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

body {
    font-family: 'Malgun Gothic', 'Apple SD Gothic Neo', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    color: #2c3e50;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #3498db;
}

.cart-icon {
    background-color: #3498db;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
}

.hero {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 100px 20px;
    text-align: center;
    background-image: url('https://images.unsplash.com/photo-1583336663277-620dc1996580?w=1600&h=800&fit=crop');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.btn-primary {
    display: inline-block;
    padding: 12px 30px;
    background-color: #fff;
    color: #f5576c;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.products-section {
    padding: 80px 20px;
    background-color: #fff;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c3e50;
    font-weight: 700;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    border: 2px solid #3498db;
    background-color: transparent;
    color: #3498db;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s;
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: #3498db;
    color: white;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.product-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    background-color: #f0f0f0;
}

.product-info {
    padding: 1.5rem;
}

.product-category {
    display: inline-block;
    padding: 5px 12px;
    background-color: #e8f4f8;
    color: #3498db;
    border-radius: 15px;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.product-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #e74c3c;
    margin-bottom: 1rem;
}

.add-to-cart {
    width: 100%;
    padding: 10px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
    font-weight: 600;
}

.add-to-cart:hover {
    background-color: #2980b9;
}

.breeds-section {
    padding: 80px 20px;
    background-color: #f8f9fa;
}

.breeds-content {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.breed-category h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #2c3e50;
    text-align: center;
}

.breeds-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.breed-card {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.breed-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.breed-info {
    padding: 1.5rem;
}

.breed-info h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.breed-info p {
    margin-bottom: 0.5rem;
    color: #555;
    line-height: 1.6;
}

.behavior-section {
    padding: 80px 20px;
    background-color: #fff;
}

.behavior-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.behavior-category {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.behavior-category h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.behavior-category ul {
    list-style: none;
}

.behavior-category ul li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    color: #555;
    line-height: 1.6;
}

.behavior-category ul li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
    font-size: 1.2rem;
}

.essentials-section {
    padding: 80px 20px;
    background-color: #f8f9fa;
}

.essentials-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.essentials-category {
    background-color: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.essentials-category h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.essentials-category ul {
    list-style: none;
}

.essentials-category ul li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    color: #555;
    line-height: 1.6;
}

.essentials-category ul li:before {
    content: "·";
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
    font-size: 1.2rem;
}

.contact-section {
    padding: 80px 20px;
    background-color: #fff;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #555;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #3498db;
}

footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 50px 20px 20px;
}

.footer-divider {
    height: 3px;
    background: linear-gradient(90deg, #f093fb 0%, #f5576c 100%);
    margin-bottom: 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #fff;
}

.footer-column p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: #bdc3c7;
    margin-bottom: 0.5rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.5rem;
}

.footer-column ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-column ul li a:hover {
    color: #3498db;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #95a5a6;
}

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: #fff;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 600px;
    position: relative;
}

.close {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    color: #999;
}

.close:hover {
    color: #333;
}

@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 1rem;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

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

    .behavior-content,
    .essentials-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .footer-content {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 60px 20px;
    }
}