/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #00D4FF;
    --primary-dark: #1a1a1a;
    --primary-orange: #FF6B35;
    --bg-white: #ffffff;
    --bg-gray: #f8f9fa;
    --text-dark: #2d3748;
    --text-gray: #718096;
    --text-light: #a0aec0;
    --border-color: #e2e8f0;
    --success-green: #48bb78;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --spacing: 8px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing);
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #2d3748 100%);
    color: white;
    padding: var(--spacing) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.header-content {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 3);
}

.logo {
    flex-shrink: 0;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 1.5);
}

.logo-icon {
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.logo-icon:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.4));
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.logo-accent {
    color: var(--primary-blue);
}

.search-container {
    flex: 1;
    position: relative;
    max-width: 600px;
}

.search-input {
    width: 100%;
    padding: calc(var(--spacing) * 1.5) calc(var(--spacing) * 2);
    padding-right: calc(var(--spacing) * 6);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    background: white;
    color: var(--text-dark);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.3);
}

.search-btn {
    position: absolute;
    right: calc(var(--spacing) * 1.5);
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: calc(var(--spacing) * 1);
    border-radius: calc(var(--border-radius) / 2);
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    background: #00b8e6;
    transform: translateY(-50%) scale(1.05);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing);
}

.icon-btn {
    background: none;
    border: none;
    color: white;
    padding: calc(var(--spacing) * 1);
    border-radius: calc(var(--border-radius) / 2);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.05);
}

.cart-count {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--primary-orange);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0);
    transition: var(--transition);
}

.cart-count.visible {
    transform: scale(1);
}

/* Breadcrumb */
.breadcrumb {
    background: var(--bg-gray);
    padding: calc(var(--spacing) * 1.5) 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb span {
    font-size: 0.875rem;
    color: var(--text-gray);
}

.breadcrumb-separator {
    margin: 0 calc(var(--spacing) * 1);
}

.breadcrumb-current {
    color: var(--text-dark) !important;
    font-weight: 500;
}

/* Main Content */
.main-content {
    padding: calc(var(--spacing) * 3) 0;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: calc(var(--spacing) * 4);
}

/* Sidebar */
.sidebar {
    background: white;
    border-radius: var(--border-radius);
    padding: calc(var(--spacing) * 3);
    box-shadow: var(--shadow);
    height: fit-content;
    position: sticky;
    top: calc(var(--spacing) * 10);
}

.filter-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing) * 3);
    color: var(--text-dark);
}

.filter-group {
    margin-bottom: calc(var(--spacing) * 3);
    padding-bottom: calc(var(--spacing) * 3);
    border-bottom: 1px solid var(--border-color);
}

.filter-group:last-child {
    border-bottom: none;
}

.filter-group h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing) * 2);
    color: var(--text-dark);
}

.filter-item {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 1);
    margin-bottom: calc(var(--spacing) * 1);
    cursor: pointer;
    transition: var(--transition);
    padding: calc(var(--spacing) * 0.5);
    border-radius: calc(var(--border-radius) / 2);
}

.filter-item:hover {
    background: var(--bg-gray);
}

.filter-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
}

.filter-item input[type="checkbox"]:checked {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
}

.filter-item span {
    font-size: 0.875rem;
    color: var(--text-gray);
    user-select: none;
}

/* Product Area */
.product-area {
    background: white;
    border-radius: var(--border-radius);
    padding: calc(var(--spacing) * 3);
    box-shadow: var(--shadow);
}

.results-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: calc(var(--spacing) * 3);
    padding-bottom: calc(var(--spacing) * 2);
    border-bottom: 1px solid var(--border-color);
}

.results-summary h2 {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-dark);
}

.sort-select {
    padding: calc(var(--spacing) * 1) calc(var(--spacing) * 2);
    border: 1px solid var(--border-color);
    border-radius: calc(var(--border-radius) / 2);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

/* Promo Banner */
.promo-banner {
    background: linear-gradient(135deg, var(--primary-orange) 0%, #ff8c42 100%);
    color: white;
    padding: calc(var(--spacing) * 3);
    border-radius: var(--border-radius);
    margin-bottom: calc(var(--spacing) * 4);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.promo-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(0) translateY(0) rotate(45deg); }
}

