* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    background-color: #f4f6f8;
    color: #1a1a1a;
}

header {
    padding: 20px 40px;
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
}

.logo {
    font-weight: 800;
    font-size: 1.6rem;
    letter-spacing: 2px;
    color: #0f172a;
}

.product-container {
    max-width: 950px;
    margin: 40px auto;
    display: flex;
    gap: 40px;
    padding: 30px;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
}

.product-image img {
    width: 100%;
    max-width: 420px;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

.product-details {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.badge {
    background: #eff6ff;
    color: #2563eb;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    width: fit-content;
    margin-bottom: 12px;
}

h1 {
    font-size: 1.8rem;
    color: #0f172a;
    line-height: 1.2;
    margin-bottom: 10px;
}

.price {
    font-size: 2rem;
    font-weight: 800;
    color: #16a34a;
    margin-bottom: 15px;
}

.description {
    line-height: 1.6;
    color: #475569;
    margin-bottom: 20px;
}

.features {
    list-style: none;
    margin-bottom: 30px;
}

.features li {
    margin-bottom: 10px;
    font-size: 0.95rem;
    color: #334155;
}

.btn-buy {
    display: inline-block;
    text-align: center;
    background-color: #009ee3; /* Azul oficial de Mercado Pago */
    color: #ffffff;
    padding: 18px 24px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 4px 14px rgba(0, 158, 227, 0.35);
    transition: all 0.2s ease;
}

.btn-buy:hover {
    background-color: #0081b8;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 158, 227, 0.45);
}

@media (max-width: 768px) {
    .product-container {
        flex-direction: column;
        margin: 15px;
        padding: 20px;
    }

    .product-image img {
        max-width: 100%;
    }
}