/* =========================================
   Variables
   ========================================= */
:root {
    --primary: #005eff;
    --primary-dark: #0047cc;
    --primary-light: #e7f0ff;
    --primary-lighter: #f8faff;
    --text: #1a1a2e;
    --text-muted: #555;
    --border: #e5e7eb;
    --bg-light: #f9fafb;
    --shadow-mega: 0 20px 50px -12px rgba(0, 0, 0, 0.15);
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =========================================
   Top Bar & Header Base
   ========================================= */
.site-topbar { font-size: 0.82rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
.site-lang-select {
    width: auto !important; min-width: 100px;
    color: var(--border) !important;
    border: 1px solid rgba(255,255,255,0.25) !important;
    background-color: transparent !important;
    border-radius: 20px !important;
    padding: 3px 12px !important;
    cursor: pointer;
}
.site-lang-select option { background: #1a1a2e; color: #fff; }
.site-header { z-index: 1000; }
.site-brand:hover { opacity: 0.85; transition: var(--transition); }
.site-nav-link {
    color: var(--text);
    font-size: 0.92rem;
    font-weight: 500; 
    transition: var(--transition);
    text-decoration: none;
    display: flex;
    align-items: center;
    border-radius: 15px;
    padding: 10px;
    gap: 6px;
}
.site-nav-link:hover, .site-nav-item:hover > .site-nav-link {
    color: var(--primary); background-color: var(--primary-light);
}

/* =========================================
   Mega Menu Desktop
   ========================================= */
.mega-container:dir(ltr) { position: relative; }
.mega-trigger {
    display: flex; align-items: center; gap: 8px; padding: 8px 16px;
    border-radius: var(--radius); text-decoration: none; color: var(--text);
    font-size: 0.92rem; font-weight: 600; transition: var(--transition); cursor: pointer;
}
.mega-trigger:hover { color: var(--primary); background-color: var(--primary-light); }
.mega-trigger .chevron-icon { font-size: 0.6rem; transition: transform 0.3s ease; }
.mega-container:hover .chevron-icon { transform: rotate(180deg); }

.mega-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    margin-top: 12px;
    width: 950px; 
    background: #fff;
    border-radius: var(--radius-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1020;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-mega);
    overflow: hidden;
    border-top: 3px solid var(--primary);
    pointer-events: none;
    max-width: 95vw;
    margin-left: 300px;
}
[dir="rtl"] .mega-dropdown {
    margin-left: 0;
    margin-right: 300px;
    /*left: auto;*/
    /*right: 50%;*/
    /*transform: translateX(50%) translateY(10px);*/
}
.mega-dropdown.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}
/*[dir="rtl"] .mega-dropdown.is-open { transform: translateX(50%) translateY(0); }*/

.mega-grid {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: 450px;
    max-height: 80vh;
    
}

/* ستون سایدبار (سطح ۱) */
.mega-sidebar {
    background: var(--primary-lighter); border-left: 1px solid var(--border);
    overflow-y: auto; padding: 12px;
}
[dir="rtl"] .mega-sidebar { border-left: none; border-right: 1px solid var(--border); }

.category-item {
    display: flex; align-items: center; padding: 12px 16px; border-radius: var(--radius-sm);
    cursor: pointer; transition: var(--transition); margin-bottom: 4px; border: 1px solid transparent;
}
.category-info { display: flex; align-items: center; gap: 12px; flex: 1; }
.cat-icon { font-size: 0.9rem; color: var(--text-muted); transition: var(--transition); }
.category-info span { font-size: 0.9rem; font-weight: 500; color: var(--text); transition: var(--transition); }

.category-item:hover { background: #fff; border-color: var(--border); }
.category-item.active {
    background: #ccd1db;
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 94, 255, 0.3);
}
.category-item.active .category-info span,
.category-item.active .cat-icon { color: #fff; }

