.site-header{background:var(--neutral-white);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:var(--z-sticky);box-shadow:var(--shadow-sm)}.top-bar{background:var(--neutral-900);color:var(--neutral-white);padding:var(--space-2) 0;font-size:var(--font-size-sm)}.top-bar-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:var(--space-4)}.top-bar-left,.top-bar-right{display:flex;align-items:center;gap:var(--space-6)}.top-bar a{color:var(--neutral-white);transition:color var(--transition-fast)}.top-bar a:hover{color:var(--primary-400)}.top-bar-icon{display:inline-flex;align-items:center;gap:var(--space-2)}.main-header{padding:var(--space-4) 0}.header-content{display:grid;grid-template-columns:auto 1fr auto;gap:var(--space-8);align-items:center}.site-logo{display:flex;align-items:center;gap:var(--space-3);font-family: var(--font-family-heading);font-size:var(--font-size-2xl);font-weight:var(--font-weight-extrabold);color:var(--color-primary);text-decoration:none}.site-logo:hover{color:var(--color-primary-hover)}.logo-icon{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--color-primary),var(--accent-purple));border-radius:var(--radius-lg);color:#fff;font-size:var(--font-size-xl)}.header-search{max-width:600px;width:100%}.header-actions{display:flex;align-items:center;gap:var(--space-4)}.header-action-btn{position:relative;display:flex;flex-direction:column;align-items:center;gap:var(--space-1);padding:var(--space-2);color:var(--color-text-primary);text-decoration:none;transition:all var(--transition-fast);border-radius:var(--radius-md)}.header-action-btn:hover{background:var(--color-bg-secondary);color:var(--color-primary)}.header-action-icon{font-size:24px;position:relative}.header-action-badge{position:absolute;top:-8px;right:-8px;background:var(--accent-orange);color:#fff;font-size:11px;font-weight:var(--font-weight-bold);min-width:18px;height:18px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;padding:0 4px}.header-action-label{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium)}.main-nav{background:var(--color-bg-secondary);border-top:1px solid var(--color-border-light);border-bottom:1px solid var(--color-border-light)}.nav-content{display:flex;align-items:center;justify-content:space-between}.nav-menu{display:flex;gap:var(--space-2);list-style:none;margin:0;padding:0}.nav-item{position:relative}.nav-link{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-4);color:var(--color-text-primary);font-weight:var(--font-weight-medium);text-decoration:none;transition:all var(--transition-fast);border-radius:var(--radius-md)}.nav-link:hover,.nav-link.active{background:var(--neutral-white);color:var(--color-primary)}.nav-link-icon{font-size:18px}.categories-dropdown{position:relative}.categories-trigger{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4);background:var(--color-primary);color:#fff;font-weight:var(--font-weight-semibold);border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.categories-trigger:hover{background:var(--color-primary-hover);box-shadow:var(--shadow-primary)}.categories-icon{font-size:20px}.categories-menu{position:absolute;top: calc(100% + 8px);left:0;background:var(--neutral-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);min-width:280px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all var(--transition-base);z-index:var(--z-dropdown)}.categories-dropdown:hover .categories-menu,.categories-dropdown.active .categories-menu{opacity:1;visibility:visible;transform:translateY(0)}.categories-list{list-style:none;padding:var(--space-2);margin:0}.category-item{border-radius:var(--radius-md);transition:background var(--transition-fast)}.category-item:hover{background:var(--color-bg-secondary)}.category-link{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3);color:var(--color-text-primary);text-decoration:none;transition:all var(--transition-fast)}.category-link:hover{color:var(--color-primary);padding-left:var(--space-4)}.category-icon{font-size:20px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--color-primary-light);color:var(--color-primary);border-radius:var(--radius-md)}.category-info{flex:1}.category-name{font-weight:var(--font-weight-medium);display:block}.category-count{font-size:var(--font-size-xs);color:var(--color-text-muted);display:block;margin-top:2px}.mega-menu{position:absolute;top: calc(100% + 8px);left:0;right:0;background:var(--neutral-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);padding:var(--space-8);opacity:0;visibility:hidden;transform:translateY(-10px);transition:all var(--transition-base);z-index:var(--z-dropdown)}.nav-item:hover .mega-menu{opacity:1;visibility:visible;transform:translateY(0)}.mega-menu-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-8)}.mega-menu-column h4{font-size:var(--font-size-base);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin-bottom:var(--space-4);padding-bottom:var(--space-2);border-bottom:2px solid var(--color-primary)}.mega-menu-links{list-style:none;padding:0;margin:0}.mega-menu-links li{margin-bottom:var(--space-2)}.mega-menu-links a{color:var(--color-text-secondary);text-decoration:none;transition:all var(--transition-fast);display:block;padding:var(--space-2);border-radius:var(--radius-base)}.mega-menu-links a:hover{color:var(--color-primary);background:var(--color-bg-secondary);padding-left:var(--space-3)}.mobile-menu-toggle{display:none;background:none;border:none;font-size:28px;color:var(--color-text-primary);cursor:pointer;padding:var(--space-2)}.site-footer{background:var(--neutral-900);color:var(--neutral-300);margin-top:var(--space-20)}.footer-main{padding:var(--space-16) 