.header{background-color:rgba(9,9,11,.85);border-bottom:1px solid var(--border-subtle);position:sticky;top:0;z-index:100;backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%)}[data-theme=light] .header{background-color:rgba(255,255,255,.85)}.header-content{display:flex;align-items:center;justify-content:space-between;padding:10px 0;gap:var(--space-4)}.header-left{display:flex;align-items:center;gap:var(--space-8)}.mobile-menu-toggle{display:none;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-md);border:1px solid var(--border-color);background:0 0;color:var(--text-primary);cursor:pointer;font-size:1.1rem;transition:all var(--transition-fast)}.mobile-menu-toggle:hover{background:var(--bg-secondary);border-color:var(--border-hover)}.mobile-menu-close{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-md);border:1px solid var(--border-color);background:0 0;color:var(--text-primary);cursor:pointer;font-size:1.1rem;transition:all var(--transition-fast)}.mobile-menu-close:hover{background:var(--bg-secondary);border-color:var(--border-hover)}body.mobile-nav-open{overflow:hidden}.mobile-navigation{display:none}.mobile-nav-backdrop{display:block;position:fixed;inset:0;background:rgba(0,0,0,.5);opacity:0;transition:opacity .25s ease;pointer-events:none;z-index:150;visibility:hidden}body.mobile-nav-open .mobile-nav-backdrop{opacity:1;pointer-events:auto;visibility:visible}.logo h1{font-size:var(--font-size-base);font-weight:600;color:var(--text-primary);letter-spacing:-.03em;text-transform:lowercase;margin:0}.navigation ul{display:flex;list-style:none;gap:var(--space-6);margin:0;padding:0}.nav-link{color:var(--text-muted);text-decoration:none;font-weight:500;font-size:var(--font-size-sm);transition:color var(--transition-fast);cursor:pointer;position:relative;letter-spacing:.02em}.nav-link::after{content:'';position:absolute;bottom:-3px;left:0;width:0;height:1.5px;background:var(--accent-color);transition:width var(--transition-base);border-radius:1px}.nav-link.active,.nav-link:hover{color:var(--text-primary)}.nav-link.active::after,.nav-link:hover::after{width:100%}.header-right{display:flex;align-items:center;gap:var(--space-2)}.cabinet-link{display:flex;align-items:center;justify-content:center;min-width:36px;height:36px;background:0 0;color:var(--text-muted);border-radius:var(--radius-md);text-decoration:none;transition:all var(--transition-fast);border:1px solid var(--border-color);font-size:1rem;padding:0 10px;white-space:nowrap;gap:var(--space-2)}.cabinet-link__name{display:none;font-weight:500;color:var(--text-primary);font-size:var(--font-size-sm);margin-left:6px}.cabinet-link.has-name{width:auto;padding:0 12px}.cabinet-link.has-name .cabinet-link__name{display:inline}.install-pwa-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:0 0;color:var(--text-muted);border-radius:var(--radius-md);transition:all var(--transition-fast);border:1px solid var(--border-color);font-size:1rem;cursor:pointer;padding:0}.install-pwa-btn:hover{background:var(--bg-secondary);color:var(--text-primary);border-color:var(--border-hover)}.install-pwa-btn.hidden{display:none}.cabinet-link.active,.cabinet-link:hover{background:var(--bg-secondary);color:var(--text-primary);border-color:var(--border-hover)}.search-container{position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:12px;color:var(--text-muted);font-size:.9rem;pointer-events:none}.search-input{background-color:transparent;border:1px solid var(--border-color);border-radius:var(--radius-md);padding:7px 14px 7px 34px;color:var(--text-primary);font-size:var(--font-size-sm);width:220px;transition:all var(--transition-fast);font-weight:400;font-family:inherit}.search-input:focus{outline:0;border-color:var(--accent-color);background-color:var(--bg-secondary);box-shadow:0 0 0 3px var(--accent-color-subtle)}.search-input::placeholder{color:var(--text-muted)}.theme-toggle{background:0 0;border:1px solid var(--border-color);color:var(--text-primary);font-size:1rem;cursor:pointer;padding:0;border-radius:var(--radius-md);transition:all var(--transition-fast);width:36px;height:36px;display:flex;align-items:center;justify-content:center}.theme-toggle:hover{color:var(--text-primary);background-color:var(--bg-secondary);border-color:var(--border-hover)}.cart-button{background-color:var(--accent-color);color:#fff;border:none;border-radius:var(--radius-md);padding:7px 14px;font-weight:500;font-size:var(--font-size-sm);cursor:pointer;display:flex;align-items:center;gap:6px;transition:all var(--transition-fast);height:36px;font-family:inherit}.cart-button i{font-size:1.05rem}.cart-button:hover{background-color:var(--accent-color-hover)}.cart-button:active{transform:scale(.97)}.cart-count{background-color:rgba(255,255,255,.2);color:#fff;border-radius:var(--radius-full);padding:0 5px;font-size:.7rem;font-weight:600;min-width:18px;height:18px;line-height:18px;text-align:center;display:inline-block}