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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

/* Announcement Bar */
.announcement-bar {
    background-color: #007bff;
    color: #fff;
    text-align: center;
    padding: 10px;
    font-size: 14px;
}

/* Sticky Header */
.sticky-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #007bff;
}

nav ul {
    list-style: none;
    display: flex;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
}

.cart-icon {
    font-size: 24px;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    background-image: url('https://via.placeholder.com/1200x600');
    background-size: cover;
    background-position: center;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    text-align: center;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 10px;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 20px;
}

.cta-button {
    background-color: #007bff;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

/* Feature Highlights */
.feature-highlights {
    padding: 40px 20px;
    text-align: center;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.grid-item {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* Flash Sale Section */
.flash-sale {
    padding: 40px 20px;
    text-align: center;
    background-color: #f1f1f1;
}

.countdown-timer {
    font-size: 24px;
    margin-bottom: 20px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.product-card {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.product-card img {
    width: 100%;
    height: auto;
}

.product-card button {
    background-color: #007bff;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
}

/* Product Categories */
.product-categories {
    padding: 40px 20px;
    text-align: center;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.category-item {
    position: relative;
}

.category-item img {
    width: 100%;
    height: auto;
}

.overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 24px;
    font-weight: bold;
    background-color: rgba(0, 0, 0, 0.5);
    padding: 10px 20px;
    border-radius: 5px;
}

/* Testimonials */
.testimonials {
    padding: 40px 20px;
    text-align: center;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.testimonial-item {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* Newsletter Signup */
.newsletter {
    padding: 40px 20px;
    text-align: center;
    background-color: #f1f1f1;
}

.newsletter form {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.newsletter input {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-right: 10px;
}

.newsletter button {
    background-color: #007bff;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

/* Footer */
.footer {
    padding: 20px;
    background-color: #333;
    color: #fff;
    text-align: center;
}

.footer-links a {
    color: #fff;
    text-decoration: none;
    margin: 0 10px;
}

.social-icons a {
    color: #fff;
    text-decoration: none;
    margin: 0 10px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .grid-container, .product-grid, .category-grid, .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .grid-container, .product-grid, .category-grid, .testimonial-grid {
        grid-template-columns: 1fr;
    }
}