.auth-modal {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 16px;
}

.auth-modal.open {
  opacity: 1;
  pointer-events: auto;
}

.auth-modal-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--bg-primary) 75%, transparent);
}

@supports (backdrop-filter: blur(8px)) {
  .auth-modal-backdrop {
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
  }
}

.auth-modal-container {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  padding: var(--space-10) var(--space-8) var(--space-8);
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition-bounce);
  text-align: center;
}

.auth-modal.open .auth-modal-container {
  transform: translateY(0) scale(1);
}

.auth-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
  background: transparent;
  border: none;
  transition: all var(--transition-fast);
}

html[lang="ar"] .auth-modal-close {
  right: auto;
  left: 16px;
}

.auth-modal-close:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.auth-modal-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--color-primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.auth-modal-title {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.auth-modal-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.5;
}

.auth-google-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  width: 100%;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-inset);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  min-height: 48px;
  box-shadow: var(--shadow-xs);
}

.auth-google-btn:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.auth-google-btn:active {
  transform: translateY(0);
}

.auth-fb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  min-height: 48px;
  margin-top: 8px;
}

.auth-fb-btn:hover {
  background: #f0f2f5;
  border-color: #1877F2;
  box-shadow: 0 0 12px rgba(24,119,242,0.15);
  transform: translateY(-1px);
}

.auth-fb-btn:active {
  transform: translateY(0);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 24px 0;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

.auth-footer-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.auth-guest.hidden,
.auth-user.hidden {
  display: none !important;
}

.auth-user-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  height: 44px;
  padding: 0 14px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  flex-shrink: 0;
}

.auth-current-label {
  font-size: 0.6rem;
  font-weight: 400;
  color: var(--text-muted);
  text-transform: lowercase;
  letter-spacing: 0.5px;
  display: block;
  line-height: 1;
  margin-top: 1px;
}

.auth-user-btn-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  line-height: 1.2;
}

.auth-user-btn:hover {
  background: var(--bg-glass-hover);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.auth-user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.auth-user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 8px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: all var(--transition-normal);
  z-index: 100;
}

html[lang="ar"] .auth-user-dropdown {
  right: auto;
  left: 0;
}

.auth-user-dropdown.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.auth-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
}

.auth-dropdown-item:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.auth-dropdown-item.logout {
  color: var(--color-accent);
}

.auth-dropdown-divider {
  height: 1px;
  background: var(--border-color);
  margin: 6px 0;
}

.auth-dropdown-item.logout:hover {
  background: var(--color-accent-light);
  color: var(--color-accent-hover);
}

.auth-user-wrapper {
  position: relative;
}

.auth-verified-tick { width:18px; height:18px; vertical-align:middle; flex-shrink:0; margin-left:4px; display:inline-block; }

.auth-user-name {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  line-height: 1;
}

/* ---------- IDENTITY SWITCHER OVERLAY ---------- */
.auth-switcher-overlay {
  position: fixed;
  inset: 0;
  z-index: 5000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 16px;
}

.auth-switcher-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.auth-switcher-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
}

@supports (backdrop-filter: blur(8px)) {
  .auth-switcher-backdrop {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
}

.auth-switcher-panel {
  position: relative;
  width: 100%;
  max-width: 380px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.auth-switcher-overlay.open .auth-switcher-panel {
  transform: translateY(0) scale(1);
}

.auth-switcher-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border-color);
}

.auth-switcher-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.auth-switcher-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
  background: transparent;
  border: none;
  font-size: 1.3rem;
  transition: all var(--transition-fast);
}

.auth-switcher-close:hover {
  background: var(--bg-glass);
  color: var(--text-primary);
}

.auth-switcher-body {
  padding: 12px 16px 16px;
}

.auth-switcher-group-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 8px 8px 4px;
}

.auth-switcher-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  margin-bottom: 4px;
}

.auth-switcher-item:hover {
  background: var(--bg-glass-hover);
}

.auth-switcher-item.active {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
  font-weight: 600;
}

.auth-switcher-item.active::after {
  content: '✓';
  margin-left: auto;
  font-size: 0.9rem;
  color: var(--color-primary);
  font-weight: 700;
}

.auth-switcher-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--gradient-primary);
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

.auth-switcher-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.auth-switcher-item-name {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: inherit;
}

.auth-switcher-item .auth-verified-tick,
.auth-switcher-item .org-verified-tick {
  width: 16px;
  height: 16px;
  vertical-align: middle;
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .auth-modal-container {
    padding: 32px 20px 24px;
    border-radius: var(--radius-md);
  }

  .auth-modal-title {
    font-size: 1.2rem;
  }

  .auth-user-btn {
    padding: 0 10px;
    font-size: 0.8rem;
  }

  .auth-modal-icon {
    width: 48px;
    height: 48px;
  }
}