.offers-list {
    position: relative;
}

/* затемнение/блокировка */
.offers-list.is-loading::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(243, 237, 236, 0.6);
    backdrop-filter: blur(2px);
    z-index: 10;
}

/* сам loader */
.offers-loader {
    position: absolute;
    top: 200px;
    left: 50%;
    width: 64px;   /* 🔥 в 2 раза больше */
    height: 64px;
    margin: -32px 0 0 -32px;
    border: 4px solid #ddd;
    border-top-color: #333;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
    z-index: 11;
}

.offers-list.is-loading .offers-loader {
    display: block;
}

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