:root {
    --header-height: 65px;
    --nav-height: 57px;
}
html {
        scroll-padding-top: calc(var(--header-height) + var(--nav-height) + 16px);
}
body {
    font-family: 'Poppins', sans-serif;
    background-color: #111;
    color: #e0e0e0;
}
.led-glow-text {
    text-shadow: 0 0 5px rgba(0, 255, 255, 0.7), 0 0 10px rgba(0, 255, 255, 0.7);
}
.category-nav {
    scrollbar-width: none;
}
.category-nav::-webkit-scrollbar {
    display: none;
}
.category-btn {
    transition: all 0.3s ease;
    white-space: nowrap;
    border-bottom: 2px solid transparent;
}
.category-btn.active, .category-btn:hover {
    color: #00ffff;
    border-bottom-color: #00ffff;
}
.pulse {
    animation: pulse-animation 1.5s ease-out;
}
@keyframes pulse-animation {
    0% { box-shadow: 0 0 0 0 rgba(255, 0, 150, 0.7); }
    100% { box-shadow: 0 0 0 15px rgba(255, 0, 150, 0); }
}
#cart-items::-webkit-scrollbar { width: 6px; }
#cart-items::-webkit-scrollbar-track { background: #2a2a2a; }
#cart-items::-webkit-scrollbar-thumb { background: #00ffff; border-radius: 10px; }