/*
  Estilos de la aplicacion de voz.

  Mobile-first: todo se disena primero para pantalla pequena y se ajusta
  despues para escritorio con un @media query. El boton de hablar es
  deliberadamente el unico elemento protagonista de la pantalla.
*/

:root {
  --color-bg: #0f172a;
  --color-bg-elevated: #161f38;
  --color-text: #f1f5f9;
  --color-text-dim: #94a3b8;
  --color-accent: #63b3ed;
  --color-accent-soft: rgba(99, 179, 237, 0.35);
  --color-danger: #f87171;
  --color-danger-soft: rgba(248, 113, 113, 0.35);
  --color-border: #263249;

  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  /* Respeta las zonas seguras en moviles con notch/isla dinamica. */
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

/* ------------------------------------------------------------------ */
/* Login                                                                */
/* ------------------------------------------------------------------ */

.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 32px 28px;
}

.login-title {
  margin: 0 0 4px;
  font-size: 1.5rem;
  font-weight: 600;
  text-align: center;
}

.login-subtitle {
  margin: 0 0 24px;
  color: var(--color-text-dim);
  text-align: center;
  font-size: 0.9rem;
}

.login-error {
  margin: 0 0 16px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--color-danger-soft);
  color: var(--color-danger);
  font-size: 0.85rem;
  text-align: center;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.login-label {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  margin-top: 8px;
}

.login-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
}

.login-input:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.login-button {
  margin-top: 20px;
  padding: 13px;
  border-radius: 10px;
  border: none;
  background: var(--color-accent);
  color: #0b1220;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.login-button:active {
  opacity: 0.85;
}

/* ------------------------------------------------------------------ */
/* Pantalla principal (voice-first)                                    */
/* ------------------------------------------------------------------ */

.app-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logout-link {
  position: fixed;
  top: calc(16px + env(safe-area-inset-top, 0px));
  right: 16px;
  color: var(--color-text-dim);
  font-size: 0.8rem;
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 8px;
}

.logout-link:active {
  background: var(--color-bg-elevated);
}

.app-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 24px;
  width: 100%;
}

.talk-button-wrap {
  position: relative;
  width: min(60vw, 220px);
  height: min(60vw, 220px);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Halo animado detras del boton. Oculto por defecto; cada estado activa su
   propia animacion mediante una clase en el body (ver app.js). */
.talk-halo {
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  opacity: 0;
  transform: scale(0.85);
  pointer-events: none;
}

.talk-button {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: none;
  background: var(--color-bg-elevated);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 0 0 1px var(--color-border);
  transition: background 120ms ease, transform 80ms ease, color 120ms ease;

  /* Evita seleccion de texto, callouts y zoom accidental al pulsar. */
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.mic-icon {
  width: 34%;
  height: 34%;
}

/* --- Estado: listening (boton pulsado, grabando) --- */
body.state-listening .talk-button {
  background: var(--color-accent);
  color: #0b1220;
  transform: scale(0.97);
}

body.state-listening .talk-halo {
  opacity: 1;
  animation: pulse-listening 1.1s ease-out infinite;
}

/* --- Estado: processing (esperando respuesta) --- */
body.state-processing .talk-button {
  color: var(--color-text-dim);
}

body.state-processing .talk-halo {
  opacity: 1;
  background: var(--color-border);
  animation: spin-processing 1s linear infinite;
  border: 3px solid transparent;
  border-top-color: var(--color-accent);
  background: transparent;
}

/* --- Estado: speaking (la IA esta hablando) --- */
body.state-speaking .talk-halo {
  opacity: 1;
  animation: pulse-speaking 1.6s ease-in-out infinite;
}

/* --- Estado: error --- */
body.state-error .talk-button {
  color: var(--color-danger);
  box-shadow: 0 0 0 1px var(--color-danger-soft);
}

@keyframes pulse-listening {
  0% {
    transform: scale(0.9);
    opacity: 0.55;
  }
  100% {
    transform: scale(1.25);
    opacity: 0;
  }
}

@keyframes pulse-speaking {
  0%,
  100% {
    transform: scale(0.95);
    opacity: 0.35;
  }
  50% {
    transform: scale(1.12);
    opacity: 0.7;
  }
}

@keyframes spin-processing {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.status-text {
  margin: 0;
  min-height: 1.2em;
  color: var(--color-text-dim);
  font-size: 0.95rem;
  text-align: center;
  max-width: 320px;
}

body.state-error .status-text {
  color: var(--color-danger);
}

/* ------------------------------------------------------------------ */
/* Escritorio: un poco mas de aire, boton algo mas grande               */
/* ------------------------------------------------------------------ */

@media (min-width: 640px) {
  .talk-button-wrap {
    width: 240px;
    height: 240px;
  }

  .status-text {
    font-size: 1.05rem;
  }
}