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

:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
    --text-color: #333;
    --text-light: #666;
    --border-color: #e0e0e0;
    --background-light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-light);
}

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

/* Header */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    padding: 2rem 0;
    margin-bottom: 3rem;
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.tagline {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Category Sections */
.category-section {
    margin-bottom: 4rem;
}

.category-title {
    font-size: 1.8rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--accent-color);
    font-weight: 600;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
}

/* Product Card */
.product-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

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

.product-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background-color: var(--background-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-title {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.3;
}

.product-description {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    flex-grow: 1;
}

.product-description p {
    margin-bottom: 0.8rem;
}

.product-description ul {
    margin-left: 1.5rem;
    margin-bottom: 0.8rem;
}

.product-description li {
    margin-bottom: 0.3rem;
}

.product-description a {
    color: var(--accent-color);
    text-decoration: none;
}

.product-description a:hover {
    text-decoration: underline;
}

/* Product Options */
.product-options {
    margin-bottom: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.option-group {
    margin-bottom: 1rem;
}

.option-group:last-child {
    margin-bottom: 0;
}

.option-group label,
.option-label {
    display: block;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.option-value {
    display: inline-block;
    color: var(--text-color);
    padding: 0.5rem 0;
}

.option-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    color: var(--text-color);
    background-color: var(--white);
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.option-group select:hover {
    border-color: var(--accent-color);
}

.option-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* Product Price */
.product-price {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    background-color: var(--background-light);
    border-radius: 6px;
    margin-top: auto;
}

.price-label {
    font-weight: 600;
    color: var(--secondary-color);
    font-size: 1rem;
}

.price-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.25rem;
}

.price-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-color);
}

/* Discount Pricing */
.price-compare {
    font-size: 1.1rem;
    color: var(--text-light);
    text-decoration: line-through;
    font-weight: 400;
}

.price-sale {
    font-size: 1.8rem;
    font-weight: 700;
    color: #e74c3c;
}

.discount-badge {
    display: inline-block;
    background-color: #e74c3c;
    color: var(--white);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 2rem 0;
    margin-top: 4rem;
    text-align: center;
}

footer p {
    margin: 0;
}

/* Error Message */
.error {
    text-align: center;
    padding: 2rem;
    color: #e74c3c;
    font-size: 1.1rem;
}

/* Loading State */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card {
    animation: fadeIn 0.5s ease;
}