* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: system-ui, sans-serif;
  background: #0b0f14;
  color: #e6edf3;
  height: 100dvh;
  display: flex;
  flex-direction: column;
}

header {
  padding: 10px 14px;
  background: #111820;
  border-bottom: 1px solid #1f2933;
  font-size: 14px;
}

#chat {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mio, .ares {
  max-width: 80%;
  padding: 8px 12px;
  border-radius: 14px;
  font-size: 15px;
  white-space: pre-wrap;
}

.mio { align-self: flex-end; background: #1f6feb; color: #fff; }
.ares { align-self: flex-start; background: #1f2933; }

#caja {
  display: flex;
  gap: 8px;
  padding: 10px;
  background: #111820;
  border-top: 1px solid #1f2933;
}

#texto {
  flex: 1;
  padding: 10px;
  border: 1px solid #1f2933;
  border-radius: 10px;
  background: #0b0f14;
  color: #e6edf3;
}

#caja button {
  padding: 0 16px;
  border: 0;
  border-radius: 10px;
  background: #1f6feb;
  color: #fff;
}