:root {
    --umm-width: 1000px;
    --umm-bg: #fff;
    --umm-text: #333;
    --umm-border-color: #eee;
    --umm-hover-bg: #f5f5f5;
    --umm-active-text: #0073aa;
    --umm-radius: 8px;
    --umm-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* --- Menu items anchor point --- */
.menu-item {
    position: relative; /* هر آیتم منو، مرجع مگامنو میشه */
}

/* --- Container --- */
.umm-wrapper {
    position: absolute;
    top: 100%; /* دقیقا زیر آیتم منو */
    right: 0; /* برای RTL */
    left: auto;
    z-index: 99999;
    background: var(--umm-bg);
    border: 1px solid var(--umm-border-color);
    box-shadow: var(--umm-shadow);
    border-radius: var(--umm-radius);
    min-width: 300px;
    width: var(--umm-width);
    max-width: 90vw;
    font-family: inherit;
    color: var(--umm-text);
}
html[dir="ltr"] .umm-wrapper {
    left: 0;
    right: auto;
}

/* --- Inner --- */
.umm-inner {
    display: flex;
    padding: 20px;
    align-items: flex-start;
    direction: inherit; /* احترام به RTL/LTR */
}

/* --- Columns --- */
.umm-col { padding: 0 15px; box-sizing: border-box; }
.umm-col-1 { width: 28%; border-left: 1px solid var(--umm-border-color); }
.umm-col-2 { width: 28%; border-left: 1px solid var(--umm-border-color); }
.umm-col-3 { width: 44%; }
html[dir="ltr"] .umm-col-1, 
html[dir="ltr"] .umm-col-2 { border-left: none; border-right: 1px solid var(--umm-border-color); }

/* --- Lists --- */
.umm-cat-list, .umm-subcat-list {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 400px;
    overflow-y: auto;
}
.umm-cat-list li, .umm-subcat-list li {
    display: flex;
    align-items: center;
    padding: 10px;
    cursor: pointer;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}
.umm-cat-list li i, .umm-cat-list li svg { font-size: 20px; margin-left: 10px; min-width: 22px; }
html[dir="ltr"] .umm-cat-list li i, 
html[dir="ltr"] .umm-cat-list li svg { margin-left: 0; margin-right: 10px; }

.umm-cat-list li:hover, .umm-subcat-list li:hover,
.umm-cat-list li.active, .umm-subcat-list li.active {
    background-color: var(--umm-hover-bg);
    color: var(--umm-active-text);
}

/* --- Products --- */
.umm-product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.umm-product-item {
    position: relative;
    display: block;
    border-radius: var(--umm-radius);
    overflow: hidden;
    aspect-ratio: 1 / 1;
    text-decoration: none;
    color: inherit;
}
.umm-product-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; display:block; }
.umm-product-item:hover img { transform: scale(1.05); }
.umm-product-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px;
    background: linear-gradient(0deg, rgba(0,0,0,0.7) 0%, transparent 100%);
    color: #fff;
    text-align: right;
}
.umm-product-title { font-weight: bold; font-size: 14px; }
.umm-product-meta { font-size: 12px; opacity: 0.9; }
.umm-price { margin-left: 8px; }

/* --- Placeholders & Spinners --- */
.umm-product-grid-placeholder { display: flex; align-items: center; justify-content: center; min-height: 200px; color: #999; }
.umm-spinner { border: 4px solid #f3f3f3; border-top: 4px solid var(--umm-active-text); border-radius: 50%; width: 30px; height: 30px; animation: umm-spin 1s linear infinite; }
@keyframes umm-spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* --- Responsive --- */
@media (max-width: 992px) {
    .umm-wrapper { 
        position: static !important; 
        display: block !important; 
        width: 100%; 
        max-width: 100%; 
        box-shadow: none; 
        border-radius: 0; 
        border: none;
    }
    .umm-inner { flex-direction: column; gap: 10px; }
    .umm-col { width: 100%; border: none !important; border-bottom: 1px solid var(--umm-border-color); padding: 15px 0; }
    .umm-col:last-child { border-bottom: none; }
    .umm-subcat-list, .umm-product-grid { display: none; }
    .umm-cat-list li.active + .umm-subcat-list, 
    .umm-subcat-list li.active + .umm-product-grid { display: block; }
}

@media (max-width: 576px) {
    .umm-product-grid { grid-template-columns: 1fr; }
    .umm-inner { padding: 10px; }
}