/* Modern CSS Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Variables */
:root {
    --primary-color: #3B82F6;
    --secondary-color: #F59E0B;
    --text-color: #1F2937;
    --light-text: #6B7280;
    --background: #F3F4F6;
    --white: #FFFFFF;
    --max-width: 1200px;
    --border-radius: 8px;
}

/* Base Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

a {
    text-decoration: none;
    color: inherit;
}

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-color);
    transition: color 0.3s ease;
}

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

.cart-icon {
    font-size: 1.25rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), #6366F1);
    color: var(--white);
    padding: 8rem 1rem 4rem;
    text-align: center;
}

.hero-content {
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.highlight {
    color: var(--secondary-color);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    background: var(--secondary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background: #D97706;
}

/* Products Section */
.products {
    padding: 4rem 1rem;
    background: var(--background);
}

.products h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.product-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-4px);
}

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-card h3 {
    padding: 1rem;
    font-size: 1.25rem;
}

.product-card p {
    padding: 0 1rem;
    color: var(--light-text);
}

.product-footer {
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--background);
    margin-top: 1rem;
}

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

.add-to-cart {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.add-to-cart:hover {
    background: #2563EB;
}

/* Features Section */
.features {
    padding: 4rem 1rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: center;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature h3 {
    margin-bottom: 0.5rem;
}

.feature p {
    color: var(--light-text);
}

/* Footer */
footer {
    background: var(--text-color);
    color: var(--white);
    padding: 4rem 1rem 1rem;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section a {
    display: block;
    margin-bottom: 0.5rem;
    color: #9CA3AF;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-icon {
    font-size: 1.5rem;
}

.footer-bottom {
    text-align: center;
    margin-top: 3rem;
    padding-top: 1rem;
    border-top: 1px solid #374151;
    color: #9CA3AF;
}

/* Mobile Menu Button */
.mobile-menu-button {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-color);
}

/* Reviews Section */
.reviews {
    padding: 4rem 1rem;
    background: var(--background);
}

.reviews h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.review-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.review-card:hover {
    transform: translateY(-4px);
}

.review-header {
    margin-bottom: 1rem;
}

.stars {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.review-card h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.review-text {
    color: var(--light-text);
    font-style: italic;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.reviewer {
    color: var(--primary-color);
    font-weight: bold;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-button {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }
    
    .product-grid,
    .features-grid,
    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-section {
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .product-card {
        max-width: 400px;
        margin: 0 auto;
    }

    .reviews-grid {
        grid-template-columns: 1fr;
    }

    .review-card {
        max-width: 400px;
        margin: 0 auto;
    }
}