/* ═══════════════════════════════════════════════════════════════════════════
   DuoTalk — Sistema de Diseño
   Paleta: Azul noche + acentos en índigo/violeta + verde para activo
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Tokens ──────────────────────────────────────────────────────────────── */
:root {
  --color-bg:          #0A0E1A;
  --color-surface:     #12172A;
  --color-surface-2:   #1A2038;
  --color-border:      rgba(255,255,255,0.08);
  --color-primary:     #6C63FF;
  --color-primary-h:   #5A52E0;
  --color-secondary:   #1A2038;
  --color-accent:      #00D4AA;
  --color-danger:      #FF4D6A;
  --color-warning:     #FFB830;
  --color-text:        #E8EAFF;
  --color-text-muted:  #7B82A8;
  --color-host:        #6C63FF;
  --color-guest:       #00D4AA;

  --font-body:   'Inter', system-ui, sans-serif;
  --font-title:  'Sora', 'Inter', sans-serif;

  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  22px;
  --radius-xl:  32px;

  --shadow-glow: 0 0 40px rgba(108,99,255,0.25);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);

  --transition: 0.2s ease;
}

/* ── Reset ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

/* ── Pantallas ───────────────────────────────────────────────────────────── */
.screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  overflow-y: auto;
}

.screen.active {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

/* ── Pantalla Home ───────────────────────────────────────────────────────── */
#screen-home {
  justify-content: center;
  align-items: center;
  min-height: 100dvh;
}

.home-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  animation: orb-float 8s ease-in-out infinite alternate;
}
.orb-1 { width: 400px; height: 400px; background: #6C63FF; top: -10%; left: -10%;  animation-duration: 9s; }
.orb-2 { width: 300px; height: 300px; background: #00D4AA; bottom: -5%; right: -5%; animation-duration: 11s; }
.orb-3 { width: 250px; height: 250px; background: #FF4D6A; top: 40%; left: 60%;    animation-duration: 7s; }

@keyframes orb-float {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(20px, 30px) scale(1.08); }
}

.home-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;
  padding: 48px 24px;
  width: 100%;
  max-width: 420px;
}

.logo-wrap { text-align: center; }

.logo-icon {
  font-size: 64px;
  margin-bottom: 12px;
  filter: drop-shadow(0 0 24px rgba(108,99,255,0.6));
}

.logo-text {
  font-family: var(--font-title);
  font-size: 48px;
  font-weight: 800;
  background: linear-gradient(135deg, #6C63FF 0%, #00D4AA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.logo-sub {
  margin-top: 10px;
  color: var(--color-text-muted);
  font-size: 15px;
  font-weight: 400;
}

.home-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
}

.home-hint {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ── Botones ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-lg  { padding: 16px 28px; font-size: 16px; border-radius: var(--radius-lg); width: 100%; }
.btn-sm  { padding: 8px 16px;  font-size: 13px; }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(108,99,255,0.4);
}
.btn-primary:hover  { background: var(--color-primary-h); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(108,99,255,0.5); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: var(--color-surface-2);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover { background: var(--color-surface); border-color: var(--color-primary); }

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn-ghost:hover { background: rgba(108,99,255,0.1); }

.btn-danger {
  background: var(--color-danger);
  color: #fff;
}
.btn-danger:hover { filter: brightness(1.1); }

.btn-back {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 14px;
  cursor: pointer;
  padding: 4px 0;
  font-family: var(--font-body);
  transition: color var(--transition);
}
.btn-back:hover { color: var(--color-text); }

.btn-icon { font-size: 18px; }

/* ── Header de pantalla ──────────────────────────────────────────────────── */
.screen-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--color-border);
}
.screen-header h2 {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 700;
}

.screen-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 24px;
  gap: 24px;
  overflow-y: auto;
}
.screen-body.center { align-items: center; }

.screen-desc {
  color: var(--color-text-muted);
  font-size: 14px;
  text-align: center;
}

/* ── Selector de idiomas ─────────────────────────────────────────────────── */
.lang-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.lang-grid {
  display: flex;
  flex-direction: column;
}

.lang-options {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--color-surface); /* Más contraste contra surface-2 */
  border: 1px solid rgba(255,255,255,0.15); /* Borde visible */
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 14px;
  font-weight: 500;
  color: #fff;
}
.lang-option:hover { border-color: rgba(255,255,255,0.3); background: var(--color-surface-2); }
.lang-option.selected { border-color: var(--color-primary); background: var(--color-primary); color: #fff; box-shadow: 0 0 15px rgba(108,99,255,0.3); }
.lang-option.disabled { opacity: 0.3; cursor: not-allowed; pointer-events: none; filter: grayscale(1); }
.lang-flag { font-size: 22px; }

/* ── QR + Código ─────────────────────────────────────────────────────────── */
.qr-container {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-glow);
  display: inline-block;
}
#qr-code canvas, #qr-code img { display: block; }

.room-code-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 32px;
  width: 100%;
}
.room-code-label { font-size: 12px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.room-code {
  font-family: var(--font-title);
  font-size: 40px;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--color-primary);
}