.promo-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: calc(var(--spacing) * 1);
}

.promo-content p {
    font-size: 0.875rem;
    opacity: 0.9;
}

.promo-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: calc(var(--spacing) * 0.5) calc(var(--spacing) * 1.5);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: calc(var(--spacing) * 1);
}

.promo-timer {
    display: flex;
    gap: calc(var(--spacing) * 2);
}

.timer-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: calc(var(--spacing) * 1.5);
    border-radius: calc(var(--border-radius) / 2);
    backdrop-filter: blur(10px);
}

.timer-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.timer-label {
    font-size: 0.75rem;
    opacity: 0.8;
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: calc(var(--spacing) * 3);
    margin-bottom: calc(var(--spacing) * 4);
}

.product-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: calc(var(--spacing) * 2);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(255, 107, 53, 0.05) 100%);
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.product-card:hover::before {
    opacity: 1;
}

.product-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: calc(var(--border-radius) / 2);
    margin-bottom: calc(var(--spacing) * 2);
    transition: var(--transition);
}

.product-card:hover .product-image {
    transform: scale(1.02);
}

.product-badges {
    position: absolute;
    top: calc(var(--spacing) * 2);
    left: calc(var(--spacing) * 2);
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 0.5);
    z-index: 2;
}

.badge {
    padding: calc(var(--spacing) * 0.5) calc(var(--spacing) * 1);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge-sale {
    background: var(--primary-orange);
    color: white;
}

.badge-bestseller {
    background: var(--success-green);
    color: white;
}

.badge-new {
    background: var(--primary-blue);
    color: white;
}

.product-info {
    position: relative;
    z-index: 1;
}

.product-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing) * 1);
    color: var(--text-dark);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 1);
    margin-bottom: calc(var(--spacing) * 1);
}

.stars {
    color: #ffc107;
    font-size: 0.875rem;
}

.rating-count {
    font-size: 0.875rem;
    color: var(--text-gray);
}

.product-pricing {
    margin-bottom: calc(var(--spacing) * 2);
}

.current-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-orange);
}

.original-price {
    font-size: 0.875rem;
    color: var(--text-light);
    text-decoration: line-through;
    margin-left: calc(var(--spacing) * 1);
}

.discount-percent {
    background: var(--primary-orange);
    color: white;
    padding: calc(var(--spacing) * 0.25) calc(var(--spacing) * 0.5);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: calc(var(--spacing) * 1);
}

.product-actions {
    display: flex;
    gap: calc(var(--spacing) * 1);
}

.btn {
    padding: calc(var(--spacing) * 1.5) calc(var(--spacing) * 2);
    border: none;
    border-radius: calc(var(--border-radius) / 2);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: calc(var(--spacing) * 1);
}

.btn-primary {
    background: var(--primary-blue);
    color: white;
    flex: 1;
}

.btn-primary:hover {
    background: #00b8e6;
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-gray);
    border: 1px solid var(--border-color);
    flex: 1;
}

.btn-secondary:hover {
    background: var(--bg-gray);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: calc(var(--spacing) * 1);
    margin-top: calc(var(--spacing) * 4);
}

.pagination-btn {
    padding: calc(var(--spacing) * 1.5) calc(var(--spacing) * 2);
    border: 1px solid var(--border-color);
    background: white;
    color: var(--text-gray);
    border-radius: calc(var(--border-radius) / 2);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
    font-weight: 500;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
}

.pagination-btn.active {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-dots {
    color: var(--text-gray);
    font-weight: 500;
}

/* Testimonials */
.testimonials {
    background: var(--bg-gray);
    padding: calc(var(--spacing) * 8) 0;
}

.testimonials h2 {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: calc(var(--spacing) * 6);
    color: var(--text-dark);
}

.testimonial-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: var(--border-radius);
}

.testimonial-item {
    background: white;
    padding: calc(var(--spacing) * 4);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateX(100%);
    transition: var(--transition);
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
}

