.site-header{height:var(--header-height);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:var(--z-header);border-bottom:1px solid var(--border-color);background-color:#f5f3ffd9;position:sticky;top:0}.header-container{height:100%;max-width:var(--max-width);padding:0 var(--spacing-lg);justify-content:space-between;align-items:center;margin:0 auto;display:flex}.header-logo{font-family:var(--font-heading);letter-spacing:-.02em;color:var(--text-primary);cursor:pointer;font-size:1.5rem;font-weight:700;text-decoration:none}.logo-accent{color:var(--accent-volt)}.desktop-nav{align-items:center;gap:2rem;height:100%;display:flex}.nav-link{color:var(--text-secondary);transition:color var(--transition-fast);cursor:pointer;align-items:center;gap:.25rem;font-weight:500;display:flex}.nav-link:hover{color:var(--text-primary)}.nav-item{align-items:center;height:100%;display:flex}.chevron{transition:transform var(--transition-fast)}.mega-menu-trigger:hover .chevron{transform:rotate(180deg)}.mega-menu{top:var(--header-height);background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);opacity:0;pointer-events:none;width:100vw;padding:2rem 0;transition:all .2s ease-out;position:absolute;left:0;transform:translateY(-10px);box-shadow:0 10px 30px #00000080}.mega-menu-trigger:hover .mega-menu{opacity:1;pointer-events:auto;transform:translateY(0)}.mega-menu-grid{max-width:var(--max-width);grid-template-columns:1fr 1fr 2fr;gap:2rem;margin:0 auto;padding:0 1.5rem;display:grid}.mega-menu-column h4{font-family:var(--font-heading);color:var(--text-primary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:1rem;font-size:1rem}.mega-menu-column ul{flex-direction:column;gap:.75rem;list-style:none;display:flex}.mega-menu-column a{color:var(--text-secondary);transition:color var(--transition-fast)}.mega-menu-column a:hover{color:var(--accent-volt)}.mega-menu-image{border-radius:var(--radius-md);height:200px;position:relative;overflow:hidden}.mega-menu-image img{object-fit:cover;width:100%;height:100%}.mega-menu-image-overlay{background:linear-gradient(90deg,#000c,#0000);align-items:flex-end;padding:1.5rem;display:flex;position:absolute;inset:0}.mega-menu-image-overlay span{font-family:var(--font-heading);color:var(--accent-volt);font-size:1.5rem;font-weight:700}.header-actions{align-items:center;gap:1rem;display:flex}.icon-btn{color:var(--text-primary);transition:color var(--transition-fast);border-radius:var(--radius-full);justify-content:center;align-items:center;width:40px;height:40px;display:flex}.icon-btn:hover{background-color:var(--bg-tertiary);color:var(--accent-volt)}.cart-btn{position:relative}.cart-badge{background-color:var(--accent-volt);color:var(--bg-primary);border-radius:var(--radius-full);justify-content:center;align-items:center;width:16px;height:16px;font-size:.65rem;font-weight:800;display:flex;position:absolute;top:4px;right:4px}.d-none{display:none!important}@media (width>=768px){.d-md-flex{display:flex!important}}@media (width>=1024px){.d-lg-none{display:none!important}.d-lg-flex{display:flex!important}}.mobile-menu-overlay{top:var(--header-height);width:100%;height:calc(100vh - var(--header-height));background-color:var(--bg-primary);padding:2rem 1.5rem;animation:.3s ease-out forwards slideInRight;position:absolute;left:0}@keyframes slideInRight{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.mobile-nav-group h3{color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:1rem;font-size:.875rem}.mobile-nav-group ul{flex-direction:column;gap:1.5rem;list-style:none;display:flex}.mobile-nav-group a{font-family:var(--font-heading);color:var(--text-primary);font-size:1.5rem}