/* ═══════════════════════════════════════════════════════════════════════════
   style.css — Techkey Softphone (Estilo WhatsApp Profesional)
   Diseñado para Móvil, Tablet y Escritorio · Dark Mode · PWA Ready
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
  /* Paleta WhatsApp Dark / Corporativa Techkey */
  --wa-bg:            #0c1317;
  --wa-surface:       #111b21;
  --wa-panel:         #202c33;
  --wa-input-bg:      #2a3942;
  --wa-hover:         #222e35;
  --wa-active:        #2a3942;
  --wa-border:        rgba(134, 150, 160, 0.15);

  --wa-green:         #00a884;
  --wa-green-glow:    rgba(0, 168, 132, 0.3);
  --wa-teal:          #25d366;
  --wa-red:           #f15c6d;
  --wa-red-glow:      rgba(241, 92, 109, 0.3);
  --wa-blue:          #53bdeb;

  --wa-text-primary:   #e9edef;
  --wa-text-secondary: #8696a0;
  --wa-text-muted:     #667781;

  --font-family:      'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono:        'JetBrains Mono', monospace;

  --r-sm:  8px;
  --r-md:  14px;
  --r-lg:  20px;
  --r-full: 9999px;

  --safe-top:    env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

[hidden] {
  display: none !important;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--wa-bg);
  color: var(--wa-text-primary);
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

/* ─── PANTALLA DE LOGIN ─────────────────────────────────────────────────────── */
.screen {
  display: none;
  width: 100%;
  height: 100%;
}
.screen--active {
  display: flex;
}

.login-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: radial-gradient(circle at 50% 20%, #17242c 0%, var(--wa-bg) 70%);
  overflow-y: auto;
}

.login-brand {
  text-align: center;
  margin-bottom: 24px;
}

.brand-badge {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--wa-green) 0%, #008069 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 8px 24px var(--wa-green-glow);
  margin-bottom: 12px;
}

.brand-icon {
  width: 32px;
  height: 32px;
}

.brand-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.brand-subtitle {
  font-size: 0.85rem;
  color: var(--wa-text-secondary);
  margin-top: 4px;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background-color: var(--wa-surface);
  border: 1px solid var(--wa-border);
  border-radius: var(--r-lg);
  padding: 24px;
  box-shadow: 0 12px 36px rgba(0,0,0,0.4);
}

.auth-tabs {
  display: flex;
  background-color: var(--wa-panel);
  padding: 4px;
  border-radius: var(--r-sm);
  margin-bottom: 20px;
}

.auth-tab {
  flex: 1;
  padding: 9px;
  background: none;
  border: none;
  color: var(--wa-text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.auth-tab--active {
  background-color: var(--wa-green);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0, 168, 132, 0.4);
}

/* Quick access chips */
.quick-access {
  margin-bottom: 18px;
  background-color: rgba(255,255,255,0.02);
  padding: 12px;
  border-radius: var(--r-sm);
  border: 1px dashed var(--wa-border);
}

.quick-access__label {
  display: block;
  font-size: 0.75rem;
  color: var(--wa-text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.quick-user-chips {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background-color: var(--wa-panel);
  border: 1px solid var(--wa-border);
  border-radius: var(--r-full);
  color: var(--wa-text-primary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
}

.user-chip:hover {
  background-color: var(--wa-hover);
  border-color: var(--wa-green);
}

.user-chip__avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--wa-green);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-chip__name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.input-group {
  margin-bottom: 14px;
}

.input-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--wa-text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}

.input-wrapper {
  display: flex;
  align-items: center;
  background-color: var(--wa-input-bg);
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  padding: 0 12px;
  transition: border-color 0.2s;
}

.input-wrapper:focus-within {
  border-color: var(--wa-green);
}

.input-icon {
  width: 18px;
  height: 18px;
  color: var(--wa-text-secondary);
  margin-right: 10px;
  flex-shrink: 0;
}

.input-wrapper input {
  width: 100%;
  padding: 11px 0;
  background: none;
  border: none;
  outline: none;
  color: var(--wa-text-primary);
  font-size: 0.9rem;
  font-family: inherit;
}

