:root {
  --theme-color: #2563eb; /* Valor por defecto, se puede sobreescribir desde JS o body[data-theme] */
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  font-family: sans-serif;
}

#chat-header {
  position: sticky;
  top: 0;
  background: var(--theme-color);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  z-index: 10;
}

#chat-header button {
  background: none;
  border: none;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
}

#chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
  background: #f4f4f4;
}

.message.bot {
  background: #e0e0e0;
  padding: 8px;
  border-radius: 5px;
  margin-bottom: 5px;
}

.message.user {
  background: var(--theme-color);
  color: #fff;
  padding: 8px;
  border-radius: 5px;
  margin-bottom: 5px;
  text-align: right;
}

#chat-input {
  display: flex;
  border-top: 1px solid #ccc;
}

#chat-input input {
  flex: 1;
  padding: 10px;
  border: none;
  outline: none;
}

#chat-input button {
  padding: 10px;
  background: var(--theme-color);
  color: #fff;
  border: none;
  cursor: pointer;
}

#quick-questions {
  margin: 10px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

#quick-questions button {
  background: #fff;
  border: 1px solid var(--theme-color);
  color: var(--theme-color);
  padding: 5px 10px;
  border-radius: 5px;
  cursor: pointer;
}

/* Menú */
#menu-panel {
  display: none;
  position: absolute;
  top: 50px;
  left: 0;
  width: 220px;
  background: #fff;
  border: 1px solid #ccc;
  z-index: 20;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  border-radius: 5px;
  padding: 10px 0;
}

#menu-panel ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

#menu-panel li {
  padding: 10px 15px;
  cursor: pointer;
  color: var(--theme-color);
  font-weight: 500;
  transition: background 0.2s;
}

#menu-panel li:hover {
  background: var(--theme-color);
  color: #fff;
}