/* Login / OTP overlay: shown from the Log In or Proceed click until the next page
   loads. Markup in login/index.php and login/auth.php, toggled by
   setLoginOverlay() in login/js/main.js. */
#loginOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
    background: rgba(255, 255, 255, 0.92);
}
#loginOverlay .login-overlay-body {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
#loginOverlay img {
    width: 200px;
    max-width: 60%;
    animation: loginOverlayPulse 1.4s ease-in-out infinite;
}
#loginOverlay .login-overlay-spinner {
    width: 34px;
    height: 34px;
    margin-top: 22px;
    border: 3px solid #d6dde6;
    border-top-color: #2d6aa3;
    border-radius: 50%;
    animation: loginOverlaySpin 0.8s linear infinite;
}
#loginOverlay .login-overlay-text {
    margin-top: 14px;
    font-size: 15px;
    color: #555;
    letter-spacing: 0.3px;
}
@keyframes loginOverlayPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.55; transform: scale(0.96); }
}
@keyframes loginOverlaySpin {
    to { transform: rotate(360deg); }
}