.auth-loader-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, .45);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s cubic-bezier(.4,0,.2,1);
}

body.active .auth-loader-overlay {
    opacity: 1;
    pointer-events: all;
}

.auth-loader-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    box-shadow: 0 8px 40px rgba(0,0,0,.2);
    transform: translateY(8px) scale(.97);
    transition: transform .3s cubic-bezier(.4,0,.2,1);
}

body.active .auth-loader-box {
    transform: translateY(0) scale(1);
}

.auth-loader-spinner {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    animation: loaderSpin .7s linear infinite;
    position: relative;
}

.auth-loader-spinner::after {
    content: '';
    position: absolute;
    inset: 4px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: rgba(99,102,241,.35);
    animation: loaderSpin 1.1s linear infinite reverse;
}

@keyframes loaderSpin {
    to { transform: rotate(360deg); }
}

.auth-loader-text {
    font-family: var(--font-body);
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: .2px;
}