.second-factor-overlay { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,.55); }
.second-factor-overlay-panel { color: #fff; text-align: center; padding: 24px; }
.second-factor-overlay-panel p { margin: 0 0 20px; font-size: 18px; line-height: 1.6; }
.second-factor-progress { display: flex; justify-content: center; gap: 10px; margin: 20px 0 28px; }
.second-factor-progress span { width: 12px; height: 12px; border-radius: 50%; background: #fff; animation: secondFactorPulse 1.2s infinite ease-in-out; }
.second-factor-progress span:nth-child(2) { animation-delay: .15s; }
.second-factor-progress span:nth-child(3) { animation-delay: .3s; }
.second-factor-overlay button { border: 1px solid #d5deeb; border-radius: 8px; padding: 12px 32px; background: #fff; color: #183451; font: inherit; cursor: pointer; }
@keyframes secondFactorPulse { 0%,80%,100% { opacity: .35; transform: scale(.8); } 40% { opacity: 1; transform: scale(1); } }
@media (prefers-reduced-motion: reduce) { .second-factor-progress span { animation: none; } }