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

body {
    font-family: 'Inter', sans-serif;
    background: #000;
    color: #fff;
    line-height: 1.6;
}

.container { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 0 20px; 
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0,0,0,0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid #333;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand { 
    color: #3b82f6; 
    font-size: 1.5rem; 
    font-weight: 700; 
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover, 
.nav-link.active { 
    color: #3b82f6; 
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    position: relative;
    transition: background 0.3s;
}

.icon-btn:hover { 
    background: rgba(59,130,246,0.1); 
}

.cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: #ef4444;
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 0.7rem;
    display: none;
    align-items: center;
    justify-content: center;
}

.mobile-menu-btn { 
    display: none; 
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #000 0%, #1a1a1a 100%);
    position: relative;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, rgba(0,0,0,0.8) 70%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    padding: 2rem;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: #ccc;
    margin-bottom: 2rem;
}

.cta-btn {
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    font-size: 1.1rem;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.cta-btn:hover { 
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
}

/* Sections */
.section {
    padding: 5rem 0;
    background: #111;
}

.section:nth-child(even) { 
    background: #000; 
}

.section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #fff;
}

.section p {
    text-align: center;
    color: #ccc;
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto 2rem;
}

/* Filters */
.filters {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.filters select {
    padding: 0.75rem 1rem;
    background: #222;
    border: 1px solid #333;
    color: #fff;
    border-radius: 8px;
    cursor: pointer;
    transition: border-color 0.3s;
}

.filters select:focus {
    outline: none;
    border-color: #3b82f6;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: #222;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #333;
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: #3b82f6;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.product-image {
    height: 200px;
    background: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    position: relative;
    font-size: 0.9rem;
}

.product-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: #ef4444;
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.product-info { 
    padding: 1.5rem; 
}

.product-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #fff;
}

.product-description {
    color: #ccc;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: #fbbf24;
    font-size: 0.9rem;
}

.product-price {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.price {
    font-size: 1.25rem;
    font-weight: 700;
    color: #3b82f6;
}

.original-price {
    text-decoration: line-through;
    color: #999;
    font-size: 1rem;
}

.add-to-cart {
    width: 100%;
    padding: 0.75rem;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.add-to-cart:hover { 
    transform: translateY(-1px);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.4);
}

/* About Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat {
    text-align: center;
    padding: 2rem;
    background: #222;
    border-radius: 12px;
    border: 1px solid #333;
    transition: transform 0.3s;
}

.stat:hover {
    transform: translateY(-5px);
}

.stat h3 {
    font-size: 2rem;
    color: #3b82f6;
    margin-bottom: 0.5rem;
}

.stat p {
    color: #ccc;
    margin: 0;
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.contact-info h3 { 
    margin-bottom: 1rem;
    color: #fff;
}

.contact-info p { 
    margin-bottom: 0.5rem;
    color: #ccc;
}

.contact-form {
    background: #222;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid #333;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    background: #333;
    border: 1px solid #444;
    border-radius: 8px;
    color: #fff;
    font-family: inherit;
    transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #3b82f6;
}

.contact-form button {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s;
}

.contact-form button:hover {
    transform: translateY(-1px);
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal-content {
    background: #111;
    border-radius: 12px;
    padding: 2rem;
    width: 90%;
    max-width: 600px;
    position: relative;
    border: 1px solid #333;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
}

.close-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s;
}

.close-btn:hover {
    color: #3b82f6;
}

#search-input {
    width: 100%;
    padding: 1rem;
    background: #222;
    border: 2px solid #333;
    color: #fff;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

#search-input:focus {
    outline: none;
    border-color: #3b82f6;
}

#search-results {
    max-height: 300px;
    overflow-y: auto;
}

/* Cart */
.cart-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #222;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid #333;
}

.cart-item-image {
    width: 60px;
    height: 60px;
    background: #333;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: #666;
}

.cart-item-info { 
    flex: 1; 
}

.cart-item-title {
    color: #fff;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.cart-item-price {
    color: #3b82f6;
    font-weight: 600;
}

.cart-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cart-controls button {
    background: #333;
    border: none;
    color: #fff;
    width: 30px;
    height: 30px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.cart-controls button:hover {
    background: #3b82f6;
}

.cart-footer {
    border-top: 1px solid #333;
    padding-top: 1rem;
    margin-top: 1rem;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #fff;
}

.cart-total span {
    color: #3b82f6;
}

.checkout-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s;
}

.checkout-btn:hover {
    transform: translateY(-1px);
}

.empty-cart {
    text-align: center;
    padding: 2rem;
    color: #666;
}

/* Notification */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    background: #10b981;
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    display: none;
    align-items: center;
    gap: 1rem;
    z-index: 3000;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.5s ease;
}

.notification.error { 
    background: #ef4444; 
}

.notification button {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    margin-left: 1rem;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(0,0,0,0.98);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: left 0.3s;
    }
    
    .nav-menu.active { 
        left: 0; 
    }
    
    .nav-menu .nav-link {
        font-size: 1.2rem;
        margin: 1rem 0;
    }
    
    .mobile-menu-btn { 
        display: block;
        background: none;
        border: none;
        color: #fff;
        font-size: 1.5rem;
        cursor: pointer;
    }
    
    .hero h1 { 
        font-size: 2rem; 
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .section h2 { 
        font-size: 2rem; 
    }
    
    .stats, 
    .contact-grid { 
        grid-template-columns: 1fr; 
        gap: 1.5rem;
    }
    
    .filters { 
        flex-direction: column; 
        align-items: center;
        gap: 0.5rem;
    }
    
    .filters select {
        width: 200px;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
        padding: 1.5rem;
    }
    
    .notification {
        right: 10px;
        left: 10px;
        top: 80px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 1rem 15px;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .cart-item {
        flex-direction: column;
        text-align: center;
    }
    
    .cart-controls {
        justify-content: center;
    }
}