.form-options {
  margin-bottom: 16px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--wa-text-secondary);
  cursor: pointer;
}

.checkbox-label input {
  accent-color: var(--wa-green);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--r-sm);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn--block {
  width: 100%;
}

.btn--whatsapp {
  background-color: var(--wa-green);
  color: #fff;
  box-shadow: 0 4px 14px var(--wa-green-glow);
}

.btn--whatsapp:hover {
  background-color: #029070;
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--wa-border);
  color: var(--wa-text-primary);
}

.btn--outline:hover {
  background-color: var(--wa-hover);
}

.btn--sm {
  padding: 6px 14px;
  font-size: 0.8rem;
}

.btn__icon-right {
  width: 18px;
  height: 18px;
}

.auth-error-msg {
  margin-top: 14px;
  padding: 10px;
  border-radius: var(--r-sm);
  background-color: rgba(241, 92, 109, 0.15);
  border: 1px solid var(--wa-red);
  color: var(--wa-red);
  font-size: 0.8rem;
  text-align: center;
}

/* ─── ESTRUCTURA PRINCIPAL WHATSAPP ─────────────────────────────────────────── */
.app-layout {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  background-color: var(--wa-bg);
  position: relative;
}

@media (min-width: 768px) {
  .app-layout {
    max-width: 520px;
    margin: 0 auto;
    border-left: 1px solid var(--wa-border);
    border-right: 1px solid var(--wa-border);
    box-shadow: 0 0 50px rgba(0,0,0,0.5);
  }
}

/* Header WhatsApp */
.app-header {
  padding: calc(var(--safe-top) + 12px) 16px 12px;
  background-color: var(--wa-panel);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--wa-border);
  z-index: 10;
}

.my-profile-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.avatar-ring {
  position: relative;
  width: 42px;
  height: 42px;
}

.user-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, #00a884, #005c4b);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  border: 2px solid var(--wa-panel);
}

.status-indicator {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--wa-panel);
}

.status-indicator--online {
  background-color: var(--wa-teal);
  box-shadow: 0 0 8px rgba(37, 211, 102, 0.8);
}

.status-indicator--offline {
  background-color: var(--wa-text-muted);
}

.status-indicator--incall {
  background-color: #f59e0b;
}

.my-info {
  display: flex;
  flex-direction: column;
}

.my-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.my-ext {
  font-size: 0.75rem;
  color: var(--wa-text-secondary);
}

.app-header__right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: none;
  border: none;
  color: var(--wa-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.icon-btn:hover {
  background-color: var(--wa-hover);
  color: var(--wa-text-primary);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

/* Tabs WhatsApp */
.whatsapp-tabs {
  display: flex;
  background-color: var(--wa-panel);
  border-bottom: 1px solid var(--wa-border);
}

.tab-item {
  flex: 1;
  padding: 12px 6px;
  background: none;
  border: none;
  color: var(--wa-text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  position: relative;
  transition: color 0.15s;
}

.tab-item svg {
  width: 20px;
  height: 20px;
}

.tab-item--active {
  color: var(--wa-green);
}

.tab-item--active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 15%;
  right: 15%;
  height: 3px;
  background-color: var(--wa-green);
  border-radius: 3px 3px 0 0;
}

.badge {
  position: absolute;
  top: 6px;
  right: 25%;
  background-color: var(--wa-green);
  color: #fff;
  font-size: 0.65rem;
  padding: 1px 6px;
  border-radius: var(--r-full);
}

.badge--alert {
  background-color: var(--wa-red);
}

/* Cuerpo de las Pestañas */
.app-body {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.tab-pane {
  display: none;
  width: 100%;
  height: 100%;
  flex-direction: column;
}

.tab-pane--active {
  display: flex;
}

/* ─── TAB 1: CONTACTOS / EXTENSIONES ────────────────────────────────────────── */
.search-box {
  padding: 10px 16px;
  background-color: var(--wa-surface);
  border-bottom: 1px solid var(--wa-border);
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  background-color: var(--wa-input-bg);
  border-radius: var(--r-sm);
  padding: 6px 12px;
}

.search-icon {
  width: 16px;
  height: 16px;
  color: var(--wa-text-secondary);
  margin-right: 8px;
}

