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span:first-child{transform:rotate(45deg) translate(6px,6px)}.hamburger-btn.active span:nth-child(2){opacity:0}.hamburger-btn.active span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}.nav-overlay{left:0;width:100%;background:rgba(0,0,0,.9);z-index:999;opacity:0;transition:opacity .3s;pointer-events:none}.nav-overlay.active{opacity:1;pointer-events:auto}.nav-mobile-container{right:-100%;width:80%;max-width:300px;background:var(--card-bg);z-index:1000;flex-direction:column;padding:80px 20px 20px;overflow-y:auto;transition:right .3s;border-left:1px solid #333;box-shadow:-5px 0 15px rgba(0,0,0,.5)}.nav-mobile-container.active{right:0}.nav-mobile-header{text-align:center;margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid #444}.nav-mobile-header h3{color:var(--neon-main);font-size:1.2rem;text-shadow:0 0 10px var(--neon-main)}.nav-mobile-buttons{display:flex;flex-direction:column;gap:10px}.nav-mobile-buttons .filter-btn{width:100%;text-align:left;padding:15px;border-radius:8px;background:rgba(255,255,255,.05);border:1px solid #333;margin:0}.nav-mobile-buttons .filter-btn.active{background:rgba(255,255,255,.1);border-color:var(--neon-main);box-shadow:0 0 10px var(--neon-main),inset 0 0 10px rgba(255,255,255,.1);position:relative;padding-left:35px}.nav-mobile-buttons .filter-btn.active::before{content:"▶";position:absolute;left:10px;color:var(--neon-main);font-size:.8rem}@media (min-width:768px) and (max-width:991px){.category-nav{flex-wrap:nowrap;overflow-x:auto;padding-bottom:10px;justify-content:flex-start;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:#444 transparent}.category-nav::-webkit-scrollbar{height:6px}.category-nav::-webkit-scrollbar-track{background:0 0}.category-nav::-webkit-scrollbar-thumb{background:#444;border-radius:3px}.category-nav::-webkit-scrollbar-thumb:hover{background:#555}.filter-btn{flex-shrink:0;padding:8px 15px;font-size:.85rem}.filter-btn:nth-last-child(-n+3){display:none}}@media (max-width:767px){.hamburger-btn,.nav-mobile-container{display:flex}.category-nav{display:none}.nav-overlay{display:block}.menu-container{margin-top:20px}.columns-container{top:180px}}@media (max-width:575px){.nav-mobile-container{width:85%}.hamburger-btn{top:15px;right:15px;width:45px;height:45px}.nav-mobile-header{margin-bottom:20px;padding-bottom:15px}.nav-mobile-header h3{font-size:1.1rem}.nav-mobile-buttons .filter-btn{padding:12px;font-size:.85rem}}@media (max-width:375px){.nav-mobile-container{width:90%;padding:70px 15px 15px}.hamburger-btn{top:10px;right:10px;width:40px;height:40px}.hamburger-btn span{width:20px;height:2px}.nav-mobile-buttons .filter-btn{padding:10px;font-size:.8rem}}body.menu-open .columns-container{opacity:.3;filter:blur(2px);transition:.3s}