:root{--header-bg:#ffffff;--header-shadow:0 2px 16px rgba(0,0,0,0.04);--header-shadow-scroll:0 4px 24px rgba(0,0,0,0.08);--header-height:80px}.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:var(--header-bg);transition:all 0.4s cubic-bezier(0.4,0,0.2,1)}.header-top{background:linear-gradient(135deg,rgba(0,245,255,0.03) 0%,rgba(77,159,255,0.03) 50%,rgba(178,75,243,0.03) 100%);border-bottom:1px solid rgba(0,0,0,0.04);padding:8px 0;font-size:13px;transition:all 0.3s ease}.header-scrolled .header-top{padding:0;max-height:0;overflow:hidden;opacity:0}.header-top-content{display:flex;justify-content:space-between;align-items:center}.header-top-left,.header-top-right{display:flex;gap:24px;align-items:center}.header-top a{color:var(--gray-700);text-decoration:none;display:flex;align-items:center;gap:6px;font-weight:500;transition:all 0.3s ease}.header-top a:hover{color:var(--holo-purple)}.header-top svg{width:14px;height:14px}.header-main{padding:16px 0;background:var(--white-pure);position:relative;transition:all 0.4s cubic-bezier(0.4,0,0.2,1)}.header-scrolled .header-main{box-shadow:var(--header-shadow-scroll);padding:12px 0}.header-main-content{display:flex;align-items:center;justify-content:space-between;gap:32px}.logo{display:flex;align-items:center;gap:12px;text-decoration:none;position:relative;padding:8px 16px;border-radius:16px;transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.logo:hover{background:var(--gray-50);transform:translateY(-1px)}.logo img{width:64px;height:64px;object-fit:contain;filter:drop-shadow(0 2px 8px rgba(0,0,0,0.1))}.logo-text{display:none}nav{flex:1}.nav-menu{display:flex;align-items:center;gap:8px;list-style:none;margin:0;padding:0}.nav-item{position:relative}.nav-item>a{display:flex;align-items:center;padding:10px 16px;color:var(--gray-700);text-decoration:none;font-weight:500;font-size:15px;border-radius:12px;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);position:relative}.nav-item>a:hover{background:var(--gray-50);color:var(--gray-900)}.nav-item>a::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%) scaleX(0);width:80%;height:2px;background:linear-gradient(90deg,var(--holo-cyan),var(--holo-blue),var(--holo-purple));border-radius:2px;transition:transform 0.3s cubic-bezier(0.4,0,0.2,1)}.nav-item>a:hover::after{transform:translateX(-50%) scaleX(1)}.nav-item.has-dropdown>a::before{content:'';width:6px;height:6px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);margin-left:6px;transition:transform 0.3s ease}.nav-item.has-dropdown:hover>a::before{transform:rotate(225deg)}.dropdown-menu{position:absolute;top:calc(100%+8px);left:0;min-width:200px;background:var(--white-pure);border-radius:16px;box-shadow:0 8px 32px rgba(0,0,0,0.12);padding:8px;list-style:none;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all 0.3s cubic-bezier(0.4,0,0.2,1);border:1px solid var(--gray-100)}.nav-item.has-dropdown:hover .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-menu li a{display:block;padding:10px 16px;color:var(--gray-700);text-decoration:none;border-radius:10px;font-size:14px;font-weight:500;transition:all 0.2s ease}.dropdown-menu li a:hover{background:var(--gray-50);color:var(--gray-900);padding-left:20px}.header-actions{display:flex;align-items:center;gap:8px}.header-action-btn{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--white-pure);border:none;border-radius:50%;cursor:pointer;position:relative;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);color:var(--gray-700);box-shadow:4px 4px 12px rgba(0,0,0,0.06),-4px -4px 12px rgba(255,255,255,0.9)}.header-action-btn:hover{color:var(--gray-900);box-shadow:2px 2px 8px rgba(0,0,0,0.08),-2px -2px 8px