.search-input-wrapper input {
  width: 100%;
  background: none;
  border: none;
  outline: none;
  color: var(--wa-text-primary);
  font-size: 0.85rem;
  font-family: inherit;
}

.contacts-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.contact-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  transition: background-color 0.15s ease;
}

.contact-card:hover {
  background-color: var(--wa-hover);
}

.contact-card__left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.contact-avatar-box {
  position: relative;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.contact-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #2b3942;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.contact-avatar--active {
  background: linear-gradient(135deg, #128c7e, #075e54);
}

.contact-dot {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--wa-bg);
}

.contact-dot--online {
  background-color: var(--wa-teal);
  box-shadow: 0 0 6px rgba(37, 211, 102, 0.6);
}

.contact-dot--offline {
  background-color: var(--wa-text-muted);
}

.contact-dot--incall {
  background-color: #f59e0b;
}

.contact-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.contact-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--wa-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.contact-status-line {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--wa-text-secondary);
}

.status-text--online {
  color: var(--wa-teal);
  font-weight: 500;
}

.status-text--incall {
  color: #f59e0b;
}

.contact-card__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.action-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background-color: var(--wa-input-bg);
  color: var(--wa-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.action-btn:hover {
  background-color: var(--wa-green);
  color: #fff;
  transform: scale(1.05);
}

.action-btn--photo:hover {
  background-color: var(--wa-blue);
}

.action-btn svg {
  width: 18px;
  height: 18px;
}

/* ─── TAB 2: HISTORIAL DE LLAMADAS ─────────────────────────────────────────── */
.calls-filter-bar {
  padding: 10px 16px;
  background-color: var(--wa-surface);
  border-bottom: 1px solid var(--wa-border);
  display: flex;
  gap: 8px;
}

.chip-filter {
  padding: 5px 14px;
  background-color: var(--wa-input-bg);
  border: 1px solid var(--wa-border);
  border-radius: var(--r-full);
  color: var(--wa-text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
}

.chip-filter--active {
  background-color: rgba(0, 168, 132, 0.2);
  border-color: var(--wa-green);
  color: var(--wa-teal);
}

.calls-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.call-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  transition: background-color 0.15s ease;
}

.call-item:hover {
  background-color: var(--wa-hover);
}

.call-item__left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.call-item__info {
  display: flex;
  flex-direction: column;
}

.call-item__name {
  font-weight: 600;
  font-size: 0.9rem;
}

.call-item__meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--wa-text-secondary);
}

.call-icon--incoming {
  color: var(--wa-teal);
}

.call-icon--outgoing {
  color: var(--wa-blue);
}

.call-icon--missed {
  color: var(--wa-red);
}

.call-item__btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: none;
  color: var(--wa-green);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.call-item__btn:hover {
  background-color: rgba(0, 168, 132, 0.15);
}

/* ─── TAB 3: TECLADO NUMÉRICO (DIALER) ─────────────────────────────────────── */
.dialer-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 16px;
  justify-content: space-between;
  max-width: 360px;
  margin: 0 auto;
}

.dialer-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 14px 0 6px;
}

.dialer-digits {
  font-size: 2.2rem;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--wa-text-primary);
  min-height: 48px;
}

.btn-clear-digit {
  position: absolute;
  right: 10px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  color: var(--wa-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.dialer-subtext {
  text-align: center;
  font-size: 0.8rem;
  color: var(--wa-text-secondary);
  margin-bottom: 12px;
}

.dialpad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.key {
  aspect-ratio: 1;
  max-height: 64px;
  border-radius: 50%;
  background-color: var(--wa-input-bg);
  border: none;
  color: var(--wa-text-primary);
  font-size: 1.5rem;
  font-weight: 600;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.1s ease;
  user-select: none;
}

.key span {
  font-size: 0.6rem;
  font-weight: 500;
  color: var(--wa-text-secondary);
  margin-top: -2px;
}

.key:active {
  background-color: var(--wa-green);
  color: #fff;
  transform: scale(0.95);
}

.dialer-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding-bottom: calc(var(--safe-bottom) + 10px);
}

