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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, sans-serif;
    background: #f4f7fb;
    color: #1f1f1f;
}

.topbar {
    background: linear-gradient(135deg, #0f4c81, #3aa0d8);
    color: white;
    padding: 20px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
}

.topbar-contenido {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.marca h1 {
    font-size: 2.2rem;
    margin-bottom: 6px;
}

.marca p {
    font-size: 1rem;
}

.boton-carrito {
    background: white;
    color: #0f4c81;
    text-decoration: none;
    padding: 12px 18px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
    transition: transform 0.2s ease, background 0.2s ease;
}

.boton-carrito:hover {
    transform: translateY(-2px);
    background: #eef7fd;
}

.icono-carrito {
    font-size: 1.3rem;
}

.contador-carrito {
    min-width: 28px;
    height: 28px;
    background: #d9534f;
    color: white;
    border-radius: 50%;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-size: 0.95rem;
    padding: 4px;
}

.contenedor {
    max-width: 1400px;
    margin: 0 auto;
    padding: 25px;
}

.catalogo h2,
.panel-carrito h2 {
    margin-bottom: 18px;
    color: #0f4c81;
}

.grid-productos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.producto {
    background: white;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    padding: 15px;
    transition: transform 0.2s ease;
}

.producto:hover {
    transform: translateY(-4px);
}

.producto img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 12px;
}

.producto h3 {
    font-size: 1.1rem;
    color: #0f4c81;
    margin-bottom: 8px;
}

.producto p {
    margin-bottom: 8px;
    line-height: 1.4;
}

.categoria {
    color: #666;
    font-size: 0.95rem;
}

.precio {
    font-size: 1.2rem;
    font-weight: bold;
    color: #1b7a3d;
}

.producto button {
    width: 100%;
    padding: 11px;
    background: #0f4c81;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.2s ease;
}

.producto button:hover {
    background: #0b3a63;
}

.panel-carrito {
    background: white;
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    margin-bottom: 30px;
}

.item-carrito {
    border-bottom: 1px solid #ddd;
    padding: 16px 0;
}

.item-info {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.miniatura-carrito {
    width: 85px;
    height: 85px;
    object-fit: cover;
    border-radius: 10px;
    border: 1px solid #ddd;
}

.item-carrito h4 {
    color: #0f4c81;
    margin-bottom: 6px;
}

.item-carrito p {
    margin-bottom: 6px;
}

.controles-cantidad {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.controles-cantidad button {
    width: 32px;
    height: 32px;
    border: none;
    background: #3aa0d8;
    color: white;
    font-weight: bold;
    border-radius: 6px;
    cursor: pointer;
}

.controles-cantidad button:hover {
    background: #0f4c81;
}

.btn-eliminar {
    background: #d9534f;
    color: white;
    border: none;
    padding: 9px 12px;
    border-radius: 7px;
    cursor: pointer;
    font-weight: bold;
}

.btn-eliminar:hover {
    background: #b52b27;
}

.resumen-carrito {
    margin-top: 20px;
    padding-top: 15px;
}

#btn-comprar {
    width: 100%;
    margin-top: 18px;
    padding: 12px;
    background: #1fa35b;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
}

#btn-comprar:hover {
    background: #157945;
}

#mensaje {
    margin-top: 15px;
    color: #0f4c81;
    font-weight: bold;
    line-height: 1.4;
}

#link-json {
    display: none;
    margin-top: 12px;
    color: #0f4c81;
    font-weight: bold;
    text-decoration: none;
}

#link-json:hover {
    text-decoration: underline;
}

.carrito-vacio {
    color: #666;
    font-style: italic;
}

@media (max-width: 768px) {
    .topbar-contenido {
        flex-direction: column;
        align-items: flex-start;
    }

    .boton-carrito {
        align-self: stretch;
        justify-content: center;
    }

    .item-info {
        flex-direction: column;
        align-items: flex-start;
    }

    .miniatura-carrito {
        width: 100%;
        max-width: 180px;
        height: auto;
    }
}