.layout-producto {
        display: grid;
        grid-template-columns: 1fr 400px;
        gap: 30px;
        margin-top: 25px;
        margin-bottom: 40px;
    }
    .caja-detalles-anuncio {
        padding: 30px;
        margin-top: 25px;
    }
    .titulo-principal-anuncio {
        font-size: 26px;
        font-weight: 700;
        color: #0f172a;
        line-height: 1.3;
        margin-bottom: 15px;
    }
    .precio-destacado-anuncio {
        font-size: 34px;
        font-weight: 800;
        color: #16a34a;
        margin-bottom: 20px;
    }
    .meta-item-anuncio {
        display: flex;
        align-items: center;
        gap: 10px;
        color: #475569;
        font-size: 14px;
        margin-bottom: 12px;
    }
    .seccion-descripcion-texto {
        font-size: 15px;
        color: #334155;
        line-height: 1.7;
        white-space: pre-wrap;
    }
    .sidebar-contacto-fijo {
        position: sticky;
        top: 90px;
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    .tarjeta-contacto-vendedor {
        padding: 25px;
    }
    .btn-accion-contacto {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        width: 100%;
        padding: 14px;
        border-radius: 6px;
        font-size: 15px;
        font-weight: bold;
        text-decoration: none;
        margin-bottom: 12px;
        transition: transform 0.2s, background-color 0.2s;
        border: none;
        cursor: pointer;
    }
    .btn-accion-whatsapp {
        background-color: #22c55e;
        color: white;
        border: 1px solid #16a34a;
    }
    .btn-accion-whatsapp:hover {
        background-color: #16a34a;
        transform: translateY(-2px);
    }
    .btn-accion-llamada {
        background-color: var(--color-fondo);
        color: var(--color-texto);
        border: 1px solid #cbd5e1;
    }
    .btn-accion-llamada:hover {
        background-color: #e2e8f0;
    }
    .avatar-vendedor-perfil {
        width: 48px;
        height: 48px;
        border-radius: 50%;
        background-color: #e2e8f0;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
    }

    @media (max-width: 992px) {
        .layout-producto {
            grid-template-columns: 1fr;
        }
        .sidebar-contacto-fijo {
            position: static;
        }
    }