.btn-call-action {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  cursor: pointer;
  transition: transform 0.15s ease;
}

.btn-call-action:active {
  transform: scale(0.92);
}

.btn-call-action--voice {
  background-color: var(--wa-teal);
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
}

.btn-call-action--video {
  background-color: var(--wa-blue);
  box-shadow: 0 4px 16px rgba(83, 189, 235, 0.4);
}

.btn-call-action svg {
  width: 26px;
  height: 26px;
}

/* ─── TAB 4: GALERÍA DE FOTOS ──────────────────────────────────────────────── */
.photos-header {
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--wa-border);
}

.photos-header h2 {
  font-size: 1rem;
  font-weight: 600;
}

.photos-grid {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
}

.photo-card {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--r-sm);
  overflow: hidden;
  background-color: var(--wa-panel);
  cursor: pointer;
  border: 1px solid var(--wa-border);
}

.photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s ease;
}

.photo-card:hover img {
  transform: scale(1.05);
}

.photo-card-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  padding: 6px 8px;
  font-size: 0.7rem;
  color: #fff;
  display: flex;
  flex-direction: column;
}

/* Estados Vacíos */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
  color: var(--wa-text-secondary);
  height: 100%;
}

.empty-state svg {
  width: 48px;
  height: 48px;
  margin-bottom: 12px;
  opacity: 0.4;
}

.loading-state {
  text-align: center;
  padding: 40px;
  color: var(--wa-text-secondary);
}

/* ─── MODAL LLAMADA ENTRANTE (WHATSAPP CALLING) ─────────────────────────────── */
.modal-call-incoming {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.incoming-backdrop {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, #152c38 0%, #081014 90%);
}

.incoming-dialog {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
  max-width: 360px;
}

.incoming-pulse-wrapper {
  position: relative;
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.incoming-pulse-wave {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background-color: rgba(37, 211, 102, 0.25);
  animation: pulse 2s infinite ease-out;
}

.incoming-pulse-wave--delay {
  animation-delay: 0.7s;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}

.incoming-avatar-big {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00a884, #005c4b);
  color: #fff;
  font-size: 2.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid rgba(255,255,255,0.2);
}

.incoming-tag {
  font-size: 0.85rem;
  color: var(--wa-teal);
  font-weight: 500;
  margin-bottom: 6px;
  display: block;
}

.incoming-caller-name {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.incoming-caller-ext {
  font-size: 0.9rem;
  color: var(--wa-text-secondary);
  margin-bottom: 40px;
  display: block;
}

.incoming-actions {
  display: flex;
  gap: 48px;
}

.call-btn-round {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
}

.call-btn-round svg {
  width: 60px;
  height: 60px;
  padding: 16px;
  border-radius: 50%;
  transition: transform 0.15s ease;
}

.call-btn-round:active svg {
  transform: scale(0.9);
}

.call-btn--decline svg {
  background-color: var(--wa-red);
  box-shadow: 0 4px 16px var(--wa-red-glow);
}

.call-btn--accept svg {
  background-color: var(--wa-teal);
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
}

/* ─── PANTALLA DE LLAMADA ACTIVA ────────────────────────────────────────────── */
.screen-active-call {
  position: fixed;
  inset: 0;
  z-index: 5000;
  background-color: #000;
  display: flex;
  flex-direction: column;
}

.active-video-remote {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.call-audio-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 30%, #172d3a 0%, #0a1318 80%);
  z-index: 2;
}

.audio-avatar-glow {
  position: relative;
  margin-bottom: 20px;
}

.big-avatar {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00a884, #005c4b);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 0 30px var(--wa-green-glow);
}

.call-user-name {
  font-size: 1.7rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.call-user-ext {
  font-size: 0.95rem;
  color: var(--wa-text-secondary);
  margin-bottom: 12px;
}

.call-status-badge {
  font-size: 0.85rem;
  color: var(--wa-teal);
  background: rgba(37, 211, 102, 0.15);
  padding: 4px 12px;
  border-radius: var(--r-full);
  margin-bottom: 12px;
}

.call-timer {
  font-size: 1.2rem;
  font-family: var(--font-mono);
  color: var(--wa-text-primary);
  font-weight: 600;
}