.waiting-indicator {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.pulse-ring {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 0 rgba(0,212,170,0.4);
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(0,212,170,0.4); }
  70%  { box-shadow: 0 0 0 10px rgba(0,212,170,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,212,170,0); }
}

.lang-summary {
  font-size: 14px;
  color: var(--color-text-muted);
  text-align: center;
}

/* ── Input código ────────────────────────────────────────────────────────── */
.code-input {
  width: 100%;
  max-width: 280px;
  text-align: center;
  font-family: var(--font-title);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 20px;
  background: var(--color-surface-2);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text);
  outline: none;
  text-transform: uppercase;
  transition: border-color var(--transition);
}
.code-input:focus { border-color: var(--color-primary); }

/* ── Sesión Activa ───────────────────────────────────────────────────────── */
#screen-session {
  background: var(--color-bg);
}

.session-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.session-info { display: flex; align-items: center; gap: 14px; }
.session-langs { font-family: var(--font-title); font-size: 16px; font-weight: 700; }
.session-timer { font-size: 13px; color: var(--color-text-muted); font-variant-numeric: tabular-nums; }

.bubble-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px 16px 8px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  scroll-behavior: smooth;
  position: relative;
}

.empty-session-msg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 15px;
  pointer-events: none;
  opacity: 0.7;
}
.empty-session-msg .icon {
  font-size: 32px;
  display: block;
  margin-bottom: 12px;
  opacity: 0.5;
}

.bubble {
  max-width: 88%;
  display: flex;
  flex-direction: column;
  gap: 4px;
  animation: bubble-in 0.25s ease;
}
@keyframes bubble-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.bubble.host  { align-self: flex-end; align-items: flex-end; }
.bubble.guest { align-self: flex-start; align-items: flex-start; }

.bubble-original {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.45;
}
.bubble.host  .bubble-original { background: var(--color-host); color: #fff; border-bottom-right-radius: 4px; }
.bubble.guest .bubble-original { background: var(--color-surface-2); border: 1px solid var(--color-border); border-bottom-left-radius: 4px; }

.bubble-translation {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text-muted);
  background: rgba(255,255,255,0.04);
  font-style: italic;
}

.bubble-role {
  font-size: 11px;
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Footer de sesión ────────────────────────────────────────────────────── */
.session-footer {
  padding: 16px 24px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.turn-indicator, .processing-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-warning);
}

.turn-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-warning);
}

.spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid rgba(108,99,255,0.3);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.btn-mic {
  position: relative;
  width: 88px; height: 88px; /* Más grande para mobile */
  border-radius: 50%;
  background: var(--color-primary);
  border: none;
  cursor: pointer;
  font-size: 36px; /* Icono más grande */
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 24px rgba(108,99,255,0.5);
  transition: all var(--transition);
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation; /* Evitar zoom en iOS */
}
.btn-mic:hover  { transform: scale(1.05); box-shadow: 0 6px 32px rgba(108,99,255,0.6); }
.btn-mic.active { background: var(--color-danger); box-shadow: 0 4px 24px rgba(255,77,106,0.5); animation: mic-pulse 0.8s ease infinite; transform: scale(0.95); }
.btn-mic:disabled { opacity: 0.4; cursor: not-allowed; }

@keyframes mic-pulse {
  0%, 100% { box-shadow: 0 4px 24px rgba(255,77,106,0.5); }
  50%       { box-shadow: 0 4px 40px rgba(255,77,106,0.8); }
}

.mic-ring {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid rgba(108,99,255,0.3);
  animation: ring-expand 1.5s ease-out infinite;
  opacity: 0;
}
.btn-mic.active .mic-ring { border-color: rgba(255,77,106,0.4); }
@keyframes ring-expand {
  0%   { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.5); opacity: 0; }
}

.mic-hint {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ── Modales ─────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-overlay.hidden { display: none; }

.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  max-width: 360px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.modal-icon { font-size: 48px; }
.modal h3 { font-family: var(--font-title); font-size: 20px; font-weight: 700; }
.modal p  { color: var(--color-text-muted); font-size: 14px; line-height: 1.55; }

/* ── Countdown bar (suspended) ───────────────────────────────────────────── */
.countdown-bar {
  width: 100%;
  height: 6px;
  background: var(--color-surface-2);
  border-radius: 3px;
  overflow: hidden;
}
.countdown-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 3px;
  transition: width 1s linear;
}
.countdown-text { font-size: 13px; color: var(--color-text-muted); }

/* ── Error ───────────────────────────────────────────────────────────────── */
.error-msg {
  color: var(--color-danger);
  font-size: 13px;
  background: rgba(255,77,106,0.1);
  border: 1px solid rgba(255,77,106,0.2);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  text-align: center;
}

/* ── Utilidades ──────────────────────────────────────────────────────────── */
.hidden  { display: none !important; }
.mt-auto { margin-top: auto; }

/* ── Scrollbar personalizado ─────────────────────────────────────────────── */
::-webkit-scrollbar       { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 380px) {
  .logo-text { font-size: 40px; }
  .room-code { font-size: 32px; }
  .lang-options { grid-template-columns: 1fr 1fr; }
}