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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #111111;
    color: #ffffff;
    line-height: 1.6;
}

.header {
    background: #1a1a1a;
    padding: 2rem 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.header h1 {
    text-align: center;
    font-size: 2.5rem;
    color: #ffffff;
    max-width: 1200px;
    margin: 0 auto;
}

.header img {
    display: block;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .header img {
        max-width: 80%;
        height: auto;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.intro {
    text-align: center;
    margin-bottom: 3rem;
}

.intro p {
    font-size: 1.25rem;
    color: #a0a0a0;
    max-width: 700px;
    margin: 0 auto;
}

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

.marketplace-card {
    background: #1a1a1a;
    border-radius: 1rem;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #333;
}

.marketplace-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.marketplace-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.marketplace-content {
    padding: 1.5rem;
    text-align: center;
}

.marketplace-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    padding: 1rem;
    border-radius: 50%;
}

.shopee .marketplace-icon {
    background: #ff4d2d20;
    color: #ff4d2d;
}

.mercado-livre .marketplace-icon {
    background: #ffe60020;
    color: #ffe600;
}

.magalu .marketplace-icon {
    background: #0086ff20;
    color: #0086ff;
}

.marketplace-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.marketplace-description {
    color: #a0a0a0;
    margin-bottom: 1.5rem;
}

.shop-button {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: #333;
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.shopee .shop-button:hover {
    background: #ff4d2d;
}

.mercado-livre .shop-button:hover {
    background: #ffe600;
    color: #000;
}

.magalu .shop-button:hover {
    background: #0086ff;
}

.footer {
    background: #1a1a1a;
    padding: 2rem 1rem;
    text-align: center;
    margin-top: 3rem;
    border-top: 1px solid #333;
}

.footer p {
    color: #666;
}

.footer a {
    text-decoration: none;
    color: #666;
}

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

    .header h1 {
        font-size: 2rem;
    }
}