/* Picture in picture local */
.video-local-pip {
  position: absolute;
  top: calc(var(--safe-top) + 20px);
  right: 16px;
  width: 110px;
  height: 155px;
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,0,0,0.6);
  border: 2px solid rgba(255,255,255,0.2);
  z-index: 10;
  background-color: #111;
}

.video-local-pip video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
}

.btn-flip-cam {
  position: absolute;
  bottom: 6px;
  right: 6px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0,0,0,0.6);
  border: none;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.btn-flip-cam svg {
  width: 16px;
  height: 16px;
}

/* In-call photo notification banner */
.in-call-photo-banner {
  position: absolute;
  top: calc(var(--safe-top) + 20px);
  left: 16px;
  background: rgba(17, 27, 33, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid var(--wa-teal);
  border-radius: var(--r-md);
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 20;
  box-shadow: 0 8px 20px rgba(0,0,0,0.5);
  cursor: pointer;
  animation: slideInDown 0.3s ease;
}

@keyframes slideInDown {
  from { transform: translateY(-30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.in-call-photo-thumb {
  width: 44px;
  height: 44px;
  border-radius: var(--r-sm);
  object-fit: cover;
}

.in-call-photo-info {
  display: flex;
  flex-direction: column;
}

.photo-sender {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--wa-teal);
}

.photo-tap-hint {
  font-size: 0.7rem;
  color: var(--wa-text-secondary);
}

.btn-close-banner {
  background: none;
  border: none;
  color: var(--wa-text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px;
}

/* Barra de controles de llamada */
.call-controls-bar {
  position: absolute;
  bottom: calc(var(--safe-bottom) + 24px);
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 10;
  padding: 0 16px;
}

.call-ctrl-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 0.75rem;
}

.call-ctrl-btn svg {
  width: 52px;
  height: 52px;
  padding: 14px;
  border-radius: 50%;
  background: rgba(32, 44, 51, 0.85);
  backdrop-filter: blur(10px);
  transition: all 0.15s ease;
}

.call-ctrl-btn:active svg {
  transform: scale(0.92);
}

.call-ctrl-btn--camera svg {
  background: linear-gradient(135deg, var(--wa-blue), #1e70bf);
  box-shadow: 0 4px 16px rgba(83, 189, 235, 0.4);
}

.call-ctrl-btn--hangup svg {
  background: var(--wa-red);
  box-shadow: 0 4px 16px var(--wa-red-glow);
}

/* ─── MODAL DE FOTO (CÁMARA / GALERÍA) ──────────────────────────────────────── */
.modal-dialog-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background-color: rgba(0,0,0,0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.photo-modal-card {
  width: 100%;
  max-width: 440px;
  background-color: var(--wa-surface);
  border-radius: var(--r-lg);
  border: 1px solid var(--wa-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 16px 40px rgba(0,0,0,0.6);
}

.photo-modal-header {
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--wa-border);
}

.photo-modal-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.btn-close-modal {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--wa-text-secondary);
  cursor: pointer;
}

.photo-preview-area {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  background-color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#camera-live-stream {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-result-preview {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.photo-recipient-select {
  padding: 10px 18px 0;
}

.photo-recipient-select label {
  display: block;
  font-size: 0.75rem;
  color: var(--wa-text-secondary);
  margin-bottom: 4px;
}

.photo-recipient-select select {
  width: 100%;
  background-color: var(--wa-input-bg);
  border: 1px solid var(--wa-border);
  color: var(--wa-text-primary);
  padding: 8px 12px;
  border-radius: var(--r-sm);
  outline: none;
  font-family: inherit;
  font-size: 0.85rem;
}

.photo-caption-input {
  padding: 10px 18px;
}

.photo-caption-input input {
  width: 100%;
  background-color: var(--wa-input-bg);
  border: 1px solid var(--wa-border);
  color: var(--wa-text-primary);
  padding: 9px 12px;
  border-radius: var(--r-sm);
  outline: none;
  font-family: inherit;
  font-size: 0.85rem;
}

.photo-modal-actions {
  padding: 14px 18px 18px;
  background-color: var(--wa-panel);
}