0 var(--space-8);border-bottom:1px solid rgba(255,255,255,.1)}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:var(--space-8)}.footer-column h3{color:var(--neutral-white);font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);margin-bottom:var(--space-6)}.footer-about{max-width:400px}.footer-logo{display:flex;align-items:center;gap:var(--space-3);font-family: var(--font-family-heading);font-size:var(--font-size-2xl);font-weight:var(--font-weight-extrabold);color:var(--neutral-white);text-decoration:none;margin-bottom:var(--space-4)}.footer-description{color:var(--neutral-400);line-height:var(--line-height-relaxed);margin-bottom:var(--space-6)}.footer-social{display:flex;gap:var(--space-3)}.social-link{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.1);color:var(--neutral-white);border-radius:var(--radius-md);text-decoration:none;transition:all var(--transition-fast)}.social-link:hover{background:var(--color-primary);transform:translateY(-2px)}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin-bottom:var(--space-3)}.footer-links a{color:var(--neutral-400);text-decoration:none;transition:all var(--transition-fast);display:inline-block}.footer-links a:hover{color:var(--neutral-white);padding-left:var(--space-2)}.footer-newsletter{margin-bottom:var(--space-6)}.footer-newsletter p{color:var(--neutral-400);margin-bottom:var(--space-4)}.newsletter-form{display:flex;gap:var(--space-2)}.newsletter-form input{flex:1;padding:var(--space-3);border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.05);color:var(--neutral-white);border-radius:var(--radius-md);font-size:var(--font-size-sm)}.newsletter-form input::placeholder{color:var(--neutral-500)}.newsletter-form input:focus{outline:none;border-color:var(--color-primary);background:rgba(255,255,255,.1)}.newsletter-form button{padding:var(--space-3) var(--space-6);background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-md);font-weight:var(--font-weight-semibold);cursor:pointer;transition:all var(--transition-fast)}.newsletter-form button:hover{background:var(--color-primary-hover)}.footer-contact-list{list-style:none;padding:0;margin:0}.footer-contact-list li{display:flex;align-items:flex-start;gap:var(--space-3);margin-bottom:var(--space-4);color:var(--neutral-400)}.footer-contact-icon{font-size:20px;color:var(--color-primary);flex-shrink:0}.footer-bottom{padding:var(--space-6) 0}.footer-bottom-content{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:var(--space-4)}.footer-copyright{color:var(--neutral-500);font-size:var(--font-size-sm);text-align:center}.breadcrumbs-section{background:var(--color-bg-secondary);padding:var(--space-4) 0;border-bottom:1px solid var(--color-border)}.page-layout{padding:var(--space-12) 0}.page-layout-sidebar{display:grid;grid-template-columns:400px 1fr;gap:var(--space-8)}.page-layout-sidebar-right{grid-template-columns:1fr 400px}.sidebar{height:fit-content;position:sticky;top: calc(var(--space-16) + 80px)}.sidebar-widget{background:var(--neutral-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);margin-bottom:var(--space-6)}.sidebar-widget:last-child{margin-bottom:0}.sidebar-widget h3{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);margin-bottom:var(--space-4);padding-bottom:var(--space-3);border-bottom:2px solid var(--color-primary)}@media (max-width:1024px){.header-content{grid-template-columns:auto 1fr;gap:var(--space-4)}.header-search{grid-column: 1 / -1}.mega-menu-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}.page-layout-sidebar{grid-template-columns:1fr}.sidebar{position:static}}@media (max-width:768px){.top-bar{display:none}.header-content{grid-template-columns:1fr auto}.site-logo{font-size:var(--font-size-xl)}.header-actions{gap:var(--space-2)}.header-action-label{display:none}.mobile-menu-toggle{display:block}.main-nav{position:fixed;top:0;left:-100%;width:280px;height:100vh;background:var(--neutral-white);z-index:var(--z-modal);transition:left var(--transition-base);overflow-y:auto;box-shadow:var(--shadow-2xl)}.main-nav.active{left:0}.nav-content{flex-direction:column;align-items:stretch;padding:var(--space-6)}.nav-menu{flex-direction:column;gap:0}.nav-link{padding:var(--space-4);border-bottom:1px solid var(--color-border-light)}.categories-dropdown{width:100%}.categories-trigger{width:100%;justify-content:space-between}.categories-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border-top:1px solid var(--color-border);border-radius:0;display:none}.categories-dropdown.active .categories-menu{display:block}.mega-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding:var(--space-4);border-top:1px solid var(--color-border);display:none}.nav-item.active .mega-menu{display:block}.mega-menu-grid{grid-template-columns:1fr;gap:var(--space-4)}.footer-grid{grid-template-columns:1fr}.footer-bottom-content{flex-direction:column;text-align:center}}@media (max-width:480px){.header-action-btn{padding:var(--space-1)}.newsletter-form{flex-direction:column}.newsletter-form button{width:100%}}.mobile-menu-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:calc(var(--z-modal) - 1);opacity:0;transition:opacity var(--transition-base)}.mobile-menu-overlay.active{display:block;opacity:1}.scroll-progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--color-primary),var(--accent-orange));width:0%;z-index:var(--z-max);transition:width .1s ease-out}@media print{.site-header,.main-nav,.site-footer,.header-actions,.breadcrumbs-section{display:none}}