/* ستون محتوا (سطح ۲ و ۳) - گرید ۳ ستونه */
.mega-content { overflow-y: auto; padding: 24px; }
.mega-content-panel { display: none; height: 100%; }
.mega-content-panel.active { display: block; animation: fadeIn 0.2s ease; }

.cat2-grid {
    display: grid;
    /*grid-template-columns: repeat(3, 1fr); */
    /*gap: 30px;*/
    grid-template-columns: repeat(3, 1fr); /* ۳ ستون */
    gap: 20px;
    padding: 10px 0;
}

.cat2-col {}
.cat2-title {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 0.95rem; font-weight: 700; color: var(--text); text-decoration: none;
    margin-bottom: 14px; padding-bottom: 10px; border-bottom: 2px solid var(--primary-light);
    transition: var(--transition);
}
.cat2-title i { font-size: 0.7rem; color: var(--primary); transition: var(--transition); }
.cat2-title:hover { color: var(--primary); border-bottom-color: var(--primary); }
.cat2-title:hover i { transform: translateX(-4px); }

.cat3-list { list-style: none; padding: 0; margin: 0; }
.cat3-list li a {
    display: block; padding: 7px 0; font-size: 0.84rem; color: var(--text-muted);
    text-decoration: none; transition: var(--transition); border-bottom: 1px dashed #f0f0f0;
}
.cat3-list li:last-child a { border-bottom: none; }
.cat3-list li a:hover { color: var(--primary); padding-right: 6px; }

.empty-panel-msg, .empty-text { color: #aaa; font-size: 0.85rem; }

/* =========================================
   Hamburger & Mobile Base
   ========================================= */
.site-hamburger {
    display: none; flex-direction: column; justify-content: center; align-items: center;
    width: 44px; height: 44px; background: var(--primary-light); border: none;
    cursor: pointer; gap: 6px; padding: 10px; z-index: 1060; border-radius: var(--radius-sm);
}
.site-hamburger span {
    display: block; width: 22px; height: 2.5px; background: var(--primary);
    border-radius: 4px; transition: var(--transition); transform-origin: center;
}
.site-hamburger.is-active { background: var(--primary); }
.site-hamburger.is-active span:nth-child(1) { transform: translateY(8.5px) rotate(45deg); background: #fff; }
.site-hamburger.is-active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.site-hamburger.is-active span:nth-child(3) { transform: translateY(-8.5px) rotate(-45deg); background: #fff; }

.site-mobile-overlay {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(0, 0, 0, 0.5); z-index: 1040; opacity: 0; visibility: hidden;
    transition: var(--transition); backdrop-filter: blur(4px);
}
.site-mobile-overlay.is-active { opacity: 1; visibility: visible; }

.site-mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 340px;
    max-width: 85vw;
    height: 100vh;
    background: #fff;
    z-index: 1050; transform: translateX(-100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 10px 0 40px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
[dir="rtl"] .site-mobile-menu { left: auto; right: 0; transform: translateX(100%);box-shadow: -10px 0 40px rgba(0, 0, 0, 0.15); }
.site-mobile-menu.is-active { transform: translateX(0) !important; }

.mobile-menu-header { background: var(--primary); padding: 16px 20px; flex-shrink: 0; z-index: 10; display: none;}
.mobile-close-btn {
    width: 36px; height: 36px; border: none; background: rgba(255,255,255,0.2);
    color: #fff; border-radius: 50%; cursor: pointer; display: flex; align-items: center;
    justify-content: center; transition: var(--transition);
}
.mobile-close-btn:hover { background: rgba(255,255,255,0.3); }

.mobile-lang-section {
    display: flex; gap: 8px; padding: 12px 16px; background: #fff;
    border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.mob-lang-btn {
    flex: 1; text-align: center; padding: 8px 0; border-radius: var(--radius-sm);
    font-size: 0.85rem; font-weight: 500; text-decoration: none; color: var(--text-muted);
    background: var(--bg-light); border: 1px solid var(--border); transition: var(--transition);
}
.mob-lang-btn:hover, .mob-lang-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* پنل‌های موبایل */
.mob-panel {
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    display: flex; flex-direction: column; background: #fff;
    transform: translateX(-100%); transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1); z-index: 1;
}
[dir="rtl"] .mob-panel { transform: translateX(100%); }
.mob-panel.active { transform: translateX(0) !important; z-index: 5; }
.mob-main-panel { position: relative; transform: none !important; z-index: 2; }

