/* ============================================
   Request Loader - لودینگ درخواست‌های سرور
   فقط اگر درخواست بیش از ۱ ثانیه طول بکشد
   ============================================ */

#request-loader {
    position: fixed;
    inset: 0;
    z-index: 99990;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.28);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

#request-loader.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.request-loader-box {
    background: #fff;
    border-radius: 18px;
    padding: 22px 28px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.2);
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 180px;
    direction: rtl;
}

.request-loader-spinner {
    width: 28px;
    height: 28px;
    border: 3px solid #e2e8f0;
    border-top-color: #6366f1;
    border-radius: 50%;
    animation: request-loader-spin 0.7s linear infinite;
    flex-shrink: 0;
}

.request-loader-text {
    font-size: 0.92rem;
    font-weight: 700;
    color: #0f172a;
}

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

@media (prefers-reduced-motion: reduce) {
    .request-loader-spinner {
        animation: none;
        border-top-color: #6366f1;
    }
}