* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary-color: #0e9eff;
            --primary-dark: #0077cc;
            --text-dark: #1a1a1a;
            --text-gray: #666;
            --white: #ffffff;
            --shadow: 0 2px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 4px 30px rgba(14, 158, 255, 0.2);
            --gradient: linear-gradient(135deg, #0e9eff 0%, #0077cc 100%);
        }

        body {
            font-family: 'Cairo', sans-serif;
            background: #f8f9fa;
           
        }

        /* Main Header */
        .header {
            background: var(--white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: all 0.3s;
        }

        .header.scrolled {
            box-shadow: var(--shadow-lg);
        }

        .header-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 15px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
        }

        /* Logo */
        .logo-container {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            transition: all 0.3s;
        }

        .logo-container:hover .logo-icon {
            transform: rotate(360deg);
        }

        .logo-icon {
            width: 50px;
            height: 50px;
            background: var(--gradient);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(14, 158, 255, 0.3);
            transition: all 0.5s;
        }

        .logo-icon svg {
            width: 32px;
            height: 32px;
        }

        .logo-icon img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            border-radius: 12px;
        }

        .logo-text {
            display: flex;
            flex-direction: column;
        }

        .logo-title {
            font-size: 28px;
            font-weight: 900;
            color: var(--text-dark);
            line-height: 1;
        }

        .logo-subtitle {
            font-size: 11px;
            color: var(--text-gray);
            font-weight: 600;
        }

        /* Navigation */
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 5px;
            list-style: none;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 12px 20px;
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 700;
            font-size: 15px;
            border-radius: 10px;
            transition: all 0.3s;
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary-color);
            background: rgba(14, 158, 255, 0.05);
        }

        .nav-link.active {
            color: var(--primary-color);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 8px;
            right: 20px;
            left: 20px;
            height: 3px;
            background: var(--primary-color);
            border-radius: 10px;
        }

        /* Header Actions */
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-toggle {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: rgba(14, 158, 255, 0.1);
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 18px;
            transition: all 0.3s;
            color: var(--primary-color);
        }

        .search-toggle:hover {
            background: var(--primary-color);
            color: white;
            transform: scale(1.1);
        }

        .cart-btn {
            position: relative;
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--gradient);
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: white;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(14, 158, 255, 0.3);
        }

        .cart-icon {
            width: 20px;
            height: 20px;
            fill: currentColor;
        }

        .cart-btn:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .cart-badge {
            position: absolute;
            top: -8px;
            right: -8px;
            background: #ff4757;
            color: white;
            font-size: 11px;
            font-weight: 800;
            padding: 3px 7px;
            border-radius: 50%;
            min-width: 20px;
            height: 20px;
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid white;
            box-shadow: 0 2px 8px rgba(255, 71, 87, 0.3);
        }

        .auth-btn {
            padding: 10px 24px;
            border: none;
            border-radius: 25px;
            font-family: 'Cairo', sans-serif;
            font-size: 14px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-login {
            background: transparent;
            color: var(--text-dark);
            border: 2px solid #e0e0e0;
        }

        .btn-login:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
        }

        .btn-register {
            background: var(--gradient);
            color: white;
            box-shadow: 0 4px 15px rgba(14, 158, 255, 0.3);
        }

        .btn-register:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        /* Mobile Menu Toggle */
        .mobile-menu-toggle {
            display: none;
            width: 45px;
            height: 45px;
            border-radius: 10px;
            background: rgba(14, 158, 255, 0.1);
            border: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .mobile-menu-toggle span {
            width: 24px;
            height: 3px;
            background: var(--primary-color);
            border-radius: 10px;
            transition: all 0.3s;
        }

        .mobile-menu-toggle:hover {
            background: var(--primary-color);
        }

        .mobile-menu-toggle:hover span {
            background: white;
        }

        .mobile-menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }

        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        /* Search Bar Overlay */
        .search-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.9);
            z-index: 2000;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .search-overlay.active {
            display: flex;
        }

        .search-box {
            max-width: 700px;
            width: 100%;
            position: relative;
        }

        .search-input {
            width: 100%;
            padding: 20px 60px 20px 30px;
            border: none;
            border-radius: 50px;
            font-family: 'Cairo', sans-serif;
            font-size: 18px;
            font-weight: 600;
            outline: none;
            box-shadow: var(--shadow-lg);
        }

        .search-submit {
            position: absolute;
            left: 10px;
            top: 50%;
            transform: translateY(-50%);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--gradient);
            border: none;
            color: white;
            font-size: 20px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .search-submit:hover {
            transform: translateY(-50%) scale(1.1);
        }

        .search-close {
            position: absolute;
            top: 30px;
            left: 30px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: rgba(255,255,255,0.1);
            border: 2px solid white;
            color: white;
            font-size: 24px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .search-close:hover {
            background: white;
            color: var(--text-dark);
            transform: rotate(90deg);
        }

        /* Promotional Banner */
        .promo-banner {
            background: var(--gradient);
            color: white;
            text-align: center;
            padding: 12px 20px;
            font-size: 14px;
            font-weight: 700;
            animation: slideDown 0.5s ease;
        }

        @keyframes slideDown {
            from {
                transform: translateY(-100%);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        .promo-banner span {
            background: rgba(255,255,255,0.2);
            padding: 4px 12px;
            border-radius: 15px;
            margin: 0 8px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-menu {
                display: none;
            }

            .mobile-menu-toggle {
                display: flex;
            }

            .auth-btn {
                display: none;
            }

            .header-content {
                gap: 15px;
            }
        }

        @media (max-width: 768px) {
            .top-bar-content {
                justify-content: center;
                text-align: center;
            }

            .top-bar-item span {
                display: none;
            }

            .logo-title {
                font-size: 24px;
            }

            .logo-subtitle {
                display: none;
            }

            .search-input {
                font-size: 16px;
                padding: 18px 55px 18px 20px;
            }

            .promo-banner {
                font-size: 11px;
                padding: 10px 15px;
            }

            .promo-banner span {
                padding: 3px 8px;
                margin: 0 4px;
            }
        }

        /* Mobile Menu Dropdown */
        .mobile-nav {
            display: none;
            background: white;
            border-top: 1px solid #e0e0e0;
            padding: 20px;
            animation: slideDown 0.3s ease;
        }

        .mobile-nav.active {
            display: block;
        }

        .mobile-nav-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .mobile-nav-link {
            display: block;
            padding: 15px;
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 700;
            border-radius: 10px;
            transition: all 0.3s;
            text-align: right;
        }

        .mobile-nav-link:hover,
        .mobile-nav-link.active {
            background: rgba(14, 158, 255, 0.1);
            color: var(--primary-color);
        }

        .mobile-auth {
            display: flex;
            gap: 10px;
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px solid #e0e0e0;
        }

        .mobile-auth .auth-btn {
            display: flex;
            flex: 1;
            justify-content: center;
        }