.mob-panel-header {
    display: flex; align-items: center; gap: 10px; padding: 14px 20px;
    background: var(--bg-light); border-bottom: 1px solid var(--border);
    cursor: pointer; font-size: 0.9rem; font-weight: 600; color: var(--text); flex-shrink: 0;
}
.mob-back-icon { font-size: 0.75rem; }
[dir="rtl"] .mob-back-icon { transform: scaleX(-1); }

.mob-panel-body { flex: 1; overflow-y: auto; padding: 12px; }
.mob-nav-list { list-style: none; padding: 0; margin: 0; }

.mob-nav-item {
    display: flex; justify-content: space-between; align-items: center;
    padding: 14px; border-radius: var(--radius-sm); cursor: pointer;
    transition: var(--transition); font-size: 0.92rem; font-weight: 500;
    color: var(--text); margin-bottom: 4px; border: 1px solid transparent;
}
.mob-nav-item:hover { background: var(--primary-light); color: var(--primary); border-color: var(--primary-light); }
.mob-chevron-icon { font-size: 0.65rem; color: var(--text-muted); }
[dir="rtl"] .mob-chevron-icon { transform: scaleX(-1); }

.mob-simple-link {
    display: block; padding: 14px; border-radius: var(--radius-sm); text-decoration: none;
    font-size: 0.92rem; font-weight: 500; color: var(--text); transition: var(--transition); margin-bottom: 4px;
}
.mob-simple-link:hover { background: var(--primary-light); color: var(--primary); }

/* استایل منوی موبایل برای دسته بندی ها (1 ستون) */
.mob-cat-content { display: none; }
.mob-cat-content.active { display: block; animation: fadeIn 0.2s ease; }
.mob-cats-wrapper { display: flex; flex-direction: column; gap: 24px; padding-top: 8px; } /* 1 ستون عمودی */
.mob-cat2-title {
    display: block; font-size: 0.95rem; font-weight: 700; color: var(--primary);
    margin-bottom: 10px; text-decoration: none; padding-bottom: 8px; border-bottom: 2px solid var(--primary-light);
}
.mob-cat3-list { list-style: none; padding: 0; margin: 0; }
.mob-cat3-list li a {
    display: block; padding: 10px 12px; font-size: 0.88rem; color: var(--text-muted);
    text-decoration: none; border-radius: 6px; transition: var(--transition);
}
.mob-cat3-list li a:hover { background: var(--primary-light); color: var(--primary); }

/* =========================================
   Scrollbars & Animations
   ========================================= */
.mega-sidebar::-webkit-scrollbar, .mega-content::-webkit-scrollbar, .mob-panel-body::-webkit-scrollbar { width: 4px; }
.mega-sidebar::-webkit-scrollbar-thumb, .mega-content::-webkit-scrollbar-thumb, .mob-panel-body::-webkit-scrollbar-thumb { background: #ccc; border-radius: 10px; }
.mega-sidebar, .mega-content, .mob-panel-body { scrollbar-width: thin; scrollbar-color: #ccc transparent; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

/* =========================================
   Responsive Breakpoints
   ========================================= */
@media (min-width: 992px) {
    .site-mobile-menu, .site-mobile-overlay { display: none !important; }
}
@media (max-width: 991px) {
    .site-nav { display: none !important; }
    .site-hamburger { display: flex !important; }
}
@media (max-width: 1100px) and (min-width: 992px) {
    /* اگر صفحه بین 992 تا 1100 بود، مگامنو 2 ستونه شود تا جا نشود */
    .cat2-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .mega-dropdown { width: 800px; }
    .mega-grid { grid-template-columns: 200px 1fr; }
}