rgba(255,255,255,1);transform:translateY(-2px)}.header-action-btn:active{box-shadow:inset 2px 2px 6px rgba(0,0,0,0.1),inset -2px -2px 6px rgba(255,255,255,0.7);transform:translateY(0)}.header-action-btn svg{width:22px;height:22px}.cart-count,.wishlist-count{position:absolute;top:-4px;right:-4px;background:linear-gradient(135deg,var(--holo-purple),var(--holo-violet));color:white;font-size:11px;font-weight:700;padding:2px 6px;border-radius:10px;min-width:20px;text-align:center;box-shadow:0 2px 8px rgba(178,75,243,0.4);animation:pulse-badge 2s ease-in-out infinite}@keyframes pulse-badge{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}.mobile-menu-toggle{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:5px;background:var(--white-pure);border:none;border-radius:12px;cursor:pointer;padding:0;box-shadow:4px 4px 12px rgba(0,0,0,0.06),-4px -4px 12px rgba(255,255,255,0.9);transition:all 0.3s ease}.mobile-menu-toggle:hover{box-shadow:2px 2px 8px rgba(0,0,0,0.08),-2px -2px 8px rgba(255,255,255,1)}.mobile-menu-toggle span{width:20px;height:2px;background:var(--gray-700);border-radius:2px;transition:all 0.3s ease}.mobile-menu-toggle:hover span{background:var(--gray-900)}.search-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.6);backdrop-filter:blur(10px);z-index:2000;display:flex;align-items:flex-start;justify-content:center;padding-top:100px;opacity:0;visibility:hidden;transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.search-overlay.active{opacity:1;visibility:visible}.search-container{width:100%;max-width:600px;padding:0 20px}.search-form{position:relative;background:var(--white-pure);border-radius:24px;box-shadow:0 20px 60px rgba(0,0,0,0.2);padding:8px;display:flex;align-items:center;gap:12px;border:2px solid transparent;transition:all 0.3s ease}.search-form:focus-within{border-color:var(--holo-purple);box-shadow:0 20px 60px rgba(0,0,0,0.2),0 0 0 4px rgba(178,75,243,0.1)}.search-input{flex:1;border:none;outline:none;font-size:18px;padding:16px 20px;background:transparent;color:var(--gray-900)}.search-input::placeholder{color:var(--gray-400)}.search-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--gray-100);border:none;border-radius:50%;cursor:pointer;color:var(--gray-700);transition:all 0.3s ease}.search-close:hover{background:var(--gray-200);color:var(--gray-900);transform:rotate(90deg)}.search-results{margin-top:16px;background:var(--white-pure);border-radius:20px;box-shadow:0 12px 40px rgba(0,0,0,0.15);max-height:400px;overflow-y:auto;padding:8px}.search-result-item{display:flex;align-items:center;gap:16px;padding:12px;border-radius:12px;text-decoration:none;color:var(--gray-900);transition:all 0.2s ease}.search-result-item:hover{background:var(--gray-50)}.search-result-item img{width:60px;height:60px;object-fit:cover;border-radius:10px}.search-result-info h4{font-size:15px;font-weight:600;margin-bottom:4px}.search-result-info p{font-size:14px;color:var(--gray-600)}.header-scrolled{box-shadow:var(--header-shadow-scroll)}.header-hidden{transform:translateY(-100%)}@media (max-width:992px){.header-main-content{gap:16px}nav{display:none}.mobile-menu-toggle{display:flex}.header-top-right{display:none}.header-actions{gap:4px}.header-action-btn{width:40px;height:40px}.header-action-btn svg{width:20px;height:20px}}@media (max-width:576px){.logo img{width:56px;height:56px}.header-top-left{gap:12px;font-size:12px}.header-top-left a span{display:none}}@keyframes shimmer{0%{background-position:-1000px 0}100%{background-position:1000px 0}}.header-loading{background:linear-gradient( 90deg,var(--gray-100) 0%,var(--gray-50) 50%,var(--gray-100) 100% );background-size:1000px 100%;animation:shimmer 2s infinite}