.single-product .mfn-variations-wrapper .mfn-vr-options[data-atr="pa_razmery"] li a {
    min-width: 44px; min-height: 44px; box-sizing: border-box;
    display: inline-flex !important; align-items: center !important; justify-content: center !important;
    text-align: center !important; vertical-align: middle;
    width: 44px; height: 44px; padding: 0 !important; line-height: 1 !important;
    font-weight: 400; border: 2px solid #a6936d; border-radius: 5px;
}
.single-product .mfn-variations-wrapper .mfn-vr-options[data-atr="pa_razmery"] li.active a {
    background: #826d47 !important; color: #fff !important;
    border-color: #826d47 !important; opacity: 1 !important;
    box-shadow: none; font-weight: 600;
}
.single-product .mfn-variations-wrapper .mfn-vr-options[data-atr="pa_razmery"] a:focus-visible { outline: 3px solid #333; outline-offset: 4px; }
.single-product .mfn-variations-wrapper .mfn-vr-options[data-atr="pa_razmery"] a[aria-disabled="true"] { opacity: .35 !important; cursor: not-allowed; }