.action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.btn-shutter {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  border: 3px solid #fff;
  background: transparent;
  padding: 3px;
  cursor: pointer;
  transition: transform 0.1s ease;
}

.btn-shutter:active {
  transform: scale(0.92);
}

.btn-shutter-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #fff;
}

/* ─── LIGHTBOX VISOR A PANTALLA COMPLETA ─────────────────────────────────────── */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 20000;
  background-color: rgba(0,0,0,0.92);
  display: flex;
  flex-direction: column;
}

.lightbox-topbar {
  padding: calc(var(--safe-top) + 12px) 16px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0,0,0,0.5);
}

.lightbox-sender {
  font-weight: 700;
  font-size: 0.95rem;
}

.lightbox-date {
  font-size: 0.75rem;
  color: var(--wa-text-secondary);
  display: block;
}

.lightbox-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lightbox-btn {
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-btn svg {
  width: 22px;
  height: 22px;
}

.lightbox-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
  position: relative;
}

.lightbox-body img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--r-sm);
}

.lightbox-caption {
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--wa-text-primary);
  background: rgba(0,0,0,0.6);
  padding: 6px 14px;
  border-radius: var(--r-full);
}

/* ─── TOAST NOTIFICATIONS ──────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  top: calc(var(--safe-top) + 20px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 30000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
  width: 90%;
  max-width: 400px;
}

.toast {
  padding: 10px 16px;
  border-radius: var(--r-sm);
  background-color: var(--wa-panel);
  border: 1px solid var(--wa-border);
  color: var(--wa-text-primary);
  font-size: 0.85rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  animation: toastFadeIn 0.25s ease;
  pointer-events: auto;
  text-align: center;
}

.toast--success {
  border-color: var(--wa-green);
  color: var(--wa-teal);
}

.toast--error {
  border-color: var(--wa-red);
  color: var(--wa-red);
}

@keyframes toastFadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════════════════════════════════════════
   ESTILOS: PANTALLA DE LOGIN SEGURO & TOGGLE CONTRASEÑA
   ═══════════════════════════════════════════════════════════════════════════ */
.auth-card__header {
  text-align: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--wa-border);
}

.auth-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--wa-text-primary);
  margin-bottom: 4px;
}

.auth-card__desc {
  font-size: 0.8rem;
  color: var(--wa-text-secondary);
}

.input-wrapper--password {
  position: relative;
  padding-right: 6px;
}

.btn-toggle-pwd {
  background: none;
  border: none;
  color: var(--wa-text-secondary);
  cursor: pointer;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-sm);
  transition: color 0.15s, background-color 0.15s;
}

.btn-toggle-pwd:hover {
  color: var(--wa-text-primary);
  background-color: var(--wa-hover);
}

.btn-toggle-pwd svg {
  width: 18px;
  height: 18px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   ESTILOS: PESTAÑA DE GESTIÓN DE USUARIOS (PANEL ADMINISTRADOR)
   ═══════════════════════════════════════════════════════════════════════════ */
.admin-panel-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 18px 16px 40px;
  overflow-y: auto;
  height: 100%;
}

.admin-header-card {
  background-color: var(--wa-panel);
  border: 1px solid var(--wa-border);
  border-radius: var(--r-md);
  padding: 16px 20px;
  margin-bottom: 18px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.25);
}

.admin-header-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.admin-header-title-row h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--wa-text-primary);
  margin-bottom: 2px;
}

.admin-subtitle {
  font-size: 0.8rem;
  color: var(--wa-text-secondary);
}

.badge-role {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: var(--r-full);
}

.badge-role--admin {
  background-color: rgba(0, 168, 132, 0.18);
  color: var(--wa-teal);
  border: 1px solid var(--wa-green);
}

.badge-role--user {
  background-color: rgba(134, 150, 160, 0.12);
  color: var(--wa-text-secondary);
  border: 1px solid var(--wa-border);
}

.admin-card {
  background-color: var(--wa-surface);
  border: 1px solid var(--wa-border);
  border-radius: var(--r-md);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.admin-card__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--wa-text-primary);
  margin-bottom: 16px;
}

