.login-preloader {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(4px);
}

.login-preloader[hidden] {
    display: none;
}

.preloader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #263142;
    text-align: center;
}

.preloader-mark {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
    border: 1.5px solid #64748b;
    border-radius: 10px;
    color: #334155;
    font-size: 22px;
    font-weight: 700;
}

.preloader-spinner {
    width: 34px;
    height: 34px;
    margin-bottom: 18px;
    border: 2px solid #d8dee8;
    border-top-color: #334155;
    border-radius: 50%;
    animation: login-spin 0.75s linear infinite;
}

.preloader-content strong {
    font-size: 14px;
    font-weight: 600;
}

.preloader-content small {
    margin-top: 7px;
    color: #7b8494;
    font-size: 11px;
}

@keyframes login-spin {
    to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
    .preloader-spinner { animation-duration: 1.5s; }
}