top: 1px solid #1e293b;
}

textarea {
  background: #020617;
  color: #e5e7eb;
  border: 1px solid #334155;
}

textarea::placeholder {
  color: #64748b;
}

#btn {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: white;
}

#btn:disabled {
  background: #334155;
}

/* ===============================
   STATUS
================================ */
.status {
  color: #94a3b8;
}

/* ===============================
   MÓVIL
================================ */
@media (max-width: 900px) {
  .avatar-zone {
    border-bottom: 1px solid #1e293b;
  }
}
.top-bar {
  background: #020617;
  border-bottom: 1px solid #1e293b;
}

.dark-toggle {
  color: #e5e7eb;
  border-color: #334155;
}

.dark-toggle:hover {
  background: #1e293b;
}
@media (max-width: 900px) {
  .top-bar {
    height: 44px;
    padding: 0 12px;
  }

  .dark-toggle {
    font-size: 12px;
    padding: 6px 12px;
  }
}