.admin-card__icon {
  width: 20px;
  height: 20px;
  color: var(--wa-green);
}

.admin-card__header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.admin-card__header-flex .admin-card__title {
  margin-bottom: 0;
}

.admin-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.input-wrapper--select select {
  width: 100%;
  padding: 11px 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--wa-text-primary);
  font-size: 0.88rem;
  font-family: inherit;
  cursor: pointer;
}

.input-wrapper--select select option {
  background-color: var(--wa-panel);
  color: var(--wa-text-primary);
}

.admin-form-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 18px;
}

.admin-users-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.admin-user-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background-color: var(--wa-panel);
  border: 1px solid var(--wa-border);
  border-radius: var(--r-sm);
  transition: all 0.2s ease;
  flex-wrap: wrap;
  gap: 12px;
}

.admin-user-card:hover {
  border-color: rgba(0, 168, 132, 0.4);
  background-color: var(--wa-hover);
}

.admin-user-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--wa-green);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

.admin-user-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--wa-text-primary);
}

.admin-user-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 3px;
  flex-wrap: wrap;
}

.admin-user-username {
  font-size: 0.8rem;
  color: var(--wa-text-muted);
}

.admin-user-ext-badge {
  background-color: rgba(0, 168, 132, 0.15);
  color: var(--wa-teal);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--r-sm);
}

.admin-user-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  color: var(--wa-text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot--online {
  background-color: var(--wa-teal);
  box-shadow: 0 0 6px var(--wa-teal);
}

.status-dot--offline {
  background-color: var(--wa-text-muted);
}

.admin-user-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn--sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

.btn--secondary {
  background-color: var(--wa-input-bg);
  border: 1px solid var(--wa-border);
  color: var(--wa-text-primary);
}

.btn--secondary:hover {
  background-color: var(--wa-hover);
  border-color: var(--wa-text-secondary);
}

.btn--danger {
  background-color: rgba(241, 92, 109, 0.15);
  border: 1px solid var(--wa-red);
  color: var(--wa-red);
}

.btn--danger:hover {
  background-color: var(--wa-red);
  color: #fff;
}

/* ═══════════════════════════════════════════════════════════════════════════
   ESTILOS: MODAL DE RESTABLECIMIENTO DE CONTRASEÑA
   ═══════════════════════════════════════════════════════════════════════════ */
.admin-modal-dialog {
  position: relative;
  background-color: var(--wa-surface);
  border: 1px solid var(--wa-border);
  border-radius: var(--r-md);
  padding: 24px;
  width: 90%;
  max-width: 440px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.7);
  z-index: 20002;
  animation: adminModalPop 0.25s ease;
}

@keyframes adminModalPop {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

.admin-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--wa-border);
  padding-bottom: 12px;
}

.admin-modal-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-modal-title-row h3 {
  font-size: 1.1rem;
  color: var(--wa-text-primary);
  font-weight: 700;
}

.modal-title-icon {
  width: 22px;
  height: 22px;
  color: var(--wa-green);
}

.admin-modal-desc {
  font-size: 0.85rem;
  color: var(--wa-text-secondary);
  margin-bottom: 16px;
}

.admin-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   PWA INSTALL BANNER & BUTTONS
   ═══════════════════════════════════════════════════════════════════════════ */
.install-banner {
  margin-top: 1.25rem;
  background: rgba(0, 168, 132, 0.12);
  border: 1px solid rgba(0, 168, 132, 0.35);
  border-radius: var(--r-md);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  animation: fadeIn 0.3s ease;
}

.install-banner__content {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.install-banner__icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
}

.install-banner__text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.install-banner__text strong {
  font-size: 0.875rem;
  color: var(--wa-text-primary);
  font-weight: 600;
}

.install-banner__text small {
  font-size: 0.75rem;
  color: var(--wa-text-secondary);
}

.btn-install-cta {
  background: var(--wa-green);
  color: #fff;
  border: none;
  border-radius: 20px;
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 2px 8px var(--wa-green-glow);
  transition: background 0.2s ease, transform 0.15s ease;
}

.btn-install-cta:hover {
  background: #008f6f;
  transform: translateY(-1px);
}