.testimonial-item.active {
    opacity: 1;
    transform: translateX(0);
    position: relative;
}

.testimonial-content .rating {
    font-size: 1.25rem;
    margin-bottom: calc(var(--spacing) * 2);
}

.testimonial-content p {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--text-dark);
    margin-bottom: calc(var(--spacing) * 3);
    font-style: italic;
}

.testimonial-author strong {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
}

.testimonial-author span {
    font-size: 0.875rem;
    color: var(--text-gray);
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: calc(var(--spacing) * 1);
    margin-top: calc(var(--spacing) * 4);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary-blue);
}

.dot:hover {
    background: var(--primary-blue);
    transform: scale(1.2);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #2d3748 100%);
    color: white;
    padding: calc(var(--spacing) * 8) 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: calc(var(--spacing) * 2);
    line-height: 1.2;
}

.cta-content p {
    font-size: 1.125rem;
    margin-bottom: calc(var(--spacing) * 4);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
    background: var(--success-green);
    color: white;
    padding: calc(var(--spacing) * 2) calc(var(--spacing) * 4);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-size: 1.125rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.cta-btn:hover {
    background: #38a169;
    transform: translateY(-2px);
    box-shadow: 0 20px 40px -12px rgba(72, 187, 120, 0.4);
}

/* Footer */
.footer {
    background: var(--primary-dark);
    color: white;
    padding: calc(var(--spacing) * 6) 0 calc(var(--spacing) * 3);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: calc(var(--spacing) * 4);
    margin-bottom: calc(var(--spacing) * 4);
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing) * 2);
    color: var(--primary-blue);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: calc(var(--spacing) * 2);
    line-height: 1.6;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: calc(var(--spacing) * 1);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-blue);
}

.social-links {
    display: flex;
    gap: calc(var(--spacing) * 2);
    margin-top: calc(var(--spacing) * 2);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-blue);
    transform: translateY(-2px);
}

.contact-info p {
    margin-bottom: calc(var(--spacing) * 1);
    font-size: 0.875rem;
}

.footer-bottom {
    text-align: center;
    padding-top: calc(var(--spacing) * 3);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Cart Notification */
.cart-notification {
    position: fixed;
    top: calc(var(--spacing) * 10);
    right: calc(var(--spacing) * 3);
    background: var(--success-green);
    color: white;
    padding: calc(var(--spacing) * 2) calc(var(--spacing) * 3);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    transition: var(--transition);
    z-index: 1000;
}

.cart-notification.show {
    transform: translateX(0);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 1);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .content-wrapper {
        grid-template-columns: 240px 1fr;
        gap: calc(var(--spacing) * 2);
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: calc(var(--spacing) * 2);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: calc(var(--spacing) * 3);
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: calc(var(--spacing) * 2);
    }
    
    .search-container {
        order: 2;
        max-width: 100%;
    }
    
    .header-actions {
        order: 1;
        align-self: flex-end;
    }
    
    .content-wrapper {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing) * 3);
    }
    
    .sidebar {
        order: 2;
        position: static;
    }
    
    .product-area {
        order: 1;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .results-summary {
        flex-direction: column;
        align-items: flex-start;
        gap: calc(var(--spacing) * 2);
    }
    
    .promo-banner {
        flex-direction: column;
        text-align: center;
        gap: calc(var(--spacing) * 3);
    }
    
    .promo-timer {
        justify-content: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .cta-btn {
        font-size: 1rem;
        padding: calc(var(--spacing) * 2) calc(var(--spacing) * 3);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 calc(var(--spacing) * 2);
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: calc(var(--spacing) * 0.5);
    }
    
    .pagination-btn {
        padding: calc(var(--spacing) * 1) calc(var(--spacing) * 1.5);
        font-size: 0.8rem;
    }
    
    .header-content {
        align-items: stretch;
    }
    
    .logo-text {
        font-size: 1.5rem;
    }
    
    .cta-content h2 {
        font-size: 1.75rem;
    }
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 2s infinite;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus Styles for Accessibility */
*:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

button:focus,
input:focus,
select:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.3);
}