:root {
  color-scheme: dark;
  --bg: #000;
  --fg: #e8eef5;
  --cyan: #46e6ff;
  --panel: #0e1824;
  --line: #243244;
  --muted: #7a8899;
  --pink: #ff5c8a;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif; overflow: hidden; }

/* Vertical: robot arriba y controles abajo. */
#app { position: relative; height: 100dvh; display: flex; flex-direction: column; align-items: center;
  padding: env(safe-area-inset-top) calc(env(safe-area-inset-right) + 16px)
           calc(env(safe-area-inset-bottom) + 12px) calc(env(safe-area-inset-left) + 16px); }
#stage { position: relative; flex: 1; min-height: 0; width: 100%; max-width: 900px; }
#robot { display: block; width: 100%; height: 100%; touch-action: none; }
#camera { position: absolute; top: 8px; right: 0; width: 96px; aspect-ratio: 4 / 3; object-fit: cover;
  border-radius: 12px; border: 2px solid var(--cyan); transform: scaleX(-1); opacity: .85;
  background: #000; }
#camera[hidden] { display: none; }
#label { position: absolute; bottom: 12%; left: 50%; transform: translateX(-50%); white-space: nowrap;
  background: var(--panel); border: 2px solid var(--cyan); color: var(--cyan);
  padding: 6px 18px; border-radius: 999px; font-weight: 600; }

#controls { width: 100%; max-width: 560px; display: flex; flex-direction: column; align-items: center; }
#caption { min-height: 2.8em; max-height: 6.8em; overflow-y: auto; width: 100%; text-align: center;
  font-size: 1.05rem; line-height: 1.35; margin: 4px 0 10px; }
#chat { display: flex; gap: 8px; width: 100%; }
#chat input { flex: 1; min-width: 0; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--panel); color: var(--fg); font-size: 1rem; }
#toolbar { display: flex; gap: 8px; width: 100%; margin-top: 10px; }
button { font: inherit; }
#chat button, #talk, #login button { border: 0; border-radius: 12px; background: var(--cyan);
  color: #00222b; font-weight: 700; font-size: 1rem; cursor: pointer; }
#chat button { width: 48px; }
#talk { flex: 1; padding: 16px 8px; user-select: none; -webkit-user-select: none; touch-action: none; }
#talk.recording { background: var(--pink); color: #fff; }
.toggle { width: 56px; flex: none; border-radius: 12px; border: 1px solid var(--line); background: var(--panel);
  color: var(--fg); font-size: 1.35rem; cursor: pointer; }
.toggle.on { border-color: var(--cyan); background: #0b3340; box-shadow: 0 0 0 2px rgba(70, 230, 255, .35) inset; }
button:focus-visible, input:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; }
#status { margin-top: 8px; color: var(--muted); font-size: .85rem; }

/* Horizontal con poca altura (celular girado): robot a la izquierda, controles a la derecha. */
@media (orientation: landscape) and (max-height: 600px) {
  #app { flex-direction: row; align-items: stretch; gap: 16px; }
  #stage { max-width: none; }
  #controls { width: min(42vw, 360px); flex: none; justify-content: flex-end; padding-bottom: 4px; }
  #caption { flex: 1; max-height: none; display: flex; align-items: center; justify-content: center; }
  #talk { padding: 12px 8px; }
}

dialog { border: 1px solid var(--line); border-radius: 16px; background: var(--panel); color: var(--fg);
  padding: 24px; width: min(92vw, 360px); }
dialog::backdrop { background: rgba(0, 0, 0, .8); }
#login-form { display: flex; flex-direction: column; gap: 12px; }
#login-form h1 { margin: 0 0 4px; color: var(--cyan); text-align: center; }
#login-form input { padding: 12px; border-radius: 10px; border: 1px solid var(--line); background: #000;
  color: var(--fg); font-size: 1rem; }
#login button { padding: 12px; }
#login-error { color: #ff7b9c; min-height: 1.2em; margin: 0; text-align: center; }

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
}